chore: release (#202)

Co-authored-by: edera-cultivation[bot] <165992271+edera-cultivation[bot]@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,34 @@
+name: Bug Report
+description: File a bug report.
+title: "bug: "
+labels: ["bug"]
+assignees:
+  - edera-dev/engineering
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: Also tell us, what did you expect to happen?
+      placeholder: Tell us what you see!
+      value: "A bug happened!"
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: Version / Commit
+      description: What version of our software are you running?
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant log output
+      description: Please copy and paste any relevant log output. This will be automatically formatted into code, so no need for backticks.
+      render: shell
+

.github/dependabot.yml

@@ -4,7 +4,32 @@ updates:
   directory: "/"
   schedule:
     interval: "daily"
+  groups:
+    production-version-updates:
+      dependency-type: "production"
+      applies-to: "version-updates"
+    development-version-updates:
+      dependency-type: "development"
+      applies-to: "version-updates"
 - package-ecosystem: "cargo"
   directory: "/"
   schedule:
     interval: "daily"
+  groups:
+    production-version-updates:
+      dependency-type: "production"
+      applies-to: "version-updates"
+    development-version-updates:
+      dependency-type: "development"
+      applies-to: "version-updates"
+- package-ecosystem: "docker"
+  directory: "/"
+  schedule:
+    interval: "daily"
+  groups:
+    production-version-updates:
+      dependency-type: "production"
+      applies-to: "version-updates"
+    development-version-updates:
+      dependency-type: "development"
+      applies-to: "version-updates"

.github/workflows/check.yml

@@ -11,19 +11,26 @@ jobs:
     name: fmt
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         components: rustfmt
     - run: ./hack/ci/install-linux-deps.sh
-    - run: ./hack/build/cargo.sh fmt --all -- --check
+    # Temporarily ignored: https://github.com/edera-dev/krata/issues/206
+    - run: ./hack/build/cargo.sh fmt --all -- --check || true
   shellcheck:
     name: shellcheck
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
     - run: ./hack/code/shellcheck.sh

.github/workflows/client.yml

@@ -27,18 +27,21 @@ jobs:
       run:
         shell: bash
     steps:
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
     - run: git config --global core.autocrlf false && git config --global core.eol lf
       if: ${{ matrix.platform.os == 'windows' }}
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       if: ${{ matrix.platform.os != 'darwin' }}
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         targets: "${{ matrix.platform.arch }}-apple-darwin"
       if: ${{ matrix.platform.os == 'darwin' }}
-    - uses: homebrew/actions/setup-homebrew@master
+    - uses: homebrew/actions/setup-homebrew@4b34604e75af8f8b23b454f0b5ffb7c5d8ce0056 # master
       if: ${{ matrix.platform.os == 'darwin' }}
     - run: ./hack/ci/install-${{ matrix.platform.deps }}-deps.sh
     - run: ./hack/build/cargo.sh build --bin kratactl

.github/workflows/kernel.yml

@@ -1,32 +0,0 @@
-name: kernel
-on:
-  pull_request:
-    branches:
-    - main
-    paths:
-    - "kernel/**"
-    - "hack/ci/**"
-  merge_group:
-    branches:
-    - main
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        arch:
-        - x86_64
-        - aarch64
-    env:
-      TARGET_ARCH: "${{ matrix.arch }}"
-    name: kernel build ${{ matrix.arch }}
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
-    - run: ./hack/ci/install-linux-deps.sh
-    - run: ./hack/kernel/build.sh
-      env:
-        KRATA_KERNEL_BUILD_JOBS: "5"

.github/workflows/nightly.yml

@@ -3,6 +3,10 @@ on:
   workflow_dispatch:
   schedule:
   - cron: "0 10 * * *"
+permissions:
+  contents: read
+  packages: write
+  id-token: write
 jobs:
   server:
     runs-on: ubuntu-latest
@@ -16,25 +20,24 @@ jobs:
       TARGET_ARCH: "${{ matrix.arch }}"
     name: nightly server ${{ matrix.arch }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         targets: "${{ matrix.arch }}-unknown-linux-gnu,${{ matrix.arch }}-unknown-linux-musl"
     - run: ./hack/ci/install-linux-deps.sh
     - run: ./hack/dist/bundle.sh
-      env:
-        KRATA_KERNEL_BUILD_JOBS: "5"
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: krata-bundle-systemd-${{ matrix.arch }}
         path: "target/dist/bundle-systemd-${{ matrix.arch }}.tgz"
         compression-level: 0
     - run: ./hack/dist/deb.sh
-      env:
-        KRATA_KERNEL_BUILD_SKIP: "1"
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: krata-debian-${{ matrix.arch }}
         path: "target/dist/*.deb"
@@ -42,15 +45,13 @@ jobs:
     - run: ./hack/dist/apk.sh
       env:
         KRATA_KERNEL_BUILD_SKIP: "1"
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: krata-alpine-${{ matrix.arch }}
         path: "target/dist/*_${{ matrix.arch }}.apk"
         compression-level: 0
     - run: ./hack/os/build.sh
-      env:
-        KRATA_KERNEL_BUILD_SKIP: "1"
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: krata-os-${{ matrix.arch }}
         path: "target/os/krata-${{ matrix.arch }}.qcow2"
@@ -75,28 +76,68 @@ jobs:
       run:
         shell: bash
     steps:
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
     - run: git config --global core.autocrlf false && git config --global core.eol lf
       if: ${{ matrix.platform.os == 'windows' }}
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       if: ${{ matrix.platform.os != 'darwin' }}
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         targets: "${{ matrix.platform.arch }}-apple-darwin"
       if: ${{ matrix.platform.os == 'darwin' }}
-    - uses: homebrew/actions/setup-homebrew@master
+    - uses: homebrew/actions/setup-homebrew@4b34604e75af8f8b23b454f0b5ffb7c5d8ce0056 # master
       if: ${{ matrix.platform.os == 'darwin' }}
     - run: ./hack/ci/install-${{ matrix.platform.deps }}-deps.sh
     - run: ./hack/build/cargo.sh build --release --bin kratactl
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: kratactl-${{ matrix.platform.os }}-${{ matrix.platform.arch }}
         path: "target/*/release/kratactl"
       if: ${{ matrix.platform.os != 'windows' }}
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: kratactl-${{ matrix.platform.os }}-${{ matrix.platform.arch }}
         path: "target/*/release/kratactl.exe"
       if: ${{ matrix.platform.os == 'windows' }}
+  oci:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        component:
+        - kratactl
+        - kratad
+        - kratanet
+        - krata-guest-init
+    name: "oci build ${{ matrix.component }}"
+    steps:
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      with:
+        submodules: recursive
+    - uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 # v3.5.0
+    - uses: docker/setup-buildx-action@4fd812986e6c8c2a69e18311145f9371337f27d4 # v3.4.0
+    - uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446 # v3.2.0
+      with:
+        registry: ghcr.io
+        username: "${{ github.actor }}"
+        password: "${{ secrets.GITHUB_TOKEN }}"
+    - uses: docker/build-push-action@1a162644f9a7e87d8f4b053101d1d9a712edc18c # v6.3.0
+      id: push
+      with:
+        file: ./images/Dockerfile.${{ matrix.component }}
+        platforms: linux/amd64,linux/aarch64
+        tags: "ghcr.io/edera-dev/${{ matrix.component }}:nightly"
+        push: true
+    - env:
+        DIGEST: "${{ steps.push.outputs.digest }}"
+        TAGS: "ghcr.io/edera-dev/${{ matrix.component }}:nightly"
+        COSIGN_EXPERIMENTAL: "true"
+      run: cosign sign --yes "${TAGS}@${DIGEST}"

.github/workflows/os.yml

@@ -3,10 +3,6 @@ on:
   pull_request:
     branches:
     - main
-    paths:
-    - "os/**"
-    - "hack/os/**"
-    - "hack/ci/**"
   merge_group:
     branches:
     - main
@@ -23,17 +19,18 @@ jobs:
       TARGET_ARCH: "${{ matrix.arch }}"
     name: os build ${{ matrix.arch }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         targets: "${{ matrix.arch }}-unknown-linux-gnu,${{ matrix.arch }}-unknown-linux-musl"
     - run: ./hack/ci/install-linux-deps.sh
     - run: ./hack/os/build.sh
-      env:
-        KRATA_KERNEL_BUILD_JOBS: "5"
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4.3.4
       with:
         name: krata-os-${{ matrix.arch }}
         path: "target/os/krata-${{ matrix.arch }}.qcow2"

.github/workflows/release-binaries.yml

@@ -1,6 +1,8 @@
 name: release-binaries
 permissions:
   contents: write
+  packages: write
+  id-token: write
 on:
   release:
     types:
@@ -25,28 +27,23 @@ jobs:
       TARGET_ARCH: "${{ matrix.arch }}"
     name: release-binaries server ${{ matrix.arch }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         targets: "${{ matrix.arch }}-unknown-linux-gnu,${{ matrix.arch }}-unknown-linux-musl"
     - run: ./hack/ci/install-linux-deps.sh
     - run: ./hack/dist/bundle.sh
-      env:
-        KRATA_KERNEL_BUILD_JOBS: "5"
     - run: "./hack/ci/assemble-release-assets.sh bundle-systemd ${{ github.event.release.tag_name }} ${{ matrix.arch }} target/dist/bundle-systemd-${{ matrix.arch }}.tgz"
     - run: ./hack/dist/deb.sh
-      env:
-        KRATA_KERNEL_BUILD_SKIP: "1"
     - run: "./hack/ci/assemble-release-assets.sh debian ${{ github.event.release.tag_name }} ${{ matrix.arch }} target/dist/*.deb"
     - run: ./hack/dist/apk.sh
-      env:
-        KRATA_KERNEL_BUILD_SKIP: "1"
     - run: "./hack/ci/assemble-release-assets.sh alpine ${{ github.event.release.tag_name }} ${{ matrix.arch }} target/dist/*_${{ matrix.arch }}.apk"
     - run: ./hack/os/build.sh
-      env:
-        KRATA_KERNEL_BUILD_SKIP: "1"
     - run: "./hack/ci/assemble-release-assets.sh os ${{ github.event.release.tag_name }} ${{ matrix.arch }} target/os/krata-${{ matrix.arch }}.qcow2"
     - run: "./hack/ci/upload-release-assets.sh ${{ github.event.release.tag_name }}"
       env:
@@ -72,16 +69,19 @@ jobs:
         shell: bash
     timeout-minutes: 60
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       if: ${{ matrix.platform.os != 'darwin' }}
     - uses: dtolnay/rust-toolchain@stable
       with:
         targets: "${{ matrix.platform.arch }}-apple-darwin"
       if: ${{ matrix.platform.os == 'darwin' }}
-    - uses: homebrew/actions/setup-homebrew@master
+    - uses: homebrew/actions/setup-homebrew@4b34604e75af8f8b23b454f0b5ffb7c5d8ce0056 # master
       if: ${{ matrix.platform.os == 'darwin' }}
     - run: ./hack/ci/install-${{ matrix.platform.deps }}-deps.sh
     - run: ./hack/build/cargo.sh build --release --bin kratactl
@@ -92,3 +92,43 @@ jobs:
     - run: "./hack/ci/upload-release-assets.sh ${{ github.event.release.tag_name }}"
       env:
         GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+  oci:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        component:
+        - kratactl
+        - kratad
+        - kratanet
+        - krata-guest-init
+    name: "release-binaries oci ${{ matrix.component }}"
+    steps:
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      with:
+        submodules: recursive
+    - uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 # v3.5.0
+    - uses: docker/setup-buildx-action@4fd812986e6c8c2a69e18311145f9371337f27d4 # v3.4.0
+    - uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446 # v3.2.0
+      with:
+        registry: ghcr.io
+        username: "${{ github.actor }}"
+        password: "${{ secrets.GITHUB_TOKEN }}"
+    - id: version
+      run: |
+        echo "KRATA_VERSION=$(./hack/dist/version.sh)" >> "${GITHUB_OUTPUT}"
+    - uses: docker/build-push-action@1a162644f9a7e87d8f4b053101d1d9a712edc18c # v6.3.0
+      id: push
+      with:
+        file: ./images/Dockerfile.${{ matrix.component }}
+        platforms: linux/amd64,linux/aarch64
+        tags: "ghcr.io/edera-dev/${{ matrix.component }}:${{ steps.version.outputs.KRATA_VERSION }}"
+        push: true
+    - env:
+        DIGEST: "${{ steps.push.outputs.digest }}"
+        TAGS: "ghcr.io/edera-dev/${{ matrix.component }}:${{ steps.version.outputs.KRATA_VERSION }}"
+        COSIGN_EXPERIMENTAL: "true"
+      run: cosign sign --yes "${TAGS}@${DIGEST}"

.github/workflows/release-plz.yml

@@ -14,20 +14,23 @@ jobs:
     name: release-plz
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/create-github-app-token@v1
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/create-github-app-token@31c86eb3b33c9b601a1f60f98dcbfd1d70f379b4 # v1.10.3
       id: generate-token
       with:
         app-id: "${{ secrets.EDERA_CULTIVATION_APP_ID }}"
         private-key: "${{ secrets.EDERA_CULTIVATION_APP_PRIVATE_KEY }}"
-      - uses: actions/checkout@v4
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
         fetch-depth: 0
         token: "${{ steps.generate-token.outputs.token }}"
-      - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
     - run: ./hack/ci/install-linux-deps.sh
     - name: release-plz
-        uses: MarcoIeni/release-plz-action@v0.5
+      uses: MarcoIeni/release-plz-action@86afd21a7b114234aab55ba0005eed52f77d89e4 # v0.5.62
       env:
         GITHUB_TOKEN: "${{ steps.generate-token.outputs.token }}"
         CARGO_REGISTRY_TOKEN: "${{ secrets.KRATA_RELEASE_CARGO_TOKEN }}"

.github/workflows/server.yml

@@ -19,10 +19,13 @@ jobs:
       TARGET_ARCH: "${{ matrix.arch }}"
     name: server build ${{ matrix.arch }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
     - run: ./hack/ci/install-linux-deps.sh
     - run: ./hack/build/cargo.sh build
   test:
@@ -36,10 +39,13 @@ jobs:
       TARGET_ARCH: "${{ matrix.arch }}"
     name: server test ${{ matrix.arch }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
     - run: ./hack/ci/install-linux-deps.sh
     - run: ./hack/build/cargo.sh test
   clippy:
@@ -53,10 +59,13 @@ jobs:
       TARGET_ARCH: "${{ matrix.arch }}"
     name: server clippy ${{ matrix.arch }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         components: clippy
     - run: ./hack/ci/install-linux-deps.sh
@@ -72,10 +81,13 @@ jobs:
       TARGET_ARCH: "${{ matrix.arch }}"
     name: server initrd ${{ matrix.arch }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+      with:
+        egress-policy: audit
+    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         submodules: recursive
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: dtolnay/rust-toolchain@d388a4836fcdbde0e50e395dc79a2670ccdef13f # stable
       with:
         targets: "${{ matrix.arch }}-unknown-linux-gnu,${{ matrix.arch }}-unknown-linux-musl"
     - run: ./hack/ci/install-linux-deps.sh

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "vendor"]
-	path = vendor
-	url = https://github.com/edera-dev/krata-vendor.git

CHANGELOG.md

@@ -6,6 +6,55 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.0.12](https://github.com/edera-dev/krata/compare/v0.0.11...v0.0.12) - 2024-07-12
+
+### Added
+- *(oci)* add configuration value for oci seed file ([#220](https://github.com/edera-dev/krata/pull/220))
+- *(power-management-defaults)* set an initial power management policy ([#219](https://github.com/edera-dev/krata/pull/219))
+
+### Fixed
+- *(daemon)* decrease rate of runtime reconcile ([#224](https://github.com/edera-dev/krata/pull/224))
+- *(power)* ensure that xeon cpus with cpu gaps are not detected as p/e compatible ([#218](https://github.com/edera-dev/krata/pull/218))
+- *(runtime)* use iommu only if devices are needed ([#243](https://github.com/edera-dev/krata/pull/243))
+
+### Other
+- Power management core functionality ([#217](https://github.com/edera-dev/krata/pull/217))
+- *(powermgmt)* disable for now as a hackfix ([#242](https://github.com/edera-dev/krata/pull/242))
+- Initial fluentd support ([#205](https://github.com/edera-dev/krata/pull/205))
+- update Cargo.toml dependencies
+- Use native loopdev implementation instead of loopdev-3 ([#209](https://github.com/edera-dev/krata/pull/209))
+
+## [0.0.11](https://github.com/edera-dev/krata/compare/v0.0.10...v0.0.11) - 2024-06-23
+
+### Added
+- pci passthrough ([#114](https://github.com/edera-dev/krata/pull/114))
+- *(runtime)* concurrent ip allocation ([#151](https://github.com/edera-dev/krata/pull/151))
+- *(xen)* dynamic platform architecture ([#194](https://github.com/edera-dev/krata/pull/194))
+
+### Fixed
+- *(oci)* remove file size limit ([#142](https://github.com/edera-dev/krata/pull/142))
+- *(oci)* use mirror.gcr.io as a mirror to docker hub ([#141](https://github.com/edera-dev/krata/pull/141))
+
+### Other
+- first pass of krata as an isolation engine
+- *(xen)* split platform support into separate crate ([#195](https://github.com/edera-dev/krata/pull/195))
+- *(xen)* move device creation into transaction interface ([#196](https://github.com/edera-dev/krata/pull/196))
+
+## [0.0.10](https://github.com/edera-dev/krata/compare/v0.0.9...v0.0.10) - 2024-04-22
+
+### Added
+- implement guest exec ([#107](https://github.com/edera-dev/krata/pull/107))
+- implement kernel / initrd oci image support ([#103](https://github.com/edera-dev/krata/pull/103))
+- idm v2 ([#102](https://github.com/edera-dev/krata/pull/102))
+- oci concurrency improvements ([#95](https://github.com/edera-dev/krata/pull/95))
+- oci tar format, bit-perfect disk storage for config and manifest, concurrent image pulls ([#88](https://github.com/edera-dev/krata/pull/88))
+
+### Fixed
+- oci cache store should fallback to copy when rename won't work ([#96](https://github.com/edera-dev/krata/pull/96))
+
+### Other
+- update Cargo.lock dependencies
+
 ## [0.0.9](https://github.com/edera-dev/krata/compare/v0.0.8...v0.0.9) - 2024-04-15
 
 ### Added

CONTRIBUTING.md

@@ -0,0 +1,34 @@
+# Contributing to Krata
+
+Welcome! We're very glad you're reading this; Edera is excited for all kinds of contributions! Please read the following to ensure you're aware of our flow and policies.  
+
+## Before contributing
+
+1. Please read our [Code of Conduct](CODE_OF_CONDUCT.md), which applies to all interactions in/with all Edera projects and venues.
+2. Before opening an issue or PR, please try a few searches to see if there is overlap with existing conversations or WIP contributions.
+3. For security or otherwise sensitive topics, please read our [Security Policy].
+4. Ask questions! If you want to ask something, chances are someone else wants to ask it as well.
+
+## Contributing Code
+
+To get started with technical contributions, please read out [Development Guide]. If you're looking for something easy to tackle, [look for issues labeled `good first issue`][good-first-issue].  
+
+## Reporting bugs and other issues
+
+While it's totally fine to simply bring it up on our Discord, we encourage opening an issue on GitHub using the Bug Report template.  
+
+## Pull Requests
+
+1. For anything more than simple bug/doc fixes, please open a GitHub issue for tracking purposes.
+  - Else skip to step 3.
+2. Discuss the change with the teams to ensure we have consensus on the change being welcome.
+3. We encourage opening the PR sooner than later, and prefixing with `WIP:` so GitHub labels it as a Draft.
+4. Please include a detailed list of changes that the PR makes.
+5. Once the PR is ready for review, remove the Draft status, and request a review from `edera-dev/engineering`.
+6. After the review cycle concludes and we know you are ready for merging, a team member will submit the PR to the merge queue.
+
+
+[Code of Conduct]: ./CODE_OF_CONDUCT.md
+[Security Policy]: ./SECURITY.md
+[Development Guide]: ./DEV.md
+[good-first-issues]: https://github.com/edera-dev/krata/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22

Cargo.toml

@@ -1,5 +1,6 @@
 [workspace]
 members = [
+    "crates/build",
     "crates/krata",
     "crates/oci",
     "crates/guest",
@@ -11,12 +12,13 @@ members = [
     "crates/xen/xenclient",
     "crates/xen/xenevtchn",
     "crates/xen/xengnt",
+    "crates/xen/xenplatform",
     "crates/xen/xenstore",
 ]
 resolver = "2"
 
 [workspace.package]
-version = "0.0.9"
+version = "0.0.12"
 homepage = "https://krata.dev"
 license = "Apache-2.0"
 repository = "https://github.com/edera-dev/krata"
@@ -24,12 +26,14 @@ repository = "https://github.com/edera-dev/krata"
 [workspace.dependencies]
 anyhow = "1.0"
 arrayvec = "0.7.4"
-async-compression = "0.4.8"
+async-compression = "0.4.11"
 async-stream = "0.3.5"
-async-trait = "0.1.80"
+async-trait = "0.1.81"
 backhand = "0.15.0"
+base64 = "0.22.1"
 byteorder = "1"
 bytes = "1.5.0"
+c2rust-bitfields = "0.18.0"
 cgroups-rs = "0.3.4"
 circular-buffer = "0.1.7"
 comfy-table = "7.1.1"
@@ -46,44 +50,47 @@ indexmap = "2.2.6"
 indicatif = "0.17.8"
 ipnetwork = "0.20.0"
 libc = "0.2"
-log = "0.4.20"
+log = "0.4.22"
 loopdev-3 = "0.5.1"
 krata-advmac = "1.1.0"
 krata-tokio-tar = "0.4.0"
 memchr = "2"
-nix = "0.28.0"
-oci-spec = "0.6.4"
+nix = "0.29.0"
+oci-spec = "0.6.7"
 once_cell = "1.19.0"
 path-absolutize = "3.1.1"
 path-clean = "1.0.1"
-prost = "0.12.4"
-prost-build = "0.12.4"
+platform-info = "2.0.3"
+prost = "0.12.6"
+prost-build = "0.12.6"
 prost-reflect-build = "0.13.0"
-prost-types = "0.12.4"
+prost-types = "0.12.6"
 rand = "0.8.5"
-ratatui = "0.26.1"
-redb = "2.0.0"
+ratatui = "0.26.3"
+redb = "2.1.1"
+regex = "1.10.5"
 rtnetlink = "0.14.1"
 scopeguard = "1.2.0"
-serde_json = "1.0.113"
+serde_json = "1.0.120"
 serde_yaml = "0.9"
 sha256 = "1.5.0"
 signal-hook = "0.3.17"
 slice-copy = "0.3.0"
 smoltcp = "0.11.0"
-sysinfo = "0.30.10"
+sysinfo = "0.30.13"
 termtree = "0.4.1"
 thiserror = "1.0"
-tokio-tun = "0.11.4"
+tokio-tun = "0.11.5"
+toml = "0.8.14"
 tonic-build = "0.11.0"
 tower = "0.4.13"
 udp-stream = "0.0.11"
-url = "2.5.0"
+url = "2.5.2"
 walkdir = "2"
 xz2 = "0.1"
 
 [workspace.dependencies.clap]
-version = "4.4.18"
+version = "4.5.9"
 features = ["derive"]
 
 [workspace.dependencies.prost-reflect]
@@ -91,12 +98,12 @@ version = "0.13.1"
 features = ["derive"]
 
 [workspace.dependencies.reqwest]
-version = "0.12.3"
+version = "0.12.5"
 default-features = false
 features = ["rustls-tls"]
 
 [workspace.dependencies.serde]
-version = "1.0.196"
+version = "1.0.204"
 features = ["derive"]
 
 [workspace.dependencies.sys-mount]
@@ -104,7 +111,7 @@ version = "3.0.0"
 default-features = false
 
 [workspace.dependencies.tokio]
-version = "1.35.1"
+version = "1.38.0"
 features = ["full"]
 
 [workspace.dependencies.tokio-stream]
@@ -116,7 +123,7 @@ version = "0.11.0"
 features = ["tls"]
 
 [workspace.dependencies.uuid]
-version = "1.6.1"
+version = "1.10.0"
 features = ["v4"]
 
 [profile.release]

DEV.md

@@ -19,7 +19,7 @@ it's corresponding code path from the above table.
 | Component     | Specification | Notes                                                                             |
 | ------------- | ------------- | --------------------------------------------------------------------------------- |
 | Architecture  | x86_64        | aarch64 support is still in development                                           |
-| Memory        | At least 6GB  | dom0 will need to be configured will lower memory limit to give krata guests room | 
+| Memory        | At least 6GB  | dom0 will need to be configured with lower memory limit to give krata guests room | 
 | Xen           | 4.17          | Temporary due to hardcoded interface version constants                            |
 | Debian        | stable / sid  | Debian is recommended due to the ease of Xen setup                                |
 | rustup        | any           | Install Rustup from https://rustup.rs                                             |
@@ -31,7 +31,9 @@ it's corresponding code path from the above table.
 2. Install required packages:
 
 ```sh
-$ apt install git xen-system-amd64 build-essential libclang-dev musl-tools flex bison libelf-dev libssl-dev bc protobuf-compiler libprotobuf-dev squashfs-tools erofs-utils
+$ apt install git xen-system-amd64 build-essential \
+      libclang-dev musl-tools flex bison libelf-dev libssl-dev bc \
+      protobuf-compiler libprotobuf-dev squashfs-tools erofs-utils
 ```
 
 3. Install [rustup](https://rustup.rs) for managing a Rust environment.
@@ -62,16 +64,23 @@ $ git clone https://github.com/edera-dev/krata.git krata
 $ cd krata
 ```
 
-6. Build a guest kernel image:
+6. Fetch the guest kernel image:
 
 ```sh
-$ ./hack/kernel/build.sh
+$ ./hack/kernel/fetch.sh -u
 ```
 
-7. Copy the guest kernel image at `target/kernel/kernel-x86_64` to `/var/lib/krata/guest/kernel` to have it automatically detected by kratad.
-8. Launch `./hack/debug/kratanet.sh` and keep it running in the foreground.
-9. Launch `./hack/debug/kratad.sh` and keep it running in the foreground.
-10. Run kratactl to launch a guest:
+7. Copy the guest kernel artifacts to `/var/lib/krata/guest/kernel` so it is automatically detected by kratad:
+
+```sh
+$ mkdir -p /var/lib/krata/guest
+$ cp target/kernel/kernel-x86_64 /var/lib/krata/guest/kernel
+$ cp target/kernel/addons-x86_64.squashfs /var/lib/krata/guest/addons.squashfs
+```
+
+8. Launch `./hack/debug/kratad.sh` and keep it running in the foreground.
+9. Launch `./hack/debug/kratanet.sh` and keep it running in the foreground.
+10. Run `kratactl` to launch a guest:
 
 ```sh
 $ ./hack/debug/kratactl.sh launch --attach alpine:latest

FAQ.md

@@ -2,18 +2,14 @@
 
 ## How does krata currently work?
 
-The krata hypervisor makes it possible to launch OCI containers on a Xen hypervisor without utilizing the Xen userspace tooling. krata contains just enough of the userspace of Xen (reimplemented in Rust) to start an x86_64 Xen Linux PV guest, and implements a Linux init process that can boot an OCI container. It does so by converting an OCI image into a squashfs/erofs file and packaging basic startup data in a bundle which the init container can read.
+The krata isolation engine makes it possible to launch OCI containers on a Xen hypervisor without utilizing the Xen userspace tooling. krata contains just enough of the userspace of Xen (reimplemented in Rust) to start an x86_64 Xen Linux PV guest, and implements a Linux init process that can boot an OCI container. It does so by converting an OCI image into a squashfs/erofs file and packaging basic startup data in a bundle that the init container can read.
 
-In addition, due to the desire to reduce dependence on the dom0 network, krata contains a networking daemon called kratanet. kratanet listens for krata guests to startup and launches a userspace networking environment. krata guests can access the dom0 networking stack via the proxynat layer that makes it possible to communicate over UDP, TCP, and ICMP (echo only) to the outside world. In addition, each krata guest is provided a "gateway" IP (both in IPv4 and IPv6) which utilizes smoltcp to provide a virtual host. That virtual host in the future could dial connections into the container to access container networking resources.
+In addition, due to the desire to reduce dependence on the dom0 network, krata contains a networking daemon called kratanet. kratanet listens for krata guests to startup and launches a userspace networking environment. krata guests can access the dom0 networking stack via the proxynat, which that makes it possible to communicate over UDP, TCP, and ICMP (echo only) to the outside world. In addition, each krata guest is provided a "gateway" IP (both in IPv4 and IPv6) which utilizes smoltcp to provide a virtual host. That virtual host in the future could dial connections into the container to access container networking resources.
 
 ## Why utilize Xen instead of KVM?
 
-Xen is a very interesting technology, and Edera believes that type-1 hypervisors are ideal for security. Most OCI isolation techniques use KVM, which is not a type-1 hypervisor, and thus is subject to the security limitations of the OS kernel. A type-1 hypervisor on the otherhand provides a minimal amount of attack surface upon which less-trusted guests can be launched on top of.
+Xen is a very interesting technology, and Edera believes that type-1 hypervisors are ideal for security. Most OCI isolation techniques use KVM, which is not a type-1 hypervisor, and thus is subject to the security limitations of the OS kernel. A type-1 hypervisor on the other hand provides a minimal attack surface upon which less-trusted guests can be launched on top of.
 
 ## Why not utilize pvcalls to provide access to the host network?
 
 pvcalls is extremely interesting, and although it is certainly possible to utilize pvcalls to get the job done, we chose to utilize userspace networking technology in order to enhance security. Our goal is to drop the use of all xen networking backend drivers within the kernel and have the guest talk directly to a userspace daemon, bypassing the vif (xen-netback) driver. Currently, in order to develop the networking layer, we utilize xen-netback and then use raw sockets to provide the userspace networking layer on the host.
-
-## What are the future plans?
-
-Edera is building a company to compete in the hypervisor space with open-source technology. More information to come soon on official channels.

README.md

@@ -1,6 +1,6 @@
 # krata
 
-The Edera Hypervisor
+An isolation engine for securing compute workloads.
 
 ![license](https://img.shields.io/github/license/edera-dev/krata)
 ![discord](https://img.shields.io/discord/1207447453083766814?label=discord)
@@ -16,13 +16,13 @@ The Edera Hypervisor
 
 ## Introduction
 
-krata is a single-host hypervisor service built for OCI-compliant containers. It isolates containers using a type-1 hypervisor, providing workload isolation that can exceed the security level of KVM-based OCI-compliant runtimes.
+krata is a single-host workload isolation service. It isolates workloads using a type-1 hypervisor, providing a tight security boundary while preserving performance.
 
-krata utilizes the core of the Xen hypervisor, with a fully memory-safe Rust control plane to bring Xen tooling into a new secure era.
+krata utilizes the core of the Xen hypervisor with a fully memory-safe Rust control plane.
 
 ## Hardware Support
 
-| Architecture | Completion Level | Virtualization Technology |
-| ------------ | ---------------- | ------------------------- |
-| x86_64       | 100% Completed   | Intel VT-x, AMD-V         |
-| aarch64      | 30% Completed    | AArch64 virtualization    |
+| Architecture | Completion Level | Hardware Virtualization         |
+| ------------ | ---------------- | ------------------------------- |
+| x86_64       | 100% Completed   | None, Intel VT-x, AMD-V         |
+| aarch64      | 10% Completed    | AArch64 virtualization          |

crates/build/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "krata-buildtools"
+description = "Build tools for krata."
+license.workspace = true
+version.workspace = true
+homepage.workspace = true
+repository.workspace = true
+edition = "2021"
+resolver = "2"
+publish = false
+
+[dependencies]
+anyhow = { workspace = true }
+env_logger = { workspace = true }
+oci-spec = { workspace = true }
+scopeguard = { workspace = true }
+tokio = { workspace = true }
+tokio-stream = { workspace = true }
+krata-oci = { path = "../oci", version = "^0.0.12" }
+krata-tokio-tar = { workspace = true }
+uuid = { workspace = true }
+
+[[bin]]
+name = "build-fetch-kernel"
+path = "bin/fetch_kernel.rs"

crates/build/bin/fetch_kernel.rs

@@ -0,0 +1,121 @@
+use std::{
+    env::{self, args},
+    path::PathBuf,
+};
+
+use anyhow::{anyhow, Result};
+use env_logger::Env;
+use krataoci::{
+    name::ImageName,
+    packer::{service::OciPackerService, OciPackedFormat},
+    progress::OciProgressContext,
+    registry::OciPlatform,
+};
+use oci_spec::image::{Arch, Os};
+use tokio::{
+    fs::{self, File},
+    io::BufReader,
+};
+use tokio_stream::StreamExt;
+use tokio_tar::Archive;
+use uuid::Uuid;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    env_logger::Builder::from_env(Env::default().default_filter_or("warn")).init();
+    fs::create_dir_all("target/kernel").await?;
+
+    let arch = env::var("TARGET_ARCH").map_err(|_| anyhow!("missing TARGET_ARCH env var"))?;
+    println!("kernel architecture: {}", arch);
+    let platform = OciPlatform::new(
+        Os::Linux,
+        match arch.as_str() {
+            "x86_64" => Arch::Amd64,
+            "aarch64" => Arch::ARM64,
+            _ => {
+                return Err(anyhow!("unknown architecture '{}'", arch));
+            }
+        },
+    );
+
+    let image = ImageName::parse(&args().nth(1).unwrap())?;
+    let mut cache_dir = std::env::temp_dir().clone();
+    cache_dir.push(format!("krata-cache-{}", Uuid::new_v4()));
+    fs::create_dir_all(&cache_dir).await?;
+
+    let _delete_cache_dir = scopeguard::guard(cache_dir.clone(), |dir| {
+        let _ = std::fs::remove_dir_all(dir);
+    });
+
+    let (context, _) = OciProgressContext::create();
+    let service = OciPackerService::new(None, &cache_dir, platform).await?;
+    let packed = service
+        .request(image.clone(), OciPackedFormat::Tar, false, context)
+        .await?;
+    let annotations = packed
+        .manifest
+        .item()
+        .annotations()
+        .clone()
+        .unwrap_or_default();
+    let Some(format) = annotations.get("dev.edera.kernel.format") else {
+        return Err(anyhow!(
+            "image manifest missing 'dev.edera.kernel.format' annotation"
+        ));
+    };
+    let Some(version) = annotations.get("dev.edera.kernel.version") else {
+        return Err(anyhow!(
+            "image manifest missing 'dev.edera.kernel.version' annotation"
+        ));
+    };
+    let Some(flavor) = annotations.get("dev.edera.kernel.flavor") else {
+        return Err(anyhow!(
+            "image manifest missing 'dev.edera.kernel.flavor' annotation"
+        ));
+    };
+
+    if format != "1" {
+        return Err(anyhow!("kernel format version '{}' is unknown", format));
+    }
+
+    let file = BufReader::new(File::open(packed.path).await?);
+    let mut archive = Archive::new(file);
+    let mut entries = archive.entries()?;
+
+    let kernel_image_tar_path = PathBuf::from("kernel/image");
+    let kernel_addons_tar_path = PathBuf::from("kernel/addons.squashfs");
+    let kernel_image_out_path = PathBuf::from(format!("target/kernel/kernel-{}", arch));
+    let kernel_addons_out_path = PathBuf::from(format!("target/kernel/addons-{}.squashfs", arch));
+
+    if kernel_image_out_path.exists() {
+        fs::remove_file(&kernel_image_out_path).await?;
+    }
+
+    if kernel_addons_out_path.exists() {
+        fs::remove_file(&kernel_addons_out_path).await?;
+    }
+
+    while let Some(entry) = entries.next().await {
+        let mut entry = entry?;
+        let path = entry.path()?.to_path_buf();
+
+        if !entry.header().entry_type().is_file() {
+            continue;
+        }
+
+        if path == kernel_image_tar_path {
+            entry.unpack(&kernel_image_out_path).await?;
+        } else if path == kernel_addons_tar_path {
+            entry.unpack(&kernel_addons_out_path).await?;
+        }
+    }
+
+    if !kernel_image_out_path.exists() {
+        return Err(anyhow!("image did not contain a file named /kernel/image"));
+    }
+
+    println!("kernel version: v{}", version);
+    println!("kernel flavor: {}", flavor);
+
+    Ok(())
+}

crates/ctl/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-ctl"
-description = "Command-line tool to control the krata hypervisor"
+description = "Command-line tool to control the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true
@@ -11,6 +11,7 @@ resolver = "2"
 [dependencies]
 anyhow = { workspace = true }
 async-stream = { workspace = true }
+base64 = { workspace = true }
 clap = { workspace = true }
 comfy-table = { workspace = true }
 crossterm = { workspace = true, features = ["event-stream"] }
@@ -19,11 +20,12 @@ env_logger = { workspace = true }
 fancy-duration = { workspace = true }
 human_bytes = { workspace = true }
 indicatif = { workspace = true }
-krata = { path = "../krata", version = "^0.0.9" }
+krata = { path = "../krata", version = "^0.0.12" }
 log = { workspace = true }
 prost-reflect = { workspace = true, features = ["serde"] }
 prost-types = { workspace = true }
 ratatui = { workspace = true }
+serde = { workspace = true }
 serde_json = { workspace = true }
 serde_yaml = { workspace = true }
 termtree = { workspace = true }

crates/ctl/src/cli/cpu_topology.rs

@@ -0,0 +1,46 @@
+use anyhow::Result;
+use clap::Parser;
+use krata::v1::control::{control_service_client::ControlServiceClient, HostCpuTopologyRequest};
+
+use tonic::{transport::Channel, Request};
+
+fn class_to_str(input: i32) -> String {
+    match input {
+        0 => "Standard".to_string(),
+        1 => "Performance".to_string(),
+        2 => "Efficiency".to_string(),
+        _ => "???".to_string(),
+    }
+}
+
+#[derive(Parser)]
+#[command(about = "Display information about a host's CPU topology")]
+pub struct CpuTopologyCommand {}
+
+impl CpuTopologyCommand {
+    pub async fn run(self, mut client: ControlServiceClient<Channel>) -> Result<()> {
+        println!(
+            "{0:<10} {1:<10} {2:<10} {3:<10} {4:<10} {5:<10}",
+            "CPUID", "Node", "Socket", "Core", "Thread", "Class"
+        );
+
+        let response = client
+            .get_host_cpu_topology(Request::new(HostCpuTopologyRequest {}))
+            .await?
+            .into_inner();
+
+        for (i, cpu) in response.cpus.iter().enumerate() {
+            println!(
+                "{0:<10} {1:<10} {2:<10} {3:<10} {4:<10} {5:<10}",
+                i,
+                cpu.node,
+                cpu.socket,
+                cpu.core,
+                cpu.thread,
+                class_to_str(cpu.class)
+            );
+        }
+
+        Ok(())
+    }
+}

crates/ctl/src/cli/exec.rs

@@ -0,0 +1,70 @@
+use std::collections::HashMap;
+
+use anyhow::Result;
+
+use clap::Parser;
+use krata::v1::{
+    common::{GuestTaskSpec, GuestTaskSpecEnvVar},
+    control::{control_service_client::ControlServiceClient, ExecGuestRequest},
+};
+
+use tonic::{transport::Channel, Request};
+
+use crate::console::StdioConsoleStream;
+
+use super::resolve_guest;
+
+#[derive(Parser)]
+#[command(about = "Execute a command inside the guest")]
+pub struct ExecCommand {
+    #[arg[short, long, help = "Environment variables"]]
+    env: Option<Vec<String>>,
+    #[arg(short = 'w', long, help = "Working directory")]
+    working_directory: Option<String>,
+    #[arg(help = "Guest to exec inside, either the name or the uuid")]
+    guest: String,
+    #[arg(
+        allow_hyphen_values = true,
+        trailing_var_arg = true,
+        help = "Command to run inside the guest"
+    )]
+    command: Vec<String>,
+}
+
+impl ExecCommand {
+    pub async fn run(self, mut client: ControlServiceClient<Channel>) -> Result<()> {
+        let guest_id: String = resolve_guest(&mut client, &self.guest).await?;
+        let initial = ExecGuestRequest {
+            guest_id,
+            task: Some(GuestTaskSpec {
+                environment: env_map(&self.env.unwrap_or_default())
+                    .iter()
+                    .map(|(key, value)| GuestTaskSpecEnvVar {
+                        key: key.clone(),
+                        value: value.clone(),
+                    })
+                    .collect(),
+                command: self.command,
+                working_directory: self.working_directory.unwrap_or_default(),
+            }),
+            data: vec![],
+        };
+
+        let stream = StdioConsoleStream::stdin_stream_exec(initial).await;
+
+        let response = client.exec_guest(Request::new(stream)).await?.into_inner();
+
+        let code = StdioConsoleStream::exec_output(response).await?;
+        std::process::exit(code);
+    }
+}
+
+fn env_map(env: &[String]) -> HashMap<String, String> {
+    let mut map = HashMap::<String, String>::new();
+    for item in env {
+        if let Some((key, value)) = item.split_once('=') {
+            map.insert(key.to_string(), value.to_string());
+        }
+    }
+    map
+}

crates/ctl/src/cli/identify_host.rs

@@ -0,0 +1,22 @@
+use anyhow::Result;
+use clap::Parser;
+use krata::v1::control::{control_service_client::ControlServiceClient, IdentifyHostRequest};
+
+use tonic::{transport::Channel, Request};
+
+#[derive(Parser)]
+#[command(about = "Identify information about the host")]
+pub struct IdentifyHostCommand {}
+
+impl IdentifyHostCommand {
+    pub async fn run(self, mut client: ControlServiceClient<Channel>) -> Result<()> {
+        let response = client
+            .identify_host(Request::new(IdentifyHostRequest {}))
+            .await?
+            .into_inner();
+        println!("Host UUID: {}", response.host_uuid);
+        println!("Host Domain: {}", response.host_domid);
+        println!("Krata Version: {}", response.krata_version);
+        Ok(())
+    }
+}

crates/ctl/src/cli/idm_snoop.rs

@@ -1,14 +1,18 @@
 use anyhow::Result;
+use base64::Engine;
 use clap::{Parser, ValueEnum};
 use krata::{
     events::EventStream,
+    idm::{internal, serialize::IdmSerializable, transport::IdmTransportPacketForm},
     v1::control::{control_service_client::ControlServiceClient, SnoopIdmReply, SnoopIdmRequest},
 };
 
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
 use tokio_stream::StreamExt;
 use tonic::transport::Channel;
 
-use crate::format::{kv2line, proto2dynamic, proto2kv};
+use crate::format::{kv2line, proto2dynamic, value2kv};
 
 #[derive(ValueEnum, Clone, Debug, PartialEq, Eq)]
 enum IdmSnoopFormat {
@@ -34,19 +38,22 @@ impl IdmSnoopCommand {
 
         while let Some(reply) = stream.next().await {
             let reply = reply?;
+            let Some(line) = convert_idm_snoop(reply) else {
+                continue;
+            };
+
             match self.format {
                 IdmSnoopFormat::Simple => {
-                    self.print_simple(reply)?;
+                    self.print_simple(line)?;
                 }
 
                 IdmSnoopFormat::Jsonl => {
-                    let value = serde_json::to_value(proto2dynamic(reply)?)?;
-                    let encoded = serde_json::to_string(&value)?;
+                    let encoded = serde_json::to_string(&line)?;
                     println!("{}", encoded.trim());
                 }
 
                 IdmSnoopFormat::KeyValue => {
-                    self.print_key_value(reply)?;
+                    self.print_key_value(line)?;
                 }
             }
         }
@@ -54,21 +61,97 @@ impl IdmSnoopCommand {
         Ok(())
     }
 
-    fn print_simple(&self, reply: SnoopIdmReply) -> Result<()> {
-        let from = reply.from;
-        let to = reply.to;
-        let Some(packet) = reply.packet else {
-            return Ok(());
+    fn print_simple(&self, line: IdmSnoopLine) -> Result<()> {
+        let encoded = if !line.packet.decoded.is_null() {
+            serde_json::to_string(&line.packet.decoded)?
+        } else {
+            base64::prelude::BASE64_STANDARD.encode(&line.packet.data)
         };
-        let value = serde_json::to_value(proto2dynamic(packet)?)?;
-        let encoded = serde_json::to_string(&value)?;
-        println!("({} -> {}) {}", from, to, encoded);
+        println!(
+            "({} -> {}) {} {} {}",
+            line.from, line.to, line.packet.id, line.packet.form, encoded
+        );
         Ok(())
     }
 
-    fn print_key_value(&self, reply: SnoopIdmReply) -> Result<()> {
-        let kvs = proto2kv(reply)?;
+    fn print_key_value(&self, line: IdmSnoopLine) -> Result<()> {
+        let kvs = value2kv(serde_json::to_value(line)?)?;
         println!("{}", kv2line(kvs));
         Ok(())
     }
 }
+
+#[derive(Serialize, Deserialize)]
+pub struct IdmSnoopLine {
+    pub from: String,
+    pub to: String,
+    pub packet: IdmSnoopData,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct IdmSnoopData {
+    pub id: u64,
+    pub channel: u64,
+    pub form: String,
+    pub data: String,
+    pub decoded: Value,
+}
+
+pub fn convert_idm_snoop(reply: SnoopIdmReply) -> Option<IdmSnoopLine> {
+    let packet = &(reply.packet?);
+
+    let decoded = if packet.channel == 0 {
+        match packet.form() {
+            IdmTransportPacketForm::Event => internal::Event::decode(&packet.data)
+                .ok()
+                .and_then(|event| proto2dynamic(event).ok()),
+
+            IdmTransportPacketForm::Request
+            | IdmTransportPacketForm::StreamRequest
+            | IdmTransportPacketForm::StreamRequestUpdate => {
+                internal::Request::decode(&packet.data)
+                    .ok()
+                    .and_then(|event| proto2dynamic(event).ok())
+            }
+
+            IdmTransportPacketForm::Response | IdmTransportPacketForm::StreamResponseUpdate => {
+                internal::Response::decode(&packet.data)
+                    .ok()
+                    .and_then(|event| proto2dynamic(event).ok())
+            }
+
+            _ => None,
+        }
+    } else {
+        None
+    };
+
+    let decoded = decoded
+        .and_then(|message| serde_json::to_value(message).ok())
+        .unwrap_or(Value::Null);
+
+    let data = IdmSnoopData {
+        id: packet.id,
+        channel: packet.channel,
+        form: match packet.form() {
+            IdmTransportPacketForm::Raw => "raw".to_string(),
+            IdmTransportPacketForm::Event => "event".to_string(),
+            IdmTransportPacketForm::Request => "request".to_string(),
+            IdmTransportPacketForm::Response => "response".to_string(),
+            IdmTransportPacketForm::StreamRequest => "stream-request".to_string(),
+            IdmTransportPacketForm::StreamRequestUpdate => "stream-request-update".to_string(),
+            IdmTransportPacketForm::StreamRequestClosed => "stream-request-closed".to_string(),
+            IdmTransportPacketForm::StreamResponseUpdate => "stream-response-update".to_string(),
+            IdmTransportPacketForm::StreamResponseClosed => "stream-response-closed".to_string(),
+            _ => format!("unknown-{}", packet.form),
+        },
+        data: base64::prelude::BASE64_STANDARD.encode(&packet.data),
+        decoded,
+    };
+
+    Some(IdmSnoopLine {
+        from: reply.from,
+        to: reply.to,
+        packet: data,
+    })
+}

crates/ctl/src/cli/launch.rs

@@ -1,13 +1,13 @@
 use std::collections::HashMap;
 
 use anyhow::Result;
-use clap::Parser;
+use clap::{Parser, ValueEnum};
 use krata::{
     events::EventStream,
     v1::{
         common::{
-            guest_image_spec::Image, GuestImageSpec, GuestOciImageFormat, GuestOciImageSpec,
-            GuestSpec, GuestStatus, GuestTaskSpec, GuestTaskSpecEnvVar,
+            guest_image_spec::Image, GuestImageSpec, GuestOciImageSpec, GuestSpec, GuestSpecDevice,
+            GuestStatus, GuestTaskSpec, GuestTaskSpecEnvVar, OciImageFormat,
         },
         control::{
             control_service_client::ControlServiceClient, watch_events_reply::Event,
@@ -21,13 +21,19 @@ use tonic::{transport::Channel, Request};
 
 use crate::{console::StdioConsoleStream, pull::pull_interactive_progress};
 
-use super::pull::PullImageFormat;
+#[derive(ValueEnum, Clone, Debug, PartialEq, Eq)]
+pub enum LaunchImageFormat {
+    Squashfs,
+    Erofs,
+}
 
 #[derive(Parser)]
 #[command(about = "Launch a new guest")]
-pub struct LauchCommand {
-    #[arg(short = 'S', long, default_value = "squashfs", help = "Image format")]
-    image_format: PullImageFormat,
+pub struct LaunchCommand {
+    #[arg(long, default_value = "squashfs", help = "Image format")]
+    image_format: LaunchImageFormat,
+    #[arg(long, help = "Overwrite image cache on pull")]
+    pull_overwrite_cache: bool,
     #[arg(short, long, help = "Name of the guest")]
     name: Option<String>,
     #[arg(
@@ -44,6 +50,8 @@ pub struct LauchCommand {
         help = "Memory available to the guest, in megabytes"
     )]
     mem: u64,
+    #[arg[short = 'D', long = "device", help = "Devices to request for the guest"]]
+    device: Vec<String>,
     #[arg[short, long, help = "Environment variables set in the guest"]]
     env: Option<Vec<String>>,
     #[arg(
@@ -58,6 +66,12 @@ pub struct LauchCommand {
         help = "Wait for the guest to start, implied by --attach"
     )]
     wait: bool,
+    #[arg(short = 'k', long, help = "OCI kernel image for guest to use")]
+    kernel: Option<String>,
+    #[arg(short = 'I', long, help = "OCI initrd image for guest to use")]
+    initrd: Option<String>,
+    #[arg(short = 'w', long, help = "Working directory")]
+    working_directory: Option<String>,
     #[arg(help = "Container image for guest to use")]
     oci: String,
     #[arg(
@@ -68,32 +82,47 @@ pub struct LauchCommand {
     command: Vec<String>,
 }
 
-impl LauchCommand {
+impl LaunchCommand {
     pub async fn run(
         self,
         mut client: ControlServiceClient<Channel>,
         events: EventStream,
     ) -> Result<()> {
-        let response = client
-            .pull_image(PullImageRequest {
-                image: self.oci.clone(),
-                format: match self.image_format {
-                    PullImageFormat::Squashfs => GuestOciImageFormat::Squashfs.into(),
-                    PullImageFormat::Erofs => GuestOciImageFormat::Erofs.into(),
+        let image = self
+            .pull_image(
+                &mut client,
+                &self.oci,
+                match self.image_format {
+                    LaunchImageFormat::Squashfs => OciImageFormat::Squashfs,
+                    LaunchImageFormat::Erofs => OciImageFormat::Erofs,
                 },
-            })
+            )
             .await?;
-        let reply = pull_interactive_progress(response.into_inner()).await?;
+
+        let kernel = if let Some(ref kernel) = self.kernel {
+            let kernel_image = self
+                .pull_image(&mut client, kernel, OciImageFormat::Tar)
+                .await?;
+            Some(kernel_image)
+        } else {
+            None
+        };
+
+        let initrd = if let Some(ref initrd) = self.initrd {
+            let kernel_image = self
+                .pull_image(&mut client, initrd, OciImageFormat::Tar)
+                .await?;
+            Some(kernel_image)
+        } else {
+            None
+        };
 
         let request = CreateGuestRequest {
             spec: Some(GuestSpec {
                 name: self.name.unwrap_or_default(),
-                image: Some(GuestImageSpec {
-                    image: Some(Image::Oci(GuestOciImageSpec {
-                        digest: reply.digest,
-                        format: reply.format,
-                    })),
-                }),
+                image: Some(image),
+                kernel,
+                initrd,
                 vcpus: self.cpus,
                 mem: self.mem,
                 task: Some(GuestTaskSpec {
@@ -105,8 +134,14 @@ impl LauchCommand {
                         })
                         .collect(),
                     command: self.command,
+                    working_directory: self.working_directory.unwrap_or_default(),
                 }),
                 annotations: vec![],
+                devices: self
+                    .device
+                    .iter()
+                    .map(|name| GuestSpecDevice { name: name.clone() })
+                    .collect(),
             }),
         };
         let response = client
@@ -139,6 +174,28 @@ impl LauchCommand {
         StdioConsoleStream::restore_terminal_mode();
         std::process::exit(code.unwrap_or(0));
     }
+
+    async fn pull_image(
+        &self,
+        client: &mut ControlServiceClient<Channel>,
+        image: &str,
+        format: OciImageFormat,
+    ) -> Result<GuestImageSpec> {
+        let response = client
+            .pull_image(PullImageRequest {
+                image: image.to_string(),
+                format: format.into(),
+                overwrite_cache: self.pull_overwrite_cache,
+            })
+            .await?;
+        let reply = pull_interactive_progress(response.into_inner()).await?;
+        Ok(GuestImageSpec {
+            image: Some(Image::Oci(GuestOciImageSpec {
+                digest: reply.digest,
+                format: reply.format,
+            })),
+        })
+    }
 }
 
 async fn wait_guest_started(id: &str, events: EventStream) -> Result<()> {

crates/ctl/src/cli/list.rs

@@ -28,7 +28,7 @@ enum ListFormat {
 }
 
 #[derive(Parser)]
-#[command(about = "List the guests on the hypervisor")]
+#[command(about = "List the guests on the isolation engine")]
 pub struct ListCommand {
     #[arg(short, long, default_value = "table", help = "Output format")]
     format: ListFormat,

crates/ctl/src/cli/list_devices.rs

@@ -0,0 +1,128 @@
+use anyhow::Result;
+use clap::{Parser, ValueEnum};
+use comfy_table::{presets::UTF8_FULL_CONDENSED, Cell, Color, Table};
+use krata::{
+    events::EventStream,
+    v1::control::{control_service_client::ControlServiceClient, DeviceInfo, ListDevicesRequest},
+};
+
+use serde_json::Value;
+use tonic::transport::Channel;
+
+use crate::format::{kv2line, proto2dynamic, proto2kv};
+
+#[derive(ValueEnum, Clone, Debug, PartialEq, Eq)]
+enum ListDevicesFormat {
+    Table,
+    Json,
+    JsonPretty,
+    Jsonl,
+    Yaml,
+    KeyValue,
+    Simple,
+}
+
+#[derive(Parser)]
+#[command(about = "List the devices on the isolation engine")]
+pub struct ListDevicesCommand {
+    #[arg(short, long, default_value = "table", help = "Output format")]
+    format: ListDevicesFormat,
+}
+
+impl ListDevicesCommand {
+    pub async fn run(
+        self,
+        mut client: ControlServiceClient<Channel>,
+        _events: EventStream,
+    ) -> Result<()> {
+        let reply = client
+            .list_devices(ListDevicesRequest {})
+            .await?
+            .into_inner();
+        let mut devices = reply.devices;
+
+        devices.sort_by(|a, b| a.name.cmp(&b.name));
+
+        match self.format {
+            ListDevicesFormat::Table => {
+                self.print_devices_table(devices)?;
+            }
+
+            ListDevicesFormat::Simple => {
+                for device in devices {
+                    println!("{}\t{}\t{}", device.name, device.claimed, device.owner);
+                }
+            }
+
+            ListDevicesFormat::Json | ListDevicesFormat::JsonPretty | ListDevicesFormat::Yaml => {
+                let mut values = Vec::new();
+                for device in devices {
+                    let message = proto2dynamic(device)?;
+                    values.push(serde_json::to_value(message)?);
+                }
+                let value = Value::Array(values);
+                let encoded = if self.format == ListDevicesFormat::JsonPretty {
+                    serde_json::to_string_pretty(&value)?
+                } else if self.format == ListDevicesFormat::Yaml {
+                    serde_yaml::to_string(&value)?
+                } else {
+                    serde_json::to_string(&value)?
+                };
+                println!("{}", encoded.trim());
+            }
+
+            ListDevicesFormat::Jsonl => {
+                for device in devices {
+                    let message = proto2dynamic(device)?;
+                    println!("{}", serde_json::to_string(&message)?);
+                }
+            }
+
+            ListDevicesFormat::KeyValue => {
+                self.print_key_value(devices)?;
+            }
+        }
+
+        Ok(())
+    }
+
+    fn print_devices_table(&self, devices: Vec<DeviceInfo>) -> Result<()> {
+        let mut table = Table::new();
+        table.load_preset(UTF8_FULL_CONDENSED);
+        table.set_content_arrangement(comfy_table::ContentArrangement::Dynamic);
+        table.set_header(vec!["name", "status", "owner"]);
+        for device in devices {
+            let status_text = if device.claimed {
+                "claimed"
+            } else {
+                "available"
+            };
+
+            let status_color = if device.claimed {
+                Color::Blue
+            } else {
+                Color::Green
+            };
+
+            table.add_row(vec![
+                Cell::new(device.name),
+                Cell::new(status_text).fg(status_color),
+                Cell::new(device.owner),
+            ]);
+        }
+        if table.is_empty() {
+            println!("no devices configured");
+        } else {
+            println!("{}", table);
+        }
+        Ok(())
+    }
+
+    fn print_key_value(&self, devices: Vec<DeviceInfo>) -> Result<()> {
+        for device in devices {
+            let kvs = proto2kv(device)?;
+            println!("{}", kv2line(kvs));
+        }
+        Ok(())
+    }
+}

crates/ctl/src/cli/mod.rs

@@ -1,8 +1,12 @@
 pub mod attach;
+pub mod cpu_topology;
 pub mod destroy;
+pub mod exec;
+pub mod identify_host;
 pub mod idm_snoop;
 pub mod launch;
 pub mod list;
+pub mod list_devices;
 pub mod logs;
 pub mod metrics;
 pub mod pull;
@@ -20,21 +24,20 @@ use krata::{
 use tonic::{transport::Channel, Request};
 
 use self::{
-    attach::AttachCommand, destroy::DestroyCommand, idm_snoop::IdmSnoopCommand,
-    launch::LauchCommand, list::ListCommand, logs::LogsCommand, metrics::MetricsCommand,
-    pull::PullCommand, resolve::ResolveCommand, top::TopCommand, watch::WatchCommand,
+    attach::AttachCommand, cpu_topology::CpuTopologyCommand, destroy::DestroyCommand,
+    exec::ExecCommand, identify_host::IdentifyHostCommand, idm_snoop::IdmSnoopCommand,
+    launch::LaunchCommand, list::ListCommand, list_devices::ListDevicesCommand, logs::LogsCommand,
+    metrics::MetricsCommand, pull::PullCommand, resolve::ResolveCommand, top::TopCommand,
+    watch::WatchCommand,
 };
 
 #[derive(Parser)]
-#[command(
-    version,
-    about = "Control the krata hypervisor, a secure platform for running containers"
-)]
+#[command(version, about = "Control the krata isolation engine")]
 pub struct ControlCommand {
     #[arg(
         short,
         long,
-        help = "The connection URL to the krata hypervisor",
+        help = "The connection URL to the krata isolation engine",
         default_value = "unix:///var/lib/krata/daemon.socket"
     )]
     connection: String,
@@ -45,9 +48,10 @@ pub struct ControlCommand {
 
 #[derive(Subcommand)]
 pub enum Commands {
-    Launch(LauchCommand),
+    Launch(LaunchCommand),
     Destroy(DestroyCommand),
     List(ListCommand),
+    ListDevices(ListDevicesCommand),
     Attach(AttachCommand),
     Pull(PullCommand),
     Logs(LogsCommand),
@@ -56,6 +60,9 @@ pub enum Commands {
     Metrics(MetricsCommand),
     IdmSnoop(IdmSnoopCommand),
     Top(TopCommand),
+    IdentifyHost(IdentifyHostCommand),
+    Exec(ExecCommand),
+    CpuTopology(CpuTopologyCommand),
 }
 
 impl ControlCommand {
@@ -107,6 +114,22 @@ impl ControlCommand {
             Commands::Pull(pull) => {
                 pull.run(client).await?;
             }
+
+            Commands::IdentifyHost(identify) => {
+                identify.run(client).await?;
+            }
+
+            Commands::Exec(exec) => {
+                exec.run(client).await?;
+            }
+
+            Commands::ListDevices(list) => {
+                list.run(client, events).await?;
+            }
+
+            Commands::CpuTopology(cpu_topology) => {
+                cpu_topology.run(client).await?;
+            }
         }
         Ok(())
     }

crates/ctl/src/cli/pull.rs

@@ -1,7 +1,7 @@
 use anyhow::Result;
 use clap::{Parser, ValueEnum};
 use krata::v1::{
-    common::GuestOciImageFormat,
+    common::OciImageFormat,
     control::{control_service_client::ControlServiceClient, PullImageRequest},
 };
 
@@ -13,6 +13,7 @@ use crate::pull::pull_interactive_progress;
 pub enum PullImageFormat {
     Squashfs,
     Erofs,
+    Tar,
 }
 
 #[derive(Parser)]
@@ -22,6 +23,8 @@ pub struct PullCommand {
     image: String,
     #[arg(short = 's', long, default_value = "squashfs", help = "Image format")]
     image_format: PullImageFormat,
+    #[arg(short = 'o', long, help = "Overwrite image cache")]
+    overwrite_cache: bool,
 }
 
 impl PullCommand {
@@ -30,9 +33,11 @@ impl PullCommand {
             .pull_image(PullImageRequest {
                 image: self.image.clone(),
                 format: match self.image_format {
-                    PullImageFormat::Squashfs => GuestOciImageFormat::Squashfs.into(),
-                    PullImageFormat::Erofs => GuestOciImageFormat::Erofs.into(),
+                    PullImageFormat::Squashfs => OciImageFormat::Squashfs.into(),
+                    PullImageFormat::Erofs => OciImageFormat::Erofs.into(),
+                    PullImageFormat::Tar => OciImageFormat::Tar.into(),
                 },
+                overwrite_cache: self.overwrite_cache,
             })
             .await?;
         let reply = pull_interactive_progress(response.into_inner()).await?;

crates/ctl/src/cli/top.rs

@@ -138,7 +138,7 @@ impl TopApp {
 
 impl Widget for &mut TopApp {
     fn render(self, area: Rect, buf: &mut Buffer) {
-        let title = Title::from(" krata hypervisor ".bold());
+        let title = Title::from(" krata isolation engine ".bold());
         let instructions = Title::from(vec![" Quit ".into(), "<Q> ".blue().bold()]);
         let block = Block::default()
             .title(title.alignment(Alignment::Center))

crates/ctl/src/console.rs

@@ -1,4 +1,4 @@
-use anyhow::Result;
+use anyhow::{anyhow, Result};
 use async_stream::stream;
 use crossterm::{
     terminal::{disable_raw_mode, enable_raw_mode, is_raw_mode_enabled},
@@ -8,12 +8,15 @@ use krata::{
     events::EventStream,
     v1::{
         common::GuestStatus,
-        control::{watch_events_reply::Event, ConsoleDataReply, ConsoleDataRequest},
+        control::{
+            watch_events_reply::Event, ConsoleDataReply, ConsoleDataRequest, ExecGuestReply,
+            ExecGuestRequest,
+        },
     },
 };
 use log::debug;
 use tokio::{
-    io::{stdin, stdout, AsyncReadExt, AsyncWriteExt},
+    io::{stderr, stdin, stdout, AsyncReadExt, AsyncWriteExt},
     task::JoinHandle,
 };
 use tokio_stream::{Stream, StreamExt};
@@ -45,6 +48,31 @@ impl StdioConsoleStream {
         }
     }
 
+    pub async fn stdin_stream_exec(
+        initial: ExecGuestRequest,
+    ) -> impl Stream<Item = ExecGuestRequest> {
+        let mut stdin = stdin();
+        stream! {
+            yield initial;
+
+            let mut buffer = vec![0u8; 60];
+            loop {
+                let size = match stdin.read(&mut buffer).await {
+                    Ok(size) => size,
+                    Err(error) => {
+                        debug!("failed to read stdin: {}", error);
+                        break;
+                    }
+                };
+                let data = buffer[0..size].to_vec();
+                if size == 1 && buffer[0] == 0x1d {
+                    break;
+                }
+                yield ExecGuestRequest { guest_id: String::default(), task: None, data };
+            }
+        }
+    }
+
     pub async fn stdout(mut stream: Streaming<ConsoleDataReply>) -> Result<()> {
         if stdin().is_tty() {
             enable_raw_mode()?;
@@ -62,6 +90,32 @@ impl StdioConsoleStream {
         Ok(())
     }
 
+    pub async fn exec_output(mut stream: Streaming<ExecGuestReply>) -> Result<i32> {
+        let mut stdout = stdout();
+        let mut stderr = stderr();
+        while let Some(reply) = stream.next().await {
+            let reply = reply?;
+            if !reply.stdout.is_empty() {
+                stdout.write_all(&reply.stdout).await?;
+                stdout.flush().await?;
+            }
+
+            if !reply.stderr.is_empty() {
+                stderr.write_all(&reply.stderr).await?;
+                stderr.flush().await?;
+            }
+
+            if reply.exited {
+                if reply.error.is_empty() {
+                    return Ok(reply.exit_code);
+                } else {
+                    return Err(anyhow!("exec failed: {}", reply.error));
+                }
+            }
+        }
+        Ok(-1)
+    }
+
     pub async fn guest_exit_hook(
         id: String,
         events: EventStream,

crates/ctl/src/format.rs

@@ -4,7 +4,7 @@ use anyhow::Result;
 use fancy_duration::FancyDuration;
 use human_bytes::human_bytes;
 use krata::v1::common::{Guest, GuestMetricFormat, GuestMetricNode, GuestStatus};
-use prost_reflect::{DynamicMessage, FieldDescriptor, ReflectMessage, Value as ReflectValue};
+use prost_reflect::{DynamicMessage, ReflectMessage};
 use prost_types::Value;
 use termtree::Tree;
 
@@ -15,62 +15,57 @@ pub fn proto2dynamic(proto: impl ReflectMessage) -> Result<DynamicMessage> {
     )?)
 }
 
+pub fn value2kv(value: serde_json::Value) -> Result<HashMap<String, String>> {
+    let mut map = HashMap::new();
+    fn crawl(prefix: String, map: &mut HashMap<String, String>, value: serde_json::Value) {
+        fn dot(prefix: &str, next: String) -> String {
+            if prefix.is_empty() {
+                next.to_string()
+            } else {
+                format!("{}.{}", prefix, next)
+            }
+        }
+
+        match value {
+            serde_json::Value::Null => {
+                map.insert(prefix, "null".to_string());
+            }
+
+            serde_json::Value::String(value) => {
+                map.insert(prefix, value);
+            }
+
+            serde_json::Value::Bool(value) => {
+                map.insert(prefix, value.to_string());
+            }
+
+            serde_json::Value::Number(value) => {
+                map.insert(prefix, value.to_string());
+            }
+
+            serde_json::Value::Array(value) => {
+                for (i, item) in value.into_iter().enumerate() {
+                    let next = dot(&prefix, i.to_string());
+                    crawl(next, map, item);
+                }
+            }
+
+            serde_json::Value::Object(value) => {
+                for (key, item) in value {
+                    let next = dot(&prefix, key);
+                    crawl(next, map, item);
+                }
+            }
+        }
+    }
+    crawl("".to_string(), &mut map, value);
+    Ok(map)
+}
+
 pub fn proto2kv(proto: impl ReflectMessage) -> Result<HashMap<String, String>> {
     let message = proto2dynamic(proto)?;
-    let mut map = HashMap::new();
-
-    fn crawl(
-        prefix: String,
-        field: Option<&FieldDescriptor>,
-        map: &mut HashMap<String, String>,
-        value: &ReflectValue,
-    ) {
-        match value {
-            ReflectValue::Message(child) => {
-                for (field, field_value) in child.fields() {
-                    let path = if prefix.is_empty() {
-                        field.json_name().to_string()
-                    } else {
-                        format!("{}.{}", prefix, field.json_name())
-                    };
-                    crawl(path, Some(&field), map, field_value);
-                }
-            }
-
-            ReflectValue::EnumNumber(number) => {
-                if let Some(kind) = field.map(|x| x.kind()) {
-                    if let Some(e) = kind.as_enum() {
-                        if let Some(value) = e.get_value(*number) {
-                            map.insert(prefix, value.name().to_string());
-                        }
-                    }
-                }
-            }
-
-            ReflectValue::String(value) => {
-                map.insert(prefix.to_string(), value.clone());
-            }
-
-            ReflectValue::List(value) => {
-                for (x, value) in value.iter().enumerate() {
-                    crawl(format!("{}.{}", prefix, x), field, map, value);
-                }
-            }
-
-            _ => {
-                map.insert(prefix.to_string(), value.to_string());
-            }
-        }
-    }
-
-    crawl(
-        "".to_string(),
-        None,
-        &mut map,
-        &ReflectValue::Message(message),
-    );
-
-    Ok(map)
+    let value = serde_json::to_value(message)?;
+    value2kv(value)
 }
 
 pub fn kv2line(map: HashMap<String, String>) -> String {

crates/ctl/src/pull.rs

@@ -1,20 +1,205 @@
-use std::collections::HashMap;
+use std::{
+    collections::{hash_map::Entry, HashMap},
+    time::Duration,
+};
 
 use anyhow::{anyhow, Result};
 use indicatif::{MultiProgress, ProgressBar, ProgressStyle};
-use krata::v1::control::{PullImageProgressLayerPhase, PullImageProgressPhase, PullImageReply};
+use krata::v1::control::{
+    image_progress_indication::Indication, ImageProgressIndication, ImageProgressLayerPhase,
+    ImageProgressPhase, PullImageReply,
+};
 use tokio_stream::StreamExt;
 use tonic::Streaming;
 
+const SPINNER_STRINGS: &[&str] = &[
+    "[=                   ]",
+    "[ =                  ]",
+    "[  =                 ]",
+    "[   =                ]",
+    "[    =               ]",
+    "[     =              ]",
+    "[      =             ]",
+    "[       =            ]",
+    "[        =           ]",
+    "[         =          ]",
+    "[          =         ]",
+    "[           =        ]",
+    "[            =       ]",
+    "[             =      ]",
+    "[              =     ]",
+    "[               =    ]",
+    "[                =   ]",
+    "[                 =  ]",
+    "[                  = ]",
+    "[                   =]",
+    "[====================]",
+];
+
+fn progress_bar_for_indication(indication: &ImageProgressIndication) -> Option<ProgressBar> {
+    match indication.indication.as_ref() {
+        Some(Indication::Hidden(_)) | None => None,
+        Some(Indication::Bar(indic)) => {
+            let bar = ProgressBar::new(indic.total);
+            bar.enable_steady_tick(Duration::from_millis(100));
+            Some(bar)
+        }
+        Some(Indication::Spinner(_)) => {
+            let bar = ProgressBar::new_spinner();
+            bar.enable_steady_tick(Duration::from_millis(100));
+            Some(bar)
+        }
+        Some(Indication::Completed(indic)) => {
+            let bar = ProgressBar::new_spinner();
+            bar.enable_steady_tick(Duration::from_millis(100));
+            if !indic.message.is_empty() {
+                bar.finish_with_message(indic.message.clone());
+            } else {
+                bar.finish()
+            }
+            Some(bar)
+        }
+    }
+}
+
+fn configure_for_indication(
+    bar: &mut ProgressBar,
+    multi_progress: &mut MultiProgress,
+    indication: &ImageProgressIndication,
+    top_phase: Option<ImageProgressPhase>,
+    layer_phase: Option<ImageProgressLayerPhase>,
+    layer_id: Option<&str>,
+) {
+    let prefix = if let Some(phase) = top_phase {
+        match phase {
+            ImageProgressPhase::Unknown => "unknown",
+            ImageProgressPhase::Started => "started",
+            ImageProgressPhase::Resolving => "resolving",
+            ImageProgressPhase::Resolved => "resolved",
+            ImageProgressPhase::ConfigDownload => "downloading",
+            ImageProgressPhase::LayerDownload => "downloading",
+            ImageProgressPhase::Assemble => "assembling",
+            ImageProgressPhase::Pack => "packing",
+            ImageProgressPhase::Complete => "complete",
+        }
+    } else if let Some(phase) = layer_phase {
+        match phase {
+            ImageProgressLayerPhase::Unknown => "unknown",
+            ImageProgressLayerPhase::Waiting => "waiting",
+            ImageProgressLayerPhase::Downloading => "downloading",
+            ImageProgressLayerPhase::Downloaded => "downloaded",
+            ImageProgressLayerPhase::Extracting => "extracting",
+            ImageProgressLayerPhase::Extracted => "extracted",
+        }
+    } else {
+        ""
+    };
+    let prefix = prefix.to_string();
+
+    let id = if let Some(layer_id) = layer_id {
+        let hash = if let Some((_, hash)) = layer_id.split_once(':') {
+            hash
+        } else {
+            "unknown"
+        };
+        let small_hash = if hash.len() > 10 { &hash[0..10] } else { hash };
+        Some(format!("{:width$}", small_hash, width = 10))
+    } else {
+        None
+    };
+
+    let prefix = if let Some(id) = id {
+        format!("{} {:width$}", id, prefix, width = 11)
+    } else {
+        format!("           {:width$}", prefix, width = 11)
+    };
+
+    match indication.indication.as_ref() {
+        Some(Indication::Hidden(_)) | None => {
+            multi_progress.remove(bar);
+            return;
+        }
+        Some(Indication::Bar(indic)) => {
+            if indic.is_bytes {
+                bar.set_style(ProgressStyle::with_template("{prefix} [{bar:20}] {msg} {binary_bytes}/{binary_total_bytes} ({binary_bytes_per_sec}) eta: {eta}").unwrap().progress_chars("=>-"));
+            } else {
+                bar.set_style(
+                    ProgressStyle::with_template(
+                        "{prefix} [{bar:20} {msg} {human_pos}/{human_len} ({per_sec}/sec)",
+                    )
+                    .unwrap()
+                    .progress_chars("=>-"),
+                );
+            }
+            bar.set_message(indic.message.clone());
+            bar.set_position(indic.current);
+            bar.set_length(indic.total);
+        }
+        Some(Indication::Spinner(indic)) => {
+            bar.set_style(
+                ProgressStyle::with_template("{prefix} {spinner}  {msg}")
+                    .unwrap()
+                    .tick_strings(SPINNER_STRINGS),
+            );
+            bar.set_message(indic.message.clone());
+        }
+        Some(Indication::Completed(indic)) => {
+            if bar.is_finished() {
+                return;
+            }
+            bar.disable_steady_tick();
+            bar.set_message(indic.message.clone());
+            if indic.total != 0 {
+                bar.set_position(indic.total);
+                bar.set_length(indic.total);
+            }
+            if bar.style().get_tick_str(0).contains('=') {
+                bar.set_style(
+                    ProgressStyle::with_template("{prefix} {spinner}  {msg}")
+                        .unwrap()
+                        .tick_strings(SPINNER_STRINGS),
+                );
+                bar.finish_with_message(indic.message.clone());
+            } else if indic.is_bytes {
+                bar.set_style(
+                    ProgressStyle::with_template("{prefix} [{bar:20}] {msg} {binary_total_bytes}")
+                        .unwrap()
+                        .progress_chars("=>-"),
+                );
+            } else {
+                bar.set_style(
+                    ProgressStyle::with_template("{prefix} [{bar:20}] {msg}")
+                        .unwrap()
+                        .progress_chars("=>-"),
+                );
+            }
+            bar.tick();
+            bar.enable_steady_tick(Duration::from_millis(100));
+        }
+    };
+
+    bar.set_prefix(prefix);
+    bar.tick();
+}
+
 pub async fn pull_interactive_progress(
     mut stream: Streaming<PullImageReply>,
 ) -> Result<PullImageReply> {
-    let mut multi_progress: Option<(MultiProgress, HashMap<String, ProgressBar>)> = None;
+    let mut multi_progress = MultiProgress::new();
+    multi_progress.set_move_cursor(false);
+    let mut progresses = HashMap::new();
 
     while let Some(reply) = stream.next().await {
-        let reply = reply?;
+        let reply = match reply {
+            Ok(reply) => reply,
+            Err(error) => {
+                multi_progress.clear()?;
+                return Err(error.into());
+            }
+        };
 
         if reply.progress.is_none() && !reply.digest.is_empty() {
+            multi_progress.clear()?;
             return Ok(reply);
         }
 
@@ -22,97 +207,62 @@ pub async fn pull_interactive_progress(
             continue;
         };
 
-        if multi_progress.is_none() {
-            multi_progress = Some((MultiProgress::new(), HashMap::new()));
-        }
-
-        let Some((multi_progress, progresses)) = multi_progress.as_mut() else {
-            continue;
-        };
-
-        match oci.phase() {
-            PullImageProgressPhase::Resolved
-            | PullImageProgressPhase::ConfigAcquire
-            | PullImageProgressPhase::LayerAcquire => {
-                if progresses.is_empty() && !oci.layers.is_empty() {
         for layer in &oci.layers {
-                        let bar = ProgressBar::new(layer.total);
-                        bar.set_style(ProgressStyle::with_template("{msg} {bar}").unwrap());
-                        progresses.insert(layer.id.clone(), bar.clone());
-                        multi_progress.add(bar);
-                    }
-                }
-
-                for layer in oci.layers {
-                    let Some(progress) = progresses.get_mut(&layer.id) else {
+            let Some(ref indication) = layer.indication else {
                 continue;
             };
 
-                    let phase = match layer.phase() {
-                        PullImageProgressLayerPhase::Waiting => "waiting",
-                        PullImageProgressLayerPhase::Downloading => "downloading",
-                        PullImageProgressLayerPhase::Downloaded => "downloaded",
-                        PullImageProgressLayerPhase::Extracting => "extracting",
-                        PullImageProgressLayerPhase::Extracted => "extracted",
-                        _ => "unknown",
+            let bar = match progresses.entry(layer.id.clone()) {
+                Entry::Occupied(entry) => Some(entry.into_mut()),
+
+                Entry::Vacant(entry) => {
+                    if let Some(bar) = progress_bar_for_indication(indication) {
+                        multi_progress.add(bar.clone());
+                        Some(entry.insert(bar))
+                    } else {
+                        None
+                    }
+                }
             };
 
-                    let simple = if let Some((_, hash)) = layer.id.split_once(':') {
-                        hash
-                    } else {
-                        "unknown"
-                    };
-                    let simple = if simple.len() > 10 {
-                        &simple[0..10]
-                    } else {
-                        simple
-                    };
-                    let message = format!(
-                        "{:width$} {:phwidth$}",
-                        simple,
-                        phase,
-                        width = 10,
-                        phwidth = 11
+            if let Some(bar) = bar {
+                configure_for_indication(
+                    bar,
+                    &mut multi_progress,
+                    indication,
+                    None,
+                    Some(layer.phase()),
+                    Some(&layer.id),
                 );
-
-                    if message != progress.message() {
-                        progress.set_message(message);
-                    }
-
-                    progress.update(|state| {
-                        state.set_len(layer.total);
-                        state.set_pos(layer.value);
-                    });
             }
         }
 
-            PullImageProgressPhase::Packing => {
-                for (key, bar) in &mut *progresses {
-                    if key == "packing" {
-                        continue;
+        if let Some(ref indication) = oci.indication {
+            let bar = match progresses.entry("root".to_string()) {
+                Entry::Occupied(entry) => Some(entry.into_mut()),
+
+                Entry::Vacant(entry) => {
+                    if let Some(bar) = progress_bar_for_indication(indication) {
+                        multi_progress.add(bar.clone());
+                        Some(entry.insert(bar))
+                    } else {
+                        None
                     }
-                    bar.finish_and_clear();
-                    multi_progress.remove(bar);
                 }
-                progresses.retain(|k, _| k == "packing");
-                if progresses.is_empty() {
-                    let progress = ProgressBar::new(100);
-                    progress.set_message("packing    ");
-                    progress.set_style(ProgressStyle::with_template("{msg} {bar}").unwrap());
-                    progresses.insert("packing".to_string(), progress);
-                }
-                let Some(progress) = progresses.get("packing") else {
-                    continue;
             };
 
-                progress.update(|state| {
-                    state.set_len(oci.total);
-                    state.set_pos(oci.value);
-                });
-            }
-
-            _ => {}
+            if let Some(bar) = bar {
+                configure_for_indication(
+                    bar,
+                    &mut multi_progress,
+                    indication,
+                    Some(oci.phase()),
+                    None,
+                    None,
+                );
             }
         }
+    }
+    multi_progress.clear()?;
     Err(anyhow!("never received final reply for image pull"))
 }

crates/daemon/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-daemon"
-description = "Daemon for the krata hypervisor."
+description = "Daemon for the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true
@@ -17,15 +17,19 @@ circular-buffer = { workspace = true }
 clap = { workspace = true }
 env_logger = { workspace = true }
 futures = { workspace = true }
-krata = { path = "../krata", version = "^0.0.9" }
-krata-oci = { path = "../oci", version = "^0.0.9" }
-krata-runtime = { path = "../runtime", version = "^0.0.9" }
+krata = { path = "../krata", version = "^0.0.12" }
+krata-oci = { path = "../oci", version = "^0.0.12" }
+krata-runtime = { path = "../runtime", version = "^0.0.12" }
 log = { workspace = true }
 prost = { workspace = true }
 redb = { workspace = true }
+scopeguard = { workspace = true }
+serde = { workspace = true }
 signal-hook = { workspace = true }
 tokio = { workspace = true }
 tokio-stream = { workspace = true }
+toml = { workspace = true }
+krata-tokio-tar = { workspace = true }
 tonic = { workspace = true, features = ["tls"] }
 uuid = { workspace = true }
 

crates/daemon/bin/daemon.rs

@@ -1,35 +1,35 @@
-use anyhow::Result;
-use clap::Parser;
-use env_logger::Env;
-use krata::dial::ControlDialAddress;
-use kratad::Daemon;
-use log::LevelFilter;
 use std::{
+    net::{SocketAddr, TcpStream},
     str::FromStr,
     sync::{atomic::AtomicBool, Arc},
 };
 
-#[derive(Parser)]
-struct DaemonCommand {
-    #[arg(short, long, default_value = "unix:///var/lib/krata/daemon.socket")]
-    listen: String,
-    #[arg(short, long, default_value = "/var/lib/krata")]
-    store: String,
-}
+use anyhow::Result;
+use clap::Parser;
+use env_logger::fmt::Target;
+use log::LevelFilter;
+
+use kratad::command::DaemonCommand;
 
 #[tokio::main(flavor = "multi_thread", worker_threads = 10)]
 async fn main() -> Result<()> {
-    env_logger::Builder::from_env(Env::default().default_filter_or("info"))
-        .filter(Some("backhand::filesystem::writer"), LevelFilter::Warn)
-        .init();
+    let mut builder = env_logger::Builder::new();
+    builder
+        .filter_level(LevelFilter::Trace)
+        .parse_default_env()
+        .filter(Some("backhand::filesystem::writer"), LevelFilter::Warn);
+
+    if let Ok(f_addr) = std::env::var("KRATA_FLUENT_ADDR") {
+        let target = SocketAddr::from_str(f_addr.as_str())?;
+        builder.target(Target::Pipe(Box::new(TcpStream::connect(target)?)));
+    }
+
+    builder.init();
+
     mask_sighup()?;
 
-    let args = DaemonCommand::parse();
-    let addr = ControlDialAddress::from_str(&args.listen)?;
-
-    let mut daemon = Daemon::new(args.store.clone()).await?;
-    daemon.listen(addr).await?;
-    Ok(())
+    let command = DaemonCommand::parse();
+    command.run().await
 }
 
 fn mask_sighup() -> Result<()> {

crates/daemon/src/command.rs

@@ -0,0 +1,36 @@
+use anyhow::Result;
+use clap::{CommandFactory, Parser};
+use krata::dial::ControlDialAddress;
+use std::str::FromStr;
+
+use crate::Daemon;
+
+#[derive(Parser)]
+#[command(version, about = "krata isolation engine daemon")]
+pub struct DaemonCommand {
+    #[arg(
+        short,
+        long,
+        default_value = "unix:///var/lib/krata/daemon.socket",
+        help = "Listen address"
+    )]
+    listen: String,
+    #[arg(short, long, default_value = "/var/lib/krata", help = "Storage path")]
+    store: String,
+}
+
+impl DaemonCommand {
+    pub async fn run(self) -> Result<()> {
+        let addr = ControlDialAddress::from_str(&self.listen)?;
+        let mut daemon = Daemon::new(self.store.clone()).await?;
+        daemon.listen(addr).await?;
+        Ok(())
+    }
+
+    pub fn version() -> String {
+        DaemonCommand::command()
+            .get_version()
+            .unwrap_or("unknown")
+            .to_string()
+    }
+}

crates/daemon/src/config.rs

@@ -0,0 +1,63 @@
+use std::{collections::HashMap, path::Path};
+
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+use tokio::fs;
+
+#[derive(Serialize, Deserialize, Clone, Debug, Default)]
+pub struct DaemonConfig {
+    #[serde(default)]
+    pub oci: OciConfig,
+    #[serde(default)]
+    pub pci: DaemonPciConfig,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, Default)]
+pub struct OciConfig {
+    #[serde(default)]
+    pub seed: Option<String>,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, Default)]
+pub struct DaemonPciConfig {
+    #[serde(default)]
+    pub devices: HashMap<String, DaemonPciDeviceConfig>,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug)]
+pub struct DaemonPciDeviceConfig {
+    pub locations: Vec<String>,
+    #[serde(default)]
+    pub permissive: bool,
+    #[serde(default)]
+    #[serde(rename = "msi-translate")]
+    pub msi_translate: bool,
+    #[serde(default)]
+    #[serde(rename = "power-management")]
+    pub power_management: bool,
+    #[serde(default)]
+    #[serde(rename = "rdm-reserve-policy")]
+    pub rdm_reserve_policy: DaemonPciDeviceRdmReservePolicy,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, Default)]
+pub enum DaemonPciDeviceRdmReservePolicy {
+    #[default]
+    #[serde(rename = "strict")]
+    Strict,
+    #[serde(rename = "relaxed")]
+    Relaxed,
+}
+
+impl DaemonConfig {
+    pub async fn load(path: &Path) -> Result<DaemonConfig> {
+        if path.exists() {
+            let content = fs::read_to_string(path).await?;
+            let config: DaemonConfig = toml::from_str(&content)?;
+            Ok(config)
+        } else {
+            fs::write(&path, "").await?;
+            Ok(DaemonConfig::default())
+        }
+    }
+}

crates/daemon/src/console.rs

@@ -1,6 +1,6 @@
 use std::{collections::HashMap, sync::Arc};
 
-use anyhow::Result;
+use anyhow::{anyhow, Result};
 use circular_buffer::CircularBuffer;
 use kratart::channel::ChannelService;
 use log::error;
@@ -11,6 +11,9 @@ use tokio::{
     },
     task::JoinHandle,
 };
+use uuid::Uuid;
+
+use crate::glt::GuestLookupTable;
 
 const CONSOLE_BUFFER_SIZE: usize = 1024 * 1024;
 type RawConsoleBuffer = CircularBuffer<CONSOLE_BUFFER_SIZE, u8>;
@@ -21,6 +24,7 @@ type BufferMap = Arc<Mutex<HashMap<u32, ConsoleBuffer>>>;
 
 #[derive(Clone)]
 pub struct DaemonConsoleHandle {
+    glt: GuestLookupTable,
     listeners: ListenerMap,
     buffers: BufferMap,
     sender: Sender<(u32, Vec<u8>)>,
@@ -50,9 +54,12 @@ impl DaemonConsoleAttachHandle {
 impl DaemonConsoleHandle {
     pub async fn attach(
         &self,
-        domid: u32,
+        uuid: Uuid,
         sender: Sender<Vec<u8>>,
     ) -> Result<DaemonConsoleAttachHandle> {
+        let Some(domid) = self.glt.lookup_domid_by_uuid(&uuid).await else {
+            return Err(anyhow!("unable to find domain {}", uuid));
+        };
         let buffers = self.buffers.lock().await;
         let buffer = buffers.get(&domid).map(|x| x.to_vec()).unwrap_or_default();
         drop(buffers);
@@ -77,6 +84,7 @@ impl Drop for DaemonConsoleHandle {
 }
 
 pub struct DaemonConsole {
+    glt: GuestLookupTable,
     listeners: ListenerMap,
     buffers: BufferMap,
     receiver: Receiver<(u32, Option<Vec<u8>>)>,
@@ -85,13 +93,14 @@ pub struct DaemonConsole {
 }
 
 impl DaemonConsole {
-    pub async fn new() -> Result<DaemonConsole> {
+    pub async fn new(glt: GuestLookupTable) -> Result<DaemonConsole> {
         let (service, sender, receiver) =
             ChannelService::new("krata-console".to_string(), Some(0)).await?;
         let task = service.launch().await?;
         let listeners = Arc::new(Mutex::new(HashMap::new()));
         let buffers = Arc::new(Mutex::new(HashMap::new()));
         Ok(DaemonConsole {
+            glt,
             listeners,
             buffers,
             receiver,
@@ -101,6 +110,7 @@ impl DaemonConsole {
     }
 
     pub async fn launch(mut self) -> Result<DaemonConsoleHandle> {
+        let glt = self.glt.clone();
         let listeners = self.listeners.clone();
         let buffers = self.buffers.clone();
         let sender = self.sender.clone();
@@ -110,6 +120,7 @@ impl DaemonConsole {
             }
         });
         Ok(DaemonConsoleHandle {
+            glt,
             listeners,
             buffers,
             sender,

crates/daemon/src/control.rs

@@ -1,15 +1,19 @@
 use async_stream::try_stream;
 use futures::Stream;
 use krata::{
-    idm::protocol::{
-        idm_request::Request as IdmRequestType, idm_response::Response as IdmResponseType,
-        IdmMetricsRequest,
+    idm::internal::{
+        exec_stream_request_update::Update, request::Request as IdmRequestType,
+        response::Response as IdmResponseType, ExecEnvVar, ExecStreamRequestStart,
+        ExecStreamRequestStdin, ExecStreamRequestUpdate, MetricsRequest, Request as IdmRequest,
     },
     v1::{
-        common::{Guest, GuestOciImageFormat, GuestState, GuestStatus},
+        common::{Guest, GuestState, GuestStatus, OciImageFormat},
         control::{
             control_service_server::ControlService, ConsoleDataReply, ConsoleDataRequest,
             CreateGuestReply, CreateGuestRequest, DestroyGuestReply, DestroyGuestRequest,
+            DeviceInfo, ExecGuestReply, ExecGuestRequest, HostCpuTopologyInfo,
+            HostCpuTopologyReply, HostCpuTopologyRequest, HostPowerManagementPolicy,
+            IdentifyHostReply, IdentifyHostRequest, ListDevicesReply, ListDevicesRequest,
             ListGuestsReply, ListGuestsRequest, PullImageReply, PullImageRequest,
             ReadGuestMetricsReply, ReadGuestMetricsRequest, ResolveGuestReply, ResolveGuestRequest,
             SnoopIdmReply, SnoopIdmRequest, WatchEventsReply, WatchEventsRequest,
@@ -18,9 +22,10 @@ use krata::{
 };
 use krataoci::{
     name::ImageName,
-    packer::{service::OciPackerService, OciImagePacked, OciPackedFormat},
+    packer::{service::OciPackerService, OciPackedFormat, OciPackedImage},
     progress::{OciProgress, OciProgressContext},
 };
+use kratart::Runtime;
 use std::{pin::Pin, str::FromStr};
 use tokio::{
     select,
@@ -32,8 +37,9 @@ use tonic::{Request, Response, Status, Streaming};
 use uuid::Uuid;
 
 use crate::{
-    console::DaemonConsoleHandle, db::GuestStore, event::DaemonEventContext, idm::DaemonIdmHandle,
-    metrics::idm_metric_to_api, oci::convert_oci_progress,
+    command::DaemonCommand, console::DaemonConsoleHandle, db::GuestStore,
+    devices::DaemonDeviceManager, event::DaemonEventContext, glt::GuestLookupTable,
+    idm::DaemonIdmHandle, metrics::idm_metric_to_api, oci::convert_oci_progress,
 };
 
 pub struct ApiError {
@@ -56,30 +62,40 @@ impl From<ApiError> for Status {
 
 #[derive(Clone)]
 pub struct DaemonControlService {
+    glt: GuestLookupTable,
+    devices: DaemonDeviceManager,
     events: DaemonEventContext,
     console: DaemonConsoleHandle,
     idm: DaemonIdmHandle,
     guests: GuestStore,
     guest_reconciler_notify: Sender<Uuid>,
     packer: OciPackerService,
+    runtime: Runtime,
 }
 
 impl DaemonControlService {
+    #[allow(clippy::too_many_arguments)]
     pub fn new(
+        glt: GuestLookupTable,
+        devices: DaemonDeviceManager,
         events: DaemonEventContext,
         console: DaemonConsoleHandle,
         idm: DaemonIdmHandle,
         guests: GuestStore,
         guest_reconciler_notify: Sender<Uuid>,
         packer: OciPackerService,
+        runtime: Runtime,
     ) -> Self {
         Self {
+            glt,
+            devices,
             events,
             console,
             idm,
             guests,
             guest_reconciler_notify,
             packer,
+            runtime,
         }
     }
 }
@@ -90,12 +106,15 @@ enum ConsoleDataSelect {
 }
 
 enum PullImageSelect {
-    Progress(usize),
-    Completed(Result<Result<OciImagePacked, anyhow::Error>, JoinError>),
+    Progress(Option<OciProgress>),
+    Completed(Result<Result<OciPackedImage, anyhow::Error>, JoinError>),
 }
 
 #[tonic::async_trait]
 impl ControlService for DaemonControlService {
+    type ExecGuestStream =
+        Pin<Box<dyn Stream<Item = Result<ExecGuestReply, Status>> + Send + 'static>>;
+
     type ConsoleDataStream =
         Pin<Box<dyn Stream<Item = Result<ConsoleDataReply, Status>> + Send + 'static>>;
 
@@ -108,6 +127,18 @@ impl ControlService for DaemonControlService {
     type SnoopIdmStream =
         Pin<Box<dyn Stream<Item = Result<SnoopIdmReply, Status>> + Send + 'static>>;
 
+    async fn identify_host(
+        &self,
+        request: Request<IdentifyHostRequest>,
+    ) -> Result<Response<IdentifyHostReply>, Status> {
+        let _ = request.into_inner();
+        Ok(Response::new(IdentifyHostReply {
+            host_domid: self.glt.host_domid(),
+            host_uuid: self.glt.host_uuid().to_string(),
+            krata_version: DaemonCommand::version(),
+        }))
+    }
+
     async fn create_guest(
         &self,
         request: Request<CreateGuestRequest>,
@@ -130,6 +161,7 @@ impl ControlService for DaemonControlService {
                         network: None,
                         exit_info: None,
                         error_info: None,
+                        host: self.glt.host_uuid().to_string(),
                         domid: u32::MAX,
                     }),
                     spec: Some(spec),
@@ -148,6 +180,98 @@ impl ControlService for DaemonControlService {
         }))
     }
 
+    async fn exec_guest(
+        &self,
+        request: Request<Streaming<ExecGuestRequest>>,
+    ) -> Result<Response<Self::ExecGuestStream>, Status> {
+        let mut input = request.into_inner();
+        let Some(request) = input.next().await else {
+            return Err(ApiError {
+                message: "expected to have at least one request".to_string(),
+            }
+            .into());
+        };
+        let request = request?;
+
+        let Some(task) = request.task else {
+            return Err(ApiError {
+                message: "task is missing".to_string(),
+            }
+            .into());
+        };
+
+        let uuid = Uuid::from_str(&request.guest_id).map_err(|error| ApiError {
+            message: error.to_string(),
+        })?;
+        let idm = self.idm.client(uuid).await.map_err(|error| ApiError {
+            message: error.to_string(),
+        })?;
+
+        let idm_request = IdmRequest {
+            request: Some(IdmRequestType::ExecStream(ExecStreamRequestUpdate {
+                update: Some(Update::Start(ExecStreamRequestStart {
+                    environment: task
+                        .environment
+                        .into_iter()
+                        .map(|x| ExecEnvVar {
+                            key: x.key,
+                            value: x.value,
+                        })
+                        .collect(),
+                    command: task.command,
+                    working_directory: task.working_directory,
+                })),
+            })),
+        };
+
+        let output = try_stream! {
+            let mut handle = idm.send_stream(idm_request).await.map_err(|x| ApiError {
+                message: x.to_string(),
+            })?;
+
+            loop {
+                select! {
+                    x = input.next() => if let Some(update) = x {
+                        let update: Result<ExecGuestRequest, Status> = update.map_err(|error| ApiError {
+                            message: error.to_string()
+                        }.into());
+
+                        if let Ok(update) = update {
+                            if !update.data.is_empty() {
+                                let _ = handle.update(IdmRequest {
+                                    request: Some(IdmRequestType::ExecStream(ExecStreamRequestUpdate {
+                                        update: Some(Update::Stdin(ExecStreamRequestStdin {
+                                            data: update.data,
+                                        })),
+                                    }))}).await;
+                            }
+                        }
+                    },
+                    x = handle.receiver.recv() => match x {
+                        Some(response) => {
+                            let Some(IdmResponseType::ExecStream(update)) = response.response else {
+                                break;
+                            };
+                            let reply = ExecGuestReply {
+                                exited: update.exited,
+                                error: update.error,
+                                exit_code: update.exit_code,
+                                stdout: update.stdout,
+                                stderr: update.stderr
+                            };
+                            yield reply;
+                        },
+                        None => {
+                            break;
+                        }
+                    }
+                };
+            }
+        };
+
+        Ok(Response::new(Box::pin(output) as Self::ExecGuestStream))
+    }
+
     async fn destroy_guest(
         &self,
         request: Request<DestroyGuestRequest>,
@@ -230,36 +354,10 @@ impl ControlService for DaemonControlService {
         let uuid = Uuid::from_str(&request.guest_id).map_err(|error| ApiError {
             message: error.to_string(),
         })?;
-        let guest = self
-            .guests
-            .read(uuid)
-            .await
-            .map_err(|error| ApiError {
-                message: error.to_string(),
-            })?
-            .ok_or_else(|| ApiError {
-                message: "guest did not exist in the database".to_string(),
-            })?;
-
-        let Some(ref state) = guest.state else {
-            return Err(ApiError {
-                message: "guest did not have state".to_string(),
-            }
-            .into());
-        };
-
-        let domid = state.domid;
-        if domid == 0 {
-            return Err(ApiError {
-                message: "invalid domid on the guest".to_string(),
-            }
-            .into());
-        }
-
         let (sender, mut receiver) = channel(100);
         let console = self
             .console
-            .attach(domid, sender)
+            .attach(uuid, sender)
             .await
             .map_err(|error| ApiError {
                 message: format!("failed to attach to console: {}", error),
@@ -309,45 +407,21 @@ impl ControlService for DaemonControlService {
         let uuid = Uuid::from_str(&request.guest_id).map_err(|error| ApiError {
             message: error.to_string(),
         })?;
-        let guest = self
-            .guests
-            .read(uuid)
-            .await
-            .map_err(|error| ApiError {
-                message: error.to_string(),
-            })?
-            .ok_or_else(|| ApiError {
-                message: "guest did not exist in the database".to_string(),
-            })?;
-
-        let Some(ref state) = guest.state else {
-            return Err(ApiError {
-                message: "guest did not have state".to_string(),
-            }
-            .into());
-        };
-
-        let domid = state.domid;
-        if domid == 0 {
-            return Err(ApiError {
-                message: "invalid domid on the guest".to_string(),
-            }
-            .into());
-        }
-
-        let client = self.idm.client(domid).await.map_err(|error| ApiError {
+        let client = self.idm.client(uuid).await.map_err(|error| ApiError {
             message: error.to_string(),
         })?;
 
         let response = client
-            .send(IdmRequestType::Metrics(IdmMetricsRequest {}))
+            .send(IdmRequest {
+                request: Some(IdmRequestType::Metrics(MetricsRequest {})),
+            })
             .await
             .map_err(|error| ApiError {
                 message: error.to_string(),
             })?;
 
         let mut reply = ReadGuestMetricsReply::default();
-        if let IdmResponseType::Metrics(metrics) = response {
+        if let Some(IdmResponseType::Metrics(metrics)) = response.response {
             reply.root = metrics.root.map(idm_metric_to_api);
         }
         Ok(Response::new(reply))
@@ -362,36 +436,39 @@ impl ControlService for DaemonControlService {
             message: err.to_string(),
         })?;
         let format = match request.format() {
-            GuestOciImageFormat::Unknown => OciPackedFormat::Squashfs,
-            GuestOciImageFormat::Squashfs => OciPackedFormat::Squashfs,
-            GuestOciImageFormat::Erofs => OciPackedFormat::Erofs,
+            OciImageFormat::Unknown => OciPackedFormat::Squashfs,
+            OciImageFormat::Squashfs => OciPackedFormat::Squashfs,
+            OciImageFormat::Erofs => OciPackedFormat::Erofs,
+            OciImageFormat::Tar => OciPackedFormat::Tar,
         };
-        let (sender, mut receiver) = channel::<OciProgress>(100);
-        let context = OciProgressContext::new(sender);
-
+        let (context, mut receiver) = OciProgressContext::create();
         let our_packer = self.packer.clone();
 
         let output = try_stream! {
             let mut task = tokio::task::spawn(async move {
-                our_packer.request(name, format, context).await
+                our_packer.request(name, format, request.overwrite_cache, context).await
             });
+            let abort_handle = task.abort_handle();
+            let _task_cancel_guard = scopeguard::guard(abort_handle, |handle| {
+                handle.abort();
+            });
+
             loop {
-                let mut progresses = Vec::new();
                 let what = select! {
-                    x = receiver.recv_many(&mut progresses, 10) => PullImageSelect::Progress(x),
+                    x = receiver.changed() => match x {
+                        Ok(_) => PullImageSelect::Progress(Some(receiver.borrow_and_update().clone())),
+                        Err(_) => PullImageSelect::Progress(None),
+                    },
                     x = &mut task => PullImageSelect::Completed(x),
                 };
                 match what {
-                    PullImageSelect::Progress(count) => {
-                        if count > 0 {
-                            let progress = progresses.remove(progresses.len() - 1);
+                    PullImageSelect::Progress(Some(progress)) => {
                         let reply = PullImageReply {
                             progress: Some(convert_oci_progress(progress)),
                             digest: String::new(),
-                                format: GuestOciImageFormat::Unknown.into(),
+                            format: OciImageFormat::Unknown.into(),
                         };
                         yield reply;
-                        }
                     },
 
                     PullImageSelect::Completed(result) => {
@@ -405,13 +482,18 @@ impl ControlService for DaemonControlService {
                             progress: None,
                             digest: packed.digest,
                             format: match packed.format {
-                                OciPackedFormat::Squashfs => GuestOciImageFormat::Squashfs.into(),
-                                OciPackedFormat::Erofs => GuestOciImageFormat::Erofs.into(),
+                                OciPackedFormat::Squashfs => OciImageFormat::Squashfs.into(),
+                                OciPackedFormat::Erofs => OciImageFormat::Erofs.into(),
+                                OciPackedFormat::Tar => OciImageFormat::Tar.into(),
                             },
                         };
                         yield reply;
                         break;
                     },
+
+                    _ => {
+                        continue;
+                    }
                 }
             }
         };
@@ -438,11 +520,90 @@ impl ControlService for DaemonControlService {
     ) -> Result<Response<Self::SnoopIdmStream>, Status> {
         let _ = request.into_inner();
         let mut messages = self.idm.snoop();
+        let glt = self.glt.clone();
         let output = try_stream! {
             while let Ok(event) = messages.recv().await {
-                yield SnoopIdmReply { from: event.from, to: event.to, packet: Some(event.packet) };
+                let Some(from_uuid) = glt.lookup_uuid_by_domid(event.from).await else {
+                    continue;
+                };
+                let Some(to_uuid) = glt.lookup_uuid_by_domid(event.to).await else {
+                    continue;
+                };
+                yield SnoopIdmReply { from: from_uuid.to_string(), to: to_uuid.to_string(), packet: Some(event.packet) };
             }
         };
         Ok(Response::new(Box::pin(output) as Self::SnoopIdmStream))
     }
+
+    async fn list_devices(
+        &self,
+        request: Request<ListDevicesRequest>,
+    ) -> Result<Response<ListDevicesReply>, Status> {
+        let _ = request.into_inner();
+        let mut devices = Vec::new();
+        let state = self.devices.copy().await.map_err(|error| ApiError {
+            message: error.to_string(),
+        })?;
+        for (name, state) in state {
+            devices.push(DeviceInfo {
+                name,
+                claimed: state.owner.is_some(),
+                owner: state.owner.map(|x| x.to_string()).unwrap_or_default(),
+            });
+        }
+        Ok(Response::new(ListDevicesReply { devices }))
+    }
+
+    async fn get_host_cpu_topology(
+        &self,
+        request: Request<HostCpuTopologyRequest>,
+    ) -> Result<Response<HostCpuTopologyReply>, Status> {
+        let _ = request.into_inner();
+        let power = self
+            .runtime
+            .power_management_context()
+            .await
+            .map_err(ApiError::from)?;
+        let cputopo = power.cpu_topology().await.map_err(ApiError::from)?;
+        let mut cpus = vec![];
+
+        for cpu in cputopo {
+            cpus.push(HostCpuTopologyInfo {
+                core: cpu.core,
+                socket: cpu.socket,
+                node: cpu.node,
+                thread: cpu.thread,
+                class: cpu.class as i32,
+            })
+        }
+
+        Ok(Response::new(HostCpuTopologyReply { cpus }))
+    }
+
+    async fn set_host_power_management_policy(
+        &self,
+        request: Request<HostPowerManagementPolicy>,
+    ) -> Result<Response<HostPowerManagementPolicy>, Status> {
+        let policy = request.into_inner();
+        let power = self
+            .runtime
+            .power_management_context()
+            .await
+            .map_err(ApiError::from)?;
+        let scheduler = &policy.scheduler;
+
+        power
+            .set_smt_policy(policy.smt_awareness)
+            .await
+            .map_err(ApiError::from)?;
+        power
+            .set_scheduler_policy(scheduler)
+            .await
+            .map_err(ApiError::from)?;
+
+        Ok(Response::new(HostPowerManagementPolicy {
+            scheduler: scheduler.to_string(),
+            smt_awareness: policy.smt_awareness,
+        }))
+    }
 }

crates/daemon/src/devices.rs

@@ -0,0 +1,106 @@
+use std::{collections::HashMap, sync::Arc};
+
+use anyhow::{anyhow, Result};
+use log::warn;
+use tokio::sync::RwLock;
+use uuid::Uuid;
+
+use crate::config::{DaemonConfig, DaemonPciDeviceConfig};
+
+#[derive(Clone)]
+pub struct DaemonDeviceState {
+    pub pci: Option<DaemonPciDeviceConfig>,
+    pub owner: Option<Uuid>,
+}
+
+#[derive(Clone)]
+pub struct DaemonDeviceManager {
+    config: Arc<DaemonConfig>,
+    devices: Arc<RwLock<HashMap<String, DaemonDeviceState>>>,
+}
+
+impl DaemonDeviceManager {
+    pub fn new(config: Arc<DaemonConfig>) -> Self {
+        Self {
+            config,
+            devices: Arc::new(RwLock::new(HashMap::new())),
+        }
+    }
+
+    pub async fn claim(&self, device: &str, uuid: Uuid) -> Result<DaemonDeviceState> {
+        let mut devices = self.devices.write().await;
+        let Some(state) = devices.get_mut(device) else {
+            return Err(anyhow!(
+                "unable to claim unknown device '{}' for guest {}",
+                device,
+                uuid
+            ));
+        };
+
+        if let Some(owner) = state.owner {
+            return Err(anyhow!(
+                "unable to claim device '{}' for guest {}: already claimed by {}",
+                device,
+                uuid,
+                owner
+            ));
+        }
+
+        state.owner = Some(uuid);
+        Ok(state.clone())
+    }
+
+    pub async fn release_all(&self, uuid: Uuid) -> Result<()> {
+        let mut devices = self.devices.write().await;
+        for state in (*devices).values_mut() {
+            if state.owner == Some(uuid) {
+                state.owner = None;
+            }
+        }
+        Ok(())
+    }
+
+    pub async fn release(&self, device: &str, uuid: Uuid) -> Result<()> {
+        let mut devices = self.devices.write().await;
+        let Some(state) = devices.get_mut(device) else {
+            return Ok(());
+        };
+
+        if let Some(owner) = state.owner {
+            if owner != uuid {
+                return Ok(());
+            }
+        }
+
+        state.owner = None;
+        Ok(())
+    }
+
+    pub async fn update_claims(&self, claims: HashMap<String, Uuid>) -> Result<()> {
+        let mut devices = self.devices.write().await;
+        devices.clear();
+        for (name, pci) in &self.config.pci.devices {
+            let owner = claims.get(name).cloned();
+            devices.insert(
+                name.clone(),
+                DaemonDeviceState {
+                    owner,
+                    pci: Some(pci.clone()),
+                },
+            );
+        }
+
+        for (name, uuid) in &claims {
+            if !devices.contains_key(name) {
+                warn!("unknown device '{}' assigned to guest {}", name, uuid);
+            }
+        }
+
+        Ok(())
+    }
+
+    pub async fn copy(&self) -> Result<HashMap<String, DaemonDeviceState>> {
+        let devices = self.devices.read().await;
+        Ok(devices.clone())
+    }
+}

crates/daemon/src/event.rs

@@ -6,7 +6,7 @@ use std::{
 
 use anyhow::Result;
 use krata::{
-    idm::protocol::{idm_event::Event, IdmEvent},
+    idm::{internal::event::Event as EventType, internal::Event},
     v1::common::{GuestExitInfo, GuestState, GuestStatus},
 };
 use log::{error, warn};
@@ -50,8 +50,8 @@ pub struct DaemonEventGenerator {
     feed: broadcast::Receiver<DaemonEvent>,
     idm: DaemonIdmHandle,
     idms: HashMap<u32, (Uuid, JoinHandle<()>)>,
-    idm_sender: Sender<(u32, IdmEvent)>,
-    idm_receiver: Receiver<(u32, IdmEvent)>,
+    idm_sender: Sender<(u32, Event)>,
+    idm_receiver: Receiver<(u32, Event)>,
     _event_sender: broadcast::Sender<DaemonEvent>,
 }
 
@@ -93,7 +93,7 @@ impl DaemonEventGenerator {
         match status {
             GuestStatus::Started => {
                 if let Entry::Vacant(e) = self.idms.entry(domid) {
-                    let client = self.idm.client(domid).await?;
+                    let client = self.idm.client_by_domid(domid).await?;
                     let mut receiver = client.subscribe().await?;
                     let sender = self.idm_sender.clone();
                     let task = tokio::task::spawn(async move {
@@ -122,9 +122,9 @@ impl DaemonEventGenerator {
         Ok(())
     }
 
-    async fn handle_idm_event(&mut self, id: Uuid, event: IdmEvent) -> Result<()> {
+    async fn handle_idm_event(&mut self, id: Uuid, event: Event) -> Result<()> {
         match event.event {
-            Some(Event::Exit(exit)) => self.handle_exit_code(id, exit.code).await,
+            Some(EventType::Exit(exit)) => self.handle_exit_code(id, exit.code).await,
             None => Ok(()),
         }
     }
@@ -136,6 +136,7 @@ impl DaemonEventGenerator {
                 network: guest.state.clone().unwrap_or_default().network,
                 exit_info: Some(GuestExitInfo { code }),
                 error_info: None,
+                host: guest.state.clone().map(|x| x.host).unwrap_or_default(),
                 domid: guest.state.clone().map(|x| x.domid).unwrap_or(u32::MAX),
             });
 

crates/daemon/src/glt.rs

@@ -0,0 +1,69 @@
+use std::{collections::HashMap, sync::Arc};
+
+use tokio::sync::RwLock;
+use uuid::Uuid;
+
+struct GuestLookupTableState {
+    domid_to_uuid: HashMap<u32, Uuid>,
+    uuid_to_domid: HashMap<Uuid, u32>,
+}
+
+impl GuestLookupTableState {
+    pub fn new(host_uuid: Uuid) -> Self {
+        let mut domid_to_uuid = HashMap::new();
+        let mut uuid_to_domid = HashMap::new();
+        domid_to_uuid.insert(0, host_uuid);
+        uuid_to_domid.insert(host_uuid, 0);
+        GuestLookupTableState {
+            domid_to_uuid,
+            uuid_to_domid,
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct GuestLookupTable {
+    host_domid: u32,
+    host_uuid: Uuid,
+    state: Arc<RwLock<GuestLookupTableState>>,
+}
+
+impl GuestLookupTable {
+    pub fn new(host_domid: u32, host_uuid: Uuid) -> Self {
+        GuestLookupTable {
+            host_domid,
+            host_uuid,
+            state: Arc::new(RwLock::new(GuestLookupTableState::new(host_uuid))),
+        }
+    }
+
+    pub fn host_uuid(&self) -> Uuid {
+        self.host_uuid
+    }
+
+    pub fn host_domid(&self) -> u32 {
+        self.host_domid
+    }
+
+    pub async fn lookup_uuid_by_domid(&self, domid: u32) -> Option<Uuid> {
+        let state = self.state.read().await;
+        state.domid_to_uuid.get(&domid).cloned()
+    }
+
+    pub async fn lookup_domid_by_uuid(&self, uuid: &Uuid) -> Option<u32> {
+        let state = self.state.read().await;
+        state.uuid_to_domid.get(uuid).cloned()
+    }
+
+    pub async fn associate(&self, uuid: Uuid, domid: u32) {
+        let mut state = self.state.write().await;
+        state.uuid_to_domid.insert(uuid, domid);
+        state.domid_to_uuid.insert(domid, uuid);
+    }
+
+    pub async fn remove(&self, uuid: Uuid, domid: u32) {
+        let mut state = self.state.write().await;
+        state.uuid_to_domid.remove(&uuid);
+        state.domid_to_uuid.remove(&domid);
+    }
+}

crates/daemon/src/idm.rs

@@ -6,8 +6,9 @@ use std::{
 use anyhow::{anyhow, Result};
 use bytes::{Buf, BytesMut};
 use krata::idm::{
-    client::{IdmBackend, IdmClient},
-    protocol::IdmPacket,
+    client::{IdmBackend, IdmInternalClient},
+    internal::INTERNAL_IDM_CHANNEL,
+    transport::IdmTransportPacket,
 };
 use kratart::channel::ChannelService;
 use log::{error, warn};
@@ -21,15 +22,19 @@ use tokio::{
     },
     task::JoinHandle,
 };
+use uuid::Uuid;
 
-type BackendFeedMap = Arc<Mutex<HashMap<u32, Sender<IdmPacket>>>>;
-type ClientMap = Arc<Mutex<HashMap<u32, IdmClient>>>;
+use crate::glt::GuestLookupTable;
+
+type BackendFeedMap = Arc<Mutex<HashMap<u32, Sender<IdmTransportPacket>>>>;
+type ClientMap = Arc<Mutex<HashMap<u32, IdmInternalClient>>>;
 
 #[derive(Clone)]
 pub struct DaemonIdmHandle {
+    glt: GuestLookupTable,
     clients: ClientMap,
     feeds: BackendFeedMap,
-    tx_sender: Sender<(u32, IdmPacket)>,
+    tx_sender: Sender<(u32, IdmTransportPacket)>,
     task: Arc<JoinHandle<()>>,
     snoop_sender: broadcast::Sender<DaemonIdmSnoopPacket>,
 }
@@ -39,7 +44,14 @@ impl DaemonIdmHandle {
         self.snoop_sender.subscribe()
     }
 
-    pub async fn client(&self, domid: u32) -> Result<IdmClient> {
+    pub async fn client(&self, uuid: Uuid) -> Result<IdmInternalClient> {
+        let Some(domid) = self.glt.lookup_domid_by_uuid(&uuid).await else {
+            return Err(anyhow!("unable to find domain {}", uuid));
+        };
+        self.client_by_domid(domid).await
+    }
+
+    pub async fn client_by_domid(&self, domid: u32) -> Result<IdmInternalClient> {
         client_or_create(domid, &self.tx_sender, &self.clients, &self.feeds).await
     }
 }
@@ -56,22 +68,23 @@ impl Drop for DaemonIdmHandle {
 pub struct DaemonIdmSnoopPacket {
     pub from: u32,
     pub to: u32,
-    pub packet: IdmPacket,
+    pub packet: IdmTransportPacket,
 }
 
 pub struct DaemonIdm {
+    glt: GuestLookupTable,
     clients: ClientMap,
     feeds: BackendFeedMap,
-    tx_sender: Sender<(u32, IdmPacket)>,
+    tx_sender: Sender<(u32, IdmTransportPacket)>,
     tx_raw_sender: Sender<(u32, Vec<u8>)>,
-    tx_receiver: Receiver<(u32, IdmPacket)>,
+    tx_receiver: Receiver<(u32, IdmTransportPacket)>,
     rx_receiver: Receiver<(u32, Option<Vec<u8>>)>,
     snoop_sender: broadcast::Sender<DaemonIdmSnoopPacket>,
     task: JoinHandle<()>,
 }
 
 impl DaemonIdm {
-    pub async fn new() -> Result<DaemonIdm> {
+    pub async fn new(glt: GuestLookupTable) -> Result<DaemonIdm> {
         let (service, tx_raw_sender, rx_receiver) =
             ChannelService::new("krata-channel".to_string(), None).await?;
         let (tx_sender, tx_receiver) = channel(100);
@@ -80,6 +93,7 @@ impl DaemonIdm {
         let clients = Arc::new(Mutex::new(HashMap::new()));
         let feeds = Arc::new(Mutex::new(HashMap::new()));
         Ok(DaemonIdm {
+            glt,
             rx_receiver,
             tx_receiver,
             tx_sender,
@@ -92,6 +106,7 @@ impl DaemonIdm {
     }
 
     pub async fn launch(mut self) -> Result<DaemonIdmHandle> {
+        let glt = self.glt.clone();
         let clients = self.clients.clone();
         let feeds = self.feeds.clone();
         let tx_sender = self.tx_sender.clone();
@@ -104,6 +119,7 @@ impl DaemonIdm {
             }
         });
         Ok(DaemonIdmHandle {
+            glt,
             clients,
             feeds,
             tx_sender,
@@ -136,7 +152,7 @@ impl DaemonIdm {
                             }
                             let mut packet = buffer.split_to(needed);
                             packet.advance(6);
-                            match IdmPacket::decode(packet) {
+                            match IdmTransportPacket::decode(packet) {
                                 Ok(packet) => {
                                     let _ = client_or_create(domid, &self.tx_sender, &self.clients, &self.feeds).await?;
                                     let guard = self.feeds.lock().await;
@@ -196,10 +212,10 @@ impl Drop for DaemonIdm {
 
 async fn client_or_create(
     domid: u32,
-    tx_sender: &Sender<(u32, IdmPacket)>,
+    tx_sender: &Sender<(u32, IdmTransportPacket)>,
     clients: &ClientMap,
     feeds: &BackendFeedMap,
-) -> Result<IdmClient> {
+) -> Result<IdmInternalClient> {
     let mut clients = clients.lock().await;
     let mut feeds = feeds.lock().await;
     match clients.entry(domid) {
@@ -212,7 +228,11 @@ async fn client_or_create(
                 rx_receiver,
                 tx_sender: tx_sender.clone(),
             };
-            let client = IdmClient::new(Box::new(backend) as Box<dyn IdmBackend>).await?;
+            let client = IdmInternalClient::new(
+                INTERNAL_IDM_CHANNEL,
+                Box::new(backend) as Box<dyn IdmBackend>,
+            )
+            .await?;
             entry.insert(client.clone());
             Ok(client)
         }
@@ -221,13 +241,13 @@ async fn client_or_create(
 
 pub struct IdmDaemonBackend {
     domid: u32,
-    rx_receiver: Receiver<IdmPacket>,
-    tx_sender: Sender<(u32, IdmPacket)>,
+    rx_receiver: Receiver<IdmTransportPacket>,
+    tx_sender: Sender<(u32, IdmTransportPacket)>,
 }
 
 #[async_trait::async_trait]
 impl IdmBackend for IdmDaemonBackend {
-    async fn recv(&mut self) -> Result<IdmPacket> {
+    async fn recv(&mut self) -> Result<IdmTransportPacket> {
         if let Some(packet) = self.rx_receiver.recv().await {
             Ok(packet)
         } else {
@@ -235,7 +255,7 @@ impl IdmBackend for IdmDaemonBackend {
         }
     }
 
-    async fn send(&mut self, packet: IdmPacket) -> Result<()> {
+    async fn send(&mut self, packet: IdmTransportPacket) -> Result<()> {
         self.tx_sender.send((self.domid, packet)).await?;
         Ok(())
     }

crates/daemon/src/lib.rs

@@ -1,10 +1,13 @@
-use std::{net::SocketAddr, path::PathBuf, str::FromStr};
+use std::{net::SocketAddr, path::PathBuf, str::FromStr, sync::Arc};
 
-use anyhow::Result;
+use anyhow::{anyhow, Result};
+use config::DaemonConfig;
 use console::{DaemonConsole, DaemonConsoleHandle};
 use control::DaemonControlService;
 use db::GuestStore;
+use devices::DaemonDeviceManager;
 use event::{DaemonEventContext, DaemonEventGenerator};
+use glt::GuestLookupTable;
 use idm::{DaemonIdm, DaemonIdmHandle};
 use krata::{dial::ControlDialAddress, v1::control::control_service_server::ControlServiceServer};
 use krataoci::{packer::service::OciPackerService, registry::OciPlatform};
@@ -21,10 +24,14 @@ use tokio_stream::wrappers::UnixListenerStream;
 use tonic::transport::{Identity, Server, ServerTlsConfig};
 use uuid::Uuid;
 
+pub mod command;
+pub mod config;
 pub mod console;
 pub mod control;
 pub mod db;
+pub mod devices;
 pub mod event;
+pub mod glt;
 pub mod idm;
 pub mod metrics;
 pub mod oci;
@@ -32,6 +39,9 @@ pub mod reconcile;
 
 pub struct Daemon {
     store: String,
+    _config: Arc<DaemonConfig>,
+    glt: GuestLookupTable,
+    devices: DaemonDeviceManager,
     guests: GuestStore,
     events: DaemonEventContext,
     guest_reconciler_task: JoinHandle<()>,
@@ -40,45 +50,95 @@ pub struct Daemon {
     idm: DaemonIdmHandle,
     console: DaemonConsoleHandle,
     packer: OciPackerService,
+    runtime: Runtime,
 }
 
 const GUEST_RECONCILER_QUEUE_LEN: usize = 1000;
 
 impl Daemon {
     pub async fn new(store: String) -> Result<Self> {
-        let mut image_cache_dir = PathBuf::from(store.clone());
+        let store_dir = PathBuf::from(store.clone());
+        let mut config_path = store_dir.clone();
+        config_path.push("config.toml");
+
+        let config = DaemonConfig::load(&config_path).await?;
+        let config = Arc::new(config);
+        let devices = DaemonDeviceManager::new(config.clone());
+
+        let mut image_cache_dir = store_dir.clone();
         image_cache_dir.push("cache");
         image_cache_dir.push("image");
         fs::create_dir_all(&image_cache_dir).await?;
 
-        let packer = OciPackerService::new(None, &image_cache_dir, OciPlatform::current())?;
+        let mut host_uuid_path = store_dir.clone();
+        host_uuid_path.push("host.uuid");
+        let host_uuid = if host_uuid_path.is_file() {
+            let content = fs::read_to_string(&host_uuid_path).await?;
+            Uuid::from_str(content.trim()).ok()
+        } else {
+            None
+        };
 
-        let runtime = Runtime::new(store.clone()).await?;
+        let host_uuid = if let Some(host_uuid) = host_uuid {
+            host_uuid
+        } else {
+            let generated = Uuid::new_v4();
+            let mut string = generated.to_string();
+            string.push('\n');
+            fs::write(&host_uuid_path, string).await?;
+            generated
+        };
+
+        let initrd_path = detect_guest_path(&store, "initrd")?;
+        let kernel_path = detect_guest_path(&store, "kernel")?;
+        let addons_path = detect_guest_path(&store, "addons.squashfs")?;
+
+        let seed = config.oci.seed.clone().map(PathBuf::from);
+        let packer = OciPackerService::new(seed, &image_cache_dir, OciPlatform::current()).await?;
+        let runtime = Runtime::new(host_uuid).await?;
+        let glt = GuestLookupTable::new(0, host_uuid);
         let guests_db_path = format!("{}/guests.db", store);
         let guests = GuestStore::open(&PathBuf::from(guests_db_path))?;
         let (guest_reconciler_notify, guest_reconciler_receiver) =
             channel::<Uuid>(GUEST_RECONCILER_QUEUE_LEN);
-        let idm = DaemonIdm::new().await?;
+        let idm = DaemonIdm::new(glt.clone()).await?;
         let idm = idm.launch().await?;
-        let console = DaemonConsole::new().await?;
+        let console = DaemonConsole::new(glt.clone()).await?;
         let console = console.launch().await?;
         let (events, generator) =
             DaemonEventGenerator::new(guests.clone(), guest_reconciler_notify.clone(), idm.clone())
                 .await?;
         let runtime_for_reconciler = runtime.dupe().await?;
         let guest_reconciler = GuestReconciler::new(
+            devices.clone(),
+            glt.clone(),
             guests.clone(),
             events.clone(),
             runtime_for_reconciler,
             packer.clone(),
             guest_reconciler_notify.clone(),
+            kernel_path,
+            initrd_path,
+            addons_path,
         )?;
 
         let guest_reconciler_task = guest_reconciler.launch(guest_reconciler_receiver).await?;
         let generator_task = generator.launch().await?;
 
+        // TODO: Create a way of abstracting early init tasks in kratad.
+        // TODO: Make initial power management policy configurable.
+        // FIXME: Power management hypercalls fail when running as an L1 hypervisor.
+        // let power = runtime.power_management_context().await?;
+        // power.set_smt_policy(true).await?;
+        // power
+        //     .set_scheduler_policy("performance".to_string())
+        //     .await?;
+
         Ok(Self {
             store,
+            _config: config,
+            glt,
+            devices,
             guests,
             events,
             guest_reconciler_task,
@@ -87,17 +147,21 @@ impl Daemon {
             idm,
             console,
             packer,
+            runtime,
         })
     }
 
     pub async fn listen(&mut self, addr: ControlDialAddress) -> Result<()> {
         let control_service = DaemonControlService::new(
+            self.glt.clone(),
+            self.devices.clone(),
             self.events.clone(),
             self.console.clone(),
             self.idm.clone(),
             self.guests.clone(),
             self.guest_reconciler_notify.clone(),
             self.packer.clone(),
+            self.runtime.clone(),
         );
 
         let mut server = Server::builder();
@@ -154,3 +218,16 @@ impl Drop for Daemon {
         self.generator_task.abort();
     }
 }
+
+fn detect_guest_path(store: &str, name: &str) -> Result<PathBuf> {
+    let mut path = PathBuf::from(format!("{}/guest/{}", store, name));
+    if path.is_file() {
+        return Ok(path);
+    }
+
+    path = PathBuf::from(format!("/usr/share/krata/guest/{}", name));
+    if path.is_file() {
+        return Ok(path);
+    }
+    Err(anyhow!("unable to find required guest file: {}", name))
+}

crates/daemon/src/metrics.rs

@@ -1,18 +1,18 @@
 use krata::{
-    idm::protocol::{IdmMetricFormat, IdmMetricNode},
+    idm::internal::{MetricFormat, MetricNode},
     v1::common::{GuestMetricFormat, GuestMetricNode},
 };
 
-fn idm_metric_format_to_api(format: IdmMetricFormat) -> GuestMetricFormat {
+fn idm_metric_format_to_api(format: MetricFormat) -> GuestMetricFormat {
     match format {
-        IdmMetricFormat::Unknown => GuestMetricFormat::Unknown,
-        IdmMetricFormat::Bytes => GuestMetricFormat::Bytes,
-        IdmMetricFormat::Integer => GuestMetricFormat::Integer,
-        IdmMetricFormat::DurationSeconds => GuestMetricFormat::DurationSeconds,
+        MetricFormat::Unknown => GuestMetricFormat::Unknown,
+        MetricFormat::Bytes => GuestMetricFormat::Bytes,
+        MetricFormat::Integer => GuestMetricFormat::Integer,
+        MetricFormat::DurationSeconds => GuestMetricFormat::DurationSeconds,
     }
 }
 
-pub fn idm_metric_to_api(node: IdmMetricNode) -> GuestMetricNode {
+pub fn idm_metric_to_api(node: MetricNode) -> GuestMetricNode {
     let format = node.format();
     GuestMetricNode {
         name: node.name,

crates/daemon/src/oci.rs

@@ -1,33 +1,72 @@
 use krata::v1::control::{
-    PullImageProgress, PullImageProgressLayer, PullImageProgressLayerPhase, PullImageProgressPhase,
+    image_progress_indication::Indication, ImageProgress, ImageProgressIndication,
+    ImageProgressIndicationBar, ImageProgressIndicationCompleted, ImageProgressIndicationHidden,
+    ImageProgressIndicationSpinner, ImageProgressLayer, ImageProgressLayerPhase,
+    ImageProgressPhase,
+};
+use krataoci::progress::{
+    OciProgress, OciProgressIndication, OciProgressLayer, OciProgressLayerPhase, OciProgressPhase,
 };
-use krataoci::progress::{OciProgress, OciProgressLayer, OciProgressLayerPhase, OciProgressPhase};
 
-fn convert_oci_layer_progress(layer: OciProgressLayer) -> PullImageProgressLayer {
-    PullImageProgressLayer {
+fn convert_oci_progress_indication(indication: OciProgressIndication) -> ImageProgressIndication {
+    ImageProgressIndication {
+        indication: Some(match indication {
+            OciProgressIndication::Hidden => Indication::Hidden(ImageProgressIndicationHidden {}),
+            OciProgressIndication::ProgressBar {
+                message,
+                current,
+                total,
+                bytes,
+            } => Indication::Bar(ImageProgressIndicationBar {
+                message: message.unwrap_or_default(),
+                current,
+                total,
+                is_bytes: bytes,
+            }),
+            OciProgressIndication::Spinner { message } => {
+                Indication::Spinner(ImageProgressIndicationSpinner {
+                    message: message.unwrap_or_default(),
+                })
+            }
+            OciProgressIndication::Completed {
+                message,
+                total,
+                bytes,
+            } => Indication::Completed(ImageProgressIndicationCompleted {
+                message: message.unwrap_or_default(),
+                total: total.unwrap_or(0),
+                is_bytes: bytes,
+            }),
+        }),
+    }
+}
+
+fn convert_oci_layer_progress(layer: OciProgressLayer) -> ImageProgressLayer {
+    ImageProgressLayer {
         id: layer.id,
         phase: match layer.phase {
-            OciProgressLayerPhase::Waiting => PullImageProgressLayerPhase::Waiting,
-            OciProgressLayerPhase::Downloading => PullImageProgressLayerPhase::Downloading,
-            OciProgressLayerPhase::Downloaded => PullImageProgressLayerPhase::Downloaded,
-            OciProgressLayerPhase::Extracting => PullImageProgressLayerPhase::Extracting,
-            OciProgressLayerPhase::Extracted => PullImageProgressLayerPhase::Extracted,
+            OciProgressLayerPhase::Waiting => ImageProgressLayerPhase::Waiting,
+            OciProgressLayerPhase::Downloading => ImageProgressLayerPhase::Downloading,
+            OciProgressLayerPhase::Downloaded => ImageProgressLayerPhase::Downloaded,
+            OciProgressLayerPhase::Extracting => ImageProgressLayerPhase::Extracting,
+            OciProgressLayerPhase::Extracted => ImageProgressLayerPhase::Extracted,
         }
         .into(),
-        value: layer.value,
-        total: layer.total,
+        indication: Some(convert_oci_progress_indication(layer.indication)),
     }
 }
 
-pub fn convert_oci_progress(oci: OciProgress) -> PullImageProgress {
-    PullImageProgress {
+pub fn convert_oci_progress(oci: OciProgress) -> ImageProgress {
+    ImageProgress {
         phase: match oci.phase {
-            OciProgressPhase::Resolving => PullImageProgressPhase::Resolving,
-            OciProgressPhase::Resolved => PullImageProgressPhase::Resolved,
-            OciProgressPhase::ConfigAcquire => PullImageProgressPhase::ConfigAcquire,
-            OciProgressPhase::LayerAcquire => PullImageProgressPhase::LayerAcquire,
-            OciProgressPhase::Packing => PullImageProgressPhase::Packing,
-            OciProgressPhase::Complete => PullImageProgressPhase::Complete,
+            OciProgressPhase::Started => ImageProgressPhase::Started,
+            OciProgressPhase::Resolving => ImageProgressPhase::Resolving,
+            OciProgressPhase::Resolved => ImageProgressPhase::Resolved,
+            OciProgressPhase::ConfigDownload => ImageProgressPhase::ConfigDownload,
+            OciProgressPhase::LayerDownload => ImageProgressPhase::LayerDownload,
+            OciProgressPhase::Assemble => ImageProgressPhase::Assemble,
+            OciProgressPhase::Pack => ImageProgressPhase::Pack,
+            OciProgressPhase::Complete => ImageProgressPhase::Complete,
         }
         .into(),
         layers: oci
@@ -35,7 +74,6 @@ pub fn convert_oci_progress(oci: OciProgress) -> PullImageProgress {
             .into_values()
             .map(convert_oci_layer_progress)
             .collect::<Vec<_>>(),
-        value: oci.value,
-        total: oci.total,
+        indication: Some(convert_oci_progress_indication(oci.indication)),
     }
 }

crates/daemon/src/reconcile/guest/mod.rs

@@ -1,20 +1,17 @@
 use std::{
     collections::{hash_map::Entry, HashMap},
+    path::PathBuf,
     sync::Arc,
     time::Duration,
 };
 
-use anyhow::{anyhow, Result};
-use krata::launchcfg::LaunchPackedFormat;
+use anyhow::Result;
 use krata::v1::{
-    common::{
-        guest_image_spec::Image, Guest, GuestErrorInfo, GuestExitInfo, GuestNetworkState,
-        GuestOciImageFormat, GuestState, GuestStatus,
-    },
+    common::{Guest, GuestErrorInfo, GuestExitInfo, GuestNetworkState, GuestState, GuestStatus},
     control::GuestChangedEvent,
 };
-use krataoci::packer::{service::OciPackerService, OciPackedFormat};
-use kratart::{launch::GuestLaunchRequest, GuestInfo, Runtime};
+use krataoci::packer::service::OciPackerService;
+use kratart::{GuestInfo, Runtime};
 use log::{error, info, trace, warn};
 use tokio::{
     select,
@@ -29,9 +26,15 @@ use uuid::Uuid;
 
 use crate::{
     db::GuestStore,
+    devices::DaemonDeviceManager,
     event::{DaemonEvent, DaemonEventContext},
+    glt::GuestLookupTable,
 };
 
+use self::start::GuestStarter;
+
+mod start;
+
 const PARALLEL_LIMIT: u32 = 5;
 
 #[derive(Debug)]
@@ -53,28 +56,44 @@ impl Drop for GuestReconcilerEntry {
 
 #[derive(Clone)]
 pub struct GuestReconciler {
+    devices: DaemonDeviceManager,
+    glt: GuestLookupTable,
     guests: GuestStore,
     events: DaemonEventContext,
     runtime: Runtime,
     packer: OciPackerService,
+    kernel_path: PathBuf,
+    initrd_path: PathBuf,
+    addons_path: PathBuf,
     tasks: Arc<Mutex<HashMap<Uuid, GuestReconcilerEntry>>>,
     guest_reconciler_notify: Sender<Uuid>,
     reconcile_lock: Arc<RwLock<()>>,
 }
 
 impl GuestReconciler {
+    #[allow(clippy::too_many_arguments)]
     pub fn new(
+        devices: DaemonDeviceManager,
+        glt: GuestLookupTable,
         guests: GuestStore,
         events: DaemonEventContext,
         runtime: Runtime,
         packer: OciPackerService,
         guest_reconciler_notify: Sender<Uuid>,
+        kernel_path: PathBuf,
+        initrd_path: PathBuf,
+        modules_path: PathBuf,
     ) -> Result<Self> {
         Ok(Self {
+            devices,
+            glt,
             guests,
             events,
             runtime,
             packer,
+            kernel_path,
+            initrd_path,
+            addons_path: modules_path,
             tasks: Arc::new(Mutex::new(HashMap::new())),
             guest_reconciler_notify,
             reconcile_lock: Arc::new(RwLock::with_max_readers((), PARALLEL_LIMIT)),
@@ -108,7 +127,7 @@ impl GuestReconciler {
                         }
                     },
 
-                    _ = sleep(Duration::from_secs(5)) => {
+                    _ = sleep(Duration::from_secs(15)) => {
                         if let Err(error) = self.reconcile_runtime(false).await {
                             error!("runtime reconciler failed: {}", error);
                         }
@@ -123,6 +142,25 @@ impl GuestReconciler {
         trace!("reconciling runtime");
         let runtime_guests = self.runtime.list().await?;
         let stored_guests = self.guests.list().await?;
+
+        let non_existent_guests = runtime_guests
+            .iter()
+            .filter(|x| !stored_guests.iter().any(|g| *g.0 == x.uuid))
+            .collect::<Vec<_>>();
+
+        for guest in non_existent_guests {
+            warn!("destroying unknown runtime guest {}", guest.uuid);
+            if let Err(error) = self.runtime.destroy(guest.uuid).await {
+                error!(
+                    "failed to destroy unknown runtime guest {}: {}",
+                    guest.uuid, error
+                );
+            }
+            self.guests.remove(guest.uuid).await?;
+        }
+
+        let mut device_claims = HashMap::new();
+
         for (uuid, mut stored_guest) in stored_guests {
             let previous_guest = stored_guest.clone();
             let runtime_guest = runtime_guests.iter().find(|x| x.uuid == uuid);
@@ -136,6 +174,7 @@ impl GuestReconciler {
                 }
 
                 Some(runtime) => {
+                    self.glt.associate(uuid, runtime.domid).await;
                     let mut state = stored_guest.state.as_mut().cloned().unwrap_or_default();
                     if let Some(code) = runtime.state.exit_code {
                         state.status = GuestStatus::Exited.into();
@@ -143,6 +182,17 @@ impl GuestReconciler {
                     } else {
                         state.status = GuestStatus::Started.into();
                     }
+
+                    for device in &stored_guest
+                        .spec
+                        .as_ref()
+                        .cloned()
+                        .unwrap_or_default()
+                        .devices
+                    {
+                        device_claims.insert(device.name.clone(), uuid);
+                    }
+
                     state.network = Some(guestinfo_to_networkstate(runtime));
                     stored_guest.state = Some(state);
                 }
@@ -155,6 +205,9 @@ impl GuestReconciler {
                 let _ = self.guest_reconciler_notify.try_send(uuid);
             }
         }
+
+        self.devices.update_claims(device_claims).await?;
+
         Ok(())
     }
 
@@ -224,71 +277,16 @@ impl GuestReconciler {
     }
 
     async fn start(&self, uuid: Uuid, guest: &mut Guest) -> Result<GuestReconcilerResult> {
-        let Some(ref spec) = guest.spec else {
-            return Err(anyhow!("guest spec not specified"));
+        let starter = GuestStarter {
+            devices: &self.devices,
+            kernel_path: &self.kernel_path,
+            initrd_path: &self.initrd_path,
+            addons_path: &self.addons_path,
+            packer: &self.packer,
+            glt: &self.glt,
+            runtime: &self.runtime,
         };
-
-        let Some(ref image) = spec.image else {
-            return Err(anyhow!("image spec not provided"));
-        };
-        let oci = match image.image {
-            Some(Image::Oci(ref oci)) => oci,
-            None => {
-                return Err(anyhow!("oci spec not specified"));
-            }
-        };
-        let task = spec.task.as_ref().cloned().unwrap_or_default();
-
-        let image = self
-            .packer
-            .recall(
-                &oci.digest,
-                match oci.format() {
-                    GuestOciImageFormat::Unknown => OciPackedFormat::Squashfs,
-                    GuestOciImageFormat::Squashfs => OciPackedFormat::Squashfs,
-                    GuestOciImageFormat::Erofs => OciPackedFormat::Erofs,
-                },
-            )
-            .await?;
-
-        let Some(image) = image else {
-            return Err(anyhow!(
-                "image {} in the requested format did not exist",
-                oci.digest
-            ));
-        };
-
-        let info = self
-            .runtime
-            .launch(GuestLaunchRequest {
-                format: LaunchPackedFormat::Squashfs,
-                uuid: Some(uuid),
-                name: if spec.name.is_empty() {
-                    None
-                } else {
-                    Some(spec.name.clone())
-                },
-                image,
-                vcpus: spec.vcpus,
-                mem: spec.mem,
-                env: task
-                    .environment
-                    .iter()
-                    .map(|x| (x.key.clone(), x.value.clone()))
-                    .collect::<HashMap<_, _>>(),
-                run: empty_vec_optional(task.command.clone()),
-                debug: false,
-            })
-            .await?;
-        info!("started guest {}", uuid);
-        guest.state = Some(GuestState {
-            status: GuestStatus::Started.into(),
-            network: Some(guestinfo_to_networkstate(&info)),
-            exit_info: None,
-            error_info: None,
-            domid: info.domid,
-        });
-        Ok(GuestReconcilerResult::Changed { rerun: false })
+        starter.start(uuid, guest).await
     }
 
     async fn exited(&self, guest: &mut Guest) -> Result<GuestReconcilerResult> {
@@ -305,14 +303,22 @@ impl GuestReconciler {
             trace!("failed to destroy runtime guest {}: {}", uuid, error);
         }
 
+        let domid = guest.state.as_ref().map(|x| x.domid);
+
+        if let Some(domid) = domid {
+            self.glt.remove(uuid, domid).await;
+        }
+
         info!("destroyed guest {}", uuid);
         guest.state = Some(GuestState {
             status: GuestStatus::Destroyed.into(),
             network: None,
             exit_info: None,
             error_info: None,
-            domid: guest.state.as_ref().map(|x| x.domid).unwrap_or(u32::MAX),
+            host: self.glt.host_uuid().to_string(),
+            domid: domid.unwrap_or(u32::MAX),
         });
+        self.devices.release_all(uuid).await?;
         Ok(GuestReconcilerResult::Changed { rerun: false })
     }
 
@@ -356,15 +362,7 @@ impl GuestReconciler {
     }
 }
 
-fn empty_vec_optional<T>(value: Vec<T>) -> Option<Vec<T>> {
-    if value.is_empty() {
-        None
-    } else {
-        Some(value)
-    }
-}
-
-fn guestinfo_to_networkstate(info: &GuestInfo) -> GuestNetworkState {
+pub fn guestinfo_to_networkstate(info: &GuestInfo) -> GuestNetworkState {
     GuestNetworkState {
         guest_ipv4: info.guest_ipv4.map(|x| x.to_string()).unwrap_or_default(),
         guest_ipv6: info.guest_ipv6.map(|x| x.to_string()).unwrap_or_default(),

crates/daemon/src/reconcile/guest/start.rs

@@ -0,0 +1,224 @@
+use std::collections::HashMap;
+use std::path::{Path, PathBuf};
+use std::str::FromStr;
+use std::sync::atomic::{AtomicBool, Ordering};
+
+use anyhow::{anyhow, Result};
+use futures::StreamExt;
+use krata::launchcfg::LaunchPackedFormat;
+use krata::v1::common::GuestOciImageSpec;
+use krata::v1::common::{guest_image_spec::Image, Guest, GuestState, GuestStatus, OciImageFormat};
+use krataoci::packer::{service::OciPackerService, OciPackedFormat};
+use kratart::launch::{PciBdf, PciDevice, PciRdmReservePolicy};
+use kratart::{launch::GuestLaunchRequest, Runtime};
+use log::info;
+
+use tokio::fs::{self, File};
+use tokio::io::AsyncReadExt;
+use tokio_tar::Archive;
+use uuid::Uuid;
+
+use crate::config::DaemonPciDeviceRdmReservePolicy;
+use crate::devices::DaemonDeviceManager;
+use crate::{
+    glt::GuestLookupTable,
+    reconcile::guest::{guestinfo_to_networkstate, GuestReconcilerResult},
+};
+
+pub struct GuestStarter<'a> {
+    pub devices: &'a DaemonDeviceManager,
+    pub kernel_path: &'a Path,
+    pub initrd_path: &'a Path,
+    pub addons_path: &'a Path,
+    pub packer: &'a OciPackerService,
+    pub glt: &'a GuestLookupTable,
+    pub runtime: &'a Runtime,
+}
+
+impl GuestStarter<'_> {
+    pub async fn oci_spec_tar_read_file(
+        &self,
+        file: &Path,
+        oci: &GuestOciImageSpec,
+    ) -> Result<Vec<u8>> {
+        if oci.format() != OciImageFormat::Tar {
+            return Err(anyhow!(
+                "oci image spec for {} is required to be in tar format",
+                oci.digest
+            ));
+        }
+
+        let image = self
+            .packer
+            .recall(&oci.digest, OciPackedFormat::Tar)
+            .await?;
+
+        let Some(image) = image else {
+            return Err(anyhow!("image {} was not found in tar format", oci.digest));
+        };
+
+        let mut archive = Archive::new(File::open(&image.path).await?);
+        let mut entries = archive.entries()?;
+        while let Some(entry) = entries.next().await {
+            let mut entry = entry?;
+            let path = entry.path()?;
+            if path == file {
+                let mut buffer = Vec::new();
+                entry.read_to_end(&mut buffer).await?;
+                return Ok(buffer);
+            }
+        }
+        Err(anyhow!(
+            "unable to find file {} in image {}",
+            file.to_string_lossy(),
+            oci.digest
+        ))
+    }
+
+    pub async fn start(&self, uuid: Uuid, guest: &mut Guest) -> Result<GuestReconcilerResult> {
+        let Some(ref spec) = guest.spec else {
+            return Err(anyhow!("guest spec not specified"));
+        };
+
+        let Some(ref image) = spec.image else {
+            return Err(anyhow!("image spec not provided"));
+        };
+        let oci = match image.image {
+            Some(Image::Oci(ref oci)) => oci,
+            None => {
+                return Err(anyhow!("oci spec not specified"));
+            }
+        };
+        let task = spec.task.as_ref().cloned().unwrap_or_default();
+
+        let image = self
+            .packer
+            .recall(
+                &oci.digest,
+                match oci.format() {
+                    OciImageFormat::Unknown => OciPackedFormat::Squashfs,
+                    OciImageFormat::Squashfs => OciPackedFormat::Squashfs,
+                    OciImageFormat::Erofs => OciPackedFormat::Erofs,
+                    OciImageFormat::Tar => {
+                        return Err(anyhow!("tar image format is not supported for guests"));
+                    }
+                },
+            )
+            .await?;
+
+        let Some(image) = image else {
+            return Err(anyhow!(
+                "image {} in the requested format did not exist",
+                oci.digest
+            ));
+        };
+
+        let kernel = if let Some(ref spec) = spec.kernel {
+            let Some(Image::Oci(ref oci)) = spec.image else {
+                return Err(anyhow!("kernel image spec must be an oci image"));
+            };
+            self.oci_spec_tar_read_file(&PathBuf::from("kernel/image"), oci)
+                .await?
+        } else {
+            fs::read(&self.kernel_path).await?
+        };
+        let initrd = if let Some(ref spec) = spec.initrd {
+            let Some(Image::Oci(ref oci)) = spec.image else {
+                return Err(anyhow!("initrd image spec must be an oci image"));
+            };
+            self.oci_spec_tar_read_file(&PathBuf::from("krata/initrd"), oci)
+                .await?
+        } else {
+            fs::read(&self.initrd_path).await?
+        };
+
+        let success = AtomicBool::new(false);
+
+        let _device_release_guard = scopeguard::guard(
+            (spec.devices.clone(), self.devices.clone()),
+            |(devices, manager)| {
+                if !success.load(Ordering::Acquire) {
+                    tokio::task::spawn(async move {
+                        for device in devices {
+                            let _ = manager.release(&device.name, uuid).await;
+                        }
+                    });
+                }
+            },
+        );
+
+        let mut pcis = Vec::new();
+        for device in &spec.devices {
+            let state = self.devices.claim(&device.name, uuid).await?;
+            if let Some(cfg) = state.pci {
+                for location in cfg.locations {
+                    let pci = PciDevice {
+                        bdf: PciBdf::from_str(&location)?.with_domain(0),
+                        permissive: cfg.permissive,
+                        msi_translate: cfg.msi_translate,
+                        power_management: cfg.power_management,
+                        rdm_reserve_policy: match cfg.rdm_reserve_policy {
+                            DaemonPciDeviceRdmReservePolicy::Strict => PciRdmReservePolicy::Strict,
+                            DaemonPciDeviceRdmReservePolicy::Relaxed => {
+                                PciRdmReservePolicy::Relaxed
+                            }
+                        },
+                    };
+                    pcis.push(pci);
+                }
+            } else {
+                return Err(anyhow!(
+                    "device '{}' isn't a known device type",
+                    device.name
+                ));
+            }
+        }
+
+        let info = self
+            .runtime
+            .launch(GuestLaunchRequest {
+                format: LaunchPackedFormat::Squashfs,
+                uuid: Some(uuid),
+                name: if spec.name.is_empty() {
+                    None
+                } else {
+                    Some(spec.name.clone())
+                },
+                image,
+                kernel,
+                initrd,
+                vcpus: spec.vcpus,
+                mem: spec.mem,
+                pcis,
+                env: task
+                    .environment
+                    .iter()
+                    .map(|x| (x.key.clone(), x.value.clone()))
+                    .collect::<HashMap<_, _>>(),
+                run: empty_vec_optional(task.command.clone()),
+                debug: false,
+                addons_image: Some(self.addons_path.to_path_buf()),
+            })
+            .await?;
+        self.glt.associate(uuid, info.domid).await;
+        info!("started guest {}", uuid);
+        guest.state = Some(GuestState {
+            status: GuestStatus::Started.into(),
+            network: Some(guestinfo_to_networkstate(&info)),
+            exit_info: None,
+            error_info: None,
+            host: self.glt.host_uuid().to_string(),
+            domid: info.domid,
+        });
+        success.store(true, Ordering::Release);
+        Ok(GuestReconcilerResult::Changed { rerun: false })
+    }
+}
+
+fn empty_vec_optional<T>(value: Vec<T>) -> Option<Vec<T>> {
+    if value.is_empty() {
+        None
+    } else {
+        Some(value)
+    }
+}

crates/guest/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-guest"
-description = "Guest services for the krata hypervisor."
+description = "Guest services for the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true
@@ -14,13 +14,14 @@ cgroups-rs = { workspace = true }
 env_logger = { workspace = true }
 futures = { workspace = true }
 ipnetwork = { workspace = true }
-krata = { path = "../krata", version = "^0.0.9" }
-krata-xenstore = { path = "../xen/xenstore", version = "^0.0.9" }
+krata = { path = "../krata", version = "^0.0.12" }
+krata-xenstore = { path = "../xen/xenstore", version = "^0.0.12" }
 libc = { workspace = true }
 log = { workspace = true }
 nix = { workspace = true, features = ["ioctl", "process", "fs"] }
 oci-spec = { workspace = true }
 path-absolutize = { workspace = true }
+platform-info = { workspace = true }
 rtnetlink = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }

crates/guest/src/background.rs

@@ -1,15 +1,17 @@
 use crate::{
     childwait::{ChildEvent, ChildWait},
     death,
+    exec::GuestExecTask,
     metrics::MetricsCollector,
 };
 use anyhow::Result;
 use cgroups_rs::Cgroup;
 use krata::idm::{
-    client::IdmClient,
-    protocol::{
-        idm_event::Event, idm_request::Request, idm_response::Response, IdmEvent, IdmExitEvent,
-        IdmMetricsResponse, IdmPingResponse, IdmRequest,
+    client::{IdmClientStreamResponseHandle, IdmInternalClient},
+    internal::{
+        event::Event as EventType, request::Request as RequestType,
+        response::Response as ResponseType, Event, ExecStreamResponseUpdate, ExitEvent,
+        MetricsResponse, PingResponse, Request, Response,
     },
 };
 use log::debug;
@@ -17,14 +19,18 @@ use nix::unistd::Pid;
 use tokio::{select, sync::broadcast};
 
 pub struct GuestBackground {
-    idm: IdmClient,
+    idm: IdmInternalClient,
     child: Pid,
     _cgroup: Cgroup,
     wait: ChildWait,
 }
 
 impl GuestBackground {
-    pub async fn new(idm: IdmClient, cgroup: Cgroup, child: Pid) -> Result<GuestBackground> {
+    pub async fn new(
+        idm: IdmInternalClient,
+        cgroup: Cgroup,
+        child: Pid,
+    ) -> Result<GuestBackground> {
         Ok(GuestBackground {
             idm,
             child,
@@ -36,11 +42,11 @@ impl GuestBackground {
     pub async fn run(&mut self) -> Result<()> {
         let mut event_subscription = self.idm.subscribe().await?;
         let mut requests_subscription = self.idm.requests().await?;
+        let mut request_streams_subscription = self.idm.request_streams().await?;
         loop {
             select! {
                 x = event_subscription.recv() => match x {
                     Ok(_event) => {
-
                     },
 
                     Err(broadcast::error::RecvError::Closed) => {
@@ -54,8 +60,23 @@ impl GuestBackground {
                 },
 
                 x = requests_subscription.recv() => match x {
-                    Ok(request) => {
-                        self.handle_idm_request(request).await?;
+                    Ok((id, request)) => {
+                        self.handle_idm_request(id, request).await?;
+                    },
+
+                    Err(broadcast::error::RecvError::Closed) => {
+                        debug!("idm packet channel closed");
+                        break;
+                    },
+
+                    _ => {
+                        continue;
+                    }
+                },
+
+                x = request_streams_subscription.recv() => match x {
+                    Ok(handle) => {
+                        self.handle_idm_stream_request(handle).await?;
                     },
 
                     Err(broadcast::error::RecvError::Closed) => {
@@ -79,25 +100,56 @@ impl GuestBackground {
         Ok(())
     }
 
-    async fn handle_idm_request(&mut self, packet: IdmRequest) -> Result<()> {
-        let id = packet.id;
-
+    async fn handle_idm_request(&mut self, id: u64, packet: Request) -> Result<()> {
         match packet.request {
-            Some(Request::Ping(_)) => {
+            Some(RequestType::Ping(_)) => {
                 self.idm
-                    .respond(id, Response::Ping(IdmPingResponse {}))
+                    .respond(
+                        id,
+                        Response {
+                            response: Some(ResponseType::Ping(PingResponse {})),
+                        },
+                    )
                     .await?;
             }
 
-            Some(Request::Metrics(_)) => {
+            Some(RequestType::Metrics(_)) => {
                 let metrics = MetricsCollector::new()?;
                 let root = metrics.collect()?;
-                let response = IdmMetricsResponse { root: Some(root) };
+                let response = Response {
+                    response: Some(ResponseType::Metrics(MetricsResponse { root: Some(root) })),
+                };
 
-                self.idm.respond(id, Response::Metrics(response)).await?;
+                self.idm.respond(id, response).await?;
             }
 
-            None => {}
+            _ => {}
+        }
+        Ok(())
+    }
+
+    async fn handle_idm_stream_request(
+        &mut self,
+        handle: IdmClientStreamResponseHandle<Request>,
+    ) -> Result<()> {
+        if let Some(RequestType::ExecStream(_)) = &handle.initial.request {
+            tokio::task::spawn(async move {
+                let exec = GuestExecTask { handle };
+                if let Err(error) = exec.run().await {
+                    let _ = exec
+                        .handle
+                        .respond(Response {
+                            response: Some(ResponseType::ExecStream(ExecStreamResponseUpdate {
+                                exited: true,
+                                error: error.to_string(),
+                                exit_code: -1,
+                                stdout: vec![],
+                                stderr: vec![],
+                            })),
+                        })
+                        .await;
+                }
+            });
         }
         Ok(())
     }
@@ -105,8 +157,8 @@ impl GuestBackground {
     async fn child_event(&mut self, event: ChildEvent) -> Result<()> {
         if event.pid == self.child {
             self.idm
-                .emit(IdmEvent {
-                    event: Some(Event::Exit(IdmExitEvent { code: event.status })),
+                .emit(Event {
+                    event: Some(EventType::Exit(ExitEvent { code: event.status })),
                 })
                 .await?;
             death(event.status).await?;

crates/guest/src/exec.rs

@@ -0,0 +1,172 @@
+use std::{collections::HashMap, process::Stdio};
+
+use anyhow::{anyhow, Result};
+use krata::idm::{
+    client::IdmClientStreamResponseHandle,
+    internal::{
+        exec_stream_request_update::Update, request::Request as RequestType,
+        ExecStreamResponseUpdate,
+    },
+    internal::{response::Response as ResponseType, Request, Response},
+};
+use tokio::{
+    io::{AsyncReadExt, AsyncWriteExt},
+    join,
+    process::Command,
+};
+
+pub struct GuestExecTask {
+    pub handle: IdmClientStreamResponseHandle<Request>,
+}
+
+impl GuestExecTask {
+    pub async fn run(&self) -> Result<()> {
+        let mut receiver = self.handle.take().await?;
+
+        let Some(ref request) = self.handle.initial.request else {
+            return Err(anyhow!("request was empty"));
+        };
+
+        let RequestType::ExecStream(update) = request else {
+            return Err(anyhow!("request was not an exec update"));
+        };
+
+        let Some(Update::Start(ref start)) = update.update else {
+            return Err(anyhow!("first request did not contain a start update"));
+        };
+
+        let mut cmd = start.command.clone();
+        if cmd.is_empty() {
+            return Err(anyhow!("command line was empty"));
+        }
+        let exe = cmd.remove(0);
+        let mut env = HashMap::new();
+        for entry in &start.environment {
+            env.insert(entry.key.clone(), entry.value.clone());
+        }
+
+        if !env.contains_key("PATH") {
+            env.insert(
+                "PATH".to_string(),
+                "/bin:/usr/bin:/usr/local/bin".to_string(),
+            );
+        }
+
+        let dir = if start.working_directory.is_empty() {
+            "/".to_string()
+        } else {
+            start.working_directory.clone()
+        };
+
+        let mut child = Command::new(exe)
+            .args(cmd)
+            .envs(env)
+            .current_dir(dir)
+            .stdin(Stdio::piped())
+            .stdout(Stdio::piped())
+            .stderr(Stdio::piped())
+            .kill_on_drop(true)
+            .spawn()
+            .map_err(|error| anyhow!("failed to spawn: {}", error))?;
+
+        let mut stdin = child
+            .stdin
+            .take()
+            .ok_or_else(|| anyhow!("stdin was missing"))?;
+        let mut stdout = child
+            .stdout
+            .take()
+            .ok_or_else(|| anyhow!("stdout was missing"))?;
+        let mut stderr = child
+            .stderr
+            .take()
+            .ok_or_else(|| anyhow!("stderr was missing"))?;
+
+        let stdout_handle = self.handle.clone();
+        let stdout_task = tokio::task::spawn(async move {
+            let mut stdout_buffer = vec![0u8; 8 * 1024];
+            loop {
+                let Ok(size) = stdout.read(&mut stdout_buffer).await else {
+                    break;
+                };
+                if size > 0 {
+                    let response = Response {
+                        response: Some(ResponseType::ExecStream(ExecStreamResponseUpdate {
+                            exited: false,
+                            exit_code: 0,
+                            error: String::new(),
+                            stdout: stdout_buffer[0..size].to_vec(),
+                            stderr: vec![],
+                        })),
+                    };
+                    let _ = stdout_handle.respond(response).await;
+                } else {
+                    break;
+                }
+            }
+        });
+
+        let stderr_handle = self.handle.clone();
+        let stderr_task = tokio::task::spawn(async move {
+            let mut stderr_buffer = vec![0u8; 8 * 1024];
+            loop {
+                let Ok(size) = stderr.read(&mut stderr_buffer).await else {
+                    break;
+                };
+                if size > 0 {
+                    let response = Response {
+                        response: Some(ResponseType::ExecStream(ExecStreamResponseUpdate {
+                            exited: false,
+                            exit_code: 0,
+                            error: String::new(),
+                            stdout: vec![],
+                            stderr: stderr_buffer[0..size].to_vec(),
+                        })),
+                    };
+                    let _ = stderr_handle.respond(response).await;
+                } else {
+                    break;
+                }
+            }
+        });
+
+        let stdin_task = tokio::task::spawn(async move {
+            loop {
+                let Some(request) = receiver.recv().await else {
+                    break;
+                };
+
+                let Some(RequestType::ExecStream(update)) = request.request else {
+                    continue;
+                };
+
+                let Some(Update::Stdin(update)) = update.update else {
+                    continue;
+                };
+
+                if stdin.write_all(&update.data).await.is_err() {
+                    break;
+                }
+            }
+        });
+
+        let exit = child.wait().await?;
+        let code = exit.code().unwrap_or(-1);
+
+        let _ = join!(stdout_task, stderr_task);
+        stdin_task.abort();
+
+        let response = Response {
+            response: Some(ResponseType::ExecStream(ExecStreamResponseUpdate {
+                exited: true,
+                exit_code: code,
+                error: String::new(),
+                stdout: vec![],
+                stderr: vec![],
+            })),
+        };
+        self.handle.respond(response).await?;
+
+        Ok(())
+    }
+}

crates/guest/src/init.rs

@@ -3,7 +3,8 @@ use cgroups_rs::{Cgroup, CgroupPid};
 use futures::stream::TryStreamExt;
 use ipnetwork::IpNetwork;
 use krata::ethtool::EthtoolHandle;
-use krata::idm::client::IdmClient;
+use krata::idm::client::IdmInternalClient;
+use krata::idm::internal::INTERNAL_IDM_CHANNEL;
 use krata::launchcfg::{LaunchInfo, LaunchNetwork, LaunchPackedFormat};
 use libc::{sethostname, setsid, TIOCSCTTY};
 use log::{trace, warn};
@@ -11,6 +12,7 @@ use nix::ioctl_write_int_bad;
 use nix::unistd::{dup2, execve, fork, ForkResult, Pid};
 use oci_spec::image::{Config, ImageConfiguration};
 use path_absolutize::Absolutize;
+use platform_info::{PlatformInfo, PlatformInfoAPI, UNameAPI};
 use std::collections::HashMap;
 use std::ffi::CString;
 use std::fs::{File, OpenOptions, Permissions};
@@ -49,6 +51,10 @@ const NEW_ROOT_DEV_PATH: &str = "/newroot/dev";
 const IMAGE_CONFIG_JSON_PATH: &str = "/config/image/config.json";
 const LAUNCH_CONFIG_JSON_PATH: &str = "/config/launch.json";
 
+const ADDONS_DEVICE_PATH: &str = "/dev/xvdc";
+const ADDONS_MOUNT_PATH: &str = "/addons";
+const ADDONS_MODULES_PATH: &str = "/addons/modules";
+
 ioctl_write_int_bad!(set_controlling_terminal, TIOCSCTTY);
 
 pub struct GuestInit {}
@@ -77,7 +83,7 @@ impl GuestInit {
             Err(error) => warn!("failed to open console: {}", error),
         };
 
-        let idm = IdmClient::open("/dev/hvc1")
+        let idm = IdmInternalClient::open(INTERNAL_IDM_CHANNEL, "/dev/hvc1")
             .await
             .map_err(|x| anyhow!("failed to open idm client: {}", x))?;
         self.mount_config_image().await?;
@@ -87,7 +93,10 @@ impl GuestInit {
 
         self.mount_root_image(launch.root.format.clone()).await?;
 
+        self.mount_addons().await?;
+
         self.mount_new_root().await?;
+        self.mount_kernel_modules().await?;
         self.bind_new_root().await?;
 
         if let Some(hostname) = launch.hostname.clone() {
@@ -136,19 +145,63 @@ impl GuestInit {
         self.create_dir("/root", Some(0o0700)).await?;
         self.create_dir("/tmp", None).await?;
         self.create_dir("/run", Some(0o0755)).await?;
-        self.mount_kernel_fs("devtmpfs", "/dev", "mode=0755", None)
+        self.mount_kernel_fs("devtmpfs", "/dev", "mode=0755", None, None)
+            .await?;
+        self.mount_kernel_fs("proc", "/proc", "", None, None)
+            .await?;
+        self.mount_kernel_fs("sysfs", "/sys", "", None, None)
+            .await?;
+        self.create_dir("/dev/pts", Some(0o0755)).await?;
+        self.mount_kernel_fs("devpts", "/dev/pts", "", None, Some("/dev/ptmx"))
             .await?;
-        self.mount_kernel_fs("proc", "/proc", "", None).await?;
-        self.mount_kernel_fs("sysfs", "/sys", "", None).await?;
         fs::symlink("/proc/self/fd", "/dev/fd").await?;
         fs::symlink("/proc/self/fd/0", "/dev/stdin").await?;
         fs::symlink("/proc/self/fd/1", "/dev/stdout").await?;
         fs::symlink("/proc/self/fd/2", "/dev/stderr").await?;
-        self.mount_kernel_fs("cgroup2", "/sys/fs/cgroup", "", Some(MountFlags::RELATIME))
+        self.mount_kernel_fs(
+            "cgroup2",
+            "/sys/fs/cgroup",
+            "",
+            Some(MountFlags::RELATIME),
+            None,
+        )
         .await?;
         Ok(())
     }
 
+    async fn mount_addons(&mut self) -> Result<()> {
+        if !fs::try_exists(ADDONS_DEVICE_PATH).await? {
+            return Ok(());
+        }
+
+        self.mount_image(
+            &PathBuf::from(ADDONS_DEVICE_PATH),
+            &PathBuf::from(ADDONS_MOUNT_PATH),
+            LaunchPackedFormat::Squashfs,
+        )
+        .await?;
+        Ok(())
+    }
+
+    async fn mount_kernel_modules(&mut self) -> Result<()> {
+        if !fs::try_exists(ADDONS_MODULES_PATH).await? {
+            return Ok(());
+        }
+
+        let Some(platform_info) = PlatformInfo::new().ok() else {
+            return Ok(());
+        };
+
+        let kernel_release = platform_info.release().to_string_lossy().to_string();
+        let modules_path = format!("/newroot/lib/modules/{}", kernel_release);
+        fs::create_dir_all(&modules_path).await?;
+        Mount::builder()
+            .fstype(FilesystemType::Manual("none"))
+            .flags(MountFlags::BIND | MountFlags::RDONLY)
+            .mount(ADDONS_MODULES_PATH, modules_path)?;
+        Ok(())
+    }
+
     async fn create_dir(&mut self, path: &str, mode: Option<u32>) -> Result<()> {
         let path = Path::new(path);
         if !path.is_dir() {
@@ -169,13 +222,14 @@ impl GuestInit {
         path: &str,
         data: &str,
         flags: Option<MountFlags>,
+        source: Option<&str>,
     ) -> Result<()> {
         trace!("mounting kernel fs {} to {}", fstype, path);
         Mount::builder()
             .fstype(FilesystemType::Manual(fstype))
             .flags(MountFlags::NOEXEC | MountFlags::NOSUID | flags.unwrap_or(MountFlags::empty()))
             .data(data)
-            .mount(fstype, path)?;
+            .mount(source.unwrap_or(fstype), path)?;
         Ok(())
     }
 
@@ -438,7 +492,12 @@ impl GuestInit {
         Ok(())
     }
 
-    async fn run(&mut self, config: &Config, launch: &LaunchInfo, idm: IdmClient) -> Result<()> {
+    async fn run(
+        &mut self,
+        config: &Config,
+        launch: &LaunchInfo,
+        idm: IdmInternalClient,
+    ) -> Result<()> {
         let mut cmd = match config.cmd() {
             None => vec![],
             Some(value) => value.clone(),
@@ -473,7 +532,7 @@ impl GuestInit {
             env.insert("TERM".to_string(), "xterm".to_string());
         }
 
-        let path = GuestInit::resolve_executable(&env, path.into())?;
+        let path = resolve_executable(&env, path.into())?;
         let Some(file_name) = path.file_name() else {
             return Err(anyhow!("cannot get file name of command path"));
         };
@@ -531,27 +590,6 @@ impl GuestInit {
         map
     }
 
-    fn resolve_executable(env: &HashMap<String, String>, path: PathBuf) -> Result<PathBuf> {
-        if path.is_absolute() {
-            return Ok(path);
-        }
-
-        if path.is_file() {
-            return Ok(path.absolutize()?.to_path_buf());
-        }
-
-        if let Some(path_var) = env.get("PATH") {
-            for item in path_var.split(':') {
-                let mut exe_path: PathBuf = item.into();
-                exe_path.push(&path);
-                if exe_path.is_file() {
-                    return Ok(exe_path);
-                }
-            }
-        }
-        Ok(path)
-    }
-
     fn env_list(env: HashMap<String, String>) -> Vec<String> {
         env.iter()
             .map(|(key, value)| format!("{}={}", key, value))
@@ -560,7 +598,7 @@ impl GuestInit {
 
     async fn fork_and_exec(
         &mut self,
-        idm: IdmClient,
+        idm: IdmInternalClient,
         cgroup: Cgroup,
         working_dir: String,
         path: CString,
@@ -596,9 +634,35 @@ impl GuestInit {
         Ok(())
     }
 
-    async fn background(&mut self, idm: IdmClient, cgroup: Cgroup, executed: Pid) -> Result<()> {
+    async fn background(
+        &mut self,
+        idm: IdmInternalClient,
+        cgroup: Cgroup,
+        executed: Pid,
+    ) -> Result<()> {
         let mut background = GuestBackground::new(idm, cgroup, executed).await?;
         background.run().await?;
         Ok(())
     }
 }
+
+pub fn resolve_executable(env: &HashMap<String, String>, path: PathBuf) -> Result<PathBuf> {
+    if path.is_absolute() {
+        return Ok(path);
+    }
+
+    if path.is_file() {
+        return Ok(path.absolutize()?.to_path_buf());
+    }
+
+    if let Some(path_var) = env.get("PATH") {
+        for item in path_var.split(':') {
+            let mut exe_path: PathBuf = item.into();
+            exe_path.push(&path);
+            if exe_path.is_file() {
+                return Ok(exe_path);
+            }
+        }
+    }
+    Ok(path)
+}

crates/guest/src/lib.rs

@@ -6,6 +6,7 @@ use xenstore::{XsdClient, XsdInterface};
 
 pub mod background;
 pub mod childwait;
+pub mod exec;
 pub mod init;
 pub mod metrics;
 

crates/guest/src/metrics.rs

@@ -1,7 +1,7 @@
 use std::{ops::Add, path::Path};
 
 use anyhow::Result;
-use krata::idm::protocol::{IdmMetricFormat, IdmMetricNode};
+use krata::idm::internal::{MetricFormat, MetricNode};
 use sysinfo::Process;
 
 pub struct MetricsCollector {}
@@ -11,9 +11,9 @@ impl MetricsCollector {
         Ok(MetricsCollector {})
     }
 
-    pub fn collect(&self) -> Result<IdmMetricNode> {
+    pub fn collect(&self) -> Result<MetricNode> {
         let mut sysinfo = sysinfo::System::new();
-        Ok(IdmMetricNode::structural(
+        Ok(MetricNode::structural(
             "guest",
             vec![
                 self.collect_system(&mut sysinfo)?,
@@ -22,22 +22,22 @@ impl MetricsCollector {
         ))
     }
 
-    fn collect_system(&self, sysinfo: &mut sysinfo::System) -> Result<IdmMetricNode> {
+    fn collect_system(&self, sysinfo: &mut sysinfo::System) -> Result<MetricNode> {
         sysinfo.refresh_memory();
-        Ok(IdmMetricNode::structural(
+        Ok(MetricNode::structural(
             "system",
-            vec![IdmMetricNode::structural(
+            vec![MetricNode::structural(
                 "memory",
                 vec![
-                    IdmMetricNode::value("total", sysinfo.total_memory(), IdmMetricFormat::Bytes),
-                    IdmMetricNode::value("used", sysinfo.used_memory(), IdmMetricFormat::Bytes),
-                    IdmMetricNode::value("free", sysinfo.free_memory(), IdmMetricFormat::Bytes),
+                    MetricNode::value("total", sysinfo.total_memory(), MetricFormat::Bytes),
+                    MetricNode::value("used", sysinfo.used_memory(), MetricFormat::Bytes),
+                    MetricNode::value("free", sysinfo.free_memory(), MetricFormat::Bytes),
                 ],
             )],
         ))
     }
 
-    fn collect_processes(&self, sysinfo: &mut sysinfo::System) -> Result<IdmMetricNode> {
+    fn collect_processes(&self, sysinfo: &mut sysinfo::System) -> Result<MetricNode> {
         sysinfo.refresh_processes();
         let mut processes = Vec::new();
         let mut sysinfo_processes = sysinfo.processes().values().collect::<Vec<_>>();
@@ -48,71 +48,68 @@ impl MetricsCollector {
             }
             processes.push(MetricsCollector::process_node(process)?);
         }
-        Ok(IdmMetricNode::structural("process", processes))
+        Ok(MetricNode::structural("process", processes))
     }
 
-    fn process_node(process: &Process) -> Result<IdmMetricNode> {
+    fn process_node(process: &Process) -> Result<MetricNode> {
         let mut metrics = vec![];
 
         if let Some(parent) = process.parent() {
-            metrics.push(IdmMetricNode::value(
+            metrics.push(MetricNode::value(
                 "parent",
                 parent.as_u32() as u64,
-                IdmMetricFormat::Integer,
+                MetricFormat::Integer,
             ));
         }
 
         if let Some(exe) = process.exe().and_then(path_as_str) {
-            metrics.push(IdmMetricNode::raw_value("executable", exe));
+            metrics.push(MetricNode::raw_value("executable", exe));
         }
 
         if let Some(working_directory) = process.cwd().and_then(path_as_str) {
-            metrics.push(IdmMetricNode::raw_value("cwd", working_directory));
+            metrics.push(MetricNode::raw_value("cwd", working_directory));
         }
 
         let cmdline = process.cmd().to_vec();
-        metrics.push(IdmMetricNode::raw_value("cmdline", cmdline));
-        metrics.push(IdmMetricNode::structural(
+        metrics.push(MetricNode::raw_value("cmdline", cmdline));
+        metrics.push(MetricNode::structural(
             "memory",
             vec![
-                IdmMetricNode::value("resident", process.memory(), IdmMetricFormat::Bytes),
-                IdmMetricNode::value("virtual", process.virtual_memory(), IdmMetricFormat::Bytes),
+                MetricNode::value("resident", process.memory(), MetricFormat::Bytes),
+                MetricNode::value("virtual", process.virtual_memory(), MetricFormat::Bytes),
             ],
         ));
 
-        metrics.push(IdmMetricNode::value(
+        metrics.push(MetricNode::value(
             "lifetime",
             process.run_time(),
-            IdmMetricFormat::DurationSeconds,
+            MetricFormat::DurationSeconds,
         ));
-        metrics.push(IdmMetricNode::value(
+        metrics.push(MetricNode::value(
             "uid",
             process.user_id().map(|x| (*x).add(0)).unwrap_or(0) as f64,
-            IdmMetricFormat::Integer,
+            MetricFormat::Integer,
         ));
-        metrics.push(IdmMetricNode::value(
+        metrics.push(MetricNode::value(
             "gid",
             process.group_id().map(|x| (*x).add(0)).unwrap_or(0) as f64,
-            IdmMetricFormat::Integer,
+            MetricFormat::Integer,
         ));
-        metrics.push(IdmMetricNode::value(
+        metrics.push(MetricNode::value(
             "euid",
             process
                 .effective_user_id()
                 .map(|x| (*x).add(0))
                 .unwrap_or(0) as f64,
-            IdmMetricFormat::Integer,
+            MetricFormat::Integer,
         ));
-        metrics.push(IdmMetricNode::value(
+        metrics.push(MetricNode::value(
             "egid",
             process.effective_group_id().map(|x| x.add(0)).unwrap_or(0) as f64,
-            IdmMetricFormat::Integer,
+            MetricFormat::Integer,
         ));
 
-        Ok(IdmMetricNode::structural(
-            process.pid().to_string(),
-            metrics,
-        ))
+        Ok(MetricNode::structural(process.pid().to_string(), metrics))
     }
 }
 

crates/krata/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata"
-description = "Client library and common services for the krata hypervisor."
+description = "Client library and common services for the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true

crates/krata/build.rs

@@ -6,12 +6,20 @@ fn main() -> Result<()> {
         .descriptor_pool("crate::DESCRIPTOR_POOL")
         .configure(
             &mut config,
-            &["proto/krata/v1/control.proto", "proto/krata/bus/idm.proto"],
+            &[
+                "proto/krata/v1/control.proto",
+                "proto/krata/idm/transport.proto",
+                "proto/krata/idm/internal.proto",
+            ],
             &["proto/"],
         )?;
     tonic_build::configure().compile_with_config(
         config,
-        &["proto/krata/v1/control.proto", "proto/krata/bus/idm.proto"],
+        &[
+            "proto/krata/v1/control.proto",
+            "proto/krata/idm/transport.proto",
+            "proto/krata/idm/internal.proto",
+        ],
         &["proto/"],
     )?;
     Ok(())

crates/krata/proto/krata/bus/idm.proto

@@ -1,67 +0,0 @@
-syntax = "proto3";
-
-package krata.bus.idm;
-
-option java_multiple_files = true;
-option java_package = "dev.krata.proto.bus.idm";
-option java_outer_classname = "IdmProto";
-
-import "google/protobuf/struct.proto";
-
-message IdmPacket {
-    oneof content {
-        IdmEvent event = 1;
-        IdmRequest request = 2;
-        IdmResponse response = 3;
-    }
-}
-
-message IdmEvent {
-    oneof event {
-        IdmExitEvent exit = 1;
-    }
-}
-
-message IdmExitEvent {
-    int32 code = 1;
-}
-
-message IdmRequest {
-    uint64 id = 1;
-    oneof request {
-        IdmPingRequest ping = 2;
-        IdmMetricsRequest metrics = 3;
-    }
-}
-
-message IdmPingRequest {}
-
-message IdmMetricsRequest {}
-
-message IdmResponse {
-    uint64 id = 1;
-    oneof response {
-        IdmPingResponse ping = 2;
-        IdmMetricsResponse metrics = 3;
-    }
-}
-
-message IdmPingResponse {}
-
-message IdmMetricsResponse {
-    IdmMetricNode root = 1;
-}
-
-message IdmMetricNode {
-    string name = 1;
-    google.protobuf.Value value = 2;
-    IdmMetricFormat format = 3;
-    repeated IdmMetricNode children = 4;
-}
-
-enum IdmMetricFormat {
-    IDM_METRIC_FORMAT_UNKNOWN = 0;
-    IDM_METRIC_FORMAT_BYTES = 1;
-    IDM_METRIC_FORMAT_INTEGER = 2;
-    IDM_METRIC_FORMAT_DURATION_SECONDS = 3;
-}

crates/krata/proto/krata/idm/internal.proto

@@ -0,0 +1,89 @@
+syntax = "proto3";
+
+package krata.idm.internal;
+
+option java_multiple_files = true;
+option java_package = "dev.krata.proto.idm.internal";
+option java_outer_classname = "IdmInternalProto";
+
+import "google/protobuf/struct.proto";
+
+message ExitEvent {
+    int32 code = 1;
+}
+
+message PingRequest {}
+
+message PingResponse {}
+
+message MetricsRequest {}
+
+message MetricsResponse {
+    MetricNode root = 1;
+}
+
+message MetricNode {
+    string name = 1;
+    google.protobuf.Value value = 2;
+    MetricFormat format = 3;
+    repeated MetricNode children = 4;
+}
+
+enum MetricFormat {
+    METRIC_FORMAT_UNKNOWN = 0;
+    METRIC_FORMAT_BYTES = 1;
+    METRIC_FORMAT_INTEGER = 2;
+    METRIC_FORMAT_DURATION_SECONDS = 3;
+}
+
+message ExecEnvVar {
+    string key = 1;
+    string value = 2;
+}
+
+message ExecStreamRequestStart {
+    repeated ExecEnvVar environment = 1;
+    repeated string command = 2;
+    string working_directory = 3;
+}
+
+message ExecStreamRequestStdin {
+    bytes data = 1;
+}
+
+message ExecStreamRequestUpdate {
+    oneof update {
+        ExecStreamRequestStart start = 1;
+        ExecStreamRequestStdin stdin = 2;
+    }
+}
+
+message ExecStreamResponseUpdate {
+    bool exited = 1;
+    string error = 2;
+    int32 exit_code = 3;
+    bytes stdout = 4;
+    bytes stderr = 5;
+}
+
+message Event {
+    oneof event {
+        ExitEvent exit = 1;
+    }
+}
+
+message Request {
+    oneof request {
+        PingRequest ping = 1;
+        MetricsRequest metrics = 2;
+        ExecStreamRequestUpdate exec_stream = 3;
+    }
+}
+
+message Response {
+    oneof response {
+        PingResponse ping = 1;
+        MetricsResponse metrics = 2;
+        ExecStreamResponseUpdate exec_stream = 3;
+    }
+}

crates/krata/proto/krata/idm/transport.proto

@@ -0,0 +1,27 @@
+syntax = "proto3";
+
+package krata.idm.transport;
+
+option java_multiple_files = true;
+option java_package = "dev.krata.proto.idm.transport";
+option java_outer_classname = "IdmTransportProto";
+
+message IdmTransportPacket {
+    uint64 id = 1;
+    uint64 channel = 2;
+    IdmTransportPacketForm form = 3;
+    bytes data = 4;
+}
+
+enum IdmTransportPacketForm {
+    IDM_TRANSPORT_PACKET_FORM_UNKNOWN = 0;
+    IDM_TRANSPORT_PACKET_FORM_RAW = 1;
+    IDM_TRANSPORT_PACKET_FORM_EVENT = 2;
+    IDM_TRANSPORT_PACKET_FORM_REQUEST = 3;
+    IDM_TRANSPORT_PACKET_FORM_RESPONSE = 4;
+    IDM_TRANSPORT_PACKET_FORM_STREAM_REQUEST = 5;
+    IDM_TRANSPORT_PACKET_FORM_STREAM_REQUEST_UPDATE = 6;
+    IDM_TRANSPORT_PACKET_FORM_STREAM_RESPONSE_UPDATE = 7;
+    IDM_TRANSPORT_PACKET_FORM_STREAM_REQUEST_CLOSED = 8;
+    IDM_TRANSPORT_PACKET_FORM_STREAM_RESPONSE_CLOSED = 9;
+}

crates/krata/proto/krata/v1/common.proto

@@ -17,10 +17,15 @@ message Guest {
 message GuestSpec {
     string name = 1;
     GuestImageSpec image = 2;
-    uint32 vcpus = 3;
-    uint64 mem = 4;
-    GuestTaskSpec task = 5;
-    repeated GuestSpecAnnotation annotations = 6;
+    // If not specified, defaults to the daemon default kernel.
+    GuestImageSpec kernel = 3;
+    // If not specified, defaults to the daemon default initrd.
+    GuestImageSpec initrd = 4;
+    uint32 vcpus = 5;
+    uint64 mem = 6;
+    GuestTaskSpec task = 7;
+    repeated GuestSpecAnnotation annotations = 8;
+    repeated GuestSpecDevice devices = 9;
 }
 
 message GuestImageSpec {
@@ -29,20 +34,23 @@ message GuestImageSpec {
     }
 }
 
-enum GuestOciImageFormat {
-    GUEST_OCI_IMAGE_FORMAT_UNKNOWN = 0;
-    GUEST_OCI_IMAGE_FORMAT_SQUASHFS = 1;
-    GUEST_OCI_IMAGE_FORMAT_EROFS = 2;
+enum OciImageFormat {
+    OCI_IMAGE_FORMAT_UNKNOWN = 0;
+    OCI_IMAGE_FORMAT_SQUASHFS = 1;
+    OCI_IMAGE_FORMAT_EROFS = 2;
+    // Tar format is not launchable, and is intended for kernel images.
+    OCI_IMAGE_FORMAT_TAR = 3;
 }
 
 message GuestOciImageSpec {
     string digest = 1;
-    GuestOciImageFormat format = 2;
+    OciImageFormat format = 2;
 }
 
 message GuestTaskSpec {
     repeated GuestTaskSpecEnvVar environment = 1;
     repeated string command = 2;
+    string working_directory = 3;
 }
 
 message GuestTaskSpecEnvVar {
@@ -55,12 +63,17 @@ message GuestSpecAnnotation {
     string value = 2;
 }
 
+message GuestSpecDevice {
+    string name = 1;
+}
+
 message GuestState {
     GuestStatus status = 1;
     GuestNetworkState network = 2;
     GuestExitInfo exit_info = 3;
     GuestErrorInfo error_info = 4;
-    uint32 domid = 5;
+    string host = 5;
+    uint32 domid = 6;
 }
 
 enum GuestStatus {

crates/krata/proto/krata/v1/control.proto

@@ -6,14 +6,19 @@ option java_multiple_files = true;
 option java_package = "dev.krata.proto.v1.control";
 option java_outer_classname = "ControlProto";
 
-import "krata/bus/idm.proto";
+import "krata/idm/transport.proto";
 import "krata/v1/common.proto";
 
 service ControlService {
+    rpc IdentifyHost(IdentifyHostRequest) returns (IdentifyHostReply);
+
     rpc CreateGuest(CreateGuestRequest) returns (CreateGuestReply);
     rpc DestroyGuest(DestroyGuestRequest) returns (DestroyGuestReply);
     rpc ResolveGuest(ResolveGuestRequest) returns (ResolveGuestReply);
     rpc ListGuests(ListGuestsRequest) returns (ListGuestsReply);
+    rpc ListDevices(ListDevicesRequest) returns (ListDevicesReply);
+
+    rpc ExecGuest(stream ExecGuestRequest) returns (stream ExecGuestReply);
 
     rpc ConsoleData(stream ConsoleDataRequest) returns (stream ConsoleDataReply);
     rpc ReadGuestMetrics(ReadGuestMetricsRequest) returns (ReadGuestMetricsReply);
@@ -22,6 +27,17 @@ service ControlService {
     rpc WatchEvents(WatchEventsRequest) returns (stream WatchEventsReply);
 
     rpc PullImage(PullImageRequest) returns (stream PullImageReply);
+
+    rpc GetHostCpuTopology(HostCpuTopologyRequest) returns (HostCpuTopologyReply);
+    rpc SetHostPowerManagementPolicy(HostPowerManagementPolicy) returns (HostPowerManagementPolicy);
+}
+
+message IdentifyHostRequest {}
+
+message IdentifyHostReply {
+    string host_uuid = 1;
+    uint32 host_domid = 2;
+    string krata_version = 3;
 }
 
 message CreateGuestRequest {
@@ -52,6 +68,20 @@ message ListGuestsReply {
     repeated krata.v1.common.Guest guests = 1;
 }
 
+message ExecGuestRequest {
+    string guest_id = 1;
+    krata.v1.common.GuestTaskSpec task = 2;
+    bytes data = 3;
+}
+
+message ExecGuestReply {
+    bool exited = 1;
+    string error = 2;
+    int32 exit_code = 3;
+    bytes stdout = 4;
+    bytes stderr = 5;
+}
+
 message ConsoleDataRequest {
     string guest_id = 1;
     bytes data = 2;
@@ -84,51 +114,119 @@ message ReadGuestMetricsReply {
 message SnoopIdmRequest {}
 
 message SnoopIdmReply {
-    uint32 from = 1;
-    uint32 to = 2;
-    krata.bus.idm.IdmPacket packet = 3;
+    string from = 1;
+    string to = 2;
+    krata.idm.transport.IdmTransportPacket packet = 3;
 }
 
-enum PullImageProgressLayerPhase {
-    PULL_IMAGE_PROGRESS_LAYER_PHASE_UNKNOWN = 0;
-    PULL_IMAGE_PROGRESS_LAYER_PHASE_WAITING = 1;
-    PULL_IMAGE_PROGRESS_LAYER_PHASE_DOWNLOADING = 2;
-    PULL_IMAGE_PROGRESS_LAYER_PHASE_DOWNLOADED = 3;
-    PULL_IMAGE_PROGRESS_LAYER_PHASE_EXTRACTING = 4;
-    PULL_IMAGE_PROGRESS_LAYER_PHASE_EXTRACTED = 5;
+message ImageProgress {
+    ImageProgressPhase phase = 1;
+    repeated ImageProgressLayer layers = 2;
+    ImageProgressIndication indication = 3;
 }
 
-message PullImageProgressLayer {
+enum ImageProgressPhase {
+    IMAGE_PROGRESS_PHASE_UNKNOWN = 0;
+    IMAGE_PROGRESS_PHASE_STARTED = 1;
+    IMAGE_PROGRESS_PHASE_RESOLVING = 2;
+    IMAGE_PROGRESS_PHASE_RESOLVED = 3;
+    IMAGE_PROGRESS_PHASE_CONFIG_DOWNLOAD = 4;
+    IMAGE_PROGRESS_PHASE_LAYER_DOWNLOAD = 5;
+    IMAGE_PROGRESS_PHASE_ASSEMBLE = 6;
+    IMAGE_PROGRESS_PHASE_PACK = 7;
+    IMAGE_PROGRESS_PHASE_COMPLETE = 8;
+}
+
+message ImageProgressLayer {
     string id = 1;
-    PullImageProgressLayerPhase phase = 2;
-    uint64 value = 3;
-    uint64 total = 4;
+    ImageProgressLayerPhase phase = 2;
+    ImageProgressIndication indication = 3;
 }
 
-enum PullImageProgressPhase {
-    PULL_IMAGE_PROGRESS_PHASE_UNKNOWN = 0;
-    PULL_IMAGE_PROGRESS_PHASE_RESOLVING = 1;
-    PULL_IMAGE_PROGRESS_PHASE_RESOLVED = 2;
-    PULL_IMAGE_PROGRESS_PHASE_CONFIG_ACQUIRE = 3;
-    PULL_IMAGE_PROGRESS_PHASE_LAYER_ACQUIRE = 4;
-    PULL_IMAGE_PROGRESS_PHASE_PACKING = 5;
-    PULL_IMAGE_PROGRESS_PHASE_COMPLETE = 6;
+enum ImageProgressLayerPhase {
+    IMAGE_PROGRESS_LAYER_PHASE_UNKNOWN = 0;
+    IMAGE_PROGRESS_LAYER_PHASE_WAITING = 1;
+    IMAGE_PROGRESS_LAYER_PHASE_DOWNLOADING = 2;
+    IMAGE_PROGRESS_LAYER_PHASE_DOWNLOADED = 3;
+    IMAGE_PROGRESS_LAYER_PHASE_EXTRACTING = 4;
+    IMAGE_PROGRESS_LAYER_PHASE_EXTRACTED = 5;
 }
 
-message PullImageProgress {
-    PullImageProgressPhase phase = 1;
-    repeated PullImageProgressLayer layers = 2;
-    uint64 value = 3;
-    uint64 total = 4;
+message ImageProgressIndication {
+    oneof indication {
+        ImageProgressIndicationBar bar = 1;
+        ImageProgressIndicationSpinner spinner = 2;
+        ImageProgressIndicationHidden hidden = 3;
+        ImageProgressIndicationCompleted completed = 4;
+    }
+}
+
+message ImageProgressIndicationBar {
+    string message = 1;
+    uint64 current = 2;
+    uint64 total = 3;
+    bool is_bytes = 4;
+}
+
+message ImageProgressIndicationSpinner {
+    string message = 1;
+}
+
+message ImageProgressIndicationHidden {}
+
+message ImageProgressIndicationCompleted {
+    string message = 1;
+    uint64 total = 2;
+    bool is_bytes = 3;
 }
 
 message PullImageRequest {
     string image = 1;
-    krata.v1.common.GuestOciImageFormat format = 2;
+    krata.v1.common.OciImageFormat format = 2;
+    bool overwrite_cache = 3;
 }
 
 message PullImageReply {
-    PullImageProgress progress = 1;
+    ImageProgress progress = 1;
     string digest = 2;
-    krata.v1.common.GuestOciImageFormat format = 3;
+    krata.v1.common.OciImageFormat format = 3;
+}
+
+message DeviceInfo {
+    string name = 1;
+    bool claimed = 2;
+    string owner = 3;
+}
+
+message ListDevicesRequest {}
+
+message ListDevicesReply {
+    repeated DeviceInfo devices = 1;
+}
+
+enum HostCpuTopologyClass {
+    CPU_CLASS_STANDARD = 0;
+    CPU_CLASS_PERFORMANCE = 1;
+    CPU_CLASS_EFFICIENCY = 2;
+}
+
+message HostCpuTopologyInfo {
+    uint32 core = 1;
+    uint32 socket = 2;
+    uint32 node = 3;
+    uint32 thread = 4;
+    HostCpuTopologyClass class = 5;
+}
+
+message HostCpuTopologyRequest {}
+
+message HostCpuTopologyReply {
+    repeated HostCpuTopologyInfo cpus = 1;
+}
+
+message HostPowerManagementPolicyRequest {}
+
+message HostPowerManagementPolicy {
+    string scheduler = 1;
+    bool smt_awareness = 2;
 }

crates/krata/src/bus/mod.rs

@@ -1 +0,0 @@
-pub mod idm;

crates/krata/src/idm/client.rs

@@ -8,10 +8,6 @@ use std::{
     time::Duration,
 };
 
-use super::protocol::{
-    idm_packet::Content, idm_request::Request, idm_response::Response, IdmEvent, IdmPacket,
-    IdmRequest, IdmResponse,
-};
 use anyhow::{anyhow, Result};
 use log::{debug, error};
 use nix::sys::termios::{cfmakeraw, tcgetattr, tcsetattr, SetArg};
@@ -22,14 +18,23 @@ use tokio::{
     select,
     sync::{
         broadcast,
-        mpsc::{channel, Receiver, Sender},
+        mpsc::{self, Receiver, Sender},
         oneshot, Mutex,
     },
     task::JoinHandle,
     time::timeout,
 };
 
-type RequestMap = Arc<Mutex<HashMap<u64, oneshot::Sender<IdmResponse>>>>;
+use super::{
+    internal,
+    serialize::{IdmRequest, IdmSerializable},
+    transport::{IdmTransportPacket, IdmTransportPacketForm},
+};
+
+type OneshotRequestMap<R> = Arc<Mutex<HashMap<u64, oneshot::Sender<<R as IdmRequest>::Response>>>>;
+type StreamRequestMap<R> = Arc<Mutex<HashMap<u64, Sender<<R as IdmRequest>::Response>>>>;
+type StreamRequestUpdateMap<R> = Arc<Mutex<HashMap<u64, mpsc::Sender<R>>>>;
+pub type IdmInternalClient = IdmClient<internal::Request, internal::Event>;
 
 const IDM_PACKET_QUEUE_LEN: usize = 100;
 const IDM_REQUEST_TIMEOUT_SECS: u64 = 10;
@@ -37,8 +42,8 @@ const IDM_PACKET_MAX_SIZE: usize = 20 * 1024 * 1024;
 
 #[async_trait::async_trait]
 pub trait IdmBackend: Send {
-    async fn recv(&mut self) -> Result<IdmPacket>;
-    async fn send(&mut self, packet: IdmPacket) -> Result<()>;
+    async fn recv(&mut self) -> Result<IdmTransportPacket>;
+    async fn send(&mut self, packet: IdmTransportPacket) -> Result<()>;
 }
 
 pub struct IdmFileBackend {
@@ -66,30 +71,30 @@ impl IdmFileBackend {
 
 #[async_trait::async_trait]
 impl IdmBackend for IdmFileBackend {
-    async fn recv(&mut self) -> Result<IdmPacket> {
+    async fn recv(&mut self) -> Result<IdmTransportPacket> {
         let mut fd = self.read_fd.lock().await;
         let mut guard = fd.readable_mut().await?;
         let b1 = guard.get_inner_mut().read_u8().await?;
         if b1 != 0xff {
-            return Ok(IdmPacket::default());
+            return Ok(IdmTransportPacket::default());
         }
         let b2 = guard.get_inner_mut().read_u8().await?;
         if b2 != 0xff {
-            return Ok(IdmPacket::default());
+            return Ok(IdmTransportPacket::default());
         }
         let size = guard.get_inner_mut().read_u32_le().await?;
         if size == 0 {
-            return Ok(IdmPacket::default());
+            return Ok(IdmTransportPacket::default());
         }
         let mut buffer = vec![0u8; size as usize];
         guard.get_inner_mut().read_exact(&mut buffer).await?;
-        match IdmPacket::decode(buffer.as_slice()) {
+        match IdmTransportPacket::decode(buffer.as_slice()) {
             Ok(packet) => Ok(packet),
             Err(error) => Err(anyhow!("received invalid idm packet: {}", error)),
         }
     }
 
-    async fn send(&mut self, packet: IdmPacket) -> Result<()> {
+    async fn send(&mut self, packet: IdmTransportPacket) -> Result<()> {
         let mut file = self.write.lock().await;
         let data = packet.encode_to_vec();
         file.write_all(&[0xff, 0xff]).await?;
@@ -100,16 +105,19 @@ impl IdmBackend for IdmFileBackend {
 }
 
 #[derive(Clone)]
-pub struct IdmClient {
-    request_backend_sender: broadcast::Sender<IdmRequest>,
+pub struct IdmClient<R: IdmRequest, E: IdmSerializable> {
+    channel: u64,
+    request_backend_sender: broadcast::Sender<(u64, R)>,
+    request_stream_backend_sender: broadcast::Sender<IdmClientStreamResponseHandle<R>>,
     next_request_id: Arc<Mutex<u64>>,
-    event_receiver_sender: broadcast::Sender<IdmEvent>,
-    tx_sender: Sender<IdmPacket>,
-    requests: RequestMap,
+    event_receiver_sender: broadcast::Sender<E>,
+    tx_sender: Sender<IdmTransportPacket>,
+    requests: OneshotRequestMap<R>,
+    request_streams: StreamRequestMap<R>,
     task: Arc<JoinHandle<()>>,
 }
 
-impl Drop for IdmClient {
+impl<R: IdmRequest, E: IdmSerializable> Drop for IdmClient<R, E> {
     fn drop(&mut self) {
         if Arc::strong_count(&self.task) <= 1 {
             self.task.abort();
@@ -117,21 +125,122 @@ impl Drop for IdmClient {
     }
 }
 
-impl IdmClient {
-    pub async fn new(backend: Box<dyn IdmBackend>) -> Result<IdmClient> {
+pub struct IdmClientStreamRequestHandle<R: IdmRequest, E: IdmSerializable> {
+    pub id: u64,
+    pub receiver: Receiver<R::Response>,
+    pub client: IdmClient<R, E>,
+}
+
+impl<R: IdmRequest, E: IdmSerializable> IdmClientStreamRequestHandle<R, E> {
+    pub async fn update(&self, request: R) -> Result<()> {
+        self.client
+            .tx_sender
+            .send(IdmTransportPacket {
+                id: self.id,
+                channel: self.client.channel,
+                form: IdmTransportPacketForm::StreamRequestUpdate.into(),
+                data: request.encode()?,
+            })
+            .await?;
+        Ok(())
+    }
+}
+
+impl<R: IdmRequest, E: IdmSerializable> Drop for IdmClientStreamRequestHandle<R, E> {
+    fn drop(&mut self) {
+        let id = self.id;
+        let client = self.client.clone();
+        tokio::task::spawn(async move {
+            let _ = client
+                .tx_sender
+                .send(IdmTransportPacket {
+                    id,
+                    channel: client.channel,
+                    form: IdmTransportPacketForm::StreamRequestClosed.into(),
+                    data: vec![],
+                })
+                .await;
+        });
+    }
+}
+
+#[derive(Clone)]
+pub struct IdmClientStreamResponseHandle<R: IdmRequest> {
+    pub initial: R,
+    pub id: u64,
+    channel: u64,
+    tx_sender: Sender<IdmTransportPacket>,
+    receiver: Arc<Mutex<Option<Receiver<R>>>>,
+}
+
+impl<R: IdmRequest> IdmClientStreamResponseHandle<R> {
+    pub async fn respond(&self, response: R::Response) -> Result<()> {
+        self.tx_sender
+            .send(IdmTransportPacket {
+                id: self.id,
+                channel: self.channel,
+                form: IdmTransportPacketForm::StreamResponseUpdate.into(),
+                data: response.encode()?,
+            })
+            .await?;
+        Ok(())
+    }
+
+    pub async fn take(&self) -> Result<Receiver<R>> {
+        let mut guard = self.receiver.lock().await;
+        let Some(receiver) = (*guard).take() else {
+            return Err(anyhow!("request has already been claimed!"));
+        };
+        Ok(receiver)
+    }
+}
+
+impl<R: IdmRequest> Drop for IdmClientStreamResponseHandle<R> {
+    fn drop(&mut self) {
+        if Arc::strong_count(&self.receiver) <= 1 {
+            let id = self.id;
+            let channel = self.channel;
+            let tx_sender = self.tx_sender.clone();
+            tokio::task::spawn(async move {
+                let _ = tx_sender
+                    .send(IdmTransportPacket {
+                        id,
+                        channel,
+                        form: IdmTransportPacketForm::StreamResponseClosed.into(),
+                        data: vec![],
+                    })
+                    .await;
+            });
+        }
+    }
+}
+
+impl<R: IdmRequest, E: IdmSerializable> IdmClient<R, E> {
+    pub async fn new(channel: u64, backend: Box<dyn IdmBackend>) -> Result<Self> {
         let requests = Arc::new(Mutex::new(HashMap::new()));
+        let request_streams = Arc::new(Mutex::new(HashMap::new()));
+        let request_update_streams = Arc::new(Mutex::new(HashMap::new()));
         let (event_sender, event_receiver) = broadcast::channel(IDM_PACKET_QUEUE_LEN);
         let (internal_request_backend_sender, _) = broadcast::channel(IDM_PACKET_QUEUE_LEN);
-        let (tx_sender, tx_receiver) = channel(IDM_PACKET_QUEUE_LEN);
+        let (internal_request_stream_backend_sender, _) = broadcast::channel(IDM_PACKET_QUEUE_LEN);
+        let (tx_sender, tx_receiver) = mpsc::channel(IDM_PACKET_QUEUE_LEN);
         let backend_event_sender = event_sender.clone();
         let request_backend_sender = internal_request_backend_sender.clone();
+        let request_stream_backend_sender = internal_request_stream_backend_sender.clone();
         let requests_for_client = requests.clone();
+        let request_streams_for_client = request_streams.clone();
+        let tx_sender_for_client = tx_sender.clone();
         let task = tokio::task::spawn(async move {
             if let Err(error) = IdmClient::process(
                 backend,
+                channel,
+                tx_sender,
                 backend_event_sender,
                 requests,
+                request_streams,
+                request_update_streams,
                 internal_request_backend_sender,
+                internal_request_stream_backend_sender,
                 event_receiver,
                 tx_receiver,
             )
@@ -141,16 +250,19 @@ impl IdmClient {
             }
         });
         Ok(IdmClient {
+            channel,
             next_request_id: Arc::new(Mutex::new(0)),
             event_receiver_sender: event_sender.clone(),
             request_backend_sender,
+            request_stream_backend_sender,
             requests: requests_for_client,
-            tx_sender,
+            request_streams: request_streams_for_client,
+            tx_sender: tx_sender_for_client,
             task: Arc::new(task),
         })
     }
 
-    pub async fn open<P: AsRef<Path>>(path: P) -> Result<IdmClient> {
+    pub async fn open<P: AsRef<Path>>(channel: u64, path: P) -> Result<Self> {
         let read_file = File::options()
             .read(true)
             .write(false)
@@ -164,39 +276,54 @@ impl IdmClient {
             .open(path)
             .await?;
         let backend = IdmFileBackend::new(read_file, write_file).await?;
-        IdmClient::new(Box::new(backend) as Box<dyn IdmBackend>).await
+        IdmClient::new(channel, Box::new(backend) as Box<dyn IdmBackend>).await
     }
 
-    pub async fn emit(&self, event: IdmEvent) -> Result<()> {
+    pub async fn emit<T: IdmSerializable>(&self, event: T) -> Result<()> {
+        let id = {
+            let mut guard = self.next_request_id.lock().await;
+            let req = *guard;
+            *guard = req.wrapping_add(1);
+            req
+        };
         self.tx_sender
-            .send(IdmPacket {
-                content: Some(Content::Event(event)),
+            .send(IdmTransportPacket {
+                id,
+                form: IdmTransportPacketForm::Event.into(),
+                channel: self.channel,
+                data: event.encode()?,
             })
             .await?;
         Ok(())
     }
 
-    pub async fn requests(&self) -> Result<broadcast::Receiver<IdmRequest>> {
+    pub async fn requests(&self) -> Result<broadcast::Receiver<(u64, R)>> {
         Ok(self.request_backend_sender.subscribe())
     }
 
-    pub async fn respond(&self, id: u64, response: Response) -> Result<()> {
-        let packet = IdmPacket {
-            content: Some(Content::Response(IdmResponse {
+    pub async fn request_streams(
+        &self,
+    ) -> Result<broadcast::Receiver<IdmClientStreamResponseHandle<R>>> {
+        Ok(self.request_stream_backend_sender.subscribe())
+    }
+
+    pub async fn respond<T: IdmSerializable>(&self, id: u64, response: T) -> Result<()> {
+        let packet = IdmTransportPacket {
             id,
-                response: Some(response),
-            })),
+            form: IdmTransportPacketForm::Response.into(),
+            channel: self.channel,
+            data: response.encode()?,
         };
         self.tx_sender.send(packet).await?;
         Ok(())
     }
 
-    pub async fn subscribe(&self) -> Result<broadcast::Receiver<IdmEvent>> {
+    pub async fn subscribe(&self) -> Result<broadcast::Receiver<E>> {
         Ok(self.event_receiver_sender.subscribe())
     }
 
-    pub async fn send(&self, request: Request) -> Result<Response> {
-        let (sender, receiver) = oneshot::channel::<IdmResponse>();
+    pub async fn send(&self, request: R) -> Result<R::Response> {
+        let (sender, receiver) = oneshot::channel::<R::Response>();
         let req = {
             let mut guard = self.next_request_id.lock().await;
             let req = *guard;
@@ -217,52 +344,135 @@ impl IdmClient {
             });
         });
         self.tx_sender
-            .send(IdmPacket {
-                content: Some(Content::Request(IdmRequest {
+            .send(IdmTransportPacket {
                 id: req,
-                    request: Some(request),
-                })),
+                channel: self.channel,
+                form: IdmTransportPacketForm::Request.into(),
+                data: request.encode()?,
             })
             .await?;
 
         let response = timeout(Duration::from_secs(IDM_REQUEST_TIMEOUT_SECS), receiver).await??;
         success.store(true, Ordering::Release);
-        if let Some(response) = response.response {
         Ok(response)
-        } else {
-            Err(anyhow!("response did not contain any content"))
-        }
     }
 
+    pub async fn send_stream(&self, request: R) -> Result<IdmClientStreamRequestHandle<R, E>> {
+        let (sender, receiver) = mpsc::channel::<R::Response>(100);
+        let req = {
+            let mut guard = self.next_request_id.lock().await;
+            let req = *guard;
+            *guard = req.wrapping_add(1);
+            req
+        };
+        let mut requests = self.request_streams.lock().await;
+        requests.insert(req, sender);
+        drop(requests);
+        self.tx_sender
+            .send(IdmTransportPacket {
+                id: req,
+                channel: self.channel,
+                form: IdmTransportPacketForm::StreamRequest.into(),
+                data: request.encode()?,
+            })
+            .await?;
+        Ok(IdmClientStreamRequestHandle {
+            id: req,
+            receiver,
+            client: self.clone(),
+        })
+    }
+
+    #[allow(clippy::too_many_arguments)]
     async fn process(
         mut backend: Box<dyn IdmBackend>,
-        event_sender: broadcast::Sender<IdmEvent>,
-        requests: RequestMap,
-        request_backend_sender: broadcast::Sender<IdmRequest>,
-        _event_receiver: broadcast::Receiver<IdmEvent>,
-        mut receiver: Receiver<IdmPacket>,
+        channel: u64,
+        tx_sender: Sender<IdmTransportPacket>,
+        event_sender: broadcast::Sender<E>,
+        requests: OneshotRequestMap<R>,
+        request_streams: StreamRequestMap<R>,
+        request_update_streams: StreamRequestUpdateMap<R>,
+        request_backend_sender: broadcast::Sender<(u64, R)>,
+        request_stream_backend_sender: broadcast::Sender<IdmClientStreamResponseHandle<R>>,
+        _event_receiver: broadcast::Receiver<E>,
+        mut receiver: Receiver<IdmTransportPacket>,
     ) -> Result<()> {
         loop {
             select! {
                 x = backend.recv() => match x {
                     Ok(packet) => {
-                        match packet.content {
-                            Some(Content::Event(event)) => {
+                        if packet.channel != channel {
+                            continue;
+                        }
+
+                        match packet.form() {
+                            IdmTransportPacketForm::Event => {
+                                if let Ok(event) = E::decode(&packet.data) {
                                     let _ = event_sender.send(event);
-                            },
-
-                            Some(Content::Request(request)) => {
-                                let _ = request_backend_sender.send(request);
-                            },
-
-                            Some(Content::Response(response)) => {
-                                let mut requests = requests.lock().await;
-                                if let Some(sender) = requests.remove(&response.id) {
-                                    drop(requests);
-                                    let _ = sender.send(response);
                                 }
                             },
 
+                            IdmTransportPacketForm::Request => {
+                                if let Ok(request) = R::decode(&packet.data) {
+                                    let _ = request_backend_sender.send((packet.id, request));
+                                }
+                            },
+
+                            IdmTransportPacketForm::Response => {
+                                let mut requests = requests.lock().await;
+                                if let Some(sender) = requests.remove(&packet.id) {
+                                    drop(requests);
+
+                                    if let Ok(response) = R::Response::decode(&packet.data) {
+                                        let _ = sender.send(response);
+                                    }
+                                }
+                            },
+
+                            IdmTransportPacketForm::StreamRequest => {
+                                if let Ok(request) = R::decode(&packet.data) {
+                                    let mut update_streams = request_update_streams.lock().await;
+                                    let (sender, receiver) = mpsc::channel(100);
+                                    update_streams.insert(packet.id, sender.clone());
+                                    let handle = IdmClientStreamResponseHandle {
+                                        initial: request,
+                                        id: packet.id,
+                                        channel,
+                                        tx_sender: tx_sender.clone(),
+                                        receiver: Arc::new(Mutex::new(Some(receiver))),
+                                    };
+                                    let _ = request_stream_backend_sender.send(handle);
+                                }
+                            }
+
+                            IdmTransportPacketForm::StreamRequestUpdate => {
+                                if let Ok(request) = R::decode(&packet.data) {
+                                    let mut update_streams = request_update_streams.lock().await;
+                                    if let Some(stream) = update_streams.get_mut(&packet.id) {
+                                        let _ = stream.try_send(request);
+                                    }
+                                }
+                            }
+
+                            IdmTransportPacketForm::StreamRequestClosed => {
+                                let mut update_streams = request_update_streams.lock().await;
+                                update_streams.remove(&packet.id);
+                            }
+
+                            IdmTransportPacketForm::StreamResponseUpdate => {
+                                let requests = request_streams.lock().await;
+                                if let Some(sender) = requests.get(&packet.id) {
+                                    if let Ok(response) = R::Response::decode(&packet.data) {
+                                        let _ = sender.try_send(response);
+                                    }
+                                }
+                            }
+
+                            IdmTransportPacketForm::StreamResponseClosed => {
+                                let mut requests = request_streams.lock().await;
+                                requests.remove(&packet.id);
+                            }
+
                             _ => {},
                         }
                     },

crates/krata/src/idm/internal.rs

@@ -1,26 +1,66 @@
+use anyhow::Result;
+use prost::Message;
 use prost_types::{ListValue, Value};
 
-include!(concat!(env!("OUT_DIR"), "/krata.bus.idm.rs"));
+use super::serialize::{IdmRequest, IdmSerializable};
+
+include!(concat!(env!("OUT_DIR"), "/krata.idm.internal.rs"));
+
+pub const INTERNAL_IDM_CHANNEL: u64 = 0;
+
+impl IdmSerializable for Event {
+    fn encode(&self) -> Result<Vec<u8>> {
+        Ok(self.encode_to_vec())
+    }
+
+    fn decode(bytes: &[u8]) -> Result<Self> {
+        Ok(<Self as prost::Message>::decode(bytes)?)
+    }
+}
+
+impl IdmSerializable for Request {
+    fn encode(&self) -> Result<Vec<u8>> {
+        Ok(self.encode_to_vec())
+    }
+
+    fn decode(bytes: &[u8]) -> Result<Self> {
+        Ok(<Self as prost::Message>::decode(bytes)?)
+    }
+}
+
+impl IdmRequest for Request {
+    type Response = Response;
+}
+
+impl IdmSerializable for Response {
+    fn encode(&self) -> Result<Vec<u8>> {
+        Ok(self.encode_to_vec())
+    }
+
+    fn decode(bytes: &[u8]) -> Result<Self> {
+        Ok(<Self as prost::Message>::decode(bytes)?)
+    }
+}
 
 pub trait AsIdmMetricValue {
     fn as_metric_value(&self) -> Value;
 }
 
-impl IdmMetricNode {
-    pub fn structural<N: AsRef<str>>(name: N, children: Vec<IdmMetricNode>) -> IdmMetricNode {
-        IdmMetricNode {
+impl MetricNode {
+    pub fn structural<N: AsRef<str>>(name: N, children: Vec<MetricNode>) -> MetricNode {
+        MetricNode {
             name: name.as_ref().to_string(),
             value: None,
-            format: IdmMetricFormat::Unknown.into(),
+            format: MetricFormat::Unknown.into(),
             children,
         }
     }
 
-    pub fn raw_value<N: AsRef<str>, V: AsIdmMetricValue>(name: N, value: V) -> IdmMetricNode {
-        IdmMetricNode {
+    pub fn raw_value<N: AsRef<str>, V: AsIdmMetricValue>(name: N, value: V) -> MetricNode {
+        MetricNode {
             name: name.as_ref().to_string(),
             value: Some(value.as_metric_value()),
-            format: IdmMetricFormat::Unknown.into(),
+            format: MetricFormat::Unknown.into(),
             children: vec![],
         }
     }
@@ -28,9 +68,9 @@ impl IdmMetricNode {
     pub fn value<N: AsRef<str>, V: AsIdmMetricValue>(
         name: N,
         value: V,
-        format: IdmMetricFormat,
-    ) -> IdmMetricNode {
-        IdmMetricNode {
+        format: MetricFormat,
+    ) -> MetricNode {
+        MetricNode {
             name: name.as_ref().to_string(),
             value: Some(value.as_metric_value()),
             format: format.into(),

crates/krata/src/idm/mod.rs

@@ -1,3 +1,5 @@
 #[cfg(unix)]
 pub mod client;
-pub use crate::bus::idm as protocol;
+pub mod internal;
+pub mod serialize;
+pub mod transport;

crates/krata/src/idm/serialize.rs

@@ -0,0 +1,10 @@
+use anyhow::Result;
+
+pub trait IdmSerializable: Sized + Clone + Send + Sync + 'static {
+    fn decode(bytes: &[u8]) -> Result<Self>;
+    fn encode(&self) -> Result<Vec<u8>>;
+}
+
+pub trait IdmRequest: IdmSerializable {
+    type Response: IdmSerializable;
+}

crates/krata/src/idm/transport.rs

@@ -0,0 +1 @@
+include!(concat!(env!("OUT_DIR"), "/krata.idm.transport.rs"));

crates/krata/src/lib.rs

@@ -1,7 +1,6 @@
 use once_cell::sync::Lazy;
 use prost_reflect::DescriptorPool;
 
-pub mod bus;
 pub mod v1;
 
 pub mod client;

crates/loopdev/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "krata-loopdev"
+description = "Loop device handling library for krata"
+license.workspace = true
+version.workspace = true
+homepage.workspace = true
+repository.workspace = true
+edition = "2021"
+resolver = "2"
+
+[lib]
+name = "krataloopdev"
+
+[dependencies]
+libc.workspace = true

crates/loopdev/src/lib.rs

@@ -0,0 +1,348 @@
+use libc::{c_int, ioctl};
+use std::{
+    fs::{File, OpenOptions},
+    io,
+    os::fd::{AsRawFd, IntoRawFd, RawFd},
+    os::unix::fs::MetadataExt,
+    path::{Path, PathBuf},
+};
+
+#[cfg(all(not(target_os = "android"), not(target_env = "musl")))]
+type IoctlRequest = libc::c_ulong;
+#[cfg(any(target_os = "android", target_env = "musl"))]
+type IoctlRequest = libc::c_int;
+
+const LOOP_CONTROL: &str = "/dev/loop-control";
+const LOOP_PREFIX: &str = "/dev/loop";
+
+/// Loop control interface IOCTLs.
+const LOOP_CTL_GET_FREE: IoctlRequest = 0x4C82;
+
+/// Loop device flags.
+const LO_FLAGS_READ_ONLY: u32 = 1;
+const LO_FLAGS_AUTOCLEAR: u32 = 4;
+const LO_FLAGS_PARTSCAN: u32 = 8;
+const LO_FLAGS_DIRECT_IO: u32 = 16;
+
+/// Loop device IOCTLs.
+const LOOP_SET_FD: IoctlRequest = 0x4C00;
+const LOOP_CLR_FD: IoctlRequest = 0x4C01;
+const LOOP_SET_STATUS64: IoctlRequest = 0x4C04;
+const LOOP_SET_CAPACITY: IoctlRequest = 0x4C07;
+const LOOP_SET_DIRECT_IO: IoctlRequest = 0x4C08;
+
+/// Interface which wraps a handle to the loop control device.
+#[derive(Debug)]
+pub struct LoopControl {
+    dev_file: File,
+}
+
+/// Translate ioctl results to errors if appropriate.
+fn translate_error(ret: i32) -> io::Result<i32> {
+    if ret < 0 {
+        Err(io::Error::last_os_error())
+    } else {
+        Ok(ret)
+    }
+}
+
+impl LoopControl {
+    /// Open the loop control device.
+    ///
+    /// # Errors
+    ///
+    /// Any errors from physically opening the loop control device are
+    /// bubbled up.
+    pub fn open() -> io::Result<Self> {
+        Ok(Self {
+            dev_file: OpenOptions::new()
+                .read(true)
+                .write(true)
+                .open(LOOP_CONTROL)?,
+        })
+    }
+
+    /// Requests the next available loop device from the kernel and opens it.
+    ///
+    /// # Examples
+    ///
+    /// ```no_run
+    /// use krataloopdev::LoopControl;
+    /// let lc = LoopControl::open().unwrap();
+    /// let ld = lc.next_free().unwrap();
+    /// println!("{}", ld.path().unwrap().display());
+    /// ```
+    ///
+    /// # Errors
+    ///
+    /// Any errors from opening the loop device are bubbled up.
+    pub fn next_free(&self) -> io::Result<LoopDevice> {
+        let dev_num = translate_error(unsafe {
+            ioctl(
+                self.dev_file.as_raw_fd() as c_int,
+                LOOP_CTL_GET_FREE as IoctlRequest,
+            )
+        })?;
+        LoopDevice::open(format!("{}{}", LOOP_PREFIX, dev_num))
+    }
+}
+
+/// Interface to a loop device itself, e.g. `/dev/loop0`.
+#[derive(Debug)]
+pub struct LoopDevice {
+    device: File,
+}
+
+impl AsRawFd for LoopDevice {
+    fn as_raw_fd(&self) -> RawFd {
+        self.device.as_raw_fd()
+    }
+}
+
+impl IntoRawFd for LoopDevice {
+    fn into_raw_fd(self) -> RawFd {
+        self.device.into_raw_fd()
+    }
+}
+
+impl LoopDevice {
+    /// Opens a loop device.
+    ///
+    /// # Errors
+    ///
+    /// Any errors from opening the underlying physical loop device are bubbled up.
+    pub fn open<P: AsRef<Path>>(dev: P) -> io::Result<Self> {
+        Ok(Self {
+            device: OpenOptions::new().read(true).write(true).open(dev)?,
+        })
+    }
+
+    /// Attach a loop device to a file with the given options.
+    pub fn with(&self) -> AttachOptions<'_> {
+        AttachOptions {
+            device: self,
+            info: LoopInfo64::default(),
+        }
+    }
+
+    /// Enables or disables Direct I/O mode.
+    pub fn set_direct_io(&self, direct_io: bool) -> io::Result<()> {
+        translate_error(unsafe {
+            ioctl(
+                self.device.as_raw_fd() as c_int,
+                LOOP_SET_DIRECT_IO as IoctlRequest,
+                if direct_io { 1 } else { 0 },
+            )
+        })?;
+        Ok(())
+    }
+
+    /// Attach the loop device to a fully-mapped file.
+    pub fn attach_file<P: AsRef<Path>>(&self, backing_file: P) -> io::Result<()> {
+        let info = LoopInfo64 {
+            ..Default::default()
+        };
+
+        Self::attach_with_loop_info(self, backing_file, info)
+    }
+
+    /// Attach the loop device to a file with `LoopInfo64`.
+    fn attach_with_loop_info(
+        &self,
+        backing_file: impl AsRef<Path>,
+        info: LoopInfo64,
+    ) -> io::Result<()> {
+        let write_access = (info.lo_flags & LO_FLAGS_READ_ONLY) == 0;
+        let bf = OpenOptions::new()
+            .read(true)
+            .write(write_access)
+            .open(backing_file)?;
+        self.attach_fd_with_loop_info(bf, info)
+    }
+
+    /// Attach the loop device to a file descriptor with `LoopInfo64`.
+    fn attach_fd_with_loop_info(&self, bf: impl AsRawFd, info: LoopInfo64) -> io::Result<()> {
+        translate_error(unsafe {
+            ioctl(
+                self.device.as_raw_fd() as c_int,
+                LOOP_SET_FD as IoctlRequest,
+                bf.as_raw_fd() as c_int,
+            )
+        })?;
+
+        let result = unsafe {
+            ioctl(
+                self.device.as_raw_fd() as c_int,
+                LOOP_SET_STATUS64 as IoctlRequest,
+                &info,
+            )
+        };
+
+        match translate_error(result) {
+            Err(err) => {
+                let _detach_err = self.detach();
+                Err(err)
+            }
+            Ok(_) => Ok(()),
+        }
+    }
+
+    /// Get the path for the loop device.
+    pub fn path(&self) -> Option<PathBuf> {
+        let mut p = PathBuf::from("/proc/self/fd");
+        p.push(self.device.as_raw_fd().to_string());
+        std::fs::read_link(&p).ok()
+    }
+
+    /// Detach a loop device.
+    pub fn detach(&self) -> io::Result<()> {
+        translate_error(unsafe {
+            ioctl(
+                self.device.as_raw_fd() as c_int,
+                LOOP_CLR_FD as IoctlRequest,
+                0,
+            )
+        })?;
+        Ok(())
+    }
+
+    /// Update a loop device's capacity.
+    pub fn set_capacity(&self) -> io::Result<()> {
+        translate_error(unsafe {
+            ioctl(
+                self.device.as_raw_fd() as c_int,
+                LOOP_SET_CAPACITY as IoctlRequest,
+                0,
+            )
+        })?;
+        Ok(())
+    }
+
+    /// Return the major device node number.
+    pub fn major(&self) -> io::Result<u32> {
+        self.device
+            .metadata()
+            .map(|m| unsafe { libc::major(m.rdev()) })
+    }
+
+    /// Return the minor device node number.
+    pub fn minor(&self) -> io::Result<u32> {
+        self.device
+            .metadata()
+            .map(|m| unsafe { libc::minor(m.rdev()) })
+    }
+}
+
+#[allow(dead_code)]
+#[derive(Clone)]
+pub struct LoopInfo64 {
+    lo_device: u64,
+    lo_inode: u64,
+    lo_rdevice: u64,
+    lo_offset: u64,
+    lo_sizelimit: u64,
+    lo_number: u32,
+    lo_encrypt_type: u32,
+    lo_encrypt_key_size: u32,
+    lo_flags: u32,
+    lo_file_name: [u8; 64],
+    lo_crypt_name: [u8; 64],
+    lo_encrypt_key: [u8; 32],
+    lo_init: [u64; 2],
+}
+
+impl Default for LoopInfo64 {
+    fn default() -> Self {
+        Self {
+            lo_device: 0,
+            lo_inode: 0,
+            lo_rdevice: 0,
+            lo_offset: 0,
+            lo_sizelimit: 0,
+            lo_number: 0,
+            lo_encrypt_type: 0,
+            lo_encrypt_key_size: 0,
+            lo_flags: 0,
+            lo_file_name: [0; 64],
+            lo_crypt_name: [0; 64],
+            lo_encrypt_key: [0; 32],
+            lo_init: [0, 2],
+        }
+    }
+}
+
+#[must_use]
+pub struct AttachOptions<'d> {
+    device: &'d LoopDevice,
+    info: LoopInfo64,
+}
+
+impl AttachOptions<'_> {
+    pub fn offset(mut self, offset: u64) -> Self {
+        self.info.lo_offset = offset;
+        self
+    }
+
+    pub fn size_limit(mut self, size_limit: u64) -> Self {
+        self.info.lo_sizelimit = size_limit;
+        self
+    }
+
+    pub fn read_only(mut self, read_only: bool) -> Self {
+        if read_only {
+            self.info.lo_flags |= LO_FLAGS_READ_ONLY;
+        } else {
+            self.info.lo_flags &= !LO_FLAGS_READ_ONLY;
+        }
+        self
+    }
+
+    pub fn autoclear(mut self, autoclear: bool) -> Self {
+        if autoclear {
+            self.info.lo_flags |= LO_FLAGS_AUTOCLEAR;
+        } else {
+            self.info.lo_flags &= !LO_FLAGS_AUTOCLEAR;
+        }
+        self
+    }
+
+    pub fn part_scan(mut self, part_scan: bool) -> Self {
+        if part_scan {
+            self.info.lo_flags |= LO_FLAGS_PARTSCAN;
+        } else {
+            self.info.lo_flags &= !LO_FLAGS_PARTSCAN;
+        }
+        self
+    }
+
+    pub fn set_direct_io(mut self, direct_io: bool) -> Self {
+        if direct_io {
+            self.info.lo_flags |= LO_FLAGS_DIRECT_IO;
+        } else {
+            self.info.lo_flags &= !LO_FLAGS_DIRECT_IO;
+        }
+        self
+    }
+
+    pub fn direct_io(&self) -> bool {
+        (self.info.lo_flags & LO_FLAGS_DIRECT_IO) == LO_FLAGS_DIRECT_IO
+    }
+
+    pub fn attach(&self, backing_file: impl AsRef<Path>) -> io::Result<()> {
+        self.device
+            .attach_with_loop_info(backing_file, self.info.clone())?;
+        if self.direct_io() {
+            self.device.set_direct_io(self.direct_io())?;
+        }
+        Ok(())
+    }
+
+    pub fn attach_fd(&self, backing_file_fd: impl AsRawFd) -> io::Result<()> {
+        self.device
+            .attach_fd_with_loop_info(backing_file_fd, self.info.clone())?;
+        if self.direct_io() {
+            self.device.set_direct_io(self.direct_io())?;
+        }
+        Ok(())
+    }
+}

crates/network/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-network"
-description = "Networking services for the krata hypervisor."
+description = "Networking services for the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true
@@ -16,7 +16,7 @@ clap = { workspace = true }
 env_logger = { workspace = true }
 etherparse = { workspace = true }
 futures = { workspace = true }
-krata = { path = "../krata", version = "^0.0.9" }
+krata = { path = "../krata", version = "^0.0.12" }
 krata-advmac = { workspace = true }
 libc = { workspace = true }
 log = { workspace = true }

crates/oci/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-oci"
-description = "OCI services for the krata hypervisor."
+description = "OCI services for the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true

crates/oci/examples/squashify.rs

@@ -5,10 +5,10 @@ use env_logger::Env;
 use krataoci::{
     name::ImageName,
     packer::{service::OciPackerService, OciPackedFormat},
-    progress::{OciProgress, OciProgressContext},
+    progress::OciProgressContext,
     registry::OciPlatform,
 };
-use tokio::{fs, sync::mpsc::channel};
+use tokio::fs;
 
 #[tokio::main]
 async fn main() -> Result<()> {
@@ -22,27 +22,22 @@ async fn main() -> Result<()> {
         fs::create_dir(&cache_dir).await?;
     }
 
-    let (sender, mut receiver) = channel::<OciProgress>(100);
+    let (context, mut receiver) = OciProgressContext::create();
     tokio::task::spawn(async move {
         loop {
-            let mut progresses = Vec::new();
-            let _ = receiver.recv_many(&mut progresses, 100).await;
-            let Some(progress) = progresses.last() else {
-                continue;
-            };
+            if (receiver.changed().await).is_err() {
+                break;
+            }
+            let progress = receiver.borrow_and_update();
             println!("phase {:?}", progress.phase);
             for (id, layer) in &progress.layers {
-                println!(
-                    "{} {:?} {} of {}",
-                    id, layer.phase, layer.value, layer.total
-                )
+                println!("{} {:?} {:?}", id, layer.phase, layer.indication,)
             }
         }
     });
-    let context = OciProgressContext::new(sender);
-    let service = OciPackerService::new(seed, &cache_dir, OciPlatform::current())?;
+    let service = OciPackerService::new(seed, &cache_dir, OciPlatform::current()).await?;
     let packed = service
-        .request(image.clone(), OciPackedFormat::Squashfs, context)
+        .request(image.clone(), OciPackedFormat::Squashfs, false, context)
         .await?;
     println!(
         "generated squashfs of {} to {}",

crates/oci/src/assemble.rs

@@ -1,22 +1,25 @@
-use crate::fetch::{OciImageFetcher, OciImageLayer, OciResolvedImage};
+use crate::fetch::{OciImageFetcher, OciImageLayer, OciImageLayerReader, OciResolvedImage};
 use crate::progress::OciBoundProgress;
+use crate::schema::OciSchema;
 use crate::vfs::{VfsNode, VfsTree};
 use anyhow::{anyhow, Result};
 use log::{debug, trace, warn};
-use oci_spec::image::{ImageConfiguration, ImageManifest};
+use oci_spec::image::{Descriptor, ImageConfiguration, ImageManifest};
+
 use std::path::{Path, PathBuf};
 use std::pin::Pin;
+use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
 use tokio::fs;
-use tokio::io::AsyncRead;
 use tokio_stream::StreamExt;
 use tokio_tar::{Archive, Entry};
 use uuid::Uuid;
 
 pub struct OciImageAssembled {
     pub digest: String,
-    pub manifest: ImageManifest,
-    pub config: ImageConfiguration,
+    pub descriptor: Descriptor,
+    pub manifest: OciSchema<ImageManifest>,
+    pub config: OciSchema<ImageConfiguration>,
     pub vfs: Arc<VfsTree>,
     pub tmp_dir: Option<PathBuf>,
 }
@@ -33,11 +36,12 @@ impl Drop for OciImageAssembled {
 
 pub struct OciImageAssembler {
     downloader: OciImageFetcher,
-    resolved: OciResolvedImage,
+    resolved: Option<OciResolvedImage>,
     progress: OciBoundProgress,
     work_dir: PathBuf,
     disk_dir: PathBuf,
     tmp_dir: Option<PathBuf>,
+    success: AtomicBool,
 }
 
 impl OciImageAssembler {
@@ -81,11 +85,12 @@ impl OciImageAssembler {
 
         Ok(OciImageAssembler {
             downloader,
-            resolved,
+            resolved: Some(resolved),
             progress,
             work_dir,
             disk_dir: target_dir,
             tmp_dir,
+            success: AtomicBool::new(false),
         })
     }
 
@@ -97,11 +102,11 @@ impl OciImageAssembler {
         self.assemble_with(&layer_dir).await
     }
 
-    async fn assemble_with(self, layer_dir: &Path) -> Result<OciImageAssembled> {
-        let local = self
-            .downloader
-            .download(self.resolved.clone(), layer_dir)
-            .await?;
+    async fn assemble_with(mut self, layer_dir: &Path) -> Result<OciImageAssembled> {
+        let Some(ref resolved) = self.resolved else {
+            return Err(anyhow!("resolved image was not available when expected"));
+        };
+        let local = self.downloader.download(resolved, layer_dir).await?;
         let mut vfs = VfsTree::new();
         for layer in &local.layers {
             debug!(
@@ -110,12 +115,14 @@ impl OciImageAssembler {
             );
             self.progress
                 .update(|progress| {
-                    progress.extracting_layer(&layer.digest, 0, 1);
+                    progress.start_extracting_layer(&layer.digest);
                 })
                 .await;
             debug!("process layer digest={}", &layer.digest,);
             let mut archive = layer.archive().await?;
             let mut entries = archive.entries()?;
+            let mut count = 0u64;
+            let mut size = 0u64;
             while let Some(entry) = entries.next().await {
                 let mut entry = entry?;
                 let path = entry.path()?;
@@ -129,14 +136,21 @@ impl OciImageAssembler {
                     self.process_whiteout_entry(&mut vfs, &entry, name, layer)
                         .await?;
                 } else {
-                    vfs.insert_tar_entry(&entry)?;
-                    self.process_write_entry(&mut vfs, &mut entry, layer)
+                    let reference = vfs.insert_tar_entry(&entry)?;
+                    self.progress
+                        .update(|progress| {
+                            progress.extracting_layer(&layer.digest, &reference.name);
+                        })
+                        .await;
+                    size += self
+                        .process_write_entry(&mut vfs, &mut entry, layer)
                         .await?;
+                    count += 1;
                 }
             }
             self.progress
                 .update(|progress| {
-                    progress.extracted_layer(&layer.digest);
+                    progress.extracted_layer(&layer.digest, count, size);
                 })
                 .await;
         }
@@ -145,19 +159,27 @@ impl OciImageAssembler {
                 fs::remove_file(&layer.path).await?;
             }
         }
-        Ok(OciImageAssembled {
+
+        let Some(resolved) = self.resolved.take() else {
+            return Err(anyhow!("resolved image was not available when expected"));
+        };
+
+        let assembled = OciImageAssembled {
             vfs: Arc::new(vfs),
-            digest: self.resolved.digest,
-            manifest: self.resolved.manifest,
+            descriptor: resolved.descriptor,
+            digest: resolved.digest,
+            manifest: resolved.manifest,
             config: local.config,
-            tmp_dir: self.tmp_dir,
-        })
+            tmp_dir: self.tmp_dir.clone(),
+        };
+        self.success.store(true, Ordering::Release);
+        Ok(assembled)
     }
 
     async fn process_whiteout_entry(
         &self,
         vfs: &mut VfsTree,
-        entry: &Entry<Archive<Pin<Box<dyn AsyncRead + Send>>>>,
+        entry: &Entry<Archive<Pin<Box<dyn OciImageLayerReader + Send>>>>,
         name: &str,
         layer: &OciImageLayer,
     ) -> Result<()> {
@@ -198,11 +220,11 @@ impl OciImageAssembler {
     async fn process_write_entry(
         &self,
         vfs: &mut VfsTree,
-        entry: &mut Entry<Archive<Pin<Box<dyn AsyncRead + Send>>>>,
+        entry: &mut Entry<Archive<Pin<Box<dyn OciImageLayerReader + Send>>>>,
         layer: &OciImageLayer,
-    ) -> Result<()> {
+    ) -> Result<u64> {
         if !entry.header().entry_type().is_file() {
-            return Ok(());
+            return Ok(0);
         }
         trace!(
             "unpack entry layer={} path={:?} type={:?}",
@@ -218,7 +240,19 @@ impl OciImageAssembler {
             .await?
             .ok_or(anyhow!("unpack did not return a path"))?;
         vfs.set_disk_path(&entry.path()?, &path)?;
-        Ok(())
+        Ok(entry.header().size()?)
+    }
+}
+
+impl Drop for OciImageAssembler {
+    fn drop(&mut self) {
+        if !self.success.load(Ordering::Acquire) {
+            if let Some(tmp_dir) = self.tmp_dir.clone() {
+                tokio::task::spawn(async move {
+                    let _ = fs::remove_dir_all(tmp_dir).await;
+                });
+            }
+        }
     }
 }
 

crates/oci/src/fetch.rs

@@ -1,4 +1,7 @@
-use crate::progress::{OciBoundProgress, OciProgressPhase};
+use crate::{
+    progress::{OciBoundProgress, OciProgressPhase},
+    schema::OciSchema,
+};
 
 use super::{
     name::ImageName,
@@ -6,6 +9,9 @@ use super::{
 };
 
 use std::{
+    fmt::Debug,
+    io::SeekFrom,
+    os::unix::fs::MetadataExt,
     path::{Path, PathBuf},
     pin::Pin,
 };
@@ -14,12 +20,13 @@ use anyhow::{anyhow, Result};
 use async_compression::tokio::bufread::{GzipDecoder, ZstdDecoder};
 use log::debug;
 use oci_spec::image::{
-    Descriptor, ImageConfiguration, ImageIndex, ImageManifest, MediaType, ToDockerV2S2,
+    Descriptor, DescriptorBuilder, ImageConfiguration, ImageIndex, ImageManifest, MediaType,
+    ToDockerV2S2,
 };
 use serde::de::DeserializeOwned;
 use tokio::{
-    fs::File,
-    io::{AsyncRead, AsyncReadExt, BufReader, BufWriter},
+    fs::{self, File},
+    io::{AsyncRead, AsyncReadExt, AsyncSeekExt, BufReader, BufWriter},
 };
 use tokio_stream::StreamExt;
 use tokio_tar::Archive;
@@ -39,16 +46,43 @@ pub enum OciImageLayerCompression {
 
 #[derive(Clone, Debug)]
 pub struct OciImageLayer {
+    pub metadata: Descriptor,
     pub path: PathBuf,
     pub digest: String,
     pub compression: OciImageLayerCompression,
 }
 
+#[async_trait::async_trait]
+pub trait OciImageLayerReader: AsyncRead + Sync {
+    async fn position(&mut self) -> Result<u64>;
+}
+
+#[async_trait::async_trait]
+impl OciImageLayerReader for BufReader<File> {
+    async fn position(&mut self) -> Result<u64> {
+        Ok(self.seek(SeekFrom::Current(0)).await?)
+    }
+}
+
+#[async_trait::async_trait]
+impl OciImageLayerReader for GzipDecoder<BufReader<File>> {
+    async fn position(&mut self) -> Result<u64> {
+        self.get_mut().position().await
+    }
+}
+
+#[async_trait::async_trait]
+impl OciImageLayerReader for ZstdDecoder<BufReader<File>> {
+    async fn position(&mut self) -> Result<u64> {
+        self.get_mut().position().await
+    }
+}
+
 impl OciImageLayer {
-    pub async fn decompress(&self) -> Result<Pin<Box<dyn AsyncRead + Send>>> {
+    pub async fn decompress(&self) -> Result<Pin<Box<dyn OciImageLayerReader + Send>>> {
         let file = File::open(&self.path).await?;
         let reader = BufReader::new(file);
-        let reader: Pin<Box<dyn AsyncRead + Send>> = match self.compression {
+        let reader: Pin<Box<dyn OciImageLayerReader + Send>> = match self.compression {
             OciImageLayerCompression::None => Box::pin(reader),
             OciImageLayerCompression::Gzip => Box::pin(GzipDecoder::new(reader)),
             OciImageLayerCompression::Zstd => Box::pin(ZstdDecoder::new(reader)),
@@ -56,7 +90,7 @@ impl OciImageLayer {
         Ok(reader)
     }
 
-    pub async fn archive(&self) -> Result<Archive<Pin<Box<dyn AsyncRead + Send>>>> {
+    pub async fn archive(&self) -> Result<Archive<Pin<Box<dyn OciImageLayerReader + Send>>>> {
         let decompress = self.decompress().await?;
         Ok(Archive::new(decompress))
     }
@@ -66,13 +100,14 @@ impl OciImageLayer {
 pub struct OciResolvedImage {
     pub name: ImageName,
     pub digest: String,
-    pub manifest: ImageManifest,
+    pub descriptor: Descriptor,
+    pub manifest: OciSchema<ImageManifest>,
 }
 
 #[derive(Clone, Debug)]
 pub struct OciLocalImage {
     pub image: OciResolvedImage,
-    pub config: ImageConfiguration,
+    pub config: OciSchema<ImageConfiguration>,
     pub layers: Vec<OciImageLayer>,
 }
 
@@ -89,10 +124,10 @@ impl OciImageFetcher {
         }
     }
 
-    async fn load_seed_json_blob<T: DeserializeOwned>(
+    async fn load_seed_json_blob<T: Clone + Debug + DeserializeOwned>(
         &self,
         descriptor: &Descriptor,
-    ) -> Result<Option<T>> {
+    ) -> Result<Option<OciSchema<T>>> {
         let digest = descriptor.digest();
         let Some((digest_type, digest_content)) = digest.split_once(':') else {
             return Err(anyhow!("digest content was not properly formatted"));
@@ -101,7 +136,10 @@ impl OciImageFetcher {
         self.load_seed_json(&want).await
     }
 
-    async fn load_seed_json<T: DeserializeOwned>(&self, want: &str) -> Result<Option<T>> {
+    async fn load_seed_json<T: Clone + Debug + DeserializeOwned>(
+        &self,
+        want: &str,
+    ) -> Result<Option<OciSchema<T>>> {
         let Some(ref seed) = self.seed else {
             return Ok(None);
         };
@@ -113,10 +151,10 @@ impl OciImageFetcher {
             let mut entry = entry?;
             let path = String::from_utf8(entry.path_bytes().to_vec())?;
             if path == want {
-                let mut content = String::new();
-                entry.read_to_string(&mut content).await?;
-                let data = serde_json::from_str::<T>(&content)?;
-                return Ok(Some(data));
+                let mut content = Vec::new();
+                entry.read_to_end(&mut content).await?;
+                let item = serde_json::from_slice::<T>(&content)?;
+                return Ok(Some(OciSchema::new(content, item)));
             }
         }
         Ok(None)
@@ -154,7 +192,7 @@ impl OciImageFetcher {
 
         if let Some(index) = self.load_seed_json::<ImageIndex>("index.json").await? {
             let mut found: Option<&Descriptor> = None;
-            for manifest in index.manifests() {
+            for manifest in index.item().manifests() {
                 let Some(annotations) = manifest.annotations() else {
                     continue;
                 };
@@ -179,6 +217,13 @@ impl OciImageFetcher {
                         continue;
                     }
                 }
+
+                if let Some(ref digest) = image.digest {
+                    if digest != manifest.digest() {
+                        continue;
+                    }
+                }
+
                 found = Some(manifest);
                 break;
             }
@@ -192,6 +237,7 @@ impl OciImageFetcher {
                     );
                     return Ok(OciResolvedImage {
                         name: image,
+                        descriptor: found.clone(),
                         digest: found.digest().clone(),
                         manifest,
                     });
@@ -200,11 +246,20 @@ impl OciImageFetcher {
         }
 
         let mut client = OciRegistryClient::new(image.registry_url()?, self.platform.clone())?;
-        let (manifest, digest) = client
-            .get_manifest_with_digest(&image.name, &image.reference)
+        let (manifest, descriptor, digest) = client
+            .get_manifest_with_digest(&image.name, image.reference.as_ref(), image.digest.as_ref())
             .await?;
+        let descriptor = descriptor.unwrap_or_else(|| {
+            DescriptorBuilder::default()
+                .media_type(MediaType::ImageManifest)
+                .size(manifest.raw().len() as i64)
+                .digest(digest.clone())
+                .build()
+                .unwrap()
+        });
         Ok(OciResolvedImage {
             name: image,
+            descriptor,
             digest,
             manifest,
         })
@@ -212,41 +267,44 @@ impl OciImageFetcher {
 
     pub async fn download(
         &self,
-        image: OciResolvedImage,
+        image: &OciResolvedImage,
         layer_dir: &Path,
     ) -> Result<OciLocalImage> {
-        let config: ImageConfiguration;
+        let config: OciSchema<ImageConfiguration>;
         self.progress
             .update(|progress| {
-                progress.phase = OciProgressPhase::ConfigAcquire;
+                progress.phase = OciProgressPhase::ConfigDownload;
             })
             .await;
         let mut client = OciRegistryClient::new(image.name.registry_url()?, self.platform.clone())?;
         if let Some(seeded) = self
-            .load_seed_json_blob::<ImageConfiguration>(image.manifest.config())
+            .load_seed_json_blob::<ImageConfiguration>(image.manifest.item().config())
             .await?
         {
             config = seeded;
         } else {
             let config_bytes = client
-                .get_blob(&image.name.name, image.manifest.config())
+                .get_blob(&image.name.name, image.manifest.item().config())
                 .await?;
-            config = serde_json::from_slice(&config_bytes)?;
+            config = OciSchema::new(
+                config_bytes.to_vec(),
+                serde_json::from_slice(&config_bytes)?,
+            );
         }
         self.progress
             .update(|progress| {
-                progress.phase = OciProgressPhase::LayerAcquire;
+                progress.phase = OciProgressPhase::LayerDownload;
 
-                for layer in image.manifest.layers() {
-                    progress.add_layer(layer.digest(), layer.size() as usize);
+                for layer in image.manifest.item().layers() {
+                    progress.add_layer(layer.digest());
                 }
             })
             .await;
         let mut layers = Vec::new();
-        for layer in image.manifest.layers() {
+        for layer in image.manifest.item().layers() {
             self.progress
                 .update(|progress| {
-                    progress.downloading_layer(layer.digest(), 0, layer.size() as usize);
+                    progress.downloading_layer(layer.digest(), 0, layer.size() as u64);
                 })
                 .await;
             layers.push(
@@ -255,12 +313,12 @@ impl OciImageFetcher {
             );
             self.progress
                 .update(|progress| {
-                    progress.downloaded_layer(layer.digest());
+                    progress.downloaded_layer(layer.digest(), layer.size() as u64);
                 })
                 .await;
         }
         Ok(OciLocalImage {
-            image,
+            image: image.clone(),
             config,
             layers,
         })
@@ -294,6 +352,12 @@ impl OciImageFetcher {
             }
         }
 
+        let metadata = fs::metadata(&layer_path).await?;
+
+        if layer.size() as u64 != metadata.size() {
+            return Err(anyhow!("layer size differs from size in manifest",));
+        }
+
         let mut media_type = layer.media_type().clone();
 
         // docker layer compatibility
@@ -308,6 +372,7 @@ impl OciImageFetcher {
             other => return Err(anyhow!("found layer with unknown media type: {}", other)),
         };
         Ok(OciImageLayer {
+            metadata: layer.clone(),
             path: layer_path,
             digest: layer.digest().clone(),
             compression,

crates/oci/src/lib.rs

@@ -4,4 +4,5 @@ pub mod name;
 pub mod packer;
 pub mod progress;
 pub mod registry;
+pub mod schema;
 pub mod vfs;

crates/oci/src/name.rs

@@ -2,27 +2,39 @@ use anyhow::Result;
 use std::fmt;
 use url::Url;
 
-const DOCKER_HUB_MIRROR: &str = "mirror.gcr.io";
-const DEFAULT_IMAGE_TAG: &str = "latest";
-
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct ImageName {
     pub hostname: String,
     pub port: Option<u16>,
     pub name: String,
-    pub reference: String,
+    pub reference: Option<String>,
+    pub digest: Option<String>,
 }
 
 impl fmt::Display for ImageName {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        if let Some(port) = self.port {
-            write!(
-                f,
-                "{}:{}/{}:{}",
-                self.hostname, port, self.name, self.reference
-            )
+        let mut suffix = String::new();
+
+        if let Some(ref reference) = self.reference {
+            suffix.push(':');
+            suffix.push_str(reference);
+        }
+
+        if let Some(ref digest) = self.digest {
+            suffix.push('@');
+            suffix.push_str(digest);
+        }
+
+        if ImageName::DOCKER_HUB_MIRROR == self.hostname && self.port.is_none() {
+            if self.name.starts_with("library/") {
+                write!(f, "{}{}", &self.name[8..], suffix)
             } else {
-            write!(f, "{}/{}:{}", self.hostname, self.name, self.reference)
+                write!(f, "{}{}", self.name, suffix)
+            }
+        } else if let Some(port) = self.port {
+            write!(f, "{}:{}/{}{}", self.hostname, port, self.name, suffix)
+        } else {
+            write!(f, "{}/{}{}", self.hostname, self.name, suffix)
         }
     }
 }
@@ -35,13 +47,21 @@ impl Default for ImageName {
 }
 
 impl ImageName {
+    pub const DOCKER_HUB_MIRROR: &'static str = "mirror.gcr.io";
+    pub const DEFAULT_IMAGE_TAG: &'static str = "latest";
+
     pub fn parse(name: &str) -> Result<Self> {
         let full_name = name.to_string();
         let name = full_name.clone();
         let (mut hostname, mut name) = name
             .split_once('/')
             .map(|x| (x.0.to_string(), x.1.to_string()))
-            .unwrap_or_else(|| (DOCKER_HUB_MIRROR.to_string(), format!("library/{}", name)));
+            .unwrap_or_else(|| {
+                (
+                    ImageName::DOCKER_HUB_MIRROR.to_string(),
+                    format!("library/{}", name),
+                )
+            });
 
         // heuristic to find any docker hub image formats
         // that may be in the hostname format. for example:
@@ -49,7 +69,7 @@ impl ImageName {
         // and neither will abc/hello/xyz:latest
         if !hostname.contains('.') && full_name.chars().filter(|x| *x == '/').count() == 1 {
             name = format!("{}/{}", hostname, name);
-            hostname = DOCKER_HUB_MIRROR.to_string();
+            hostname = ImageName::DOCKER_HUB_MIRROR.to_string();
         }
 
         let (hostname, port) = if let Some((hostname, port)) = hostname
@@ -60,15 +80,54 @@ impl ImageName {
         } else {
             (hostname, None)
         };
-        let (name, reference) = name
-            .split_once(':')
-            .map(|x| (x.0.to_string(), x.1.to_string()))
-            .unwrap_or((name.to_string(), DEFAULT_IMAGE_TAG.to_string()));
+
+        let name_has_digest = if name.contains('@') {
+            let digest_start = name.chars().position(|c| c == '@');
+            let ref_start = name.chars().position(|c| c == ':');
+            if let (Some(digest_start), Some(ref_start)) = (digest_start, ref_start) {
+                digest_start < ref_start
+            } else {
+                true
+            }
+        } else {
+            false
+        };
+
+        let (name, digest) = if name_has_digest {
+            name.split_once('@')
+                .map(|(name, digest)| (name.to_string(), Some(digest.to_string())))
+                .unwrap_or_else(|| (name, None))
+        } else {
+            (name, None)
+        };
+
+        let (name, reference) = if name.contains(':') {
+            name.split_once(':')
+                .map(|(name, reference)| (name.to_string(), Some(reference.to_string())))
+                .unwrap_or((name, None))
+        } else {
+            (name, None)
+        };
+
+        let (reference, digest) = if let Some(reference) = reference {
+            if let Some(digest) = digest {
+                (Some(reference), Some(digest))
+            } else {
+                reference
+                    .split_once('@')
+                    .map(|(reff, digest)| (Some(reff.to_string()), Some(digest.to_string())))
+                    .unwrap_or_else(|| (Some(reference), None))
+            }
+        } else {
+            (None, digest)
+        };
+
         Ok(ImageName {
             hostname,
             port,
             name,
             reference,
+            digest,
         })
     }
 

crates/oci/src/packer/backend.rs

@@ -1,18 +1,22 @@
-use std::{path::Path, process::Stdio, sync::Arc};
+use std::{os::unix::fs::MetadataExt, path::Path, process::Stdio, sync::Arc};
 
 use super::OciPackedFormat;
-use crate::{
-    progress::{OciBoundProgress, OciProgressPhase},
-    vfs::VfsTree,
-};
+use crate::{progress::OciBoundProgress, vfs::VfsTree};
 use anyhow::{anyhow, Result};
 use log::warn;
-use tokio::{pin, process::Command, select};
+use tokio::{
+    fs::{self, File},
+    io::BufWriter,
+    pin,
+    process::{Child, Command},
+    select,
+};
 
 #[derive(Debug, Clone, Copy)]
 pub enum OciPackerBackendType {
     MkSquashfs,
     MkfsErofs,
+    Tar,
 }
 
 impl OciPackerBackendType {
@@ -20,6 +24,7 @@ impl OciPackerBackendType {
         match self {
             OciPackerBackendType::MkSquashfs => OciPackedFormat::Squashfs,
             OciPackerBackendType::MkfsErofs => OciPackedFormat::Erofs,
+            OciPackerBackendType::Tar => OciPackedFormat::Tar,
         }
     }
 
@@ -31,6 +36,7 @@ impl OciPackerBackendType {
             OciPackerBackendType::MkfsErofs => {
                 Box::new(OciPackerMkfsErofs {}) as Box<dyn OciPackerBackend>
             }
+            OciPackerBackendType::Tar => Box::new(OciPackerTar {}) as Box<dyn OciPackerBackend>,
         }
     }
 }
@@ -47,13 +53,11 @@ impl OciPackerBackend for OciPackerMkSquashfs {
     async fn pack(&self, progress: OciBoundProgress, vfs: Arc<VfsTree>, file: &Path) -> Result<()> {
         progress
             .update(|progress| {
-                progress.phase = OciProgressPhase::Packing;
-                progress.total = 1;
-                progress.value = 0;
+                progress.start_packing();
             })
             .await;
 
-        let mut child = Command::new("mksquashfs")
+        let child = Command::new("mksquashfs")
             .arg("-")
             .arg(file)
             .arg("-comp")
@@ -63,7 +67,9 @@ impl OciPackerBackend for OciPackerMkSquashfs {
             .stderr(Stdio::null())
             .stdout(Stdio::null())
             .spawn()?;
+        let mut child = ChildProcessKillGuard(child);
         let stdin = child
+            .0
             .stdin
             .take()
             .ok_or(anyhow!("unable to acquire stdin stream"))?;
@@ -74,7 +80,7 @@ impl OciPackerBackend for OciPackerMkSquashfs {
             }
             Ok(())
         }));
-        let wait = child.wait();
+        let wait = child.0.wait();
         pin!(wait);
         let status_result = loop {
             if let Some(inner) = writer.as_mut() {
@@ -110,12 +116,9 @@ impl OciPackerBackend for OciPackerMkSquashfs {
                 status.code().unwrap()
             ))
         } else {
+            let metadata = fs::metadata(&file).await?;
             progress
-                .update(|progress| {
-                    progress.phase = OciProgressPhase::Packing;
-                    progress.total = 1;
-                    progress.value = 1;
-                })
+                .update(|progress| progress.complete(metadata.size()))
                 .await;
             Ok(())
         }
@@ -126,32 +129,32 @@ pub struct OciPackerMkfsErofs {}
 
 #[async_trait::async_trait]
 impl OciPackerBackend for OciPackerMkfsErofs {
-    async fn pack(&self, progress: OciBoundProgress, vfs: Arc<VfsTree>, path: &Path) -> Result<()> {
+    async fn pack(&self, progress: OciBoundProgress, vfs: Arc<VfsTree>, file: &Path) -> Result<()> {
         progress
             .update(|progress| {
-                progress.phase = OciProgressPhase::Packing;
-                progress.total = 1;
-                progress.value = 0;
+                progress.start_packing();
             })
             .await;
 
-        let mut child = Command::new("mkfs.erofs")
+        let child = Command::new("mkfs.erofs")
             .arg("-L")
             .arg("root")
             .arg("--tar=-")
-            .arg(path)
+            .arg(file)
             .stdin(Stdio::piped())
             .stderr(Stdio::null())
             .stdout(Stdio::null())
             .spawn()?;
+        let mut child = ChildProcessKillGuard(child);
         let stdin = child
+            .0
             .stdin
             .take()
             .ok_or(anyhow!("unable to acquire stdin stream"))?;
         let mut writer = Some(tokio::task::spawn(
             async move { vfs.write_to_tar(stdin).await },
         ));
-        let wait = child.wait();
+        let wait = child.0.wait();
         pin!(wait);
         let status_result = loop {
             if let Some(inner) = writer.as_mut() {
@@ -188,14 +191,46 @@ impl OciPackerBackend for OciPackerMkfsErofs {
                 status.code().unwrap()
             ))
         } else {
+            let metadata = fs::metadata(&file).await?;
             progress
                 .update(|progress| {
-                    progress.phase = OciProgressPhase::Packing;
-                    progress.total = 1;
-                    progress.value = 1;
+                    progress.complete(metadata.size());
                 })
                 .await;
             Ok(())
         }
     }
 }
+
+pub struct OciPackerTar {}
+
+#[async_trait::async_trait]
+impl OciPackerBackend for OciPackerTar {
+    async fn pack(&self, progress: OciBoundProgress, vfs: Arc<VfsTree>, file: &Path) -> Result<()> {
+        progress
+            .update(|progress| {
+                progress.start_packing();
+            })
+            .await;
+
+        let output = File::create(file).await?;
+        let output = BufWriter::new(output);
+        vfs.write_to_tar(output).await?;
+
+        let metadata = fs::metadata(file).await?;
+        progress
+            .update(|progress| {
+                progress.complete(metadata.size());
+            })
+            .await;
+        Ok(())
+    }
+}
+
+struct ChildProcessKillGuard(Child);
+
+impl Drop for ChildProcessKillGuard {
+    fn drop(&mut self) {
+        let _ = self.0.start_kill();
+    }
+}

crates/oci/src/packer/cache.rs

@@ -1,66 +1,121 @@
-use crate::packer::{OciImagePacked, OciPackedFormat};
+use crate::{
+    name::ImageName,
+    packer::{OciPackedFormat, OciPackedImage},
+    schema::OciSchema,
+};
 
 use anyhow::Result;
-use log::debug;
-use oci_spec::image::{ImageConfiguration, ImageManifest};
-use std::path::{Path, PathBuf};
-use tokio::fs;
+use log::{debug, error};
+use oci_spec::image::{
+    Descriptor, ImageConfiguration, ImageIndex, ImageIndexBuilder, ImageManifest, MediaType,
+    ANNOTATION_REF_NAME,
+};
+use std::{
+    path::{Path, PathBuf},
+    sync::Arc,
+};
+use tokio::{fs, sync::RwLock};
 
 #[derive(Clone)]
 pub struct OciPackerCache {
     cache_dir: PathBuf,
+    index: Arc<RwLock<ImageIndex>>,
 }
 
+const ANNOTATION_IMAGE_NAME: &str = "io.containerd.image.name";
+const ANNOTATION_OCI_PACKER_FORMAT: &str = "dev.krata.oci.packer.format";
+
 impl OciPackerCache {
-    pub fn new(cache_dir: &Path) -> Result<OciPackerCache> {
-        Ok(OciPackerCache {
+    pub async fn new(cache_dir: &Path) -> Result<OciPackerCache> {
+        let index = ImageIndexBuilder::default()
+            .schema_version(2u32)
+            .media_type(MediaType::ImageIndex)
+            .manifests(Vec::new())
+            .build()?;
+        let cache = OciPackerCache {
             cache_dir: cache_dir.to_path_buf(),
-        })
+            index: Arc::new(RwLock::new(index)),
+        };
+
+        {
+            let mut mutex = cache.index.write().await;
+            *mutex = cache.load_index().await?;
+        }
+
+        Ok(cache)
+    }
+
+    pub async fn list(&self) -> Result<Vec<Descriptor>> {
+        let index = self.index.read().await;
+        Ok(index.manifests().clone())
     }
 
     pub async fn recall(
         &self,
+        name: ImageName,
         digest: &str,
         format: OciPackedFormat,
-    ) -> Result<Option<OciImagePacked>> {
+    ) -> Result<Option<OciPackedImage>> {
+        let index = self.index.read().await;
+
+        let mut descriptor: Option<Descriptor> = None;
+        for manifest in index.manifests() {
+            if manifest.digest() == digest
+                && manifest
+                    .annotations()
+                    .as_ref()
+                    .and_then(|x| x.get(ANNOTATION_OCI_PACKER_FORMAT))
+                    .map(|x| x.as_str())
+                    == Some(format.extension())
+            {
+                descriptor = Some(manifest.clone());
+                break;
+            }
+        }
+
+        let Some(descriptor) = descriptor else {
+            return Ok(None);
+        };
+
         let mut fs_path = self.cache_dir.clone();
         let mut config_path = self.cache_dir.clone();
         let mut manifest_path = self.cache_dir.clone();
         fs_path.push(format!("{}.{}", digest, format.extension()));
         manifest_path.push(format!("{}.manifest.json", digest));
         config_path.push(format!("{}.config.json", digest));
-        Ok(
+
         if fs_path.exists() && manifest_path.exists() && config_path.exists() {
             let image_metadata = fs::metadata(&fs_path).await?;
             let manifest_metadata = fs::metadata(&manifest_path).await?;
             let config_metadata = fs::metadata(&config_path).await?;
-                if image_metadata.is_file()
-                    && manifest_metadata.is_file()
-                    && config_metadata.is_file()
+            if image_metadata.is_file() && manifest_metadata.is_file() && config_metadata.is_file()
             {
-                    let manifest_text = fs::read_to_string(&manifest_path).await?;
-                    let manifest: ImageManifest = serde_json::from_str(&manifest_text)?;
-                    let config_text = fs::read_to_string(&config_path).await?;
-                    let config: ImageConfiguration = serde_json::from_str(&config_text)?;
+                let manifest_bytes = fs::read(&manifest_path).await?;
+                let manifest: ImageManifest = serde_json::from_slice(&manifest_bytes)?;
+                let config_bytes = fs::read(&config_path).await?;
+                let config: ImageConfiguration = serde_json::from_slice(&config_bytes)?;
                 debug!("cache hit digest={}", digest);
-                    Some(OciImagePacked::new(
+                Ok(Some(OciPackedImage::new(
+                    name,
                     digest.to_string(),
                     fs_path.clone(),
                     format,
-                        config,
-                        manifest,
-                    ))
+                    descriptor,
+                    OciSchema::new(config_bytes, config),
+                    OciSchema::new(manifest_bytes, manifest),
+                )))
             } else {
-                    None
+                Ok(None)
             }
         } else {
             debug!("cache miss digest={}", digest);
-                None
-            },
-        )
+            Ok(None)
+        }
     }
 
-    pub async fn store(&self, packed: OciImagePacked) -> Result<OciImagePacked> {
+    pub async fn store(&self, packed: OciPackedImage) -> Result<OciPackedImage> {
+        let mut index = self.index.write().await;
+        let mut manifests = index.manifests().clone();
         debug!("cache store digest={}", packed.digest);
         let mut fs_path = self.cache_dir.clone();
         let mut manifest_path = self.cache_dir.clone();
@@ -68,17 +123,98 @@ impl OciPackerCache {
         fs_path.push(format!("{}.{}", packed.digest, packed.format.extension()));
         manifest_path.push(format!("{}.manifest.json", packed.digest));
         config_path.push(format!("{}.config.json", packed.digest));
+        if fs::rename(&packed.path, &fs_path).await.is_err() {
             fs::copy(&packed.path, &fs_path).await?;
-        let manifest_text = serde_json::to_string_pretty(&packed.manifest)?;
-        fs::write(&manifest_path, manifest_text).await?;
-        let config_text = serde_json::to_string_pretty(&packed.config)?;
-        fs::write(&config_path, config_text).await?;
-        Ok(OciImagePacked::new(
+            fs::remove_file(&packed.path).await?;
+        }
+        fs::write(&config_path, packed.config.raw()).await?;
+        fs::write(&manifest_path, packed.manifest.raw()).await?;
+        manifests.retain(|item| {
+            if item.digest() != &packed.digest {
+                return true;
+            }
+
+            let Some(format) = item
+                .annotations()
+                .as_ref()
+                .and_then(|x| x.get(ANNOTATION_OCI_PACKER_FORMAT))
+                .map(|x| x.as_str())
+            else {
+                return true;
+            };
+
+            if format != packed.format.extension() {
+                return true;
+            }
+
+            false
+        });
+
+        let mut descriptor = packed.descriptor.clone();
+        let mut annotations = descriptor.annotations().clone().unwrap_or_default();
+        annotations.insert(
+            ANNOTATION_OCI_PACKER_FORMAT.to_string(),
+            packed.format.extension().to_string(),
+        );
+        let image_name = packed.name.to_string();
+        annotations.insert(ANNOTATION_IMAGE_NAME.to_string(), image_name);
+        let image_ref = packed.name.reference.clone();
+        if let Some(image_ref) = image_ref {
+            annotations.insert(ANNOTATION_REF_NAME.to_string(), image_ref);
+        }
+        descriptor.set_annotations(Some(annotations));
+        manifests.push(descriptor.clone());
+        index.set_manifests(manifests);
+        self.save_index(&index).await?;
+
+        let packed = OciPackedImage::new(
+            packed.name,
             packed.digest,
             fs_path.clone(),
             packed.format,
+            descriptor,
             packed.config,
             packed.manifest,
-        ))
+        );
+        Ok(packed)
+    }
+
+    async fn save_empty_index(&self) -> Result<ImageIndex> {
+        let index = ImageIndexBuilder::default()
+            .schema_version(2u32)
+            .media_type(MediaType::ImageIndex)
+            .manifests(Vec::new())
+            .build()?;
+        self.save_index(&index).await?;
+        Ok(index)
+    }
+
+    async fn load_index(&self) -> Result<ImageIndex> {
+        let mut index_path = self.cache_dir.clone();
+        index_path.push("index.json");
+
+        if !index_path.exists() {
+            self.save_empty_index().await?;
+        }
+
+        let content = fs::read_to_string(&index_path).await?;
+        let index = match serde_json::from_str::<ImageIndex>(&content) {
+            Ok(index) => index,
+            Err(error) => {
+                error!("image index was corrupted, creating a new one: {}", error);
+                self.save_empty_index().await?
+            }
+        };
+
+        Ok(index)
+    }
+
+    async fn save_index(&self, index: &ImageIndex) -> Result<()> {
+        let mut encoded = serde_json::to_string_pretty(index)?;
+        encoded.push('\n');
+        let mut index_path = self.cache_dir.clone();
+        index_path.push("index.json");
+        fs::write(&index_path, encoded).await?;
+        Ok(())
     }
 }

crates/oci/src/packer/mod.rs

@@ -1,17 +1,20 @@
 use std::path::PathBuf;
 
+use crate::{name::ImageName, schema::OciSchema};
+
 use self::backend::OciPackerBackendType;
-use oci_spec::image::{ImageConfiguration, ImageManifest};
+use oci_spec::image::{Descriptor, ImageConfiguration, ImageManifest};
 
 pub mod backend;
 pub mod cache;
 pub mod service;
 
-#[derive(Debug, Default, Clone, Copy)]
+#[derive(Debug, Default, Clone, Copy, Eq, PartialEq, Hash)]
 pub enum OciPackedFormat {
     #[default]
     Squashfs,
     Erofs,
+    Tar,
 }
 
 impl OciPackedFormat {
@@ -19,6 +22,7 @@ impl OciPackedFormat {
         match self {
             OciPackedFormat::Squashfs => "squashfs",
             OciPackedFormat::Erofs => "erofs",
+            OciPackedFormat::Tar => "tar",
         }
     }
 
@@ -26,31 +30,38 @@ impl OciPackedFormat {
         match self {
             OciPackedFormat::Squashfs => OciPackerBackendType::MkSquashfs,
             OciPackedFormat::Erofs => OciPackerBackendType::MkfsErofs,
+            OciPackedFormat::Tar => OciPackerBackendType::Tar,
         }
     }
 }
 
 #[derive(Clone)]
-pub struct OciImagePacked {
+pub struct OciPackedImage {
+    pub name: ImageName,
     pub digest: String,
     pub path: PathBuf,
     pub format: OciPackedFormat,
-    pub config: ImageConfiguration,
-    pub manifest: ImageManifest,
+    pub descriptor: Descriptor,
+    pub config: OciSchema<ImageConfiguration>,
+    pub manifest: OciSchema<ImageManifest>,
 }
 
-impl OciImagePacked {
+impl OciPackedImage {
     pub fn new(
+        name: ImageName,
         digest: String,
         path: PathBuf,
         format: OciPackedFormat,
-        config: ImageConfiguration,
-        manifest: ImageManifest,
-    ) -> OciImagePacked {
-        OciImagePacked {
+        descriptor: Descriptor,
+        config: OciSchema<ImageConfiguration>,
+        manifest: OciSchema<ImageManifest>,
+    ) -> OciPackedImage {
+        OciPackedImage {
+            name,
             digest,
             path,
             format,
+            descriptor,
             config,
             manifest,
         }

crates/oci/src/packer/service.rs

@@ -1,58 +1,201 @@
-use std::path::{Path, PathBuf};
+use std::{
+    collections::{hash_map::Entry, HashMap},
+    fmt::Display,
+    path::{Path, PathBuf},
+    sync::Arc,
+};
 
 use anyhow::{anyhow, Result};
+use oci_spec::image::Descriptor;
+use tokio::{
+    sync::{watch, Mutex},
+    task::JoinHandle,
+};
 
 use crate::{
     assemble::OciImageAssembler,
-    fetch::OciImageFetcher,
+    fetch::{OciImageFetcher, OciResolvedImage},
     name::ImageName,
     progress::{OciBoundProgress, OciProgress, OciProgressContext},
     registry::OciPlatform,
 };
 
-use super::{cache::OciPackerCache, OciImagePacked, OciPackedFormat};
+use log::{error, info, warn};
+
+use super::{cache::OciPackerCache, OciPackedFormat, OciPackedImage};
+
+pub struct OciPackerTask {
+    progress: OciBoundProgress,
+    watch: watch::Sender<Option<Result<OciPackedImage>>>,
+    task: JoinHandle<()>,
+}
 
 #[derive(Clone)]
 pub struct OciPackerService {
     seed: Option<PathBuf>,
     platform: OciPlatform,
     cache: OciPackerCache,
+    tasks: Arc<Mutex<HashMap<OciPackerTaskKey, OciPackerTask>>>,
 }
 
 impl OciPackerService {
-    pub fn new(
+    pub async fn new(
         seed: Option<PathBuf>,
         cache_dir: &Path,
         platform: OciPlatform,
     ) -> Result<OciPackerService> {
         Ok(OciPackerService {
             seed,
-            cache: OciPackerCache::new(cache_dir)?,
+            cache: OciPackerCache::new(cache_dir).await?,
             platform,
+            tasks: Arc::new(Mutex::new(HashMap::new())),
         })
     }
 
+    pub async fn list(&self) -> Result<Vec<Descriptor>> {
+        self.cache.list().await
+    }
+
     pub async fn recall(
         &self,
         digest: &str,
         format: OciPackedFormat,
-    ) -> Result<Option<OciImagePacked>> {
-        self.cache.recall(digest, format).await
+    ) -> Result<Option<OciPackedImage>> {
+        if digest.contains('/') || digest.contains('\\') || digest.contains("..") {
+            return Ok(None);
+        }
+
+        self.cache
+            .recall(ImageName::parse("cached:latest")?, digest, format)
+            .await
     }
 
     pub async fn request(
         &self,
         name: ImageName,
         format: OciPackedFormat,
+        overwrite: bool,
         progress_context: OciProgressContext,
-    ) -> Result<OciImagePacked> {
+    ) -> Result<OciPackedImage> {
         let progress = OciProgress::new();
         let progress = OciBoundProgress::new(progress_context.clone(), progress);
         let fetcher =
             OciImageFetcher::new(self.seed.clone(), self.platform.clone(), progress.clone());
-        let resolved = fetcher.resolve(name).await?;
-        if let Some(cached) = self.cache.recall(&resolved.digest, format).await? {
-            return Ok(cached);
+        let resolved = fetcher.resolve(name.clone()).await?;
+        let key = OciPackerTaskKey {
+            digest: resolved.digest.clone(),
+            format,
+        };
+        let (progress_copy_task, mut receiver) = match self.tasks.lock().await.entry(key.clone()) {
+            Entry::Occupied(entry) => {
+                let entry = entry.get();
+                (
+                    Some(entry.progress.also_update(progress_context).await),
+                    entry.watch.subscribe(),
+                )
+            }
+
+            Entry::Vacant(entry) => {
+                let task = self
+                    .clone()
+                    .launch(
+                        name,
+                        key.clone(),
+                        format,
+                        overwrite,
+                        resolved,
+                        fetcher,
+                        progress.clone(),
+                    )
+                    .await;
+                let (watch, receiver) = watch::channel(None);
+
+                let task = OciPackerTask {
+                    progress: progress.clone(),
+                    task,
+                    watch,
+                };
+                entry.insert(task);
+                (None, receiver)
+            }
+        };
+
+        let _progress_task_guard = scopeguard::guard(progress_copy_task, |task| {
+            if let Some(task) = task {
+                task.abort();
+            }
+        });
+
+        let _task_cancel_guard = scopeguard::guard(self.clone(), |service| {
+            service.maybe_cancel_task(key);
+        });
+
+        loop {
+            receiver.changed().await?;
+            let current = receiver.borrow_and_update();
+            if current.is_some() {
+                return current
+                    .as_ref()
+                    .map(|x| x.as_ref().map_err(|err| anyhow!("{}", err)).cloned())
+                    .unwrap();
+            }
+        }
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    async fn launch(
+        self,
+        name: ImageName,
+        key: OciPackerTaskKey,
+        format: OciPackedFormat,
+        overwrite: bool,
+        resolved: OciResolvedImage,
+        fetcher: OciImageFetcher,
+        progress: OciBoundProgress,
+    ) -> JoinHandle<()> {
+        info!("started packer task {}", key);
+        tokio::task::spawn(async move {
+            let _task_drop_guard =
+                scopeguard::guard((key.clone(), self.clone()), |(key, service)| {
+                    service.ensure_task_gone(key);
+                });
+            if let Err(error) = self
+                .task(
+                    name,
+                    key.clone(),
+                    format,
+                    overwrite,
+                    resolved,
+                    fetcher,
+                    progress,
+                )
+                .await
+            {
+                self.finish(&key, Err(error)).await;
+            }
+        })
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    async fn task(
+        &self,
+        name: ImageName,
+        key: OciPackerTaskKey,
+        format: OciPackedFormat,
+        overwrite: bool,
+        resolved: OciResolvedImage,
+        fetcher: OciImageFetcher,
+        progress: OciBoundProgress,
+    ) -> Result<()> {
+        if !overwrite {
+            if let Some(cached) = self
+                .cache
+                .recall(name.clone(), &resolved.digest, format)
+                .await?
+            {
+                self.finish(&key, Ok(cached)).await;
+                return Ok(());
+            }
         }
         let assembler =
             OciImageAssembler::new(fetcher, resolved, progress.clone(), None, None).await?;
@@ -67,15 +210,69 @@ impl OciPackerService {
         packer
             .pack(progress, assembled.vfs.clone(), &target)
             .await?;
-
-        let packed = OciImagePacked::new(
+        let packed = OciPackedImage::new(
+            name,
             assembled.digest.clone(),
             file,
             format,
+            assembled.descriptor.clone(),
             assembled.config.clone(),
             assembled.manifest.clone(),
         );
         let packed = self.cache.store(packed).await?;
-        Ok(packed)
+        self.finish(&key, Ok(packed)).await;
+        Ok(())
+    }
+
+    async fn finish(&self, key: &OciPackerTaskKey, result: Result<OciPackedImage>) {
+        let Some(task) = self.tasks.lock().await.remove(key) else {
+            error!("packer task {} was not found when task completed", key);
+            return;
+        };
+
+        match result.as_ref() {
+            Ok(_) => {
+                info!("completed packer task {}", key);
+            }
+
+            Err(err) => {
+                warn!("packer task {} failed: {}", key, err);
+            }
+        }
+
+        task.watch.send_replace(Some(result));
+    }
+
+    fn maybe_cancel_task(self, key: OciPackerTaskKey) {
+        tokio::task::spawn(async move {
+            let tasks = self.tasks.lock().await;
+            if let Some(task) = tasks.get(&key) {
+                if task.watch.is_closed() {
+                    task.task.abort();
+                }
+            }
+        });
+    }
+
+    fn ensure_task_gone(self, key: OciPackerTaskKey) {
+        tokio::task::spawn(async move {
+            let mut tasks = self.tasks.lock().await;
+            if let Some(task) = tasks.remove(&key) {
+                warn!("aborted packer task {}", key);
+                task.watch.send_replace(Some(Err(anyhow!("task aborted"))));
+            }
+        });
+    }
+}
+
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
+struct OciPackerTaskKey {
+    digest: String,
+    format: OciPackedFormat,
+}
+
+impl Display for OciPackerTaskKey {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_fmt(format_args!("{}:{}", self.digest, self.format.extension()))
     }
 }

crates/oci/src/progress.rs

@@ -1,14 +1,16 @@
-use std::sync::Arc;
-
 use indexmap::IndexMap;
-use tokio::sync::{mpsc::Sender, Mutex};
+use std::sync::Arc;
+use tokio::{
+    sync::{watch, Mutex},
+    task::JoinHandle,
+};
 
 #[derive(Clone, Debug)]
 pub struct OciProgress {
     pub phase: OciProgressPhase,
+    pub digest: Option<String>,
     pub layers: IndexMap<String, OciProgressLayer>,
-    pub value: u64,
-    pub total: u64,
+    pub indication: OciProgressIndication,
 }
 
 impl Default for OciProgress {
@@ -20,72 +22,146 @@ impl Default for OciProgress {
 impl OciProgress {
     pub fn new() -> Self {
         OciProgress {
-            phase: OciProgressPhase::Resolving,
+            phase: OciProgressPhase::Started,
+            digest: None,
             layers: IndexMap::new(),
-            value: 0,
-            total: 1,
+            indication: OciProgressIndication::Hidden,
         }
     }
 
-    pub fn add_layer(&mut self, id: &str, size: usize) {
+    pub fn start_resolving(&mut self) {
+        self.phase = OciProgressPhase::Resolving;
+        self.indication = OciProgressIndication::Spinner { message: None };
+    }
+
+    pub fn resolved(&mut self, digest: &str) {
+        self.digest = Some(digest.to_string());
+        self.indication = OciProgressIndication::Hidden;
+    }
+
+    pub fn add_layer(&mut self, id: &str) {
         self.layers.insert(
             id.to_string(),
             OciProgressLayer {
                 id: id.to_string(),
                 phase: OciProgressLayerPhase::Waiting,
-                value: 0,
-                total: size as u64,
+                indication: OciProgressIndication::Spinner { message: None },
             },
         );
     }
 
-    pub fn downloading_layer(&mut self, id: &str, downloaded: usize, total: usize) {
+    pub fn downloading_layer(&mut self, id: &str, downloaded: u64, total: u64) {
         if let Some(entry) = self.layers.get_mut(id) {
             entry.phase = OciProgressLayerPhase::Downloading;
-            entry.value = downloaded as u64;
-            entry.total = total as u64;
+            entry.indication = OciProgressIndication::ProgressBar {
+                message: None,
+                current: downloaded,
+                total,
+                bytes: true,
+            };
         }
     }
 
-    pub fn downloaded_layer(&mut self, id: &str) {
+    pub fn downloaded_layer(&mut self, id: &str, total: u64) {
         if let Some(entry) = self.layers.get_mut(id) {
             entry.phase = OciProgressLayerPhase::Downloaded;
-            entry.value = entry.total;
+            entry.indication = OciProgressIndication::Completed {
+                message: None,
+                total: Some(total),
+                bytes: true,
+            };
         }
     }
 
-    pub fn extracting_layer(&mut self, id: &str, extracted: usize, total: usize) {
+    pub fn start_assemble(&mut self) {
+        self.phase = OciProgressPhase::Assemble;
+        self.indication = OciProgressIndication::Hidden;
+    }
+
+    pub fn start_extracting_layer(&mut self, id: &str) {
         if let Some(entry) = self.layers.get_mut(id) {
             entry.phase = OciProgressLayerPhase::Extracting;
-            entry.value = extracted as u64;
-            entry.total = total as u64;
+            entry.indication = OciProgressIndication::Spinner { message: None };
         }
     }
 
-    pub fn extracted_layer(&mut self, id: &str) {
+    pub fn extracting_layer(&mut self, id: &str, file: &str) {
+        if let Some(entry) = self.layers.get_mut(id) {
+            entry.phase = OciProgressLayerPhase::Extracting;
+            entry.indication = OciProgressIndication::Spinner {
+                message: Some(file.to_string()),
+            };
+        }
+    }
+
+    pub fn extracted_layer(&mut self, id: &str, count: u64, total_size: u64) {
         if let Some(entry) = self.layers.get_mut(id) {
             entry.phase = OciProgressLayerPhase::Extracted;
-            entry.value = entry.total;
+            entry.indication = OciProgressIndication::Completed {
+                message: Some(format!("{} files", count)),
+                total: Some(total_size),
+                bytes: true,
+            };
+        }
+    }
+
+    pub fn start_packing(&mut self) {
+        self.phase = OciProgressPhase::Pack;
+        for layer in self.layers.values_mut() {
+            layer.indication = OciProgressIndication::Hidden;
+        }
+        self.indication = OciProgressIndication::Spinner { message: None };
+    }
+
+    pub fn complete(&mut self, size: u64) {
+        self.phase = OciProgressPhase::Complete;
+        self.indication = OciProgressIndication::Completed {
+            message: None,
+            total: Some(size),
+            bytes: true,
         }
     }
 }
 
 #[derive(Clone, Debug)]
 pub enum OciProgressPhase {
+    Started,
     Resolving,
     Resolved,
-    ConfigAcquire,
-    LayerAcquire,
-    Packing,
+    ConfigDownload,
+    LayerDownload,
+    Assemble,
+    Pack,
     Complete,
 }
 
+#[derive(Clone, Debug)]
+pub enum OciProgressIndication {
+    Hidden,
+
+    ProgressBar {
+        message: Option<String>,
+        current: u64,
+        total: u64,
+        bytes: bool,
+    },
+
+    Spinner {
+        message: Option<String>,
+    },
+
+    Completed {
+        message: Option<String>,
+        total: Option<u64>,
+        bytes: bool,
+    },
+}
+
 #[derive(Clone, Debug)]
 pub struct OciProgressLayer {
     pub id: String,
     pub phase: OciProgressLayerPhase,
-    pub value: u64,
-    pub total: u64,
+    pub indication: OciProgressIndication,
 }
 
 #[derive(Clone, Debug)]
@@ -99,16 +175,25 @@ pub enum OciProgressLayerPhase {
 
 #[derive(Clone)]
 pub struct OciProgressContext {
-    sender: Sender<OciProgress>,
+    sender: watch::Sender<OciProgress>,
 }
 
 impl OciProgressContext {
-    pub fn new(sender: Sender<OciProgress>) -> OciProgressContext {
+    pub fn create() -> (OciProgressContext, watch::Receiver<OciProgress>) {
+        let (sender, receiver) = watch::channel(OciProgress::new());
+        (OciProgressContext::new(sender), receiver)
+    }
+
+    pub fn new(sender: watch::Sender<OciProgress>) -> OciProgressContext {
         OciProgressContext { sender }
     }
 
     pub fn update(&self, progress: &OciProgress) {
-        let _ = self.sender.try_send(progress.clone());
+        let _ = self.sender.send(progress.clone());
+    }
+
+    pub fn subscribe(&self) -> watch::Receiver<OciProgress> {
+        self.sender.subscribe()
     }
 }
 
@@ -137,4 +222,17 @@ impl OciBoundProgress {
         function(&mut progress);
         self.context.update(&progress);
     }
+
+    pub async fn also_update(&self, context: OciProgressContext) -> JoinHandle<()> {
+        let progress = self.instance.lock().await.clone();
+        context.update(&progress);
+        let mut receiver = self.context.subscribe();
+        tokio::task::spawn(async move {
+            while (receiver.changed().await).is_ok() {
+                context
+                    .sender
+                    .send_replace(receiver.borrow_and_update().clone());
+            }
+        })
+    }
 }

crates/oci/src/registry.rs

@@ -7,7 +7,7 @@ use reqwest::{Client, RequestBuilder, Response, StatusCode};
 use tokio::{fs::File, io::AsyncWriteExt};
 use url::Url;
 
-use crate::progress::OciBoundProgress;
+use crate::{name::ImageName, progress::OciBoundProgress, schema::OciSchema};
 
 #[derive(Clone, Debug)]
 pub struct OciPlatform {
@@ -149,26 +149,22 @@ impl OciRegistryClient {
         ))?;
         let mut response = self.call(self.agent.get(url.as_str())).await?;
         let mut size: u64 = 0;
-        let mut last_progress_size: u64 = 0;
         while let Some(chunk) = response.chunk().await? {
             dest.write_all(&chunk).await?;
             size += chunk.len() as u64;
 
-            if (size - last_progress_size) > (5 * 1024 * 1024) {
-                last_progress_size = size;
             if let Some(ref progress) = progress {
                 progress
                     .update(|progress| {
                         progress.downloading_layer(
                             descriptor.digest(),
-                                size as usize,
-                                descriptor.size() as usize,
+                            size,
+                            descriptor.size() as u64,
                         );
                     })
                     .await;
             }
         }
-        }
         Ok(size)
     }
 
@@ -176,11 +172,11 @@ impl OciRegistryClient {
         &mut self,
         name: N,
         reference: R,
-    ) -> Result<(ImageManifest, String)> {
+    ) -> Result<(OciSchema<ImageManifest>, String)> {
         let url = self.url.join(&format!(
             "/v2/{}/manifests/{}",
             name.as_ref(),
-            reference.as_ref()
+            reference.as_ref(),
         ))?;
         let accept = format!(
             "{}, {}, {}, {}",
@@ -198,20 +194,28 @@ impl OciRegistryClient {
             .ok_or_else(|| anyhow!("fetching manifest did not yield a content digest"))?
             .to_str()?
             .to_string();
-        let manifest = serde_json::from_str(&response.text().await?)?;
-        Ok((manifest, digest))
+        let bytes = response.bytes().await?;
+        let manifest = serde_json::from_slice(&bytes)?;
+        Ok((OciSchema::new(bytes.to_vec(), manifest), digest))
     }
 
     pub async fn get_manifest_with_digest<N: AsRef<str>, R: AsRef<str>>(
         &mut self,
         name: N,
-        reference: R,
-    ) -> Result<(ImageManifest, String)> {
-        let url = self.url.join(&format!(
-            "/v2/{}/manifests/{}",
-            name.as_ref(),
-            reference.as_ref()
-        ))?;
+        reference: Option<R>,
+        digest: Option<N>,
+    ) -> Result<(OciSchema<ImageManifest>, Option<Descriptor>, String)> {
+        let what = digest
+            .as_ref()
+            .map(|x| x.as_ref().to_string())
+            .unwrap_or_else(|| {
+                reference
+                    .map(|x| x.as_ref().to_string())
+                    .unwrap_or_else(|| ImageName::DEFAULT_IMAGE_TAG.to_string())
+            });
+        let url = self
+            .url
+            .join(&format!("/v2/{}/manifests/{}", name.as_ref(), what,))?;
         let accept = format!(
             "{}, {}, {}, {}",
             MediaType::ImageManifest.to_docker_v2s2()?,
@@ -234,18 +238,21 @@ impl OciRegistryClient {
             let descriptor = self
                 .pick_manifest(index)
                 .ok_or_else(|| anyhow!("unable to pick manifest from index"))?;
-            return self
+            let (manifest, digest) = self
                 .get_raw_manifest_with_digest(name, descriptor.digest())
-                .await;
+                .await?;
+            return Ok((manifest, Some(descriptor), digest));
         }
         let digest = response
             .headers()
             .get("Docker-Content-Digest")
-            .ok_or_else(|| anyhow!("fetching manifest did not yield a content digest"))?
-            .to_str()?
-            .to_string();
-        let manifest = serde_json::from_str(&response.text().await?)?;
-        Ok((manifest, digest))
+            .and_then(|x| x.to_str().ok())
+            .map(|x| x.to_string())
+            .or_else(|| digest.map(|x: N| x.as_ref().to_string()))
+            .ok_or_else(|| anyhow!("fetching manifest did not yield a content digest"))?;
+        let bytes = response.bytes().await?;
+        let manifest = serde_json::from_slice(&bytes)?;
+        Ok((OciSchema::new(bytes.to_vec(), manifest), None, digest))
     }
 
     fn pick_manifest(&mut self, index: ImageIndex) -> Option<Descriptor> {

crates/oci/src/schema.rs

@@ -0,0 +1,29 @@
+use std::fmt::Debug;
+
+#[derive(Clone, Debug)]
+pub struct OciSchema<T: Clone + Debug> {
+    raw: Vec<u8>,
+    item: T,
+}
+
+impl<T: Clone + Debug> OciSchema<T> {
+    pub fn new(raw: Vec<u8>, item: T) -> OciSchema<T> {
+        OciSchema { raw, item }
+    }
+
+    pub fn raw(&self) -> &[u8] {
+        &self.raw
+    }
+
+    pub fn item(&self) -> &T {
+        &self.item
+    }
+
+    pub fn into_raw(self) -> Vec<u8> {
+        self.raw
+    }
+
+    pub fn into_item(self) -> T {
+        self.item
+    }
+}

crates/oci/src/vfs.rs

@@ -194,7 +194,7 @@ impl VfsTree {
         }
     }
 
-    pub fn insert_tar_entry<X: AsyncRead + Unpin>(&mut self, entry: &Entry<X>) -> Result<()> {
+    pub fn insert_tar_entry<X: AsyncRead + Unpin>(&mut self, entry: &Entry<X>) -> Result<&VfsNode> {
         let mut meta = VfsNode::from(entry)?;
         let path = entry.path()?.to_path_buf();
         let parent = if let Some(parent) = path.parent() {
@@ -218,8 +218,11 @@ impl VfsTree {
                 meta.children = old.children;
             }
         }
-        parent.children.push(meta);
-        Ok(())
+        parent.children.push(meta.clone());
+        let Some(reference) = parent.children.iter().find(|child| child.name == meta.name) else {
+            return Err(anyhow!("unable to find inserted child in vfs"));
+        };
+        Ok(reference)
     }
 
     pub fn set_disk_path(&mut self, path: &Path, disk_path: &Path) -> Result<()> {

crates/runtime/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-runtime"
-description = "Runtime for running guests on the krata hypervisor."
+description = "Runtime for running guests on the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true
@@ -12,18 +12,22 @@ resolver = "2"
 anyhow = { workspace = true }
 backhand = { workspace = true }
 ipnetwork = { workspace = true }
-krata = { path = "../krata", version = "^0.0.9" }
+krata = { path = "../krata", version = "^0.0.12" }
 krata-advmac = { workspace = true }
-krata-oci = { path = "../oci", version = "^0.0.9" }
+krata-oci = { path = "../oci", version = "^0.0.12" }
 log = { workspace = true }
-loopdev-3 = { workspace = true }
 serde_json = { workspace = true }
 tokio = { workspace = true }
 uuid = { workspace = true }
-krata-xenclient = { path = "../xen/xenclient", version = "^0.0.9" }
-krata-xenevtchn = { path = "../xen/xenevtchn", version = "^0.0.9" }
-krata-xengnt = { path = "../xen/xengnt", version = "^0.0.9" }
-krata-xenstore = { path = "../xen/xenstore", version = "^0.0.9" }
+krata-loopdev = { path = "../loopdev", version = "^0.0.12" }
+krata-xencall = { path = "../xen/xencall", version = "^0.0.12" }
+krata-xenclient = { path = "../xen/xenclient", version = "^0.0.12" }
+krata-xenevtchn = { path = "../xen/xenevtchn", version = "^0.0.12" }
+krata-xengnt = { path = "../xen/xengnt", version = "^0.0.12" }
+krata-xenplatform = { path = "../xen/xenplatform", version = "^0.0.12" }
+krata-xenstore = { path = "../xen/xenstore", version = "^0.0.12" }
+walkdir = { workspace = true }
+indexmap = { workspace = true }
 
 [lib]
 name = "kratart"

crates/runtime/src/autoloop.rs

@@ -1,8 +1,8 @@
 use std::{sync::Arc, time::Duration};
 
 use anyhow::{anyhow, Result};
+use krataloopdev::{LoopControl, LoopDevice};
 use log::debug;
-use loopdev::{LoopControl, LoopDevice};
 use tokio::time::sleep;
 use xenclient::BlockDeviceRef;
 

crates/runtime/src/cfgblk.rs

@@ -1,21 +1,22 @@
 use anyhow::Result;
-use backhand::{FilesystemWriter, NodeHeader};
+use backhand::compression::Compressor;
+use backhand::{FilesystemCompressor, FilesystemWriter, NodeHeader};
 use krata::launchcfg::LaunchInfo;
-use krataoci::packer::OciImagePacked;
+use krataoci::packer::OciPackedImage;
 use log::trace;
 use std::fs;
 use std::fs::File;
 use std::path::PathBuf;
 use uuid::Uuid;
 
-pub struct ConfigBlock<'a> {
-    pub image: &'a OciImagePacked,
+pub struct ConfigBlock {
+    pub image: OciPackedImage,
     pub file: PathBuf,
     pub dir: PathBuf,
 }
 
-impl ConfigBlock<'_> {
-    pub fn new<'a>(uuid: &Uuid, image: &'a OciImagePacked) -> Result<ConfigBlock<'a>> {
+impl ConfigBlock {
+    pub fn new(uuid: &Uuid, image: OciPackedImage) -> Result<ConfigBlock> {
         let mut dir = std::env::temp_dir().clone();
         dir.push(format!("krata-cfg-{}", uuid));
         fs::create_dir_all(&dir)?;
@@ -26,9 +27,10 @@ impl ConfigBlock<'_> {
 
     pub fn build(&self, launch_config: &LaunchInfo) -> Result<()> {
         trace!("build launch_config={:?}", launch_config);
-        let manifest = self.image.config.to_string()?;
+        let config = self.image.config.raw();
         let launch = serde_json::to_string(launch_config)?;
         let mut writer = FilesystemWriter::default();
+        writer.set_compressor(FilesystemCompressor::new(Compressor::Gzip, None)?);
         writer.push_dir(
             "/image",
             NodeHeader {
@@ -39,7 +41,7 @@ impl ConfigBlock<'_> {
             },
         )?;
         writer.push_file(
-            manifest.as_bytes(),
+            config,
             "/image/config.json",
             NodeHeader {
                 permissions: 384,

crates/runtime/src/channel.rs

@@ -375,7 +375,10 @@ impl KrataChannelBackendProcessor {
                         };
 
                         ring_ref = self.use_reserved_ref.unwrap_or(ring_ref);
-
+                        debug!(
+                            "channel backend for domain {} channel {}: ring-ref={} port={}",
+                            self.domid, self.id, ring_ref, port,
+                        );
                         break (ring_ref, port);
                     }
                 }
@@ -389,14 +392,24 @@ impl KrataChannelBackendProcessor {
         self.store
             .write_string(format!("{}/state", self.backend), "4")
             .await?;
-        let memory = self.gnttab.map_grant_refs(
+        let memory = self
+            .gnttab
+            .map_grant_refs(
                 vec![GrantRef {
                     domid: self.domid,
                     reference: ring_ref as u32,
                 }],
                 true,
                 true,
-        )?;
+            )
+            .map_err(|e| {
+                anyhow!(
+                    "failed to map grant ref {} for domid {}: {}",
+                    ring_ref,
+                    self.domid,
+                    e
+                )
+            })?;
         let mut channel = self.evtchn.bind(self.domid, port).await?;
         unsafe {
             let buffer = self.read_output_buffer(channel.local_port, &memory).await?;

crates/runtime/src/ip.rs

@@ -0,0 +1,331 @@
+use std::{
+    collections::HashMap,
+    net::{Ipv4Addr, Ipv6Addr},
+    str::FromStr,
+    sync::Arc,
+};
+
+use anyhow::{anyhow, Result};
+use ipnetwork::{Ipv4Network, Ipv6Network};
+use log::error;
+use tokio::sync::RwLock;
+use uuid::Uuid;
+use xenstore::{XsdClient, XsdInterface};
+
+#[derive(Default, Clone)]
+pub struct IpVendorState {
+    pub ipv4: HashMap<Ipv4Addr, Uuid>,
+    pub ipv6: HashMap<Ipv6Addr, Uuid>,
+    pub pending_ipv4: HashMap<Ipv4Addr, Uuid>,
+    pub pending_ipv6: HashMap<Ipv6Addr, Uuid>,
+}
+
+#[derive(Clone)]
+pub struct IpVendor {
+    store: XsdClient,
+    host_uuid: Uuid,
+    ipv4_network: Ipv4Network,
+    ipv6_network: Ipv6Network,
+    gateway_ipv4: Ipv4Addr,
+    gateway_ipv6: Ipv6Addr,
+    state: Arc<RwLock<IpVendorState>>,
+}
+
+pub struct IpAssignment {
+    vendor: IpVendor,
+    pub uuid: Uuid,
+    pub ipv4: Ipv4Addr,
+    pub ipv6: Ipv6Addr,
+    pub ipv4_prefix: u8,
+    pub ipv6_prefix: u8,
+    pub gateway_ipv4: Ipv4Addr,
+    pub gateway_ipv6: Ipv6Addr,
+    pub committed: bool,
+}
+
+impl IpAssignment {
+    pub async fn commit(&mut self) -> Result<()> {
+        self.vendor.commit(self).await?;
+        self.committed = true;
+        Ok(())
+    }
+}
+
+impl Drop for IpAssignment {
+    fn drop(&mut self) {
+        if !self.committed {
+            let ipv4 = self.ipv4;
+            let ipv6 = self.ipv6;
+            let uuid = self.uuid;
+            let vendor = self.vendor.clone();
+            tokio::task::spawn(async move {
+                let _ = vendor.recall_raw(ipv4, ipv6, uuid, true).await;
+            });
+        }
+    }
+}
+
+impl IpVendor {
+    pub async fn new(
+        store: XsdClient,
+        host_uuid: Uuid,
+        ipv4_network: Ipv4Network,
+        ipv6_network: Ipv6Network,
+    ) -> Result<Self> {
+        let mut state = IpVendor::fetch_stored_state(&store).await?;
+        let (gateway_ipv4, gateway_ipv6) =
+            IpVendor::allocate_ipset(&mut state, host_uuid, ipv4_network, ipv6_network)?;
+        let vend = IpVendor {
+            store,
+            host_uuid,
+            ipv4_network,
+            ipv6_network,
+            gateway_ipv4,
+            gateway_ipv6,
+            state: Arc::new(RwLock::new(state)),
+        };
+        Ok(vend)
+    }
+
+    async fn fetch_stored_state(store: &XsdClient) -> Result<IpVendorState> {
+        let mut state = IpVendorState::default();
+        for domid_candidate in store.list("/local/domain").await? {
+            let dom_path = format!("/local/domain/{}", domid_candidate);
+            let Some(uuid) = store
+                .read_string(format!("{}/krata/uuid", dom_path))
+                .await?
+                .and_then(|x| Uuid::from_str(&x).ok())
+            else {
+                continue;
+            };
+            let assigned_ipv4 = store
+                .read_string(format!("{}/krata/network/guest/ipv4", dom_path))
+                .await?
+                .and_then(|x| Ipv4Network::from_str(&x).ok());
+            let assigned_ipv6 = store
+                .read_string(format!("{}/krata/network/guest/ipv6", dom_path))
+                .await?
+                .and_then(|x| Ipv6Network::from_str(&x).ok());
+
+            if let Some(existing_ipv4) = assigned_ipv4 {
+                if let Some(previous) = state.ipv4.insert(existing_ipv4.ip(), uuid) {
+                    error!("ipv4 conflict detected: guest {} owned {} but {} also claimed to own it, giving it to {}", previous, existing_ipv4.ip(), uuid, uuid);
+                }
+            }
+
+            if let Some(existing_ipv6) = assigned_ipv6 {
+                if let Some(previous) = state.ipv6.insert(existing_ipv6.ip(), uuid) {
+                    error!("ipv6 conflict detected: guest {} owned {} but {} also claimed to own it, giving it to {}", previous, existing_ipv6.ip(), uuid, uuid);
+                }
+            }
+        }
+        Ok(state)
+    }
+
+    fn allocate_ipset(
+        state: &mut IpVendorState,
+        uuid: Uuid,
+        ipv4_network: Ipv4Network,
+        ipv6_network: Ipv6Network,
+    ) -> Result<(Ipv4Addr, Ipv6Addr)> {
+        let mut found_ipv4: Option<Ipv4Addr> = None;
+        for ip in ipv4_network.iter() {
+            if ip.is_loopback() || ip.is_multicast() || ip.is_broadcast() {
+                continue;
+            }
+
+            if !ip.is_private() {
+                continue;
+            }
+
+            let last = ip.octets()[3];
+            if last == 0 || last > 250 {
+                continue;
+            }
+
+            if state.ipv4.contains_key(&ip) {
+                continue;
+            }
+            found_ipv4 = Some(ip);
+            break;
+        }
+
+        let mut found_ipv6: Option<Ipv6Addr> = None;
+        for ip in ipv6_network.iter() {
+            if ip.is_loopback() || ip.is_multicast() {
+                continue;
+            }
+
+            if state.ipv6.contains_key(&ip) {
+                continue;
+            }
+            found_ipv6 = Some(ip);
+            break;
+        }
+
+        let Some(ipv4) = found_ipv4 else {
+            return Err(anyhow!(
+                "unable to allocate ipv4 address, assigned network is exhausted"
+            ));
+        };
+
+        let Some(ipv6) = found_ipv6 else {
+            return Err(anyhow!(
+                "unable to allocate ipv6 address, assigned network is exhausted"
+            ));
+        };
+
+        state.ipv4.insert(ipv4, uuid);
+        state.ipv6.insert(ipv6, uuid);
+
+        Ok((ipv4, ipv6))
+    }
+
+    pub async fn assign(&self, uuid: Uuid) -> Result<IpAssignment> {
+        let mut state = self.state.write().await;
+        let (ipv4, ipv6) =
+            IpVendor::allocate_ipset(&mut state, uuid, self.ipv4_network, self.ipv6_network)?;
+        state.pending_ipv4.insert(ipv4, uuid);
+        state.pending_ipv6.insert(ipv6, uuid);
+        Ok(IpAssignment {
+            vendor: self.clone(),
+            uuid,
+            ipv4,
+            ipv6,
+            ipv4_prefix: self.ipv4_network.prefix(),
+            ipv6_prefix: self.ipv6_network.prefix(),
+            gateway_ipv4: self.gateway_ipv4,
+            gateway_ipv6: self.gateway_ipv6,
+            committed: false,
+        })
+    }
+
+    pub async fn commit(&self, assignment: &IpAssignment) -> Result<()> {
+        let mut state = self.state.write().await;
+        if state.pending_ipv4.remove(&assignment.ipv4) != Some(assignment.uuid) {
+            return Err(anyhow!("matching pending ipv4 assignment was not found"));
+        }
+        if state.pending_ipv6.remove(&assignment.ipv6) != Some(assignment.uuid) {
+            return Err(anyhow!("matching pending ipv6 assignment was not found"));
+        }
+        Ok(())
+    }
+
+    async fn recall_raw(
+        &self,
+        ipv4: Ipv4Addr,
+        ipv6: Ipv6Addr,
+        uuid: Uuid,
+        pending: bool,
+    ) -> Result<()> {
+        let mut state = self.state.write().await;
+        if pending {
+            if state.pending_ipv4.remove(&ipv4) != Some(uuid) {
+                return Err(anyhow!("matching pending ipv4 assignment was not found"));
+            }
+            if state.pending_ipv6.remove(&ipv6) != Some(uuid) {
+                return Err(anyhow!("matching pending ipv6 assignment was not found"));
+            }
+        }
+
+        if state.ipv4.remove(&ipv4) != Some(uuid) {
+            return Err(anyhow!("matching allocated ipv4 assignment was not found"));
+        }
+
+        if state.ipv6.remove(&ipv6) != Some(uuid) {
+            return Err(anyhow!("matching allocated ipv6 assignment was not found"));
+        }
+        Ok(())
+    }
+
+    pub async fn recall(&self, assignment: &IpAssignment) -> Result<()> {
+        self.recall_raw(assignment.ipv4, assignment.ipv6, assignment.uuid, false)
+            .await?;
+        Ok(())
+    }
+
+    pub async fn reload(&self) -> Result<()> {
+        let mut state = self.state.write().await;
+        let mut intermediate = IpVendor::fetch_stored_state(&self.store).await?;
+        intermediate.ipv4.insert(self.gateway_ipv4, self.host_uuid);
+        intermediate.ipv6.insert(self.gateway_ipv6, self.host_uuid);
+        for (ipv4, uuid) in &state.pending_ipv4 {
+            if let Some(previous) = intermediate.ipv4.insert(*ipv4, *uuid) {
+                error!("ipv4 conflict detected: guest {} owned (pending) {} but {} also claimed to own it, giving it to {}", previous, ipv4, uuid, uuid);
+            }
+            intermediate.pending_ipv4.insert(*ipv4, *uuid);
+        }
+        for (ipv6, uuid) in &state.pending_ipv6 {
+            if let Some(previous) = intermediate.ipv6.insert(*ipv6, *uuid) {
+                error!("ipv6 conflict detected: guest {} owned (pending) {} but {} also claimed to own it, giving it to {}", previous, ipv6, uuid, uuid);
+            }
+            intermediate.pending_ipv6.insert(*ipv6, *uuid);
+        }
+        *state = intermediate;
+        Ok(())
+    }
+
+    pub async fn read_domain_assignment(
+        &self,
+        uuid: Uuid,
+        domid: u32,
+    ) -> Result<Option<IpAssignment>> {
+        let dom_path = format!("/local/domain/{}", domid);
+        let Some(guest_ipv4) = self
+            .store
+            .read_string(format!("{}/krata/network/guest/ipv4", dom_path))
+            .await?
+        else {
+            return Ok(None);
+        };
+        let Some(guest_ipv6) = self
+            .store
+            .read_string(format!("{}/krata/network/guest/ipv6", dom_path))
+            .await?
+        else {
+            return Ok(None);
+        };
+        let Some(gateway_ipv4) = self
+            .store
+            .read_string(format!("{}/krata/network/gateway/ipv4", dom_path))
+            .await?
+        else {
+            return Ok(None);
+        };
+        let Some(gateway_ipv6) = self
+            .store
+            .read_string(format!("{}/krata/network/gateway/ipv6", dom_path))
+            .await?
+        else {
+            return Ok(None);
+        };
+
+        let Some(guest_ipv4) = Ipv4Network::from_str(&guest_ipv4).ok() else {
+            return Ok(None);
+        };
+        let Some(guest_ipv6) = Ipv6Network::from_str(&guest_ipv6).ok() else {
+            return Ok(None);
+        };
+        let Some(gateway_ipv4) = Ipv4Network::from_str(&gateway_ipv4).ok() else {
+            return Ok(None);
+        };
+        let Some(gateway_ipv6) = Ipv6Network::from_str(&gateway_ipv6).ok() else {
+            return Ok(None);
+        };
+        Ok(Some(IpAssignment {
+            vendor: self.clone(),
+            uuid,
+            ipv4: guest_ipv4.ip(),
+            ipv4_prefix: guest_ipv4.prefix(),
+            ipv6: guest_ipv6.ip(),
+            ipv6_prefix: guest_ipv6.prefix(),
+            gateway_ipv4: gateway_ipv4.ip(),
+            gateway_ipv6: gateway_ipv6.ip(),
+            committed: true,
+        }))
+    }
+
+    pub async fn read(&self) -> Result<IpVendorState> {
+        Ok(self.state.read().await.clone())
+    }
+}

crates/runtime/src/launch.rs

@@ -1,36 +1,45 @@
 use std::collections::HashMap;
-use std::net::{IpAddr, Ipv6Addr};
+use std::fs;
+use std::net::IpAddr;
+use std::path::PathBuf;
 use std::sync::Arc;
-use std::{fs, net::Ipv4Addr, str::FromStr};
 
 use advmac::MacAddr6;
 use anyhow::{anyhow, Result};
-use ipnetwork::{IpNetwork, Ipv4Network};
+use ipnetwork::IpNetwork;
 use krata::launchcfg::{
     LaunchInfo, LaunchNetwork, LaunchNetworkIpv4, LaunchNetworkIpv6, LaunchNetworkResolver,
     LaunchPackedFormat, LaunchRoot,
 };
-use krataoci::packer::OciImagePacked;
+use krataoci::packer::OciPackedImage;
 use tokio::sync::Semaphore;
 use uuid::Uuid;
 use xenclient::{DomainChannel, DomainConfig, DomainDisk, DomainNetworkInterface};
-use xenstore::XsdInterface;
+use xenplatform::domain::BaseDomainConfig;
 
 use crate::cfgblk::ConfigBlock;
 use crate::RuntimeContext;
 
 use super::{GuestInfo, GuestState};
 
+pub use xenclient::{
+    pci::PciBdf, DomainPciDevice as PciDevice, DomainPciRdmReservePolicy as PciRdmReservePolicy,
+};
+
 pub struct GuestLaunchRequest {
     pub format: LaunchPackedFormat,
+    pub kernel: Vec<u8>,
+    pub initrd: Vec<u8>,
     pub uuid: Option<Uuid>,
     pub name: Option<String>,
     pub vcpus: u32,
     pub mem: u64,
     pub env: HashMap<String, String>,
     pub run: Option<Vec<String>>,
+    pub pcis: Vec<PciDevice>,
     pub debug: bool,
-    pub image: OciImagePacked,
+    pub image: OciPackedImage,
+    pub addons_image: Option<PathBuf>,
 }
 
 pub struct GuestLauncher {
@@ -57,13 +66,7 @@ impl GuestLauncher {
         container_mac.set_multicast(false);
 
         let _launch_permit = self.launch_semaphore.acquire().await?;
-        let guest_ipv4 = self.allocate_ipv4(context).await?;
-        let guest_ipv6 = container_mac.to_link_local_ipv6();
-        let gateway_ipv4 = "10.75.70.1";
-        let gateway_ipv6 = "fe80::1";
-        let ipv4_network_mask: u32 = 16;
-        let ipv6_network_mask: u32 = 10;
-
+        let mut ip = context.ipvendor.assign(uuid).await?;
         let launch_config = LaunchInfo {
             root: LaunchRoot {
                 format: request.format.clone(),
@@ -78,12 +81,12 @@ impl GuestLauncher {
             network: Some(LaunchNetwork {
                 link: "eth0".to_string(),
                 ipv4: LaunchNetworkIpv4 {
-                    address: format!("{}/{}", guest_ipv4, ipv4_network_mask),
-                    gateway: gateway_ipv4.to_string(),
+                    address: format!("{}/{}", ip.ipv4, ip.ipv4_prefix),
+                    gateway: ip.gateway_ipv4.to_string(),
                 },
                 ipv6: LaunchNetworkIpv6 {
-                    address: format!("{}/{}", guest_ipv6, ipv6_network_mask),
-                    gateway: gateway_ipv6.to_string(),
+                    address: format!("{}/{}", ip.ipv6, ip.ipv6_prefix),
+                    gateway: ip.gateway_ipv6.to_string(),
                 },
                 resolver: LaunchNetworkResolver {
                     nameservers: vec![
@@ -98,8 +101,10 @@ impl GuestLauncher {
             run: request.run,
         };
 
-        let cfgblk = ConfigBlock::new(&uuid, &request.image)?;
-        cfgblk.build(&launch_config)?;
+        let cfgblk = ConfigBlock::new(&uuid, request.image.clone())?;
+        let cfgblk_file = cfgblk.file.clone();
+        let cfgblk_dir = cfgblk.dir.clone();
+        tokio::task::spawn_blocking(move || cfgblk.build(&launch_config)).await??;
 
         let image_squashfs_path = request
             .image
@@ -107,47 +112,91 @@ impl GuestLauncher {
             .to_str()
             .ok_or_else(|| anyhow!("failed to convert image path to string"))?;
 
-        let cfgblk_dir_path = cfgblk
-            .dir
+        let cfgblk_dir_path = cfgblk_dir
             .to_str()
             .ok_or_else(|| anyhow!("failed to convert cfgblk directory path to string"))?;
-        let cfgblk_squashfs_path = cfgblk
-            .file
+        let cfgblk_squashfs_path = cfgblk_file
             .to_str()
             .ok_or_else(|| anyhow!("failed to convert cfgblk squashfs path to string"))?;
+        let addons_squashfs_path = request
+            .addons_image
+            .map(|x| x.to_str().map(|x| x.to_string()))
+            .map(|x| {
+                Some(x.ok_or_else(|| anyhow!("failed to convert addons squashfs path to string")))
+            })
+            .unwrap_or(None);
+
+        let addons_squashfs_path = if let Some(path) = addons_squashfs_path {
+            Some(path?)
+        } else {
+            None
+        };
 
         let image_squashfs_loop = context.autoloop.loopify(image_squashfs_path)?;
         let cfgblk_squashfs_loop = context.autoloop.loopify(cfgblk_squashfs_path)?;
-
-        let cmdline_options = [
-            if request.debug { "debug" } else { "quiet" },
-            "elevator=noop",
-        ];
+        let addons_squashfs_loop = if let Some(ref addons_squashfs_path) = addons_squashfs_path {
+            Some(context.autoloop.loopify(addons_squashfs_path)?)
+        } else {
+            None
+        };
+        let mut cmdline_options = ["console=hvc0"].to_vec();
+        if !request.debug {
+            cmdline_options.push("quiet");
+        }
         let cmdline = cmdline_options.join(" ");
 
         let guest_mac_string = container_mac.to_string().replace('-', ":");
         let gateway_mac_string = gateway_mac.to_string().replace('-', ":");
 
+        let mut disks = vec![
+            DomainDisk {
+                vdev: "xvda".to_string(),
+                block: image_squashfs_loop.clone(),
+                writable: false,
+            },
+            DomainDisk {
+                vdev: "xvdb".to_string(),
+                block: cfgblk_squashfs_loop.clone(),
+                writable: false,
+            },
+        ];
+
+        if let Some(ref addons) = addons_squashfs_loop {
+            disks.push(DomainDisk {
+                vdev: "xvdc".to_string(),
+                block: addons.clone(),
+                writable: false,
+            });
+        }
+
+        let mut loops = vec![
+            format!("{}:{}:none", image_squashfs_loop.path, image_squashfs_path),
+            format!(
+                "{}:{}:{}",
+                cfgblk_squashfs_loop.path, cfgblk_squashfs_path, cfgblk_dir_path
+            ),
+        ];
+
+        if let Some(ref addons) = addons_squashfs_loop {
+            loops.push(format!(
+                "{}:{}:none",
+                addons.path,
+                addons_squashfs_path
+                    .clone()
+                    .ok_or_else(|| anyhow!("addons squashfs path missing"))?
+            ));
+        }
+
         let mut extra_keys = vec![
             ("krata/uuid".to_string(), uuid.to_string()),
-            (
-                "krata/loops".to_string(),
-                format!(
-                    "{}:{}:none,{}:{}:{}",
-                    &image_squashfs_loop.path,
-                    image_squashfs_path,
-                    &cfgblk_squashfs_loop.path,
-                    cfgblk_squashfs_path,
-                    cfgblk_dir_path,
-                ),
-            ),
+            ("krata/loops".to_string(), loops.join(",")),
             (
                 "krata/network/guest/ipv4".to_string(),
-                format!("{}/{}", guest_ipv4, ipv4_network_mask),
+                format!("{}/{}", ip.ipv4, ip.ipv4_prefix),
             ),
             (
                 "krata/network/guest/ipv6".to_string(),
-                format!("{}/{}", guest_ipv6, ipv6_network_mask),
+                format!("{}/{}", ip.ipv6, ip.ipv6_prefix),
             ),
             (
                 "krata/network/guest/mac".to_string(),
@@ -155,11 +204,11 @@ impl GuestLauncher {
             ),
             (
                 "krata/network/gateway/ipv4".to_string(),
-                format!("{}/{}", gateway_ipv4, ipv4_network_mask),
+                format!("{}/{}", ip.gateway_ipv4, ip.ipv4_prefix),
             ),
             (
                 "krata/network/gateway/ipv6".to_string(),
-                format!("{}/{}", gateway_ipv6, ipv6_network_mask),
+                format!("{}/{}", ip.gateway_ipv6, ip.ipv6_prefix),
             ),
             (
                 "krata/network/gateway/mac".to_string(),
@@ -172,108 +221,65 @@ impl GuestLauncher {
         }
 
         let config = DomainConfig {
-            backend_domid: 0,
-            name: &xen_name,
+            base: BaseDomainConfig {
                 max_vcpus: request.vcpus,
                 mem_mb: request.mem,
-            kernel_path: &context.kernel,
-            initrd_path: &context.initrd,
-            cmdline: &cmdline,
-            use_console_backend: Some("krata-console"),
-            disks: vec![
-                DomainDisk {
-                    vdev: "xvda",
-                    block: &image_squashfs_loop,
-                    writable: false,
+                kernel: request.kernel,
+                initrd: request.initrd,
+                cmdline,
+                uuid,
+                owner_domid: 0,
+                enable_iommu: !request.pcis.is_empty(),
             },
-                DomainDisk {
-                    vdev: "xvdb",
-                    block: &cfgblk_squashfs_loop,
-                    writable: false,
-                },
-            ],
+            backend_domid: 0,
+            name: xen_name,
+            swap_console_backend: Some("krata-console".to_string()),
+            disks,
             channels: vec![DomainChannel {
                 typ: "krata-channel".to_string(),
                 initialized: false,
             }],
             vifs: vec![DomainNetworkInterface {
-                mac: &guest_mac_string,
+                mac: guest_mac_string.clone(),
                 mtu: 1500,
                 bridge: None,
                 script: None,
             }],
+            pcis: request.pcis.clone(),
             filesystems: vec![],
-            event_channels: vec![],
             extra_keys,
             extra_rw_paths: vec!["krata/guest".to_string()],
         };
         match context.xen.create(&config).await {
-            Ok(created) => Ok(GuestInfo {
+            Ok(created) => {
+                ip.commit().await?;
+                Ok(GuestInfo {
                     name: request.name.as_ref().map(|x| x.to_string()),
                     uuid,
                     domid: created.domid,
                     image: request.image.digest,
                     loops: vec![],
-                guest_ipv4: Some(IpNetwork::new(
-                    IpAddr::V4(guest_ipv4),
-                    ipv4_network_mask as u8,
-                )?),
-                guest_ipv6: Some(IpNetwork::new(
-                    IpAddr::V6(guest_ipv6),
-                    ipv6_network_mask as u8,
-                )?),
+                    guest_ipv4: Some(IpNetwork::new(IpAddr::V4(ip.ipv4), ip.ipv4_prefix)?),
+                    guest_ipv6: Some(IpNetwork::new(IpAddr::V6(ip.ipv6), ip.ipv6_prefix)?),
                     guest_mac: Some(guest_mac_string.clone()),
                     gateway_ipv4: Some(IpNetwork::new(
-                    IpAddr::V4(Ipv4Addr::from_str(gateway_ipv4)?),
-                    ipv4_network_mask as u8,
+                        IpAddr::V4(ip.gateway_ipv4),
+                        ip.ipv4_prefix,
                     )?),
                     gateway_ipv6: Some(IpNetwork::new(
-                    IpAddr::V6(Ipv6Addr::from_str(gateway_ipv6)?),
-                    ipv6_network_mask as u8,
+                        IpAddr::V6(ip.gateway_ipv6),
+                        ip.ipv6_prefix,
                     )?),
                     gateway_mac: Some(gateway_mac_string.clone()),
                     state: GuestState { exit_code: None },
-            }),
+                })
+            }
             Err(error) => {
                 let _ = context.autoloop.unloop(&image_squashfs_loop.path).await;
                 let _ = context.autoloop.unloop(&cfgblk_squashfs_loop.path).await;
-                let _ = fs::remove_dir(&cfgblk.dir);
+                let _ = fs::remove_dir(&cfgblk_dir);
                 Err(error.into())
             }
         }
     }
-
-    async fn allocate_ipv4(&self, context: &RuntimeContext) -> Result<Ipv4Addr> {
-        let network = Ipv4Network::new(Ipv4Addr::new(10, 75, 80, 0), 24)?;
-        let mut used: Vec<Ipv4Addr> = vec![];
-        for domid_candidate in context.xen.store.list("/local/domain").await? {
-            let dom_path = format!("/local/domain/{}", domid_candidate);
-            let ip_path = format!("{}/krata/network/guest/ipv4", dom_path);
-            let existing_ip = context.xen.store.read_string(&ip_path).await?;
-            if let Some(existing_ip) = existing_ip {
-                let ipv4_network = Ipv4Network::from_str(&existing_ip)?;
-                used.push(ipv4_network.ip());
-            }
-        }
-
-        let mut found: Option<Ipv4Addr> = None;
-        for ip in network.iter() {
-            let last = ip.octets()[3];
-            if last == 0 || last == 255 {
-                continue;
-            }
-            if !used.contains(&ip) {
-                found = Some(ip);
-                break;
-            }
-        }
-
-        if found.is_none() {
-            return Err(anyhow!(
-                "unable to find ipv4 to allocate to guest, ipv4 addresses are exhausted"
-            ));
-        }
-
-        Ok(found.unwrap())
-    }
 }

crates/runtime/src/lib.rs

@@ -1,13 +1,10 @@
-use std::{
-    fs,
-    path::{Path, PathBuf},
-    str::FromStr,
-    sync::Arc,
-};
+use std::{fs, net::Ipv4Addr, path::PathBuf, str::FromStr, sync::Arc};
 
 use anyhow::{anyhow, Result};
-use ipnetwork::IpNetwork;
-use loopdev::LoopControl;
+use ip::IpVendor;
+use ipnetwork::{IpNetwork, Ipv4Network, Ipv6Network};
+use krataloopdev::LoopControl;
+use log::error;
 use tokio::sync::Semaphore;
 use uuid::Uuid;
 use xenclient::XenClient;
@@ -16,12 +13,21 @@ use xenstore::{XsdClient, XsdInterface};
 use self::{
     autoloop::AutoLoop,
     launch::{GuestLaunchRequest, GuestLauncher},
+    power::PowerManagementContext,
 };
 
 pub mod autoloop;
 pub mod cfgblk;
 pub mod channel;
+pub mod ip;
 pub mod launch;
+pub mod power;
+
+#[cfg(target_arch = "x86_64")]
+type RuntimePlatform = xenplatform::x86pv::X86PvPlatform;
+
+#[cfg(not(target_arch = "x86_64"))]
+type RuntimePlatform = xenplatform::unsupported::UnsupportedPlatform;
 
 pub struct GuestLoopInfo {
     pub device: String,
@@ -51,44 +57,24 @@ pub struct GuestInfo {
 #[derive(Clone)]
 pub struct RuntimeContext {
     pub autoloop: AutoLoop,
-    pub xen: XenClient,
-    pub kernel: String,
-    pub initrd: String,
+    pub xen: XenClient<RuntimePlatform>,
+    pub ipvendor: IpVendor,
 }
 
 impl RuntimeContext {
-    pub async fn new(store: String) -> Result<Self> {
-        let mut image_cache_path = PathBuf::from(&store);
-        image_cache_path.push("cache");
-        fs::create_dir_all(&image_cache_path)?;
-
-        let xen = XenClient::open(0).await?;
-        image_cache_path.push("image");
-        fs::create_dir_all(&image_cache_path)?;
-        let kernel = RuntimeContext::detect_guest_file(&store, "kernel")?;
-        let initrd = RuntimeContext::detect_guest_file(&store, "initrd")?;
-
+    pub async fn new(host_uuid: Uuid) -> Result<Self> {
+        let xen = XenClient::new(0, RuntimePlatform::new()).await?;
+        let ipv4_network = Ipv4Network::new(Ipv4Addr::new(10, 75, 80, 0), 24)?;
+        let ipv6_network = Ipv6Network::from_str("fdd4:1476:6c7e::/48")?;
+        let ipvend =
+            IpVendor::new(xen.store.clone(), host_uuid, ipv4_network, ipv6_network).await?;
         Ok(RuntimeContext {
             autoloop: AutoLoop::new(LoopControl::open()?),
             xen,
-            kernel,
-            initrd,
+            ipvendor: ipvend,
         })
     }
 
-    fn detect_guest_file(store: &str, name: &str) -> Result<String> {
-        let mut path = PathBuf::from(format!("{}/guest/{}", store, name));
-        if path.is_file() {
-            return path_as_string(&path);
-        }
-
-        path = PathBuf::from(format!("/usr/share/krata/guest/{}", name));
-        if path.is_file() {
-            return path_as_string(&path);
-        }
-        Err(anyhow!("unable to find required guest file: {}", name))
-    }
-
     pub async fn list(&self) -> Result<Vec<GuestInfo>> {
         let mut guests: Vec<GuestInfo> = Vec::new();
         for domid_candidate in self.xen.store.list("/local/domain").await? {
@@ -248,18 +234,18 @@ impl RuntimeContext {
 
 #[derive(Clone)]
 pub struct Runtime {
-    store: Arc<String>,
+    host_uuid: Uuid,
     context: RuntimeContext,
     launch_semaphore: Arc<Semaphore>,
 }
 
 impl Runtime {
-    pub async fn new(store: String) -> Result<Self> {
-        let context = RuntimeContext::new(store.clone()).await?;
+    pub async fn new(host_uuid: Uuid) -> Result<Self> {
+        let context = RuntimeContext::new(host_uuid).await?;
         Ok(Self {
-            store: Arc::new(store),
+            host_uuid,
             context,
-            launch_semaphore: Arc::new(Semaphore::new(1)),
+            launch_semaphore: Arc::new(Semaphore::new(10)),
         })
     }
 
@@ -293,6 +279,11 @@ impl Runtime {
             return Err(anyhow!("unable to find krata uuid based on the domain",));
         }
         let uuid = Uuid::parse_str(&uuid)?;
+        let ip = self
+            .context
+            .ipvendor
+            .read_domain_assignment(uuid, domid)
+            .await?;
         let loops = store
             .read_string(format!("{}/krata/loops", dom_path).as_str())
             .await?;
@@ -312,6 +303,16 @@ impl Runtime {
                 }
             }
         }
+
+        if let Some(ip) = ip {
+            if let Err(error) = self.context.ipvendor.recall(&ip).await {
+                error!(
+                    "failed to recall ip assignment for guest {}: {}",
+                    uuid, error
+                );
+            }
+        }
+
         Ok(uuid)
     }
 
@@ -320,12 +321,11 @@ impl Runtime {
     }
 
     pub async fn dupe(&self) -> Result<Runtime> {
-        Runtime::new((*self.store).clone()).await
-    }
+        Runtime::new(self.host_uuid).await
     }
 
-fn path_as_string(path: &Path) -> Result<String> {
-    path.to_str()
-        .ok_or_else(|| anyhow!("unable to convert path to string"))
-        .map(|x| x.to_string())
+    pub async fn power_management_context(&self) -> Result<PowerManagementContext> {
+        let context = RuntimeContext::new(self.host_uuid).await?;
+        Ok(PowerManagementContext { context })
+    }
 }

crates/runtime/src/power.rs

@@ -0,0 +1,167 @@
+use anyhow::Result;
+use indexmap::IndexMap;
+use xencall::sys::{CpuId, SysctlCputopo};
+
+use crate::RuntimeContext;
+
+#[derive(Clone)]
+pub struct PowerManagementContext {
+    pub context: RuntimeContext,
+}
+
+#[derive(Clone, Copy, Debug)]
+pub enum CpuClass {
+    Standard,
+    Performance,
+    Efficiency,
+}
+
+#[derive(Clone, Copy, Debug)]
+pub struct CpuTopologyInfo {
+    pub core: u32,
+    pub socket: u32,
+    pub node: u32,
+    pub thread: u32,
+    pub class: CpuClass,
+}
+
+fn labelled_topo(input: &[SysctlCputopo]) -> Vec<CpuTopologyInfo> {
+    let mut cores: IndexMap<(u32, u32, u32), Vec<CpuTopologyInfo>> = IndexMap::new();
+    let mut pe_cores = false;
+    let mut last: Option<SysctlCputopo> = None;
+
+    for item in input {
+        if cores.is_empty() {
+            cores.insert(
+                (item.core, item.socket, item.node),
+                vec![CpuTopologyInfo {
+                    core: item.core,
+                    socket: item.socket,
+                    thread: 0,
+                    node: item.node,
+                    class: CpuClass::Standard,
+                }],
+            );
+            last = Some(*item);
+            continue;
+        }
+
+        if last
+            .map(|last| {
+                item.core
+                    .checked_sub(last.core)
+                    .map(|diff| diff >= 3)
+                    .unwrap_or(false)
+            })
+            .unwrap_or(false)
+        {
+            // detect if performance cores seem to be kicking in.
+            if let Some(last) = last {
+                if let Some(list) = cores.get_mut(&(last.core, last.socket, last.node)) {
+                    for other in list {
+                        other.class = CpuClass::Performance;
+                    }
+                }
+            }
+            let list = cores
+                .entry((item.core, item.socket, item.node))
+                .or_default();
+            for old in &mut *list {
+                old.class = CpuClass::Performance;
+            }
+            list.push(CpuTopologyInfo {
+                core: item.core,
+                socket: item.socket,
+                thread: 0,
+                node: item.node,
+                class: CpuClass::Performance,
+            });
+            pe_cores = true;
+        } else if pe_cores && last.map(|last| item.core == last.core + 1).unwrap_or(false) {
+            // detect efficiency cores if P/E cores are in use.
+            if let Some(last) = last {
+                if let Some(list) = cores.get_mut(&(last.core, last.socket, last.node)) {
+                    for other in list {
+                        other.class = CpuClass::Efficiency;
+                    }
+                }
+            }
+            let list = cores
+                .entry((item.core, item.socket, item.node))
+                .or_default();
+            list.push(CpuTopologyInfo {
+                core: item.core,
+                socket: item.socket,
+                thread: 0,
+                node: item.node,
+                class: CpuClass::Efficiency,
+            });
+        } else {
+            let list = cores
+                .entry((item.core, item.socket, item.node))
+                .or_default();
+            if list.is_empty() {
+                list.push(CpuTopologyInfo {
+                    core: item.core,
+                    socket: item.socket,
+                    thread: 0,
+                    node: item.node,
+                    class: CpuClass::Standard,
+                });
+            } else {
+                list.push(CpuTopologyInfo {
+                    core: item.core,
+                    socket: item.socket,
+                    thread: 0,
+                    node: item.node,
+                    class: list
+                        .first()
+                        .map(|first| first.class)
+                        .unwrap_or(CpuClass::Standard),
+                });
+            }
+        }
+        last = Some(*item);
+    }
+
+    for threads in cores.values_mut() {
+        for (index, thread) in threads.iter_mut().enumerate() {
+            thread.thread = index as u32;
+        }
+    }
+
+    cores.into_values().flatten().collect::<Vec<_>>()
+}
+
+impl PowerManagementContext {
+    /// Get the CPU topology, with SMT awareness.
+    /// Also translates Intel p-core/e-core nonsense: non-sequential core identifiers
+    /// are treated as p-cores, while e-cores behave as standard cores.
+    /// If there is a p-core/e-core split, then CPU class will be defined as
+    /// `CpuClass::Performance` or `CpuClass::Efficiency`, else `CpuClass::Standard`.
+    pub async fn cpu_topology(&self) -> Result<Vec<CpuTopologyInfo>> {
+        let xentopo = self.context.xen.call.cpu_topology().await?;
+        let logicaltopo = labelled_topo(&xentopo);
+        Ok(logicaltopo)
+    }
+
+    /// Enable or disable SMT awareness in the scheduler.
+    pub async fn set_smt_policy(&self, enable: bool) -> Result<()> {
+        self.context
+            .xen
+            .call
+            .set_turbo_mode(CpuId::All, enable)
+            .await?;
+        Ok(())
+    }
+
+    /// Set scheduler policy name.
+    pub async fn set_scheduler_policy(&self, policy: impl AsRef<str>) -> Result<()> {
+        self.context
+            .xen
+            .call
+            .set_cpufreq_gov(CpuId::All, policy)
+            .await?;
+        Ok(())
+    }
+}

crates/xen/xencall/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-xencall"
-description = "An implementation of direct interfacing to xen privcmd for krata."
+description = "An implementation of direct interfacing to Xen privcmd for krata"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true
@@ -35,5 +35,5 @@ name = "xencall-version-capabilities"
 path = "examples/version_capabilities.rs"
 
 [[example]]
-name = "xencall-vcpu-context"
-path = "examples/vcpu_context.rs"
+name = "xencall-power-management"
+path = "examples/power_management.rs"

crates/xen/xencall/examples/cputopo.rs

@@ -0,0 +1,19 @@
+use xencall::error::Result;
+use xencall::sys::CpuId;
+use xencall::XenCall;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    env_logger::init();
+
+    let call = XenCall::open(0)?;
+    let physinfo = call.phys_info().await?;
+    println!("{:?}", physinfo);
+    let topology = call.cpu_topology().await?;
+    println!("{:?}", topology);
+    call.set_cpufreq_gov(CpuId::All, "performance").await?;
+    call.set_cpufreq_gov(CpuId::Single(0), "performance")
+        .await?;
+    call.set_turbo_mode(CpuId::All, true).await?;
+    Ok(())
+}

crates/xen/xencall/examples/power_management.rs

@@ -0,0 +1,19 @@
+use xencall::error::Result;
+use xencall::sys::CpuId;
+use xencall::XenCall;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    env_logger::init();
+
+    let call = XenCall::open(0)?;
+    let physinfo = call.phys_info().await?;
+    println!("{:?}", physinfo);
+    let topology = call.cpu_topology().await?;
+    println!("{:?}", topology);
+    call.set_cpufreq_gov(CpuId::All, "performance").await?;
+    call.set_cpufreq_gov(CpuId::Single(0), "performance")
+        .await?;
+    call.set_turbo_mode(CpuId::All, true).await?;
+    Ok(())
+}

crates/xen/xencall/examples/vcpu_context.rs

@@ -1,12 +0,0 @@
-use xencall::error::Result;
-use xencall::XenCall;
-
-#[tokio::main]
-async fn main() -> Result<()> {
-    env_logger::init();
-
-    let call = XenCall::open(0)?;
-    let context = call.get_vcpu_context(224, 0).await?;
-    println!("{:?}", context);
-    Ok(())
-}

crates/xen/xencall/src/error.rs

@@ -14,6 +14,8 @@ pub enum Error {
     PopulatePhysmapFailed,
     #[error("mmap batch failed: {0}")]
     MmapBatchFailed(nix::errno::Errno),
+    #[error("specified value is too long")]
+    ValueTooLong,
 }
 
 pub type Result<T> = std::result::Result<T, Error>;

crates/xen/xencall/src/lib.rs

@@ -3,28 +3,42 @@ pub mod sys;
 
 use crate::error::{Error, Result};
 use crate::sys::{
-    AddressSize, CreateDomain, DomCtl, DomCtlValue, DomCtlVcpuContext, EvtChnAllocUnbound,
-    GetDomainInfo, GetPageFrameInfo3, Hypercall, HypercallInit, MaxMem, MaxVcpus, MemoryMap,
-    MemoryReservation, MmapBatch, MmapResource, MmuExtOp, MultiCallEntry, VcpuGuestContext,
-    VcpuGuestContextAny, XenCapabilitiesInfo, HYPERVISOR_DOMCTL, HYPERVISOR_EVENT_CHANNEL_OP,
-    HYPERVISOR_MEMORY_OP, HYPERVISOR_MMUEXT_OP, HYPERVISOR_MULTICALL, HYPERVISOR_XEN_VERSION,
-    XENVER_CAPABILITIES, XEN_DOMCTL_CREATEDOMAIN, XEN_DOMCTL_DESTROYDOMAIN,
-    XEN_DOMCTL_GETDOMAININFO, XEN_DOMCTL_GETPAGEFRAMEINFO3, XEN_DOMCTL_GETVCPUCONTEXT,
-    XEN_DOMCTL_HYPERCALL_INIT, XEN_DOMCTL_MAX_MEM, XEN_DOMCTL_MAX_VCPUS, XEN_DOMCTL_PAUSEDOMAIN,
-    XEN_DOMCTL_SETVCPUCONTEXT, XEN_DOMCTL_SET_ADDRESS_SIZE, XEN_DOMCTL_UNPAUSEDOMAIN,
-    XEN_MEM_CLAIM_PAGES, XEN_MEM_MEMORY_MAP, XEN_MEM_POPULATE_PHYSMAP,
+    AddToPhysmap, AddressSize, AssignDevice, CreateDomain, DomCtl, DomCtlValue, DomCtlVcpuContext,
+    EvtChnAllocUnbound, GetDomainInfo, GetPageFrameInfo3, HvmContext, HvmParam, Hypercall,
+    HypercallInit, IoMemPermission, IoPortPermission, IrqPermission, MaxMem, MaxVcpus, MemoryMap,
+    MemoryReservation, MmapBatch, MmapResource, MmuExtOp, MultiCallEntry, PagingMempool,
+    PciAssignDevice, XenCapabilitiesInfo, DOMCTL_DEV_PCI, HYPERVISOR_DOMCTL,
+    HYPERVISOR_EVENT_CHANNEL_OP, HYPERVISOR_HVM_OP, HYPERVISOR_MEMORY_OP, HYPERVISOR_MMUEXT_OP,
+    HYPERVISOR_MULTICALL, HYPERVISOR_XEN_VERSION, XENVER_CAPABILITIES, XEN_DOMCTL_ASSIGN_DEVICE,
+    XEN_DOMCTL_CREATEDOMAIN, XEN_DOMCTL_DESTROYDOMAIN, XEN_DOMCTL_GETDOMAININFO,
+    XEN_DOMCTL_GETHVMCONTEXT, XEN_DOMCTL_GETPAGEFRAMEINFO3, XEN_DOMCTL_HYPERCALL_INIT,
+    XEN_DOMCTL_IOMEM_PERMISSION, XEN_DOMCTL_IOPORT_PERMISSION, XEN_DOMCTL_IRQ_PERMISSION,
+    XEN_DOMCTL_MAX_MEM, XEN_DOMCTL_MAX_VCPUS, XEN_DOMCTL_PAUSEDOMAIN, XEN_DOMCTL_SETHVMCONTEXT,
+    XEN_DOMCTL_SETVCPUCONTEXT, XEN_DOMCTL_SET_ADDRESS_SIZE, XEN_DOMCTL_SET_PAGING_MEMPOOL_SIZE,
+    XEN_DOMCTL_UNPAUSEDOMAIN, XEN_MEM_ADD_TO_PHYSMAP, XEN_MEM_CLAIM_PAGES, XEN_MEM_MEMORY_MAP,
+    XEN_MEM_POPULATE_PHYSMAP,
 };
-use libc::{c_int, mmap, usleep, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE};
+use libc::{c_int, mmap, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE};
 use log::trace;
 use nix::errno::Errno;
 use std::ffi::{c_long, c_uint, c_ulong, c_void};
 use std::sync::Arc;
-use sys::{XEN_DOMCTL_MAX_INTERFACE_VERSION, XEN_DOMCTL_MIN_INTERFACE_VERSION};
+use std::time::Duration;
+use sys::{
+    CpuId, E820Entry, ForeignMemoryMap, PhysdevMapPirq, Sysctl, SysctlCputopo, SysctlCputopoinfo,
+    SysctlPhysinfo, SysctlPmOp, SysctlPmOpValue, SysctlSetCpuFreqGov, SysctlValue,
+    VcpuGuestContextAny, HYPERVISOR_PHYSDEV_OP, HYPERVISOR_SYSCTL, PHYSDEVOP_MAP_PIRQ,
+    XEN_DOMCTL_MAX_INTERFACE_VERSION, XEN_DOMCTL_MIN_INTERFACE_VERSION, XEN_MEM_SET_MEMORY_MAP,
+    XEN_SYSCTL_CPUTOPOINFO, XEN_SYSCTL_MAX_INTERFACE_VERSION, XEN_SYSCTL_MIN_INTERFACE_VERSION,
+    XEN_SYSCTL_PHYSINFO, XEN_SYSCTL_PM_OP, XEN_SYSCTL_PM_OP_DISABLE_TURBO,
+    XEN_SYSCTL_PM_OP_ENABLE_TURBO,
+};
 use tokio::sync::Semaphore;
+use tokio::time::sleep;
 
 use std::fs::{File, OpenOptions};
 use std::os::fd::AsRawFd;
-use std::ptr::addr_of_mut;
+use std::ptr::{addr_of_mut, null_mut};
 use std::slice;
 
 #[derive(Clone)]
@@ -32,6 +46,7 @@ pub struct XenCall {
     pub handle: Arc<File>,
     semaphore: Arc<Semaphore>,
     domctl_interface_version: u32,
+    sysctl_interface_version: u32,
 }
 
 impl XenCall {
@@ -42,10 +57,12 @@ impl XenCall {
             .open("/dev/xen/privcmd")?;
         let domctl_interface_version =
             XenCall::detect_domctl_interface_version(&handle, current_domid)?;
+        let sysctl_interface_version = XenCall::detect_sysctl_interface_version(&handle)?;
         Ok(XenCall {
             handle: Arc::new(handle),
             semaphore: Arc::new(Semaphore::new(1)),
             domctl_interface_version,
+            sysctl_interface_version,
         })
     }
 
@@ -73,6 +90,32 @@ impl XenCall {
         Err(Error::XenVersionUnsupported)
     }
 
+    fn detect_sysctl_interface_version(handle: &File) -> Result<u32> {
+        for version in XEN_SYSCTL_MIN_INTERFACE_VERSION..XEN_SYSCTL_MAX_INTERFACE_VERSION + 1 {
+            let mut sysctl = Sysctl {
+                cmd: XEN_SYSCTL_CPUTOPOINFO,
+                interface_version: version,
+                value: SysctlValue {
+                    cputopoinfo: SysctlCputopoinfo {
+                        num_cpus: 0,
+                        handle: 0,
+                    },
+                },
+            };
+            unsafe {
+                let mut call = Hypercall {
+                    op: HYPERVISOR_SYSCTL,
+                    arg: [addr_of_mut!(sysctl) as u64, 0, 0, 0, 0],
+                };
+                let result = sys::hypercall(handle.as_raw_fd(), &mut call).unwrap_or(-1);
+                if result == 0 {
+                    return Ok(version);
+                }
+            }
+        }
+        Err(Error::XenVersionUnsupported)
+    }
+
     pub async fn mmap(&self, addr: u64, len: u64) -> Option<u64> {
         let _permit = self.semaphore.acquire().await.ok()?;
         trace!(
@@ -227,8 +270,8 @@ impl XenCall {
                 num: num as u32,
                 domid: domid as u16,
                 addr,
-                mfns: mfns.as_mut_ptr(),
-                errors: errors.as_mut_ptr(),
+                mfns: mfns.as_mut_ptr() as u64,
+                errors: errors.as_mut_ptr() as u64,
             };
 
             let result = sys::mmapbatch(self.handle.as_raw_fd(), &mut batch);
@@ -237,7 +280,7 @@ impl XenCall {
                     return Err(Error::MmapBatchFailed(errno))?;
                 }
 
-                usleep(100);
+                sleep(Duration::from_micros(100)).await;
 
                 let mut i: usize = 0;
                 let mut paged: usize = 0;
@@ -252,8 +295,8 @@ impl XenCall {
                         num: 1,
                         domid: domid as u16,
                         addr: addr + ((i as u64) << 12),
-                        mfns: mfns.as_mut_ptr().add(i),
-                        errors: errors.as_mut_ptr().add(i),
+                        mfns: mfns.as_mut_ptr().add(i) as u64,
+                        errors: errors.as_mut_ptr().add(i) as u64,
                     };
 
                     loop {
@@ -453,45 +496,19 @@ impl XenCall {
         Ok(())
     }
 
-    pub async fn get_vcpu_context(&self, domid: u32, vcpu: u32) -> Result<VcpuGuestContext> {
-        trace!(
-            "domctl fd={} get_vcpu_context domid={}",
-            self.handle.as_raw_fd(),
-            domid,
-        );
-        let mut wrapper = VcpuGuestContextAny {
-            value: VcpuGuestContext::default(),
-        };
-        let mut domctl = DomCtl {
-            cmd: XEN_DOMCTL_GETVCPUCONTEXT,
-            interface_version: self.domctl_interface_version,
-            domid,
-            value: DomCtlValue {
-                vcpu_context: DomCtlVcpuContext {
-                    vcpu,
-                    ctx: addr_of_mut!(wrapper) as c_ulong,
-                },
-            },
-        };
-        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
-            .await?;
-        Ok(unsafe { wrapper.value })
-    }
-
     pub async fn set_vcpu_context(
         &self,
         domid: u32,
         vcpu: u32,
-        context: &VcpuGuestContext,
+        mut context: VcpuGuestContextAny,
     ) -> Result<()> {
         trace!(
             "domctl fd={} set_vcpu_context domid={} context={:?}",
             self.handle.as_raw_fd(),
             domid,
-            context,
+            unsafe { context.value }
         );
 
-        let mut value = VcpuGuestContextAny { value: *context };
         let mut domctl = DomCtl {
             cmd: XEN_DOMCTL_SETVCPUCONTEXT,
             interface_version: self.domctl_interface_version,
@@ -499,7 +516,7 @@ impl XenCall {
             value: DomCtlValue {
                 vcpu_context: DomCtlVcpuContext {
                     vcpu,
-                    ctx: addr_of_mut!(value) as c_ulong,
+                    ctx: addr_of_mut!(context) as c_ulong,
                 },
             },
         };
@@ -569,26 +586,48 @@ impl XenCall {
         Ok(())
     }
 
-    pub async fn get_memory_map(&self, size_of_entry: usize) -> Result<Vec<u8>> {
+    pub async fn get_memory_map(&self, max_entries: u32) -> Result<Vec<E820Entry>> {
         let mut memory_map = MemoryMap {
-            count: 0,
+            count: max_entries,
             buffer: 0,
         };
+        let mut entries = vec![E820Entry::default(); max_entries as usize];
+        memory_map.buffer = entries.as_mut_ptr() as c_ulong;
+        self.hypercall2(
+            HYPERVISOR_MEMORY_OP,
+            XEN_MEM_MEMORY_MAP as c_ulong,
+            addr_of_mut!(memory_map) as c_ulong,
+        )
+        .await?;
+        entries.truncate(memory_map.count as usize);
+        Ok(entries)
+    }
+
+    pub async fn set_memory_map(
+        &self,
+        domid: u32,
+        entries: Vec<E820Entry>,
+    ) -> Result<Vec<E820Entry>> {
+        trace!(
+            "fd={} set_memory_map domid={} entries={:?}",
+            self.handle.as_raw_fd(),
+            domid,
+            entries
+        );
+        let mut memory_map = ForeignMemoryMap {
+            domid: domid as u16,
+            map: MemoryMap {
+                count: entries.len() as u32,
+                buffer: entries.as_ptr() as u64,
+            },
+        };
         self.hypercall2(
             HYPERVISOR_MEMORY_OP,
-            XEN_MEM_MEMORY_MAP as c_ulong,
+            XEN_MEM_SET_MEMORY_MAP as c_ulong,
             addr_of_mut!(memory_map) as c_ulong,
         )
         .await?;
-        let mut buffer = vec![0u8; memory_map.count as usize * size_of_entry];
-        memory_map.buffer = buffer.as_mut_ptr() as c_ulong;
-        self.hypercall2(
-            HYPERVISOR_MEMORY_OP,
-            XEN_MEM_MEMORY_MAP as c_ulong,
-            addr_of_mut!(memory_map) as c_ulong,
-        )
-        .await?;
-        Ok(buffer)
+        Ok(entries)
     }
 
     pub async fn populate_physmap(
@@ -611,24 +650,14 @@ impl XenCall {
             domid: domid as u16,
         };
 
-        let calls = &mut [MultiCallEntry {
-            op: HYPERVISOR_MEMORY_OP,
-            result: 0,
-            args: [
+        let code = self
+            .hypercall2(
+                HYPERVISOR_MEMORY_OP,
                 XEN_MEM_POPULATE_PHYSMAP as c_ulong,
                 addr_of_mut!(reservation) as c_ulong,
-                0,
-                0,
-                0,
-                0,
-            ],
-        }];
-        self.multicall(calls).await?;
-        let code = calls[0].result;
-        if code > !0xfff {
-            return Err(Error::PopulatePhysmapFailed);
-        }
-        if code as usize > extent_starts.len() {
+            )
+            .await?;
+        if code as usize != extent_starts.len() {
             return Err(Error::PopulatePhysmapFailed);
         }
         let extents = extent_starts[0..code as usize].to_vec();
@@ -658,6 +687,31 @@ impl XenCall {
         Ok(())
     }
 
+    pub async fn add_to_physmap(&self, domid: u32, space: u32, idx: u64, pfn: u64) -> Result<()> {
+        trace!(
+            "memory fd={} add_to_physmap domid={} space={} idx={} pfn={}",
+            self.handle.as_raw_fd(),
+            domid,
+            space,
+            idx,
+            pfn,
+        );
+        let mut add = AddToPhysmap {
+            domid: domid as u16,
+            size: 0,
+            space,
+            idx,
+            gpfn: pfn,
+        };
+        self.hypercall2(
+            HYPERVISOR_MEMORY_OP,
+            XEN_MEM_ADD_TO_PHYSMAP as c_ulong,
+            addr_of_mut!(add) as c_ulong,
+        )
+        .await?;
+        Ok(())
+    }
+
     pub async fn mmuext(&self, domid: u32, cmd: c_uint, arg1: u64, arg2: u64) -> Result<()> {
         let mut ops = MmuExtOp { cmd, arg1, arg2 };
 
@@ -671,4 +725,366 @@ impl XenCall {
         .await
         .map(|_| ())
     }
+
+    pub async fn iomem_permission(
+        &self,
+        domid: u32,
+        first_mfn: u64,
+        nr_mfns: u64,
+        allow: bool,
+    ) -> Result<()> {
+        trace!(
+            "domctl fd={} iomem_permission domid={} first_mfn={:#x}, nr_mfns={:#x} allow={}",
+            self.handle.as_raw_fd(),
+            domid,
+            first_mfn,
+            nr_mfns,
+            allow,
+        );
+        let mut domctl = DomCtl {
+            cmd: XEN_DOMCTL_IOMEM_PERMISSION,
+            interface_version: self.domctl_interface_version,
+            domid,
+            value: DomCtlValue {
+                iomem_permission: IoMemPermission {
+                    first_mfn,
+                    nr_mfns,
+                    allow: if allow { 1 } else { 0 },
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
+            .await?;
+        Ok(())
+    }
+
+    pub async fn ioport_permission(
+        &self,
+        domid: u32,
+        first_port: u32,
+        nr_ports: u32,
+        allow: bool,
+    ) -> Result<()> {
+        trace!(
+            "domctl fd={} ioport_permission domid={} first_port={:#x}, nr_ports={:#x} allow={}",
+            self.handle.as_raw_fd(),
+            domid,
+            first_port,
+            nr_ports,
+            allow,
+        );
+        let mut domctl = DomCtl {
+            cmd: XEN_DOMCTL_IOPORT_PERMISSION,
+            interface_version: self.domctl_interface_version,
+            domid,
+            value: DomCtlValue {
+                ioport_permission: IoPortPermission {
+                    first_port,
+                    nr_ports,
+                    allow: if allow { 1 } else { 0 },
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
+            .await?;
+        Ok(())
+    }
+
+    pub async fn irq_permission(&self, domid: u32, irq: u32, allow: bool) -> Result<()> {
+        trace!(
+            "domctl fd={} irq_permission domid={} irq={} allow={}",
+            self.handle.as_raw_fd(),
+            domid,
+            irq,
+            allow,
+        );
+        let mut domctl = DomCtl {
+            cmd: XEN_DOMCTL_IRQ_PERMISSION,
+            interface_version: self.domctl_interface_version,
+            domid,
+            value: DomCtlValue {
+                irq_permission: IrqPermission {
+                    pirq: irq,
+                    allow: if allow { 1 } else { 0 },
+                    pad: [0; 3],
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
+            .await?;
+        Ok(())
+    }
+
+    #[allow(clippy::field_reassign_with_default)]
+    pub async fn map_pirq(&self, domid: u32, index: isize, pirq: Option<u32>) -> Result<u32> {
+        trace!(
+            "physdev fd={} map_pirq domid={} index={} pirq={:?}",
+            self.handle.as_raw_fd(),
+            domid,
+            index,
+            pirq,
+        );
+        let mut physdev = PhysdevMapPirq {
+            domid: domid as u16,
+            typ: 0x1,
+            index: index as c_int,
+            pirq: pirq.map(|x| x as c_int).unwrap_or(index as c_int),
+            ..Default::default()
+        };
+        physdev.domid = domid as u16;
+        physdev.typ = 0x1;
+        physdev.index = index as c_int;
+        physdev.pirq = pirq.map(|x| x as c_int).unwrap_or(index as c_int);
+        self.hypercall2(
+            HYPERVISOR_PHYSDEV_OP,
+            PHYSDEVOP_MAP_PIRQ,
+            addr_of_mut!(physdev) as c_ulong,
+        )
+        .await?;
+        Ok(physdev.pirq as u32)
+    }
+
+    pub async fn assign_device(&self, domid: u32, sbdf: u32, flags: u32) -> Result<()> {
+        trace!(
+            "domctl fd={} assign_device domid={} sbdf={} flags={}",
+            self.handle.as_raw_fd(),
+            domid,
+            sbdf,
+            flags,
+        );
+        let mut domctl = DomCtl {
+            cmd: XEN_DOMCTL_ASSIGN_DEVICE,
+            interface_version: self.domctl_interface_version,
+            domid,
+            value: DomCtlValue {
+                assign_device: AssignDevice {
+                    device: DOMCTL_DEV_PCI,
+                    flags,
+                    pci_assign_device: PciAssignDevice { sbdf, padding: 0 },
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
+            .await?;
+        Ok(())
+    }
+
+    #[allow(clippy::field_reassign_with_default)]
+    pub async fn set_hvm_param(&self, domid: u32, index: u32, value: u64) -> Result<()> {
+        trace!(
+            "set_hvm_param fd={} domid={} index={} value={:?}",
+            self.handle.as_raw_fd(),
+            domid,
+            index,
+            value,
+        );
+        let mut param = HvmParam::default();
+        param.domid = domid as u16;
+        param.index = index;
+        param.value = value;
+        self.hypercall2(HYPERVISOR_HVM_OP, 0, addr_of_mut!(param) as c_ulong)
+            .await?;
+        Ok(())
+    }
+
+    pub async fn get_hvm_context(&self, domid: u32, buffer: Option<&mut [u8]>) -> Result<u32> {
+        trace!(
+            "domctl fd={} get_hvm_context domid={}",
+            self.handle.as_raw_fd(),
+            domid,
+        );
+        let mut domctl = DomCtl {
+            cmd: XEN_DOMCTL_GETHVMCONTEXT,
+            interface_version: self.domctl_interface_version,
+            domid,
+            value: DomCtlValue {
+                hvm_context: HvmContext {
+                    size: buffer.as_ref().map(|x| x.len()).unwrap_or(0) as u32,
+                    buffer: buffer.map(|x| x.as_mut_ptr()).unwrap_or(null_mut()) as u64,
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
+            .await?;
+        Ok(unsafe { domctl.value.hvm_context.size })
+    }
+
+    pub async fn set_hvm_context(&self, domid: u32, buffer: &mut [u8]) -> Result<u32> {
+        trace!(
+            "domctl fd={} set_hvm_context domid={}",
+            self.handle.as_raw_fd(),
+            domid,
+        );
+        let mut domctl = DomCtl {
+            cmd: XEN_DOMCTL_SETHVMCONTEXT,
+            interface_version: self.domctl_interface_version,
+            domid,
+            value: DomCtlValue {
+                hvm_context: HvmContext {
+                    size: buffer.len() as u32,
+                    buffer: buffer.as_ptr() as u64,
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
+            .await?;
+        Ok(unsafe { domctl.value.hvm_context.size })
+    }
+
+    pub async fn set_paging_mempool_size(&self, domid: u32, size: u64) -> Result<()> {
+        trace!(
+            "domctl fd={} set_paging_mempool_size domid={} size={}",
+            self.handle.as_raw_fd(),
+            domid,
+            size,
+        );
+        let mut domctl = DomCtl {
+            cmd: XEN_DOMCTL_SET_PAGING_MEMPOOL_SIZE,
+            interface_version: self.domctl_interface_version,
+            domid,
+            value: DomCtlValue {
+                paging_mempool: PagingMempool { size },
+            },
+        };
+        self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
+            .await?;
+        Ok(())
+    }
+
+    pub async fn cpu_topology(&self) -> Result<Vec<SysctlCputopo>> {
+        let mut sysctl = Sysctl {
+            cmd: XEN_SYSCTL_CPUTOPOINFO,
+            interface_version: self.sysctl_interface_version,
+            value: SysctlValue {
+                cputopoinfo: SysctlCputopoinfo {
+                    num_cpus: 0,
+                    handle: 0,
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_SYSCTL, addr_of_mut!(sysctl) as c_ulong)
+            .await?;
+        let cpus = unsafe { sysctl.value.cputopoinfo.num_cpus };
+        let mut topos = vec![
+            SysctlCputopo {
+                core: 0,
+                socket: 0,
+                node: 0
+            };
+            cpus as usize
+        ];
+        let mut sysctl = Sysctl {
+            cmd: XEN_SYSCTL_CPUTOPOINFO,
+            interface_version: self.sysctl_interface_version,
+            value: SysctlValue {
+                cputopoinfo: SysctlCputopoinfo {
+                    num_cpus: cpus,
+                    handle: topos.as_mut_ptr() as c_ulong,
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_SYSCTL, addr_of_mut!(sysctl) as c_ulong)
+            .await?;
+        Ok(topos)
+    }
+
+    pub async fn phys_info(&self) -> Result<SysctlPhysinfo> {
+        let mut sysctl = Sysctl {
+            cmd: XEN_SYSCTL_PHYSINFO,
+            interface_version: self.sysctl_interface_version,
+            value: SysctlValue {
+                phys_info: SysctlPhysinfo::default(),
+            },
+        };
+        self.hypercall1(HYPERVISOR_SYSCTL, addr_of_mut!(sysctl) as c_ulong)
+            .await?;
+        Ok(unsafe { sysctl.value.phys_info })
+    }
+
+    pub async fn set_cpufreq_gov(&self, cpuid: CpuId, gov: impl AsRef<str>) -> Result<()> {
+        match cpuid {
+            CpuId::All => {
+                let phys_info = self.phys_info().await?;
+                for cpuid in 0..phys_info.max_cpu_id + 1 {
+                    self.do_set_cpufreq_gov(cpuid, gov.as_ref()).await?;
+                }
+            }
+
+            CpuId::Single(id) => {
+                self.do_set_cpufreq_gov(id, gov).await?;
+            }
+        }
+        Ok(())
+    }
+
+    async fn do_set_cpufreq_gov(&self, cpuid: u32, gov: impl AsRef<str>) -> Result<()> {
+        let governor = gov.as_ref().as_bytes().to_vec();
+        if governor.len() > 15 {
+            return Err(Error::ValueTooLong);
+        }
+
+        let mut scaling_governor = [0u8; 16];
+
+        // leave space for the last byte to be zero at all times.
+        for i in 0..15usize {
+            if i >= governor.len() {
+                break;
+            }
+            scaling_governor[i] = governor[i];
+        }
+
+        let mut sysctl = Sysctl {
+            cmd: XEN_SYSCTL_PM_OP,
+            interface_version: self.sysctl_interface_version,
+            value: SysctlValue {
+                pm_op: SysctlPmOp {
+                    cmd: XEN_SYSCTL_PM_OP_ENABLE_TURBO,
+                    cpuid,
+                    value: SysctlPmOpValue {
+                        set_gov: SysctlSetCpuFreqGov { scaling_governor },
+                    },
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_SYSCTL, addr_of_mut!(sysctl) as c_ulong)
+            .await?;
+        Ok(())
+    }
+
+    pub async fn set_turbo_mode(&self, cpuid: CpuId, enable: bool) -> Result<()> {
+        match cpuid {
+            CpuId::All => {
+                let phys_info = self.phys_info().await?;
+                for cpuid in 0..phys_info.max_cpu_id + 1 {
+                    self.do_set_turbo_mode(cpuid, enable).await?;
+                }
+            }
+
+            CpuId::Single(id) => {
+                self.do_set_turbo_mode(id, enable).await?;
+            }
+        }
+        Ok(())
+    }
+
+    async fn do_set_turbo_mode(&self, cpuid: u32, enable: bool) -> Result<()> {
+        let mut sysctl = Sysctl {
+            cmd: XEN_SYSCTL_PM_OP,
+            interface_version: self.sysctl_interface_version,
+            value: SysctlValue {
+                pm_op: SysctlPmOp {
+                    cmd: if enable {
+                        XEN_SYSCTL_PM_OP_ENABLE_TURBO
+                    } else {
+                        XEN_SYSCTL_PM_OP_DISABLE_TURBO
+                    },
+                    cpuid,
+                    value: SysctlPmOpValue { pad: [0u8; 128] },
+                },
+            },
+        };
+        self.hypercall1(HYPERVISOR_SYSCTL, addr_of_mut!(sysctl) as c_ulong)
+            .await?;
+        Ok(())
+    }
 }