mirror of
https://github.com/edera-dev/krata.git
synced 2025-08-03 13:11:31 +00:00
feature(xen): dynamic platform architecture (#194)
* wip hvm * feat: move platform stuff all into it's own thing * hvm work * more hvm work * more hvm work * feat: rework to support multiple platforms * hvm nonredist * more hvm work * more hvm work * pvh work * work on loading cmdline * implement initrd loading for pvh * partially working pvh support * fix merge issues * pvh works! * swap over to pv support * remove old kernel stuff * fix support for pv * pvh is gone for now * fix(runtime): debug should be respected * fix(xen): arm64 is currently unsupported, treat it as such at runtime * fix(examples): use architecture cfg for boot example * fix(x86): use IOMMU only when needed for passthrough * chore(build): print kernel architecture during fetch
This commit is contained in:
Alex Zenla
GitHub
@ -26,6 +26,7 @@ async fn main() -> Result<()> {
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fs::create_dir_all("target/kernel").await?;
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let arch = env::var("TARGET_ARCH").map_err(|_| anyhow!("missing TARGET_ARCH env var"))?;
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println!("kernel architecture: {}", arch);
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let platform = OciPlatform::new(
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Os::Linux,
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match arch.as_str() {
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@ -375,7 +375,10 @@ impl KrataChannelBackendProcessor {
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};
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ring_ref = self.use_reserved_ref.unwrap_or(ring_ref);
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debug!(
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"channel backend for domain {} channel {}: ring-ref={} port={}",
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self.domid, self.id, ring_ref, port,
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);
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break (ring_ref, port);
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}
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}
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@ -389,14 +392,24 @@ impl KrataChannelBackendProcessor {
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self.store
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.write_string(format!("{}/state", self.backend), "4")
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.await?;
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let memory = self.gnttab.map_grant_refs(
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vec![GrantRef {
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domid: self.domid,
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reference: ring_ref as u32,
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}],
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true,
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true,
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)?;
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let memory = self
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.gnttab
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.map_grant_refs(
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vec![GrantRef {
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domid: self.domid,
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reference: ring_ref as u32,
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}],
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true,
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true,
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)
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.map_err(|e| {
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anyhow!(
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"failed to map grant ref {} for domid {}: {}",
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ring_ref,
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self.domid,
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e
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)
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})?;
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let mut channel = self.evtchn.bind(self.domid, port).await?;
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unsafe {
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let buffer = self.read_output_buffer(channel.local_port, &memory).await?;
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@ -138,10 +138,10 @@ impl GuestLauncher {
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} else {
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None
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};
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let cmdline_options = [
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if request.debug { "debug" } else { "quiet" },
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"elevator=noop",
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];
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let mut cmdline_options = ["console=hvc0"].to_vec();
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if !request.debug {
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cmdline_options.push("quiet");
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}
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let cmdline = cmdline_options.join(" ");
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let guest_mac_string = container_mac.to_string().replace('-', ":");
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@ -227,7 +227,7 @@ impl GuestLauncher {
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kernel: request.kernel,
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initrd: request.initrd,
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cmdline,
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use_console_backend: Some("krata-console".to_string()),
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swap_console_backend: Some("krata-console".to_string()),
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disks,
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channels: vec![DomainChannel {
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typ: "krata-channel".to_string(),
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@ -21,6 +21,12 @@ pub mod channel;
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pub mod ip;
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pub mod launch;
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#[cfg(target_arch = "x86_64")]
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type RuntimePlatform = xenclient::x86pv::X86PvPlatform;
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#[cfg(not(target_arch = "x86_64"))]
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type RuntimePlatform = xenclient::unsupported::UnsupportedPlatform;
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pub struct GuestLoopInfo {
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pub device: String,
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pub file: String,
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@ -49,13 +55,13 @@ pub struct GuestInfo {
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#[derive(Clone)]
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pub struct RuntimeContext {
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pub autoloop: AutoLoop,
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pub xen: XenClient,
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pub xen: XenClient<RuntimePlatform>,
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pub ipvendor: IpVendor,
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}
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impl RuntimeContext {
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pub async fn new(host_uuid: Uuid) -> Result<Self> {
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let xen = XenClient::open(0).await?;
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let xen = XenClient::new(0, RuntimePlatform::new()).await?;
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let ipv4_network = Ipv4Network::new(Ipv4Addr::new(10, 75, 80, 0), 24)?;
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let ipv6_network = Ipv6Network::from_str("fdd4:1476:6c7e::/48")?;
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let ipvend =
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@ -33,7 +33,3 @@ path = "examples/domain_create.rs"
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[[example]]
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name = "xencall-version-capabilities"
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path = "examples/version_capabilities.rs"
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[[example]]
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name = "xencall-vcpu-context"
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path = "examples/vcpu_context.rs"
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@ -1,12 +0,0 @@
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use xencall::error::Result;
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use xencall::XenCall;
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#[tokio::main]
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async fn main() -> Result<()> {
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env_logger::init();
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let call = XenCall::open(0)?;
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let context = call.get_vcpu_context(224, 0).await?;
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println!("{:?}", context);
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Ok(())
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}
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@ -3,34 +3,38 @@ pub mod sys;
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use crate::error::{Error, Result};
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use crate::sys::{
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AddressSize, AssignDevice, CreateDomain, DomCtl, DomCtlValue, DomCtlVcpuContext,
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EvtChnAllocUnbound, GetDomainInfo, GetPageFrameInfo3, Hypercall, HypercallInit,
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IoMemPermission, IoPortPermission, IrqPermission, MaxMem, MaxVcpus, MemoryMap,
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MemoryReservation, MmapBatch, MmapResource, MmuExtOp, MultiCallEntry, PciAssignDevice,
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VcpuGuestContext, VcpuGuestContextAny, XenCapabilitiesInfo, DOMCTL_DEV_PCI, HYPERVISOR_DOMCTL,
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HYPERVISOR_EVENT_CHANNEL_OP, HYPERVISOR_MEMORY_OP, HYPERVISOR_MMUEXT_OP, HYPERVISOR_MULTICALL,
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HYPERVISOR_XEN_VERSION, XENVER_CAPABILITIES, XEN_DOMCTL_ASSIGN_DEVICE, XEN_DOMCTL_CREATEDOMAIN,
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XEN_DOMCTL_DESTROYDOMAIN, XEN_DOMCTL_GETDOMAININFO, XEN_DOMCTL_GETPAGEFRAMEINFO3,
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XEN_DOMCTL_GETVCPUCONTEXT, XEN_DOMCTL_HYPERCALL_INIT, XEN_DOMCTL_IOMEM_PERMISSION,
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XEN_DOMCTL_IOPORT_PERMISSION, XEN_DOMCTL_IRQ_PERMISSION, XEN_DOMCTL_MAX_MEM,
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XEN_DOMCTL_MAX_VCPUS, XEN_DOMCTL_PAUSEDOMAIN, XEN_DOMCTL_SETVCPUCONTEXT,
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XEN_DOMCTL_SET_ADDRESS_SIZE, XEN_DOMCTL_UNPAUSEDOMAIN, XEN_MEM_CLAIM_PAGES, XEN_MEM_MEMORY_MAP,
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AddToPhysmap, AddressSize, AssignDevice, CreateDomain, DomCtl, DomCtlValue, DomCtlVcpuContext,
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EvtChnAllocUnbound, GetDomainInfo, GetPageFrameInfo3, HvmContext, HvmParam, Hypercall,
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HypercallInit, IoMemPermission, IoPortPermission, IrqPermission, MaxMem, MaxVcpus, MemoryMap,
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MemoryReservation, MmapBatch, MmapResource, MmuExtOp, MultiCallEntry, PagingMempool,
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PciAssignDevice, XenCapabilitiesInfo, DOMCTL_DEV_PCI, HYPERVISOR_DOMCTL,
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HYPERVISOR_EVENT_CHANNEL_OP, HYPERVISOR_HVM_OP, HYPERVISOR_MEMORY_OP, HYPERVISOR_MMUEXT_OP,
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HYPERVISOR_MULTICALL, HYPERVISOR_XEN_VERSION, XENVER_CAPABILITIES, XEN_DOMCTL_ASSIGN_DEVICE,
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XEN_DOMCTL_CREATEDOMAIN, XEN_DOMCTL_DESTROYDOMAIN, XEN_DOMCTL_GETDOMAININFO,
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XEN_DOMCTL_GETHVMCONTEXT, XEN_DOMCTL_GETPAGEFRAMEINFO3, XEN_DOMCTL_HYPERCALL_INIT,
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XEN_DOMCTL_IOMEM_PERMISSION, XEN_DOMCTL_IOPORT_PERMISSION, XEN_DOMCTL_IRQ_PERMISSION,
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XEN_DOMCTL_MAX_MEM, XEN_DOMCTL_MAX_VCPUS, XEN_DOMCTL_PAUSEDOMAIN, XEN_DOMCTL_SETHVMCONTEXT,
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XEN_DOMCTL_SETVCPUCONTEXT, XEN_DOMCTL_SET_ADDRESS_SIZE, XEN_DOMCTL_SET_PAGING_MEMPOOL_SIZE,
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XEN_DOMCTL_UNPAUSEDOMAIN, XEN_MEM_ADD_TO_PHYSMAP, XEN_MEM_CLAIM_PAGES, XEN_MEM_MEMORY_MAP,
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XEN_MEM_POPULATE_PHYSMAP,
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};
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use libc::{c_int, mmap, usleep, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE};
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use libc::{c_int, mmap, MAP_FAILED, MAP_SHARED, PROT_READ, PROT_WRITE};
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use log::trace;
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use nix::errno::Errno;
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use std::ffi::{c_long, c_uint, c_ulong, c_void};
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use std::sync::Arc;
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use std::time::Duration;
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use sys::{
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E820Entry, ForeignMemoryMap, PhysdevMapPirq, HYPERVISOR_PHYSDEV_OP, PHYSDEVOP_MAP_PIRQ,
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XEN_DOMCTL_MAX_INTERFACE_VERSION, XEN_DOMCTL_MIN_INTERFACE_VERSION, XEN_MEM_SET_MEMORY_MAP,
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E820Entry, ForeignMemoryMap, PhysdevMapPirq, VcpuGuestContextAny, HYPERVISOR_PHYSDEV_OP,
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PHYSDEVOP_MAP_PIRQ, XEN_DOMCTL_MAX_INTERFACE_VERSION, XEN_DOMCTL_MIN_INTERFACE_VERSION,
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XEN_MEM_SET_MEMORY_MAP,
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};
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use tokio::sync::Semaphore;
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use tokio::time::sleep;
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use std::fs::{File, OpenOptions};
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use std::os::fd::AsRawFd;
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use std::ptr::addr_of_mut;
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use std::ptr::{addr_of_mut, null_mut};
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use std::slice;
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#[derive(Clone)]
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@ -233,8 +237,8 @@ impl XenCall {
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num: num as u32,
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domid: domid as u16,
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addr,
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mfns: mfns.as_mut_ptr(),
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errors: errors.as_mut_ptr(),
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mfns: mfns.as_mut_ptr() as u64,
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errors: errors.as_mut_ptr() as u64,
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};
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let result = sys::mmapbatch(self.handle.as_raw_fd(), &mut batch);
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@ -243,7 +247,7 @@ impl XenCall {
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return Err(Error::MmapBatchFailed(errno))?;
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}
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usleep(100);
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sleep(Duration::from_micros(100)).await;
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let mut i: usize = 0;
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let mut paged: usize = 0;
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@ -258,8 +262,8 @@ impl XenCall {
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num: 1,
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domid: domid as u16,
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addr: addr + ((i as u64) << 12),
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mfns: mfns.as_mut_ptr().add(i),
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errors: errors.as_mut_ptr().add(i),
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mfns: mfns.as_mut_ptr().add(i) as u64,
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errors: errors.as_mut_ptr().add(i) as u64,
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};
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loop {
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@ -459,45 +463,19 @@ impl XenCall {
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Ok(())
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}
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pub async fn get_vcpu_context(&self, domid: u32, vcpu: u32) -> Result<VcpuGuestContext> {
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trace!(
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"domctl fd={} get_vcpu_context domid={}",
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self.handle.as_raw_fd(),
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domid,
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);
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let mut wrapper = VcpuGuestContextAny {
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value: VcpuGuestContext::default(),
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};
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let mut domctl = DomCtl {
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cmd: XEN_DOMCTL_GETVCPUCONTEXT,
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interface_version: self.domctl_interface_version,
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domid,
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value: DomCtlValue {
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vcpu_context: DomCtlVcpuContext {
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vcpu,
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ctx: addr_of_mut!(wrapper) as c_ulong,
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},
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},
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};
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self.hypercall1(HYPERVISOR_DOMCTL, addr_of_mut!(domctl) as c_ulong)
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.await?;
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Ok(unsafe { wrapper.value })
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}
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|
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pub async fn set_vcpu_context(
|
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&self,
|
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domid: u32,
|
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vcpu: u32,
|
||||
context: &VcpuGuestContext,
|
||||
mut context: VcpuGuestContextAny,
|
||||
) -> Result<()> {
|
||||
trace!(
|
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"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,
|
||||
@ -505,7 +483,7 @@ impl XenCall {
|
||||
value: DomCtlValue {
|
||||
vcpu_context: DomCtlVcpuContext {
|
||||
vcpu,
|
||||
ctx: addr_of_mut!(value) as c_ulong,
|
||||
ctx: addr_of_mut!(context) as c_ulong,
|
||||
},
|
||||
},
|
||||
};
|
||||
@ -597,6 +575,12 @@ impl XenCall {
|
||||
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 {
|
||||
@ -633,24 +617,14 @@ 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();
|
||||
@ -680,6 +654,31 @@ 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 };
|
||||
|
||||
@ -783,6 +782,7 @@ impl XenCall {
|
||||
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={:?}",
|
||||
@ -835,4 +835,86 @@ impl XenCall {
|
||||
.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(())
|
||||
}
|
||||
}
|
||||
|
||||
@ -35,8 +35,8 @@ pub struct MmapBatch {
|
||||
pub num: u32,
|
||||
pub domid: u16,
|
||||
pub addr: u64,
|
||||
pub mfns: *mut u64,
|
||||
pub errors: *mut c_int,
|
||||
pub mfns: u64,
|
||||
pub errors: u64,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
@ -200,6 +200,7 @@ pub const XEN_DOMCTL_PSR_CAT_OP: u32 = 78;
|
||||
pub const XEN_DOMCTL_SOFT_RESET: u32 = 79;
|
||||
pub const XEN_DOMCTL_SET_GNTTAB_LIMITS: u32 = 80;
|
||||
pub const XEN_DOMCTL_VUART_OP: u32 = 81;
|
||||
pub const XEN_DOMCTL_SET_PAGING_MEMPOOL_SIZE: u32 = 86;
|
||||
pub const XEN_DOMCTL_GDBSX_GUESTMEMIO: u32 = 1000;
|
||||
pub const XEN_DOMCTL_GDBSX_PAUSEVCPU: u32 = 1001;
|
||||
pub const XEN_DOMCTL_GDBSX_UNPAUSEVCPU: u32 = 1002;
|
||||
@ -242,6 +243,8 @@ pub union DomCtlValue {
|
||||
pub iomem_permission: IoMemPermission,
|
||||
pub irq_permission: IrqPermission,
|
||||
pub assign_device: AssignDevice,
|
||||
pub hvm_context: HvmContext,
|
||||
pub paging_mempool: PagingMempool,
|
||||
pub pad: [u8; 128],
|
||||
}
|
||||
|
||||
@ -267,10 +270,7 @@ impl Default for CreateDomain {
|
||||
CreateDomain {
|
||||
ssidref: SECINITSID_DOMU,
|
||||
handle: Uuid::new_v4().into_bytes(),
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
flags: 0,
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
flags: 1 << XEN_DOMCTL_CDF_HVM_GUEST,
|
||||
iommu_opts: 0,
|
||||
max_vcpus: 1,
|
||||
max_evtchn_port: 1023,
|
||||
@ -346,6 +346,8 @@ pub struct ArchDomainConfig {
|
||||
pub misc_flags: u32,
|
||||
}
|
||||
|
||||
pub const X86_EMU_LAPIC: u32 = 1 << 0;
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug, Default)]
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
@ -398,6 +400,16 @@ pub struct MemoryReservation {
|
||||
pub domid: u16,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
pub struct AddToPhysmap {
|
||||
pub domid: u16,
|
||||
pub size: u16,
|
||||
pub space: u32,
|
||||
pub idx: u64,
|
||||
pub gpfn: u64,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
pub struct MultiCallEntry {
|
||||
@ -410,6 +422,7 @@ pub const XEN_MEM_POPULATE_PHYSMAP: u32 = 6;
|
||||
pub const XEN_MEM_MEMORY_MAP: u32 = 10;
|
||||
pub const XEN_MEM_SET_MEMORY_MAP: u32 = 13;
|
||||
pub const XEN_MEM_CLAIM_PAGES: u32 = 24;
|
||||
pub const XEN_MEM_ADD_TO_PHYSMAP: u32 = 7;
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
@ -439,8 +452,8 @@ impl Default for VcpuGuestContextFpuCtx {
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug, Default)]
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub struct CpuUserRegs {
|
||||
#[allow(non_camel_case_types)]
|
||||
pub struct x8664CpuUserRegs {
|
||||
pub r15: u64,
|
||||
pub r14: u64,
|
||||
pub r13: u64,
|
||||
@ -479,7 +492,6 @@ pub struct CpuUserRegs {
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug, Default)]
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub struct TrapInfo {
|
||||
pub vector: u8,
|
||||
pub flags: u8,
|
||||
@ -489,11 +501,11 @@ pub struct TrapInfo {
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub struct VcpuGuestContext {
|
||||
#[allow(non_camel_case_types)]
|
||||
pub struct x8664VcpuGuestContext {
|
||||
pub fpu_ctx: VcpuGuestContextFpuCtx,
|
||||
pub flags: u64,
|
||||
pub user_regs: CpuUserRegs,
|
||||
pub user_regs: x8664CpuUserRegs,
|
||||
pub trap_ctx: [TrapInfo; 256],
|
||||
pub ldt_base: u64,
|
||||
pub ldt_ents: u64,
|
||||
@ -512,10 +524,9 @@ pub struct VcpuGuestContext {
|
||||
pub gs_base_user: u64,
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
impl Default for VcpuGuestContext {
|
||||
impl Default for x8664VcpuGuestContext {
|
||||
fn default() -> Self {
|
||||
VcpuGuestContext {
|
||||
Self {
|
||||
fpu_ctx: Default::default(),
|
||||
flags: 0,
|
||||
user_regs: Default::default(),
|
||||
@ -541,8 +552,7 @@ impl Default for VcpuGuestContext {
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug, Default)]
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub struct CpuUserRegs {
|
||||
pub struct Arm64CpuUserRegs {
|
||||
pub x0: u64,
|
||||
pub x1: u64,
|
||||
pub x2: u64,
|
||||
@ -588,10 +598,9 @@ pub struct CpuUserRegs {
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Copy, Clone, Debug, Default)]
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub struct VcpuGuestContext {
|
||||
pub struct Arm64VcpuGuestContext {
|
||||
pub flags: u32,
|
||||
pub user_regs: CpuUserRegs,
|
||||
pub user_regs: x8664CpuUserRegs,
|
||||
pub sctlr: u64,
|
||||
pub ttbcr: u64,
|
||||
pub ttbr0: u64,
|
||||
@ -599,7 +608,10 @@ pub struct VcpuGuestContext {
|
||||
}
|
||||
|
||||
pub union VcpuGuestContextAny {
|
||||
pub value: VcpuGuestContext,
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub value: Arm64VcpuGuestContext,
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub value: x8664VcpuGuestContext,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
@ -628,17 +640,11 @@ pub struct E820Entry {
|
||||
pub typ: u32,
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub const E820_MAX: u32 = 1024;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub const E820_RAM: u32 = 1;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub const E820_RESERVED: u32 = 2;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub const E820_ACPI: u32 = 3;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub const E820_NVS: u32 = 4;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub const E820_UNUSABLE: u32 = 5;
|
||||
|
||||
pub const PHYSDEVOP_MAP_PIRQ: u64 = 13;
|
||||
@ -676,3 +682,34 @@ pub struct AssignDevice {
|
||||
}
|
||||
|
||||
pub const DOMID_IO: u32 = 0x7FF1;
|
||||
pub const MEMFLAGS_POPULATE_ON_DEMAND: u32 = 1 << 16;
|
||||
|
||||
pub struct PodTarget {
|
||||
pub target_pages: u64,
|
||||
pub total_pages: u64,
|
||||
pub pod_cache_pages: u64,
|
||||
pub pod_entries: u64,
|
||||
pub domid: u16,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Default, Clone, Copy, Debug)]
|
||||
pub struct HvmParam {
|
||||
pub domid: u16,
|
||||
pub pad: u8,
|
||||
pub index: u32,
|
||||
pub value: u64,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct HvmContext {
|
||||
pub size: u32,
|
||||
pub buffer: u64,
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct PagingMempool {
|
||||
pub size: u64,
|
||||
}
|
||||
|
||||
@ -10,6 +10,7 @@ resolver = "2"
|
||||
|
||||
[dependencies]
|
||||
async-trait = { workspace = true }
|
||||
c2rust-bitfields = "0.18.0"
|
||||
elf = { workspace = true }
|
||||
flate2 = { workspace = true }
|
||||
indexmap = { workspace = true }
|
||||
|
||||
@ -3,6 +3,12 @@ use tokio::fs;
|
||||
use xenclient::error::Result;
|
||||
use xenclient::{DomainConfig, XenClient};
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
type RuntimePlatform = xenclient::x86pv::X86PvPlatform;
|
||||
|
||||
#[cfg(not(target_arch = "x86_64"))]
|
||||
type RuntimePlatform = xenclient::unsupported::UnsupportedPlatform;
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<()> {
|
||||
env_logger::init();
|
||||
@ -14,7 +20,7 @@ async fn main() -> Result<()> {
|
||||
}
|
||||
let kernel_image_path = args.get(1).expect("argument not specified");
|
||||
let initrd_path = args.get(2).expect("argument not specified");
|
||||
let client = XenClient::open(0).await?;
|
||||
let client = XenClient::new(0, RuntimePlatform::new()).await?;
|
||||
let config = DomainConfig {
|
||||
backend_domid: 0,
|
||||
name: "xenclient-test".to_string(),
|
||||
@ -22,8 +28,8 @@ async fn main() -> Result<()> {
|
||||
mem_mb: 512,
|
||||
kernel: fs::read(&kernel_image_path).await?,
|
||||
initrd: fs::read(&initrd_path).await?,
|
||||
cmdline: "debug elevator=noop".to_string(),
|
||||
use_console_backend: None,
|
||||
cmdline: "earlyprintk=xen earlycon=xen console=hvc0 init=/init".to_string(),
|
||||
swap_console_backend: None,
|
||||
disks: vec![],
|
||||
channels: vec![],
|
||||
vifs: vec![],
|
||||
|
||||
@ -1,288 +0,0 @@
|
||||
use crate::boot::{ArchBootSetup, BootImageInfo, BootSetup, BootState, DomainSegment};
|
||||
use crate::error::Result;
|
||||
use crate::sys::XEN_PAGE_SHIFT;
|
||||
use crate::Error;
|
||||
use log::trace;
|
||||
use xencall::sys::VcpuGuestContext;
|
||||
|
||||
pub const ARM_PAGE_SHIFT: u64 = 12;
|
||||
const ARM_PAGE_SIZE: u64 = 1 << ARM_PAGE_SHIFT;
|
||||
|
||||
const GUEST_RAM0_BASE: u64 = 0x40000000;
|
||||
const GUEST_RAM0_SIZE: u64 = 0xc0000000;
|
||||
const GUEST_RAM1_BASE: u64 = 0x0200000000;
|
||||
const GUEST_RAM1_SIZE: u64 = 0xfe00000000;
|
||||
|
||||
const GUEST_RAM_BANK_BASES: [u64; 2] = [GUEST_RAM0_BASE, GUEST_RAM1_BASE];
|
||||
const GUEST_RAM_BANK_SIZES: [u64; 2] = [GUEST_RAM0_SIZE, GUEST_RAM1_SIZE];
|
||||
|
||||
const LPAE_SHIFT: u64 = 9;
|
||||
const PFN_4K_SHIFT: u64 = 0;
|
||||
const PFN_2M_SHIFT: u64 = PFN_4K_SHIFT + LPAE_SHIFT;
|
||||
const PFN_1G_SHIFT: u64 = PFN_2M_SHIFT + LPAE_SHIFT;
|
||||
const PFN_512G_SHIFT: u64 = PFN_1G_SHIFT + LPAE_SHIFT;
|
||||
|
||||
const PSR_FIQ_MASK: u64 = 1 << 6; /* Fast Interrupt mask */
|
||||
const PSR_IRQ_MASK: u64 = 1 << 7; /* Interrupt mask */
|
||||
const PSR_ABT_MASK: u64 = 1 << 8; /* Asynchronous Abort mask */
|
||||
const PSR_MODE_EL1H: u64 = 0x05;
|
||||
const PSR_GUEST64_INIT: u64 = PSR_ABT_MASK | PSR_FIQ_MASK | PSR_IRQ_MASK | PSR_MODE_EL1H;
|
||||
|
||||
pub struct Arm64BootSetup {}
|
||||
|
||||
impl Default for Arm64BootSetup {
|
||||
fn default() -> Self {
|
||||
Self::new()
|
||||
}
|
||||
}
|
||||
|
||||
impl Arm64BootSetup {
|
||||
pub fn new() -> Arm64BootSetup {
|
||||
Arm64BootSetup {}
|
||||
}
|
||||
|
||||
async fn populate_one_size(
|
||||
&self,
|
||||
setup: &mut BootSetup<'_>,
|
||||
pfn_shift: u64,
|
||||
base_pfn: u64,
|
||||
pfn_count: u64,
|
||||
extents: &mut [u64],
|
||||
) -> Result<u64> {
|
||||
let mask = (1u64 << pfn_shift) - 1;
|
||||
let next_shift = pfn_shift + LPAE_SHIFT;
|
||||
let next_mask = (1u64 << next_shift) - 1;
|
||||
let next_boundary = (base_pfn + (1 << next_shift)) - 1;
|
||||
|
||||
let mut end_pfn = base_pfn + pfn_count;
|
||||
|
||||
if pfn_shift == PFN_512G_SHIFT {
|
||||
return Ok(0);
|
||||
}
|
||||
|
||||
if (base_pfn & next_mask) != 0 && end_pfn > next_boundary {
|
||||
end_pfn = next_boundary;
|
||||
}
|
||||
|
||||
if (mask & base_pfn) != 0 {
|
||||
return Ok(0);
|
||||
}
|
||||
|
||||
let count = (end_pfn - base_pfn) >> pfn_shift;
|
||||
|
||||
if count == 0 {
|
||||
return Ok(0);
|
||||
}
|
||||
|
||||
for i in 0..count {
|
||||
extents[i as usize] = base_pfn + (i << pfn_shift);
|
||||
}
|
||||
|
||||
let result_extents = setup
|
||||
.call
|
||||
.populate_physmap(
|
||||
setup.domid,
|
||||
count,
|
||||
pfn_shift as u32,
|
||||
0,
|
||||
&extents[0usize..count as usize],
|
||||
)
|
||||
.await?;
|
||||
slice_copy::copy(extents, &result_extents);
|
||||
Ok((result_extents.len() as u64) << pfn_shift)
|
||||
}
|
||||
|
||||
async fn populate_guest_memory(
|
||||
&mut self,
|
||||
setup: &mut BootSetup<'_>,
|
||||
base_pfn: u64,
|
||||
pfn_count: u64,
|
||||
) -> Result<()> {
|
||||
let mut extents = vec![0u64; 1024 * 1024];
|
||||
|
||||
for pfn in 0..extents.len() {
|
||||
let mut allocsz = (1024 * 1024).min(pfn_count - pfn as u64);
|
||||
allocsz = self
|
||||
.populate_one_size(
|
||||
setup,
|
||||
PFN_512G_SHIFT,
|
||||
base_pfn + pfn as u64,
|
||||
allocsz,
|
||||
&mut extents,
|
||||
)
|
||||
.await?;
|
||||
if allocsz > 0 {
|
||||
continue;
|
||||
}
|
||||
allocsz = self
|
||||
.populate_one_size(
|
||||
setup,
|
||||
PFN_1G_SHIFT,
|
||||
base_pfn + pfn as u64,
|
||||
allocsz,
|
||||
&mut extents,
|
||||
)
|
||||
.await?;
|
||||
if allocsz > 0 {
|
||||
continue;
|
||||
}
|
||||
allocsz = self
|
||||
.populate_one_size(
|
||||
setup,
|
||||
PFN_2M_SHIFT,
|
||||
base_pfn + pfn as u64,
|
||||
allocsz,
|
||||
&mut extents,
|
||||
)
|
||||
.await?;
|
||||
if allocsz > 0 {
|
||||
continue;
|
||||
}
|
||||
allocsz = self
|
||||
.populate_one_size(
|
||||
setup,
|
||||
PFN_4K_SHIFT,
|
||||
base_pfn + pfn as u64,
|
||||
allocsz,
|
||||
&mut extents,
|
||||
)
|
||||
.await?;
|
||||
if allocsz == 0 {
|
||||
return Err(Error::MemorySetupFailed("allocsz is zero"));
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
impl ArchBootSetup for Arm64BootSetup {
|
||||
fn page_size(&mut self) -> u64 {
|
||||
ARM_PAGE_SIZE
|
||||
}
|
||||
|
||||
fn page_shift(&mut self) -> u64 {
|
||||
ARM_PAGE_SHIFT
|
||||
}
|
||||
|
||||
fn needs_early_kernel(&mut self) -> bool {
|
||||
true
|
||||
}
|
||||
|
||||
async fn setup_shared_info(&mut self, _: &mut BootSetup, _: u64) -> Result<()> {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn setup_start_info(&mut self, _: &mut BootSetup, _: &BootState, _: &str) -> Result<()> {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn meminit(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
total_pages: u64,
|
||||
kernel_segment: &Option<DomainSegment>,
|
||||
initrd_segment: &Option<DomainSegment>,
|
||||
) -> Result<()> {
|
||||
let kernel_segment = kernel_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("kernel_segment missing"))?;
|
||||
setup.call.claim_pages(setup.domid, total_pages).await?;
|
||||
let mut ramsize = total_pages << XEN_PAGE_SHIFT;
|
||||
|
||||
let bankbase = GUEST_RAM_BANK_BASES;
|
||||
let bankmax = GUEST_RAM_BANK_SIZES;
|
||||
|
||||
let kernbase = kernel_segment.vstart;
|
||||
let kernend = BootSetup::round_up(kernel_segment.size, 21);
|
||||
let dtb = setup.dtb.as_ref();
|
||||
let dtb_size = dtb.map(|blob| BootSetup::round_up(blob.len() as u64, XEN_PAGE_SHIFT));
|
||||
let ramdisk_size = initrd_segment
|
||||
.as_ref()
|
||||
.map(|segment| BootSetup::round_up(segment.size, XEN_PAGE_SHIFT));
|
||||
let modsize = dtb_size.unwrap_or(0) + ramdisk_size.unwrap_or(0);
|
||||
let ram128mb = bankbase[0] + (128 << 20);
|
||||
|
||||
let mut rambank_size: [u64; 2] = [0, 0];
|
||||
for i in 0..2 {
|
||||
let size = if ramsize > bankmax[i] {
|
||||
bankmax[i]
|
||||
} else {
|
||||
ramsize
|
||||
};
|
||||
ramsize -= size;
|
||||
rambank_size[i] = size >> XEN_PAGE_SHIFT;
|
||||
}
|
||||
|
||||
for i in 0..2 {
|
||||
let size = if ramsize > bankmax[i] {
|
||||
bankmax[i]
|
||||
} else {
|
||||
ramsize
|
||||
};
|
||||
ramsize -= size;
|
||||
rambank_size[i] = size >> XEN_PAGE_SHIFT;
|
||||
}
|
||||
|
||||
for i in 0..2 {
|
||||
self.populate_guest_memory(setup, bankbase[i] >> XEN_PAGE_SHIFT, rambank_size[i])
|
||||
.await?;
|
||||
}
|
||||
|
||||
let bank0end = bankbase[0] + (rambank_size[0] << XEN_PAGE_SHIFT);
|
||||
let _modbase = if bank0end >= ram128mb + modsize && kernend < ram128mb {
|
||||
ram128mb
|
||||
} else if bank0end - modsize > kernend {
|
||||
bank0end - modsize
|
||||
} else if kernbase - bankbase[0] > modsize {
|
||||
kernbase - modsize
|
||||
} else {
|
||||
return Err(Error::MemorySetupFailed("unable to determine modbase"));
|
||||
};
|
||||
setup.call.claim_pages(setup.domid, 0).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn bootlate(&mut self, _: &mut BootSetup, _: &mut BootState) -> Result<()> {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn vcpu(&mut self, setup: &mut BootSetup, state: &mut BootState) -> Result<()> {
|
||||
let mut vcpu = VcpuGuestContext::default();
|
||||
vcpu.user_regs.pc = state.image_info.virt_entry;
|
||||
vcpu.user_regs.x0 = 0xffffffff;
|
||||
vcpu.user_regs.x1 = 0;
|
||||
vcpu.user_regs.x2 = 0;
|
||||
vcpu.user_regs.x3 = 0;
|
||||
vcpu.sctlr = 0x00c50078;
|
||||
vcpu.ttbr0 = 0;
|
||||
vcpu.ttbr1 = 0;
|
||||
vcpu.ttbcr = 0;
|
||||
vcpu.user_regs.cpsr = PSR_GUEST64_INIT;
|
||||
vcpu.flags = 1 << 0; // VGCF_ONLINE
|
||||
trace!("vcpu context: {:?}", vcpu);
|
||||
setup.call.set_vcpu_context(setup.domid, 0, &vcpu).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn alloc_p2m_segment(
|
||||
&mut self,
|
||||
_: &mut BootSetup,
|
||||
_: &BootImageInfo,
|
||||
) -> Result<Option<DomainSegment>> {
|
||||
Ok(None)
|
||||
}
|
||||
|
||||
async fn alloc_page_tables(
|
||||
&mut self,
|
||||
_: &mut BootSetup,
|
||||
_: &BootImageInfo,
|
||||
) -> Result<Option<DomainSegment>> {
|
||||
Ok(None)
|
||||
}
|
||||
|
||||
async fn setup_page_tables(&mut self, _: &mut BootSetup, _: &mut BootState) -> Result<()> {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@ -1,292 +1,64 @@
|
||||
use crate::error::Result;
|
||||
use crate::mem::PhysicalPages;
|
||||
use crate::sys::{GrantEntry, XEN_PAGE_SHIFT};
|
||||
use crate::Error;
|
||||
use libc::munmap;
|
||||
use log::debug;
|
||||
use nix::errno::Errno;
|
||||
use slice_copy::copy;
|
||||
|
||||
use crate::mem::ARCH_PAGE_SHIFT;
|
||||
use std::ffi::c_void;
|
||||
use std::slice;
|
||||
use xencall::XenCall;
|
||||
|
||||
pub trait BootImageLoader {
|
||||
fn parse(&self) -> Result<BootImageInfo>;
|
||||
fn load(&self, image_info: &BootImageInfo, dst: &mut [u8]) -> Result<()>;
|
||||
use log::debug;
|
||||
use slice_copy::copy;
|
||||
use xencall::{sys::CreateDomain, XenCall};
|
||||
|
||||
use crate::{
|
||||
error::{Error, Result},
|
||||
mem::PhysicalPages,
|
||||
sys::XEN_PAGE_SHIFT,
|
||||
};
|
||||
|
||||
pub struct BootSetup<I: BootImageLoader, P: BootSetupPlatform> {
|
||||
pub call: XenCall,
|
||||
pub domid: u32,
|
||||
pub platform: P,
|
||||
pub image_loader: I,
|
||||
pub dtb: Option<Vec<u8>>,
|
||||
}
|
||||
|
||||
pub const XEN_UNSET_ADDR: u64 = -1i64 as u64;
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct BootImageInfo {
|
||||
pub start: u64,
|
||||
pub virt_base: u64,
|
||||
pub virt_kstart: u64,
|
||||
pub virt_kend: u64,
|
||||
pub virt_hypercall: u64,
|
||||
pub virt_entry: u64,
|
||||
pub virt_p2m_base: u64,
|
||||
pub unmapped_initrd: bool,
|
||||
}
|
||||
|
||||
pub struct BootSetup<'a> {
|
||||
pub(crate) call: &'a XenCall,
|
||||
pub phys: PhysicalPages<'a>,
|
||||
pub(crate) domid: u32,
|
||||
pub(crate) virt_alloc_end: u64,
|
||||
pub(crate) pfn_alloc_end: u64,
|
||||
pub(crate) virt_pgtab_end: u64,
|
||||
pub(crate) total_pages: u64,
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub(crate) dtb: Option<Vec<u8>>,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
#[derive(Debug, Default, Clone)]
|
||||
pub struct DomainSegment {
|
||||
pub(crate) vstart: u64,
|
||||
vend: u64,
|
||||
pub vstart: u64,
|
||||
pub vend: u64,
|
||||
pub pfn: u64,
|
||||
pub(crate) addr: u64,
|
||||
pub(crate) size: u64,
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub(crate) pages: u64,
|
||||
pub addr: u64,
|
||||
pub size: u64,
|
||||
pub pages: u64,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct BootState {
|
||||
pub kernel_segment: DomainSegment,
|
||||
pub start_info_segment: DomainSegment,
|
||||
pub xenstore_segment: DomainSegment,
|
||||
pub boot_stack_segment: DomainSegment,
|
||||
pub p2m_segment: Option<DomainSegment>,
|
||||
pub page_table_segment: Option<DomainSegment>,
|
||||
pub struct BootDomain {
|
||||
pub domid: u32,
|
||||
pub call: XenCall,
|
||||
pub page_size: u64,
|
||||
pub virt_alloc_end: u64,
|
||||
pub pfn_alloc_end: u64,
|
||||
pub virt_pgtab_end: u64,
|
||||
pub total_pages: u64,
|
||||
pub target_pages: u64,
|
||||
pub max_vcpus: u32,
|
||||
pub image_info: BootImageInfo,
|
||||
pub shared_info_frame: u64,
|
||||
pub initrd_segment: DomainSegment,
|
||||
pub phys: PhysicalPages,
|
||||
pub store_evtchn: u32,
|
||||
pub consoles: Vec<(u32, DomainSegment)>,
|
||||
pub store_mfn: u64,
|
||||
pub initrd_segment: DomainSegment,
|
||||
pub consoles: Vec<(u32, u64)>,
|
||||
pub cmdline: String,
|
||||
}
|
||||
|
||||
impl BootSetup<'_> {
|
||||
pub fn new(call: &XenCall, domid: u32) -> BootSetup {
|
||||
BootSetup {
|
||||
call,
|
||||
phys: PhysicalPages::new(call, domid),
|
||||
domid,
|
||||
virt_alloc_end: 0,
|
||||
pfn_alloc_end: 0,
|
||||
virt_pgtab_end: 0,
|
||||
total_pages: 0,
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
dtb: None,
|
||||
}
|
||||
impl BootDomain {
|
||||
pub async fn alloc_module(&mut self, buffer: &[u8]) -> Result<DomainSegment> {
|
||||
let segment = self.alloc_segment(0, buffer.len() as u64).await?;
|
||||
let slice = unsafe { slice::from_raw_parts_mut(segment.addr as *mut u8, buffer.len()) };
|
||||
copy(slice, buffer);
|
||||
Ok(segment)
|
||||
}
|
||||
|
||||
async fn initialize_memory(
|
||||
&mut self,
|
||||
arch: &mut Box<dyn ArchBootSetup + Send + Sync>,
|
||||
total_pages: u64,
|
||||
kernel_segment: &Option<DomainSegment>,
|
||||
initrd_segment: &Option<DomainSegment>,
|
||||
) -> Result<()> {
|
||||
self.call.set_address_size(self.domid, 64).await?;
|
||||
arch.meminit(self, total_pages, kernel_segment, initrd_segment)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn setup_hypercall_page(&mut self, image_info: &BootImageInfo) -> Result<()> {
|
||||
if image_info.virt_hypercall == XEN_UNSET_ADDR {
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
let pfn = (image_info.virt_hypercall - image_info.virt_base) >> ARCH_PAGE_SHIFT;
|
||||
let mfn = self.phys.p2m[pfn as usize];
|
||||
self.call.hypercall_init(self.domid, mfn).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn initialize<I: BootImageLoader + Send + Sync>(
|
||||
&mut self,
|
||||
arch: &mut Box<dyn ArchBootSetup + Send + Sync>,
|
||||
image_loader: &I,
|
||||
initrd: &[u8],
|
||||
max_vcpus: u32,
|
||||
mem_mb: u64,
|
||||
console_count: usize,
|
||||
) -> Result<BootState> {
|
||||
debug!("initialize max_vcpus={:?} mem_mb={:?}", max_vcpus, mem_mb);
|
||||
|
||||
let page_size = arch.page_size();
|
||||
let image_info = image_loader.parse()?;
|
||||
debug!("initialize image_info={:?}", image_info);
|
||||
let mut kernel_segment: Option<DomainSegment> = None;
|
||||
let mut initrd_segment: Option<DomainSegment> = None;
|
||||
if !image_info.unmapped_initrd {
|
||||
initrd_segment = Some(self.alloc_module(page_size, initrd).await?);
|
||||
}
|
||||
|
||||
if arch.needs_early_kernel() {
|
||||
kernel_segment = Some(
|
||||
self.load_kernel_segment(page_size, image_loader, &image_info)
|
||||
.await?,
|
||||
);
|
||||
}
|
||||
|
||||
let total_pages = mem_mb << (20 - arch.page_shift());
|
||||
self.initialize_memory(arch, total_pages, &kernel_segment, &initrd_segment)
|
||||
.await?;
|
||||
self.virt_alloc_end = image_info.virt_base;
|
||||
|
||||
if kernel_segment.is_none() {
|
||||
kernel_segment = Some(
|
||||
self.load_kernel_segment(page_size, image_loader, &image_info)
|
||||
.await?,
|
||||
);
|
||||
}
|
||||
|
||||
let mut p2m_segment: Option<DomainSegment> = None;
|
||||
if image_info.virt_p2m_base >= image_info.virt_base
|
||||
|| (image_info.virt_p2m_base & ((1 << arch.page_shift()) - 1)) != 0
|
||||
{
|
||||
p2m_segment = arch.alloc_p2m_segment(self, &image_info).await?;
|
||||
}
|
||||
let start_info_segment = self.alloc_page(page_size)?;
|
||||
let xenstore_segment = self.alloc_page(page_size)?;
|
||||
let mut consoles: Vec<(u32, DomainSegment)> = Vec::new();
|
||||
for _ in 0..console_count {
|
||||
let evtchn = self.call.evtchn_alloc_unbound(self.domid, 0).await?;
|
||||
let page = self.alloc_page(page_size)?;
|
||||
consoles.push((evtchn, page));
|
||||
}
|
||||
let page_table_segment = arch.alloc_page_tables(self, &image_info).await?;
|
||||
let boot_stack_segment = self.alloc_page(page_size)?;
|
||||
|
||||
if self.virt_pgtab_end > 0 {
|
||||
self.alloc_padding_pages(page_size, self.virt_pgtab_end)?;
|
||||
}
|
||||
|
||||
if p2m_segment.is_none() {
|
||||
if let Some(mut segment) = arch.alloc_p2m_segment(self, &image_info).await? {
|
||||
segment.vstart = image_info.virt_p2m_base;
|
||||
p2m_segment = Some(segment);
|
||||
}
|
||||
}
|
||||
|
||||
if image_info.unmapped_initrd {
|
||||
initrd_segment = Some(self.alloc_module(page_size, initrd).await?);
|
||||
}
|
||||
|
||||
let initrd_segment = initrd_segment.unwrap();
|
||||
let store_evtchn = self.call.evtchn_alloc_unbound(self.domid, 0).await?;
|
||||
|
||||
let kernel_segment =
|
||||
kernel_segment.ok_or(Error::MemorySetupFailed("kernel_segment missing"))?;
|
||||
|
||||
let state = BootState {
|
||||
kernel_segment,
|
||||
start_info_segment,
|
||||
xenstore_segment,
|
||||
consoles,
|
||||
boot_stack_segment,
|
||||
p2m_segment,
|
||||
page_table_segment,
|
||||
image_info,
|
||||
initrd_segment,
|
||||
store_evtchn,
|
||||
shared_info_frame: 0,
|
||||
};
|
||||
debug!("initialize state={:?}", state);
|
||||
Ok(state)
|
||||
}
|
||||
|
||||
pub async fn boot(
|
||||
&mut self,
|
||||
arch: &mut Box<dyn ArchBootSetup + Send + Sync>,
|
||||
state: &mut BootState,
|
||||
cmdline: &str,
|
||||
) -> Result<()> {
|
||||
let domain_info = self.call.get_domain_info(self.domid).await?;
|
||||
let shared_info_frame = domain_info.shared_info_frame;
|
||||
state.shared_info_frame = shared_info_frame;
|
||||
arch.setup_page_tables(self, state).await?;
|
||||
arch.setup_start_info(self, state, cmdline).await?;
|
||||
self.setup_hypercall_page(&state.image_info).await?;
|
||||
arch.bootlate(self, state).await?;
|
||||
arch.setup_shared_info(self, state.shared_info_frame)
|
||||
.await?;
|
||||
arch.vcpu(self, state).await?;
|
||||
self.phys.unmap_all()?;
|
||||
self.gnttab_seed(state).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn gnttab_seed(&mut self, state: &mut BootState) -> Result<()> {
|
||||
let console_gfn =
|
||||
self.phys.p2m[state.consoles.first().map(|x| x.1.pfn).unwrap_or(0) as usize];
|
||||
let xenstore_gfn = self.phys.p2m[state.xenstore_segment.pfn as usize];
|
||||
let addr = self
|
||||
.call
|
||||
.mmap(0, 1 << XEN_PAGE_SHIFT)
|
||||
.await
|
||||
.ok_or(Error::MmapFailed)?;
|
||||
self.call.map_resource(self.domid, 1, 0, 0, 1, addr).await?;
|
||||
let entries = unsafe { slice::from_raw_parts_mut(addr as *mut GrantEntry, 2) };
|
||||
entries[0].flags = 1 << 0;
|
||||
entries[0].domid = 0;
|
||||
entries[0].frame = console_gfn as u32;
|
||||
entries[1].flags = 1 << 0;
|
||||
entries[1].domid = 0;
|
||||
entries[1].frame = xenstore_gfn as u32;
|
||||
unsafe {
|
||||
let result = munmap(addr as *mut c_void, 1 << XEN_PAGE_SHIFT);
|
||||
if result != 0 {
|
||||
return Err(Error::UnmapFailed(Errno::from_raw(result)));
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn load_kernel_segment<I: BootImageLoader + Send + Sync>(
|
||||
&mut self,
|
||||
page_size: u64,
|
||||
image_loader: &I,
|
||||
image_info: &BootImageInfo,
|
||||
) -> Result<DomainSegment> {
|
||||
let kernel_segment = self
|
||||
.alloc_segment(
|
||||
page_size,
|
||||
image_info.virt_kstart,
|
||||
image_info.virt_kend - image_info.virt_kstart,
|
||||
)
|
||||
.await?;
|
||||
let kernel_segment_ptr = kernel_segment.addr as *mut u8;
|
||||
let kernel_segment_slice =
|
||||
unsafe { slice::from_raw_parts_mut(kernel_segment_ptr, kernel_segment.size as usize) };
|
||||
image_loader.load(image_info, kernel_segment_slice)?;
|
||||
Ok(kernel_segment)
|
||||
}
|
||||
|
||||
pub(crate) fn round_up(addr: u64, mask: u64) -> u64 {
|
||||
addr | mask
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub(crate) fn bits_to_mask(bits: u64) -> u64 {
|
||||
(1 << bits) - 1
|
||||
}
|
||||
|
||||
pub(crate) async fn alloc_segment(
|
||||
&mut self,
|
||||
page_size: u64,
|
||||
start: u64,
|
||||
size: u64,
|
||||
) -> Result<DomainSegment> {
|
||||
pub async fn alloc_segment(&mut self, start: u64, size: u64) -> Result<DomainSegment> {
|
||||
debug!("alloc_segment {:#x} {:#x}", start, size);
|
||||
if start > 0 {
|
||||
self.alloc_padding_pages(page_size, start)?;
|
||||
self.alloc_padding_pages(start)?;
|
||||
}
|
||||
|
||||
let local_page_size: u32 = (1i64 << XEN_PAGE_SHIFT) as u32;
|
||||
@ -299,11 +71,10 @@ impl BootSetup<'_> {
|
||||
pfn: self.pfn_alloc_end,
|
||||
addr: 0,
|
||||
size,
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pages,
|
||||
};
|
||||
|
||||
self.chk_alloc_pages(page_size, pages)?;
|
||||
self.chk_alloc_pages(pages)?;
|
||||
|
||||
let ptr = self.phys.pfn_to_ptr(segment.pfn, pages).await?;
|
||||
segment.addr = ptr;
|
||||
@ -319,46 +90,20 @@ impl BootSetup<'_> {
|
||||
Ok(segment)
|
||||
}
|
||||
|
||||
fn alloc_page(&mut self, page_size: u64) -> Result<DomainSegment> {
|
||||
let start = self.virt_alloc_end;
|
||||
let pfn = self.pfn_alloc_end;
|
||||
|
||||
self.chk_alloc_pages(page_size, 1)?;
|
||||
debug!("alloc_page {:#x} (pfn {:#x})", start, pfn);
|
||||
Ok(DomainSegment {
|
||||
vstart: start,
|
||||
vend: (start + page_size) - 1,
|
||||
pfn,
|
||||
addr: 0,
|
||||
size: 0,
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pages: 1,
|
||||
})
|
||||
}
|
||||
|
||||
async fn alloc_module(&mut self, page_size: u64, buffer: &[u8]) -> Result<DomainSegment> {
|
||||
let segment = self
|
||||
.alloc_segment(page_size, 0, buffer.len() as u64)
|
||||
.await?;
|
||||
let slice = unsafe { slice::from_raw_parts_mut(segment.addr as *mut u8, buffer.len()) };
|
||||
copy(slice, buffer);
|
||||
Ok(segment)
|
||||
}
|
||||
|
||||
fn alloc_padding_pages(&mut self, page_size: u64, boundary: u64) -> Result<()> {
|
||||
if (boundary & (page_size - 1)) != 0 {
|
||||
pub fn alloc_padding_pages(&mut self, boundary: u64) -> Result<()> {
|
||||
if (boundary & (self.page_size - 1)) != 0 {
|
||||
return Err(Error::MemorySetupFailed("boundary is incorrect"));
|
||||
}
|
||||
|
||||
if boundary < self.virt_alloc_end {
|
||||
return Err(Error::MemorySetupFailed("boundary is below allocation end"));
|
||||
}
|
||||
let pages = (boundary - self.virt_alloc_end) / page_size;
|
||||
self.chk_alloc_pages(page_size, pages)?;
|
||||
let pages = (boundary - self.virt_alloc_end) / self.page_size;
|
||||
self.chk_alloc_pages(pages)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn chk_alloc_pages(&mut self, page_size: u64, pages: u64) -> Result<()> {
|
||||
pub fn chk_alloc_pages(&mut self, pages: u64) -> Result<()> {
|
||||
if pages > self.total_pages
|
||||
|| self.pfn_alloc_end > self.total_pages
|
||||
|| pages > self.total_pages - self.pfn_alloc_end
|
||||
@ -367,56 +112,210 @@ impl BootSetup<'_> {
|
||||
}
|
||||
|
||||
self.pfn_alloc_end += pages;
|
||||
self.virt_alloc_end += pages * page_size;
|
||||
self.virt_alloc_end += pages * self.page_size;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn alloc_page(&mut self) -> Result<DomainSegment> {
|
||||
let start = self.virt_alloc_end;
|
||||
let pfn = self.pfn_alloc_end;
|
||||
|
||||
self.chk_alloc_pages(1)?;
|
||||
debug!("alloc_page {:#x} (pfn {:#x})", start, pfn);
|
||||
Ok(DomainSegment {
|
||||
vstart: start,
|
||||
vend: (start + self.page_size) - 1,
|
||||
pfn,
|
||||
addr: 0,
|
||||
size: 0,
|
||||
pages: 1,
|
||||
})
|
||||
}
|
||||
|
||||
pub fn round_up(addr: u64, mask: u64) -> u64 {
|
||||
addr | mask
|
||||
}
|
||||
|
||||
pub fn bits_to_mask(bits: u64) -> u64 {
|
||||
(1 << bits) - 1
|
||||
}
|
||||
}
|
||||
|
||||
impl<I: BootImageLoader, P: BootSetupPlatform> BootSetup<I, P> {
|
||||
pub fn new(
|
||||
call: XenCall,
|
||||
domid: u32,
|
||||
platform: P,
|
||||
image_loader: I,
|
||||
dtb: Option<Vec<u8>>,
|
||||
) -> BootSetup<I, P> {
|
||||
BootSetup {
|
||||
call,
|
||||
domid,
|
||||
platform,
|
||||
image_loader,
|
||||
dtb,
|
||||
}
|
||||
}
|
||||
|
||||
pub async fn initialize(
|
||||
&mut self,
|
||||
initrd: &[u8],
|
||||
mem_mb: u64,
|
||||
max_vcpus: u32,
|
||||
cmdline: &str,
|
||||
) -> Result<BootDomain> {
|
||||
let total_pages = mem_mb << (20 - self.platform.page_shift());
|
||||
let image_info = self.image_loader.parse(self.platform.hvm()).await?;
|
||||
let mut domain = BootDomain {
|
||||
domid: self.domid,
|
||||
call: self.call.clone(),
|
||||
virt_alloc_end: 0,
|
||||
virt_pgtab_end: 0,
|
||||
pfn_alloc_end: 0,
|
||||
total_pages,
|
||||
target_pages: total_pages,
|
||||
page_size: self.platform.page_size(),
|
||||
image_info,
|
||||
consoles: Vec::new(),
|
||||
max_vcpus,
|
||||
phys: PhysicalPages::new(self.call.clone(), self.domid, self.platform.page_shift()),
|
||||
initrd_segment: DomainSegment::default(),
|
||||
store_evtchn: 0,
|
||||
store_mfn: 0,
|
||||
cmdline: cmdline.to_string(),
|
||||
};
|
||||
|
||||
self.platform.initialize_early(&mut domain).await?;
|
||||
|
||||
let mut initrd_segment = if !domain.image_info.unmapped_initrd {
|
||||
Some(domain.alloc_module(initrd).await?)
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
let mut kernel_segment = if self.platform.needs_early_kernel() {
|
||||
Some(self.load_kernel_segment(&mut domain).await?)
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
self.platform.initialize_memory(&mut domain).await?;
|
||||
domain.virt_alloc_end = domain.image_info.virt_base;
|
||||
|
||||
if kernel_segment.is_none() {
|
||||
kernel_segment = Some(self.load_kernel_segment(&mut domain).await?);
|
||||
}
|
||||
|
||||
if domain.image_info.unmapped_initrd {
|
||||
initrd_segment = Some(domain.alloc_module(initrd).await?);
|
||||
}
|
||||
|
||||
domain.initrd_segment =
|
||||
initrd_segment.ok_or(Error::MemorySetupFailed("initrd_segment missing"))?;
|
||||
|
||||
self.platform.alloc_magic_pages(&mut domain).await?;
|
||||
|
||||
domain.store_evtchn = self.call.evtchn_alloc_unbound(self.domid, 0).await?;
|
||||
|
||||
let _kernel_segment =
|
||||
kernel_segment.ok_or(Error::MemorySetupFailed("kernel_segment missing"))?;
|
||||
|
||||
Ok(domain)
|
||||
}
|
||||
|
||||
pub async fn boot(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
let domain_info = self.call.get_domain_info(self.domid).await?;
|
||||
let shared_info_frame = domain_info.shared_info_frame;
|
||||
self.platform.setup_page_tables(domain).await?;
|
||||
self.platform
|
||||
.setup_start_info(domain, shared_info_frame)
|
||||
.await?;
|
||||
self.platform.setup_hypercall_page(domain).await?;
|
||||
self.platform.bootlate(domain).await?;
|
||||
self.platform
|
||||
.setup_shared_info(domain, shared_info_frame)
|
||||
.await?;
|
||||
self.platform.vcpu(domain).await?;
|
||||
domain.phys.unmap_all()?;
|
||||
self.platform.gnttab_seed(domain).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn load_kernel_segment(&mut self, domain: &mut BootDomain) -> Result<DomainSegment> {
|
||||
let kernel_segment = domain
|
||||
.alloc_segment(
|
||||
domain.image_info.virt_kstart,
|
||||
domain.image_info.virt_kend - domain.image_info.virt_kstart,
|
||||
)
|
||||
.await?;
|
||||
let kernel_segment_ptr = kernel_segment.addr as *mut u8;
|
||||
let kernel_segment_slice =
|
||||
unsafe { slice::from_raw_parts_mut(kernel_segment_ptr, kernel_segment.size as usize) };
|
||||
self.image_loader
|
||||
.load(&domain.image_info, kernel_segment_slice)
|
||||
.await?;
|
||||
Ok(kernel_segment)
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
pub trait ArchBootSetup {
|
||||
fn page_size(&mut self) -> u64;
|
||||
fn page_shift(&mut self) -> u64;
|
||||
pub trait BootSetupPlatform: Clone {
|
||||
fn create_domain(&self, needs_passthrough: bool) -> CreateDomain;
|
||||
fn page_size(&self) -> u64;
|
||||
fn page_shift(&self) -> u64;
|
||||
fn needs_early_kernel(&self) -> bool;
|
||||
fn hvm(&self) -> bool;
|
||||
|
||||
fn needs_early_kernel(&mut self) -> bool;
|
||||
async fn initialize_early(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
|
||||
async fn alloc_p2m_segment(
|
||||
async fn initialize_memory(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
|
||||
async fn alloc_page_tables(&mut self, domain: &mut BootDomain)
|
||||
-> Result<Option<DomainSegment>>;
|
||||
|
||||
async fn alloc_p2m_segment(&mut self, domain: &mut BootDomain)
|
||||
-> Result<Option<DomainSegment>>;
|
||||
|
||||
async fn alloc_magic_pages(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
|
||||
async fn setup_page_tables(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
|
||||
async fn setup_shared_info(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
image_info: &BootImageInfo,
|
||||
) -> Result<Option<DomainSegment>>;
|
||||
|
||||
async fn alloc_page_tables(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
image_info: &BootImageInfo,
|
||||
) -> Result<Option<DomainSegment>>;
|
||||
|
||||
async fn setup_page_tables(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
state: &mut BootState,
|
||||
domain: &mut BootDomain,
|
||||
shared_info_frame: u64,
|
||||
) -> Result<()>;
|
||||
|
||||
async fn setup_start_info(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
state: &BootState,
|
||||
cmdline: &str,
|
||||
) -> Result<()>;
|
||||
|
||||
async fn setup_shared_info(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
domain: &mut BootDomain,
|
||||
shared_info_frame: u64,
|
||||
) -> Result<()>;
|
||||
|
||||
async fn meminit(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
total_pages: u64,
|
||||
kernel_segment: &Option<DomainSegment>,
|
||||
initrd_segment: &Option<DomainSegment>,
|
||||
) -> Result<()>;
|
||||
async fn bootlate(&mut self, setup: &mut BootSetup, state: &mut BootState) -> Result<()>;
|
||||
async fn vcpu(&mut self, setup: &mut BootSetup, state: &mut BootState) -> Result<()>;
|
||||
async fn bootlate(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
|
||||
async fn gnttab_seed(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
|
||||
async fn vcpu(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
|
||||
async fn setup_hypercall_page(&mut self, domain: &mut BootDomain) -> Result<()>;
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
pub trait BootImageLoader {
|
||||
async fn parse(&self, hvm: bool) -> Result<BootImageInfo>;
|
||||
async fn load(&self, image_info: &BootImageInfo, dst: &mut [u8]) -> Result<()>;
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct BootImageInfo {
|
||||
pub start: u64,
|
||||
pub virt_base: u64,
|
||||
pub virt_kstart: u64,
|
||||
pub virt_kend: u64,
|
||||
pub virt_hypercall: u64,
|
||||
pub virt_entry: u64,
|
||||
pub virt_p2m_base: u64,
|
||||
pub unmapped_initrd: bool,
|
||||
}
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
use crate::boot::{BootImageInfo, BootImageLoader, XEN_UNSET_ADDR};
|
||||
use crate::boot::{BootImageInfo, BootImageLoader};
|
||||
use crate::error::Result;
|
||||
use crate::sys::{
|
||||
XEN_ELFNOTE_ENTRY, XEN_ELFNOTE_HYPERCALL_PAGE, XEN_ELFNOTE_INIT_P2M, XEN_ELFNOTE_MOD_START_PFN,
|
||||
XEN_ELFNOTE_PADDR_OFFSET, XEN_ELFNOTE_TYPES, XEN_ELFNOTE_VIRT_BASE,
|
||||
XEN_ELFNOTE_PADDR_OFFSET, XEN_ELFNOTE_PHYS32_ENTRY, XEN_ELFNOTE_TYPES, XEN_ELFNOTE_VIRT_BASE,
|
||||
};
|
||||
use crate::Error;
|
||||
use elf::abi::{PF_R, PF_W, PF_X, PT_LOAD, SHT_NOTE};
|
||||
@ -128,8 +128,9 @@ struct ElfNoteValue {
|
||||
value: u64,
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
impl BootImageLoader for ElfImageLoader {
|
||||
fn parse(&self) -> Result<BootImageInfo> {
|
||||
async fn parse(&self, hvm: bool) -> Result<BootImageInfo> {
|
||||
let elf = ElfBytes::<AnyEndian>::minimal_parse(self.data.as_slice())?;
|
||||
let headers = elf.section_headers().ok_or(Error::ElfInvalidImage)?;
|
||||
let mut linux_notes: HashMap<u64, Vec<u8>> = HashMap::new();
|
||||
@ -200,6 +201,8 @@ impl BootImageLoader for ElfImageLoader {
|
||||
.ok_or(Error::ElfInvalidImage)?
|
||||
.value;
|
||||
|
||||
let phys32_entry = xen_notes.get(&XEN_ELFNOTE_PHYS32_ENTRY).map(|x| x.value);
|
||||
|
||||
let mut start: u64 = u64::MAX;
|
||||
let mut end: u64 = 0;
|
||||
|
||||
@ -220,15 +223,21 @@ impl BootImageLoader for ElfImageLoader {
|
||||
}
|
||||
}
|
||||
|
||||
if paddr_offset != XEN_UNSET_ADDR && virt_base == XEN_UNSET_ADDR {
|
||||
if paddr_offset != u64::MAX && virt_base == u64::MAX {
|
||||
return Err(Error::ElfInvalidImage);
|
||||
}
|
||||
|
||||
let virt_offset = virt_base - paddr_offset;
|
||||
let virt_kstart = start + virt_offset;
|
||||
let virt_kend = end + virt_offset;
|
||||
let virt_entry = entry;
|
||||
|
||||
let mut virt_entry = entry;
|
||||
if hvm {
|
||||
if let Some(entry) = phys32_entry {
|
||||
virt_entry = entry;
|
||||
} else {
|
||||
virt_entry = elf.ehdr.e_entry;
|
||||
}
|
||||
}
|
||||
let image_info = BootImageInfo {
|
||||
start,
|
||||
virt_base,
|
||||
@ -242,7 +251,7 @@ impl BootImageLoader for ElfImageLoader {
|
||||
Ok(image_info)
|
||||
}
|
||||
|
||||
fn load(&self, image_info: &BootImageInfo, dst: &mut [u8]) -> Result<()> {
|
||||
async fn load(&self, image_info: &BootImageInfo, dst: &mut [u8]) -> Result<()> {
|
||||
let elf = ElfBytes::<AnyEndian>::minimal_parse(self.data.as_slice())?;
|
||||
let segments = elf.segments().ok_or(Error::ElfInvalidImage)?;
|
||||
|
||||
|
||||
@ -4,22 +4,10 @@ pub mod error;
|
||||
pub mod mem;
|
||||
pub mod sys;
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub mod x86;
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
use crate::x86::X86BootSetup;
|
||||
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub mod arm64;
|
||||
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
use crate::arm64::Arm64BootSetup;
|
||||
|
||||
use crate::boot::{ArchBootSetup, BootSetup};
|
||||
use crate::boot::{BootDomain, BootSetup};
|
||||
use crate::elfloader::ElfImageLoader;
|
||||
use crate::error::{Error, Result};
|
||||
use boot::BootState;
|
||||
use boot::BootSetupPlatform;
|
||||
use indexmap::IndexMap;
|
||||
use log::{debug, trace, warn};
|
||||
use pci::{PciBdf, XenPciBackend};
|
||||
@ -28,12 +16,10 @@ use tokio::time::timeout;
|
||||
|
||||
use std::path::PathBuf;
|
||||
use std::str::FromStr;
|
||||
use std::sync::Arc;
|
||||
use std::time::Duration;
|
||||
use uuid::Uuid;
|
||||
use xencall::sys::{
|
||||
CreateDomain, DOMCTL_DEV_RDM_RELAXED, XEN_DOMCTL_CDF_HAP, XEN_DOMCTL_CDF_HVM_GUEST,
|
||||
XEN_DOMCTL_CDF_IOMMU,
|
||||
};
|
||||
use xencall::sys::{CreateDomain, DOMCTL_DEV_RDM_RELAXED};
|
||||
use xencall::XenCall;
|
||||
use xenstore::{
|
||||
XsPermission, XsdClient, XsdInterface, XsdTransaction, XS_PERM_NONE, XS_PERM_READ,
|
||||
@ -42,10 +28,15 @@ use xenstore::{
|
||||
|
||||
pub mod pci;
|
||||
|
||||
pub mod unsupported;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub mod x86pv;
|
||||
|
||||
#[derive(Clone)]
|
||||
pub struct XenClient {
|
||||
pub struct XenClient<P: BootSetupPlatform> {
|
||||
pub store: XsdClient,
|
||||
call: XenCall,
|
||||
platform: Arc<P>,
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
@ -124,7 +115,7 @@ pub struct DomainConfig {
|
||||
pub initrd: Vec<u8>,
|
||||
pub cmdline: String,
|
||||
pub disks: Vec<DomainDisk>,
|
||||
pub use_console_backend: Option<String>,
|
||||
pub swap_console_backend: Option<String>,
|
||||
pub channels: Vec<DomainChannel>,
|
||||
pub vifs: Vec<DomainNetworkInterface>,
|
||||
pub filesystems: Vec<DomainFilesystem>,
|
||||
@ -147,25 +138,20 @@ pub struct CreatedDomain {
|
||||
}
|
||||
|
||||
#[allow(clippy::too_many_arguments)]
|
||||
impl XenClient {
|
||||
pub async fn open(current_domid: u32) -> Result<XenClient> {
|
||||
impl<P: BootSetupPlatform> XenClient<P> {
|
||||
pub async fn new(current_domid: u32, platform: P) -> Result<XenClient<P>> {
|
||||
let store = XsdClient::open().await?;
|
||||
let call = XenCall::open(current_domid)?;
|
||||
Ok(XenClient { store, call })
|
||||
Ok(XenClient {
|
||||
store,
|
||||
call,
|
||||
platform: Arc::new(platform),
|
||||
})
|
||||
}
|
||||
|
||||
pub async fn create(&self, config: &DomainConfig) -> Result<CreatedDomain> {
|
||||
let mut domain = CreateDomain {
|
||||
..Default::default()
|
||||
};
|
||||
let mut domain = self.platform.create_domain(!config.pcis.is_empty());
|
||||
domain.max_vcpus = config.max_vcpus;
|
||||
|
||||
if cfg!(target_arch = "aarch64") {
|
||||
domain.flags = XEN_DOMCTL_CDF_HVM_GUEST | XEN_DOMCTL_CDF_HAP;
|
||||
} else {
|
||||
domain.flags = XEN_DOMCTL_CDF_IOMMU;
|
||||
}
|
||||
|
||||
let domid = self.call.create_domain(domain).await?;
|
||||
match self.init(domid, &domain, config).await {
|
||||
Ok(created) => Ok(created),
|
||||
@ -181,18 +167,13 @@ impl XenClient {
|
||||
async fn init(
|
||||
&self,
|
||||
domid: u32,
|
||||
domain: &CreateDomain,
|
||||
created: &CreateDomain,
|
||||
config: &DomainConfig,
|
||||
) -> Result<CreatedDomain> {
|
||||
trace!(
|
||||
"XenClient init domid={} domain={:?} config={:?}",
|
||||
domid,
|
||||
domain,
|
||||
config
|
||||
);
|
||||
trace!("XenClient init domid={} domain={:?}", domid, created,);
|
||||
let backend_dom_path = self.store.get_domain_path(0).await?;
|
||||
let dom_path = self.store.get_domain_path(domid).await?;
|
||||
let uuid_string = Uuid::from_bytes(domain.handle).to_string();
|
||||
let uuid_string = Uuid::from_bytes(created.handle).to_string();
|
||||
let vm_path = format!("/vm/{}", uuid_string);
|
||||
|
||||
let ro_perm = &[
|
||||
@ -273,7 +254,7 @@ impl XenClient {
|
||||
|
||||
tx.write_string(
|
||||
format!("{}/uuid", vm_path).as_str(),
|
||||
&Uuid::from_bytes(domain.handle).to_string(),
|
||||
&Uuid::from_bytes(created.handle).to_string(),
|
||||
)
|
||||
.await?;
|
||||
tx.write_string(format!("{}/name", dom_path).as_str(), &config.name)
|
||||
@ -295,34 +276,23 @@ impl XenClient {
|
||||
}
|
||||
|
||||
self.call.set_max_vcpus(domid, config.max_vcpus).await?;
|
||||
self.call.set_max_mem(domid, config.mem_mb * 1024).await?;
|
||||
let image_loader = ElfImageLoader::load_file_kernel(&config.kernel)?;
|
||||
|
||||
let xenstore_evtchn: u32;
|
||||
let xenstore_mfn: u64;
|
||||
|
||||
let p2m: Vec<u64>;
|
||||
let mut state: BootState;
|
||||
self.call
|
||||
.set_max_mem(domid, (config.mem_mb * 1024) + 2048)
|
||||
.await?;
|
||||
let mut domain: BootDomain;
|
||||
{
|
||||
let mut boot = BootSetup::new(&self.call, domid);
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
let mut arch = Box::new(X86BootSetup::new()) as Box<dyn ArchBootSetup + Send + Sync>;
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
let mut arch = Box::new(Arm64BootSetup::new()) as Box<dyn ArchBootSetup + Send + Sync>;
|
||||
state = boot
|
||||
let loader = ElfImageLoader::load_file_kernel(&config.kernel)?;
|
||||
let platform = (*self.platform).clone();
|
||||
let mut boot = BootSetup::new(self.call.clone(), domid, platform, loader, None);
|
||||
domain = boot
|
||||
.initialize(
|
||||
&mut arch,
|
||||
&image_loader,
|
||||
&config.initrd,
|
||||
config.max_vcpus,
|
||||
config.mem_mb,
|
||||
1,
|
||||
config.max_vcpus,
|
||||
&config.cmdline,
|
||||
)
|
||||
.await?;
|
||||
boot.boot(&mut arch, &mut state, &config.cmdline).await?;
|
||||
xenstore_evtchn = state.store_evtchn;
|
||||
xenstore_mfn = boot.phys.p2m[state.xenstore_segment.pfn as usize];
|
||||
p2m = boot.phys.p2m;
|
||||
boot.boot(&mut domain).await?;
|
||||
}
|
||||
|
||||
{
|
||||
@ -349,14 +319,16 @@ impl XenClient {
|
||||
.await?;
|
||||
tx.write_string(format!("{}/domid", dom_path).as_str(), &domid.to_string())
|
||||
.await?;
|
||||
tx.write_string(format!("{}/type", dom_path).as_str(), "PV")
|
||||
.await?;
|
||||
tx.write_string(
|
||||
format!("{}/store/port", dom_path).as_str(),
|
||||
&xenstore_evtchn.to_string(),
|
||||
&domain.store_evtchn.to_string(),
|
||||
)
|
||||
.await?;
|
||||
tx.write_string(
|
||||
format!("{}/store/ring-ref", dom_path).as_str(),
|
||||
&xenstore_mfn.to_string(),
|
||||
&domain.store_mfn.to_string(),
|
||||
)
|
||||
.await?;
|
||||
for i in 0..config.max_vcpus {
|
||||
@ -371,7 +343,7 @@ impl XenClient {
|
||||
}
|
||||
if !self
|
||||
.store
|
||||
.introduce_domain(domid, xenstore_mfn, xenstore_evtchn)
|
||||
.introduce_domain(domid, domain.store_mfn, domain.store_evtchn)
|
||||
.await?
|
||||
{
|
||||
return Err(Error::IntroduceDomainFailed);
|
||||
@ -380,16 +352,15 @@ impl XenClient {
|
||||
let tx = self.store.transaction().await?;
|
||||
self.console_device_add(
|
||||
&tx,
|
||||
&mut domain,
|
||||
&DomainChannel {
|
||||
typ: config
|
||||
.use_console_backend
|
||||
.swap_console_backend
|
||||
.clone()
|
||||
.unwrap_or("xenconsoled".to_string())
|
||||
.to_string(),
|
||||
initialized: true,
|
||||
},
|
||||
&p2m,
|
||||
&state,
|
||||
&dom_path,
|
||||
&backend_dom_path,
|
||||
config.backend_domid,
|
||||
@ -403,9 +374,8 @@ impl XenClient {
|
||||
let (Some(ring_ref), Some(evtchn)) = self
|
||||
.console_device_add(
|
||||
&tx,
|
||||
&mut domain,
|
||||
channel,
|
||||
&p2m,
|
||||
&state,
|
||||
&dom_path,
|
||||
&backend_dom_path,
|
||||
config.backend_domid,
|
||||
@ -548,18 +518,17 @@ impl XenClient {
|
||||
async fn console_device_add(
|
||||
&self,
|
||||
tx: &XsdTransaction,
|
||||
domain: &mut BootDomain,
|
||||
channel: &DomainChannel,
|
||||
p2m: &[u64],
|
||||
state: &BootState,
|
||||
dom_path: &str,
|
||||
backend_dom_path: &str,
|
||||
backend_domid: u32,
|
||||
domid: u32,
|
||||
index: usize,
|
||||
) -> Result<(Option<u64>, Option<u32>)> {
|
||||
let console = state.consoles.get(index);
|
||||
let console = domain.consoles.get(index);
|
||||
let port = console.map(|x| x.0);
|
||||
let ring = console.map(|x| p2m[x.1.pfn as usize]);
|
||||
let ring = console.map(|x| x.1);
|
||||
|
||||
let mut backend_entries = vec![
|
||||
("frontend-id", domid.to_string()),
|
||||
|
||||
@ -1,36 +1,34 @@
|
||||
use crate::error::Result;
|
||||
use crate::sys::{XEN_PAGE_SHIFT, XEN_PAGE_SIZE};
|
||||
use crate::sys::XEN_PAGE_SHIFT;
|
||||
use crate::Error;
|
||||
use libc::munmap;
|
||||
use log::debug;
|
||||
use nix::errno::Errno;
|
||||
use std::ffi::c_void;
|
||||
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub(crate) use crate::arm64::ARM_PAGE_SHIFT as ARCH_PAGE_SHIFT;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub(crate) use crate::x86::X86_PAGE_SHIFT as ARCH_PAGE_SHIFT;
|
||||
use std::slice;
|
||||
|
||||
use xencall::sys::MmapEntry;
|
||||
use xencall::XenCall;
|
||||
|
||||
#[derive(Debug)]
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct PhysicalPage {
|
||||
pfn: u64,
|
||||
ptr: u64,
|
||||
pub ptr: u64,
|
||||
count: u64,
|
||||
}
|
||||
|
||||
pub struct PhysicalPages<'a> {
|
||||
pub struct PhysicalPages {
|
||||
page_shift: u64,
|
||||
domid: u32,
|
||||
pub(crate) p2m: Vec<u64>,
|
||||
call: &'a XenCall,
|
||||
pub p2m: Vec<u64>,
|
||||
call: XenCall,
|
||||
pages: Vec<PhysicalPage>,
|
||||
}
|
||||
|
||||
impl PhysicalPages<'_> {
|
||||
pub fn new(call: &XenCall, domid: u32) -> PhysicalPages {
|
||||
impl PhysicalPages {
|
||||
pub fn new(call: XenCall, domid: u32, page_shift: u64) -> PhysicalPages {
|
||||
PhysicalPages {
|
||||
page_shift,
|
||||
domid,
|
||||
p2m: Vec::new(),
|
||||
call,
|
||||
@ -70,7 +68,7 @@ impl PhysicalPages<'_> {
|
||||
}
|
||||
}
|
||||
|
||||
return Ok(page.ptr + ((pfn - page.pfn) << ARCH_PAGE_SHIFT));
|
||||
return Ok(page.ptr + ((pfn - page.pfn) << self.page_shift));
|
||||
}
|
||||
|
||||
if count == 0 {
|
||||
@ -83,7 +81,11 @@ impl PhysicalPages<'_> {
|
||||
async fn pfn_alloc(&mut self, pfn: u64, count: u64) -> Result<u64> {
|
||||
let mut entries = vec![MmapEntry::default(); count as usize];
|
||||
for (i, entry) in entries.iter_mut().enumerate() {
|
||||
entry.mfn = self.p2m[pfn as usize + i];
|
||||
if !self.p2m.is_empty() {
|
||||
entry.mfn = self.p2m[pfn as usize + i];
|
||||
} else {
|
||||
entry.mfn = pfn + i as u64;
|
||||
}
|
||||
}
|
||||
let chunk_size = 1 << XEN_PAGE_SHIFT;
|
||||
let num_per_entry = chunk_size >> XEN_PAGE_SHIFT;
|
||||
@ -123,10 +125,19 @@ impl PhysicalPages<'_> {
|
||||
}
|
||||
|
||||
pub async fn map_foreign_pages(&mut self, mfn: u64, size: u64) -> Result<u64> {
|
||||
let num = ((size + XEN_PAGE_SIZE - 1) >> XEN_PAGE_SHIFT) as usize;
|
||||
let count = (size >> XEN_PAGE_SHIFT) as usize;
|
||||
let mut entries = vec![MmapEntry::default(); count];
|
||||
for (i, entry) in entries.iter_mut().enumerate() {
|
||||
entry.mfn = mfn + i as u64;
|
||||
}
|
||||
let chunk_size = 1 << XEN_PAGE_SHIFT;
|
||||
let num_per_entry = chunk_size >> XEN_PAGE_SHIFT;
|
||||
let num = num_per_entry * count;
|
||||
let mut pfns = vec![u64::MAX; num];
|
||||
for (i, item) in pfns.iter_mut().enumerate().take(num) {
|
||||
*item = mfn + i as u64;
|
||||
for i in 0..count {
|
||||
for j in 0..num_per_entry {
|
||||
pfns[i * num_per_entry + j] = entries[i].mfn + j as u64;
|
||||
}
|
||||
}
|
||||
|
||||
let actual_mmap_len = (num as u64) << XEN_PAGE_SHIFT;
|
||||
@ -144,9 +155,9 @@ impl PhysicalPages<'_> {
|
||||
return Err(Error::MmapFailed);
|
||||
}
|
||||
let page = PhysicalPage {
|
||||
pfn: u64::MAX,
|
||||
pfn: mfn,
|
||||
ptr: addr,
|
||||
count: num as u64,
|
||||
count: count as u64,
|
||||
};
|
||||
debug!(
|
||||
"alloc_mfn {:#x}+{:#x} at {:#x}",
|
||||
@ -156,12 +167,21 @@ impl PhysicalPages<'_> {
|
||||
Ok(addr)
|
||||
}
|
||||
|
||||
pub async fn clear_pages(&mut self, pfn: u64, count: u64) -> Result<()> {
|
||||
let ptr = self.pfn_to_ptr(pfn, count).await?;
|
||||
let slice = unsafe {
|
||||
slice::from_raw_parts_mut(ptr as *mut u8, (count * (1 << self.page_shift)) as usize)
|
||||
};
|
||||
slice.fill(0);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn unmap_all(&mut self) -> Result<()> {
|
||||
for page in &self.pages {
|
||||
unsafe {
|
||||
let err = munmap(
|
||||
page.ptr as *mut c_void,
|
||||
(page.count << ARCH_PAGE_SHIFT) as usize,
|
||||
(page.count << self.page_shift) as usize,
|
||||
);
|
||||
if err != 0 {
|
||||
return Err(Error::UnmapFailed(Errno::from_raw(err)));
|
||||
@ -182,11 +202,11 @@ impl PhysicalPages<'_> {
|
||||
unsafe {
|
||||
let err = munmap(
|
||||
page.ptr as *mut c_void,
|
||||
(page.count << ARCH_PAGE_SHIFT) as usize,
|
||||
(page.count << self.page_shift) as usize,
|
||||
);
|
||||
debug!(
|
||||
"unmapped {:#x} foreign bytes at {:#x}",
|
||||
(page.count << ARCH_PAGE_SHIFT) as usize,
|
||||
(page.count << self.page_shift) as usize,
|
||||
page.ptr
|
||||
);
|
||||
if err != 0 {
|
||||
|
||||
@ -119,6 +119,8 @@ pub const XEN_PAGE_MASK: u64 = !(XEN_PAGE_SIZE - 1);
|
||||
pub const SUPERPAGE_BATCH_SIZE: u64 = 512;
|
||||
pub const SUPERPAGE_2MB_SHIFT: u64 = 9;
|
||||
pub const SUPERPAGE_2MB_NR_PFNS: u64 = 1u64 << SUPERPAGE_2MB_SHIFT;
|
||||
pub const SUPERPAGE_1GB_SHIFT: u64 = 18;
|
||||
pub const SUPERPAGE_1GB_NR_PFNS: u64 = 1u64 << SUPERPAGE_1GB_SHIFT;
|
||||
pub const VGCF_IN_KERNEL: u64 = 1 << 2;
|
||||
pub const VGCF_ONLINE: u64 = 1 << 5;
|
||||
|
||||
@ -128,3 +130,18 @@ pub struct GrantEntry {
|
||||
pub domid: u16,
|
||||
pub frame: u32,
|
||||
}
|
||||
|
||||
pub const XEN_HVM_START_MAGIC_VALUE: u32 = 0x336ec578;
|
||||
|
||||
pub const HVM_PARAM_STORE_PFN: u32 = 1;
|
||||
pub const HVM_PARAM_STORE_EVTCHN: u32 = 2;
|
||||
pub const HVM_PARAM_IOREQ_PFN: u32 = 5;
|
||||
pub const HVM_PARAM_BUFIOREQ_PFN: u32 = 6;
|
||||
pub const HVM_PARAM_CONSOLE_PFN: u32 = 17;
|
||||
pub const HVM_PARAM_CONSOLE_EVTCHN: u32 = 18;
|
||||
pub const HVM_PARAM_PAGING_RING_PFN: u32 = 27;
|
||||
pub const HVM_PARAM_MONITOR_RING_PFN: u32 = 28;
|
||||
pub const HVM_PARAM_SHARING_RING_PFN: u32 = 29;
|
||||
pub const HVM_PARAM_TIMER_MODE: u32 = 10;
|
||||
pub const HVM_PARAM_ALTP2M: u32 = 35;
|
||||
pub const HVM_PARAM_IDENT_PT: u32 = 12;
|
||||
|
||||
86
crates/xen/xenclient/src/unsupported.rs
Normal file
86
crates/xen/xenclient/src/unsupported.rs
Normal file
@ -0,0 +1,86 @@
|
||||
use xencall::sys::CreateDomain;
|
||||
|
||||
use crate::{
|
||||
boot::{BootDomain, BootSetupPlatform, DomainSegment},
|
||||
error::Result,
|
||||
};
|
||||
|
||||
#[derive(Default, Clone)]
|
||||
pub struct UnsupportedPlatform;
|
||||
|
||||
impl UnsupportedPlatform {
|
||||
pub fn new() -> Self {
|
||||
Self {}
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
impl BootSetupPlatform for UnsupportedPlatform {
|
||||
fn create_domain(&self, _: bool) -> CreateDomain {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
fn page_size(&self) -> u64 {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
fn page_shift(&self) -> u64 {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
fn needs_early_kernel(&self) -> bool {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
fn hvm(&self) -> bool {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn initialize_early(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn initialize_memory(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn alloc_p2m_segment(&mut self, _: &mut BootDomain) -> Result<Option<DomainSegment>> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn alloc_page_tables(&mut self, _: &mut BootDomain) -> Result<Option<DomainSegment>> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn setup_page_tables(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn setup_hypercall_page(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn alloc_magic_pages(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn setup_shared_info(&mut self, _: &mut BootDomain, _: u64) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn setup_start_info(&mut self, _: &mut BootDomain, _: u64) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn bootlate(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn vcpu(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
|
||||
async fn gnttab_seed(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
panic!("unsupported platform")
|
||||
}
|
||||
}
|
||||
@ -1,18 +1,25 @@
|
||||
use crate::boot::{ArchBootSetup, BootImageInfo, BootSetup, BootState, DomainSegment};
|
||||
use crate::error::Result;
|
||||
use crate::sys::{
|
||||
SUPERPAGE_2MB_NR_PFNS, SUPERPAGE_2MB_SHIFT, SUPERPAGE_BATCH_SIZE, VGCF_IN_KERNEL, VGCF_ONLINE,
|
||||
XEN_PAGE_SHIFT,
|
||||
use std::{
|
||||
mem::size_of,
|
||||
os::raw::{c_char, c_void},
|
||||
slice,
|
||||
};
|
||||
use crate::Error;
|
||||
use libc::c_char;
|
||||
|
||||
use libc::munmap;
|
||||
use log::{debug, trace};
|
||||
use nix::errno::Errno;
|
||||
use slice_copy::copy;
|
||||
use std::cmp::{max, min};
|
||||
use std::mem::size_of;
|
||||
use std::slice;
|
||||
use xencall::sys::{
|
||||
E820Entry, VcpuGuestContext, E820_MAX, E820_RAM, E820_UNUSABLE, MMUEXT_PIN_L4_TABLE,
|
||||
x8664VcpuGuestContext, CreateDomain, E820Entry, VcpuGuestContextAny, E820_MAX, E820_RAM,
|
||||
E820_UNUSABLE, MMUEXT_PIN_L4_TABLE, XEN_DOMCTL_CDF_IOMMU,
|
||||
};
|
||||
|
||||
use crate::{
|
||||
boot::{BootDomain, BootSetupPlatform, DomainSegment},
|
||||
error::{Error, Result},
|
||||
sys::{
|
||||
GrantEntry, SUPERPAGE_2MB_NR_PFNS, SUPERPAGE_2MB_SHIFT, SUPERPAGE_BATCH_SIZE,
|
||||
VGCF_IN_KERNEL, VGCF_ONLINE, XEN_PAGE_SHIFT,
|
||||
},
|
||||
};
|
||||
|
||||
pub const X86_PAGE_SHIFT: u64 = 12;
|
||||
@ -127,10 +134,6 @@ pub struct SharedInfo {
|
||||
pub p2m_generation: u64,
|
||||
}
|
||||
|
||||
pub struct X86BootSetup {
|
||||
table: PageTable,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct VmemRange {
|
||||
start: u64,
|
||||
@ -139,16 +142,20 @@ struct VmemRange {
|
||||
_nid: u32,
|
||||
}
|
||||
|
||||
impl Default for X86BootSetup {
|
||||
fn default() -> Self {
|
||||
Self::new()
|
||||
}
|
||||
#[derive(Default, Clone)]
|
||||
pub struct X86PvPlatform {
|
||||
table: PageTable,
|
||||
p2m_segment: Option<DomainSegment>,
|
||||
page_table_segment: Option<DomainSegment>,
|
||||
start_info_segment: Option<DomainSegment>,
|
||||
boot_stack_segment: Option<DomainSegment>,
|
||||
xenstore_segment: Option<DomainSegment>,
|
||||
}
|
||||
|
||||
impl X86BootSetup {
|
||||
pub fn new() -> X86BootSetup {
|
||||
X86BootSetup {
|
||||
table: PageTable::default(),
|
||||
impl X86PvPlatform {
|
||||
pub fn new() -> Self {
|
||||
Self {
|
||||
..Default::default()
|
||||
}
|
||||
}
|
||||
|
||||
@ -159,22 +166,22 @@ impl X86BootSetup {
|
||||
const PAGE_DIRTY: u64 = 0x040;
|
||||
fn get_pg_prot(&mut self, l: usize, pfn: u64) -> u64 {
|
||||
let prot = [
|
||||
X86BootSetup::PAGE_PRESENT | X86BootSetup::PAGE_RW | X86BootSetup::PAGE_ACCESSED,
|
||||
X86BootSetup::PAGE_PRESENT
|
||||
| X86BootSetup::PAGE_RW
|
||||
| X86BootSetup::PAGE_ACCESSED
|
||||
| X86BootSetup::PAGE_DIRTY
|
||||
| X86BootSetup::PAGE_USER,
|
||||
X86BootSetup::PAGE_PRESENT
|
||||
| X86BootSetup::PAGE_RW
|
||||
| X86BootSetup::PAGE_ACCESSED
|
||||
| X86BootSetup::PAGE_DIRTY
|
||||
| X86BootSetup::PAGE_USER,
|
||||
X86BootSetup::PAGE_PRESENT
|
||||
| X86BootSetup::PAGE_RW
|
||||
| X86BootSetup::PAGE_ACCESSED
|
||||
| X86BootSetup::PAGE_DIRTY
|
||||
| X86BootSetup::PAGE_USER,
|
||||
X86PvPlatform::PAGE_PRESENT | X86PvPlatform::PAGE_RW | X86PvPlatform::PAGE_ACCESSED,
|
||||
X86PvPlatform::PAGE_PRESENT
|
||||
| X86PvPlatform::PAGE_RW
|
||||
| X86PvPlatform::PAGE_ACCESSED
|
||||
| X86PvPlatform::PAGE_DIRTY
|
||||
| X86PvPlatform::PAGE_USER,
|
||||
X86PvPlatform::PAGE_PRESENT
|
||||
| X86PvPlatform::PAGE_RW
|
||||
| X86PvPlatform::PAGE_ACCESSED
|
||||
| X86PvPlatform::PAGE_DIRTY
|
||||
| X86PvPlatform::PAGE_USER,
|
||||
X86PvPlatform::PAGE_PRESENT
|
||||
| X86PvPlatform::PAGE_RW
|
||||
| X86PvPlatform::PAGE_ACCESSED
|
||||
| X86PvPlatform::PAGE_DIRTY
|
||||
| X86PvPlatform::PAGE_USER,
|
||||
];
|
||||
|
||||
let prot = prot[l];
|
||||
@ -187,7 +194,7 @@ impl X86BootSetup {
|
||||
let pfn_s = map.levels[(X86_PGTABLE_LEVELS - 1) as usize].pfn;
|
||||
let pfn_e = map.area.pgtables as u64 + pfn_s;
|
||||
if pfn >= pfn_s && pfn < pfn_e {
|
||||
return prot & !X86BootSetup::PAGE_RW;
|
||||
return prot & !X86PvPlatform::PAGE_RW;
|
||||
}
|
||||
}
|
||||
prot
|
||||
@ -195,7 +202,7 @@ impl X86BootSetup {
|
||||
|
||||
fn count_page_tables(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
domain: &mut BootDomain,
|
||||
from: u64,
|
||||
to: u64,
|
||||
pfn: u64,
|
||||
@ -208,7 +215,7 @@ impl X86BootSetup {
|
||||
let m = self.table.mappings_count;
|
||||
|
||||
let pfn_end = pfn + ((to - from) >> X86_PAGE_SHIFT);
|
||||
if pfn_end >= setup.phys.p2m_size() {
|
||||
if pfn_end >= domain.phys.p2m_size() {
|
||||
return Err(Error::MemorySetupFailed("pfn_end greater than p2m size"));
|
||||
}
|
||||
|
||||
@ -222,7 +229,7 @@ impl X86BootSetup {
|
||||
map.area.to = to & X86_VIRT_MASK;
|
||||
|
||||
for l in (0usize..X86_PGTABLE_LEVELS as usize).rev() {
|
||||
map.levels[l].pfn = setup.pfn_alloc_end + map.area.pgtables as u64;
|
||||
map.levels[l].pfn = domain.pfn_alloc_end + map.area.pgtables as u64;
|
||||
if l as u64 == X86_PGTABLE_LEVELS - 1 {
|
||||
if self.table.mappings_count == 0 {
|
||||
map.levels[l].from = 0;
|
||||
@ -234,7 +241,7 @@ impl X86BootSetup {
|
||||
}
|
||||
|
||||
let bits = X86_PAGE_SHIFT + (l + 1) as u64 * X86_PGTABLE_LEVEL_SHIFT;
|
||||
let mask = BootSetup::bits_to_mask(bits);
|
||||
let mask = BootDomain::bits_to_mask(bits);
|
||||
map.levels[l].from = map.area.from & !mask;
|
||||
map.levels[l].to = map.area.to | mask;
|
||||
|
||||
@ -426,229 +433,48 @@ impl X86BootSetup {
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
impl ArchBootSetup for X86BootSetup {
|
||||
fn page_size(&mut self) -> u64 {
|
||||
impl BootSetupPlatform for X86PvPlatform {
|
||||
fn create_domain(&self, needs_passthrough: bool) -> CreateDomain {
|
||||
CreateDomain {
|
||||
flags: if needs_passthrough {
|
||||
XEN_DOMCTL_CDF_IOMMU
|
||||
} else {
|
||||
0
|
||||
},
|
||||
..Default::default()
|
||||
}
|
||||
}
|
||||
|
||||
fn page_size(&self) -> u64 {
|
||||
X86_PAGE_SIZE
|
||||
}
|
||||
|
||||
fn page_shift(&mut self) -> u64 {
|
||||
fn page_shift(&self) -> u64 {
|
||||
X86_PAGE_SHIFT
|
||||
}
|
||||
|
||||
fn needs_early_kernel(&mut self) -> bool {
|
||||
fn needs_early_kernel(&self) -> bool {
|
||||
false
|
||||
}
|
||||
|
||||
async fn alloc_p2m_segment(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
image_info: &BootImageInfo,
|
||||
) -> Result<Option<DomainSegment>> {
|
||||
let mut p2m_alloc_size =
|
||||
((setup.phys.p2m_size() * 8) + X86_PAGE_SIZE - 1) & !(X86_PAGE_SIZE - 1);
|
||||
let from = image_info.virt_p2m_base;
|
||||
let to = from + p2m_alloc_size - 1;
|
||||
let m = self.count_page_tables(setup, from, to, setup.pfn_alloc_end)?;
|
||||
fn hvm(&self) -> bool {
|
||||
false
|
||||
}
|
||||
|
||||
let pgtables: usize;
|
||||
{
|
||||
let map = &mut self.table.mappings[m];
|
||||
map.area.pfn = setup.pfn_alloc_end;
|
||||
for lvl_idx in 0..4 {
|
||||
map.levels[lvl_idx].pfn += p2m_alloc_size >> X86_PAGE_SHIFT;
|
||||
}
|
||||
pgtables = map.area.pgtables;
|
||||
}
|
||||
self.table.mappings_count += 1;
|
||||
p2m_alloc_size += (pgtables << X86_PAGE_SHIFT) as u64;
|
||||
let p2m_segment = setup
|
||||
.alloc_segment(self.page_size(), 0, p2m_alloc_size)
|
||||
async fn initialize_early(&mut self, _: &mut BootDomain) -> Result<()> {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn initialize_memory(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
domain.call.set_address_size(domain.domid, 64).await?;
|
||||
domain
|
||||
.call
|
||||
.claim_pages(domain.domid, domain.total_pages)
|
||||
.await?;
|
||||
Ok(Some(p2m_segment))
|
||||
}
|
||||
|
||||
async fn alloc_page_tables(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
image_info: &BootImageInfo,
|
||||
) -> Result<Option<DomainSegment>> {
|
||||
let mut extra_pages = 1;
|
||||
extra_pages += (512 * 1024) / X86_PAGE_SIZE;
|
||||
let mut pages = extra_pages;
|
||||
|
||||
let mut try_virt_end: u64;
|
||||
let mut m: usize;
|
||||
loop {
|
||||
try_virt_end = BootSetup::round_up(
|
||||
setup.virt_alloc_end + pages * X86_PAGE_SIZE,
|
||||
BootSetup::bits_to_mask(22),
|
||||
);
|
||||
m = self.count_page_tables(setup, image_info.virt_base, try_virt_end, 0)?;
|
||||
pages = self.table.mappings[m].area.pgtables as u64 + extra_pages;
|
||||
if setup.virt_alloc_end + pages * X86_PAGE_SIZE <= try_virt_end + 1 {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
self.table.mappings[m].area.pfn = 0;
|
||||
self.table.mappings_count += 1;
|
||||
setup.virt_pgtab_end = try_virt_end + 1;
|
||||
let size = self.table.mappings[m].area.pgtables as u64 * X86_PAGE_SIZE;
|
||||
let segment = setup.alloc_segment(self.page_size(), 0, size).await?;
|
||||
debug!(
|
||||
"alloc_page_tables table={:?} segment={:?}",
|
||||
self.table, segment
|
||||
);
|
||||
Ok(Some(segment))
|
||||
}
|
||||
|
||||
async fn setup_page_tables(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
state: &mut BootState,
|
||||
) -> Result<()> {
|
||||
let p2m_segment = state
|
||||
.p2m_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("p2m_segment missing"))?;
|
||||
let p2m_guest = unsafe {
|
||||
slice::from_raw_parts_mut(p2m_segment.addr as *mut u64, setup.phys.p2m_size() as usize)
|
||||
};
|
||||
copy(p2m_guest, &setup.phys.p2m);
|
||||
|
||||
for l in (0usize..X86_PGTABLE_LEVELS as usize).rev() {
|
||||
for m1 in 0usize..self.table.mappings_count {
|
||||
let map1 = &self.table.mappings[m1];
|
||||
let from = map1.levels[l].from;
|
||||
let to = map1.levels[l].to;
|
||||
let pg_ptr = setup.phys.pfn_to_ptr(map1.levels[l].pfn, 0).await? as *mut u64;
|
||||
for m2 in 0usize..self.table.mappings_count {
|
||||
let map2 = &self.table.mappings[m2];
|
||||
let lvl = if l > 0 {
|
||||
&map2.levels[l - 1]
|
||||
} else {
|
||||
&map2.area
|
||||
};
|
||||
|
||||
if l > 0 && lvl.pgtables == 0 {
|
||||
continue;
|
||||
}
|
||||
|
||||
if lvl.from >= to || lvl.to <= from {
|
||||
continue;
|
||||
}
|
||||
|
||||
let p_s = (max(from, lvl.from) - from)
|
||||
>> (X86_PAGE_SHIFT + l as u64 * X86_PGTABLE_LEVEL_SHIFT);
|
||||
let p_e = (min(to, lvl.to) - from)
|
||||
>> (X86_PAGE_SHIFT + l as u64 * X86_PGTABLE_LEVEL_SHIFT);
|
||||
let rhs = X86_PAGE_SHIFT as usize + l * X86_PGTABLE_LEVEL_SHIFT as usize;
|
||||
let mut pfn = ((max(from, lvl.from) - lvl.from) >> rhs) + lvl.pfn;
|
||||
|
||||
debug!(
|
||||
"setup_page_tables lvl={} map_1={} map_2={} pfn={:#x} p_s={:#x} p_e={:#x}",
|
||||
l, m1, m2, pfn, p_s, p_e
|
||||
);
|
||||
|
||||
let pg = unsafe { slice::from_raw_parts_mut(pg_ptr, (p_e + 1) as usize) };
|
||||
for p in p_s..p_e + 1 {
|
||||
let prot = self.get_pg_prot(l, pfn);
|
||||
let pfn_paddr = setup.phys.p2m[pfn as usize] << X86_PAGE_SHIFT;
|
||||
let value = pfn_paddr | prot;
|
||||
pg[p as usize] = value;
|
||||
pfn += 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn setup_start_info(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
state: &BootState,
|
||||
cmdline: &str,
|
||||
) -> Result<()> {
|
||||
let ptr = setup
|
||||
.phys
|
||||
.pfn_to_ptr(state.start_info_segment.pfn, 1)
|
||||
.await?;
|
||||
let byte_slice =
|
||||
unsafe { slice::from_raw_parts_mut(ptr as *mut u8, X86_PAGE_SIZE as usize) };
|
||||
byte_slice.fill(0);
|
||||
let info = ptr as *mut StartInfo;
|
||||
|
||||
let page_table_segment = state
|
||||
.page_table_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("page_table_segment missing"))?;
|
||||
let p2m_segment = state
|
||||
.p2m_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("p2m_segment missing"))?;
|
||||
unsafe {
|
||||
for (i, c) in X86_GUEST_MAGIC.chars().enumerate() {
|
||||
(*info).magic[i] = c as c_char;
|
||||
}
|
||||
(*info).magic[X86_GUEST_MAGIC.len()] = 0 as c_char;
|
||||
(*info).nr_pages = setup.total_pages;
|
||||
(*info).shared_info = state.shared_info_frame << X86_PAGE_SHIFT;
|
||||
(*info).pt_base = page_table_segment.vstart;
|
||||
(*info).nr_pt_frames = self.table.mappings[0].area.pgtables as u64;
|
||||
(*info).mfn_list = p2m_segment.vstart;
|
||||
(*info).first_p2m_pfn = p2m_segment.pfn;
|
||||
(*info).nr_p2m_frames = p2m_segment.pages;
|
||||
(*info).flags = 0;
|
||||
(*info).store_evtchn = state.store_evtchn;
|
||||
(*info).store_mfn = setup.phys.p2m[state.xenstore_segment.pfn as usize];
|
||||
let console = state.consoles.first().unwrap();
|
||||
(*info).console.mfn = setup.phys.p2m[console.1.pfn as usize];
|
||||
(*info).console.evtchn = console.0;
|
||||
(*info).mod_start = state.initrd_segment.vstart;
|
||||
(*info).mod_len = state.initrd_segment.size;
|
||||
for (i, c) in cmdline.chars().enumerate() {
|
||||
(*info).cmdline[i] = c as c_char;
|
||||
}
|
||||
(*info).cmdline[MAX_GUEST_CMDLINE - 1] = 0;
|
||||
trace!("setup_start_info start_info={:?}", *info);
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn setup_shared_info(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
shared_info_frame: u64,
|
||||
) -> Result<()> {
|
||||
let info = setup
|
||||
.phys
|
||||
.map_foreign_pages(shared_info_frame, X86_PAGE_SIZE)
|
||||
.await? as *mut SharedInfo;
|
||||
unsafe {
|
||||
let size = size_of::<SharedInfo>();
|
||||
let info_as_buff = slice::from_raw_parts_mut(info as *mut u8, size);
|
||||
info_as_buff.fill(0);
|
||||
for i in 0..32 {
|
||||
(*info).vcpu_info[i].evtchn_upcall_mask = 1;
|
||||
}
|
||||
trace!("setup_shared_info shared_info={:?}", *info);
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn meminit(
|
||||
&mut self,
|
||||
setup: &mut BootSetup,
|
||||
total_pages: u64,
|
||||
_: &Option<DomainSegment>,
|
||||
_: &Option<DomainSegment>,
|
||||
) -> Result<()> {
|
||||
setup.call.claim_pages(setup.domid, total_pages).await?;
|
||||
let mut vmemranges: Vec<VmemRange> = Vec::new();
|
||||
let stub = VmemRange {
|
||||
start: 0,
|
||||
end: total_pages << XEN_PAGE_SHIFT,
|
||||
end: domain.total_pages << XEN_PAGE_SHIFT,
|
||||
_flags: 0,
|
||||
_nid: 0,
|
||||
};
|
||||
@ -660,12 +486,10 @@ impl ArchBootSetup for X86BootSetup {
|
||||
p2m_size = p2m_size.max(range.end >> XEN_PAGE_SHIFT);
|
||||
}
|
||||
|
||||
if total != total_pages {
|
||||
if total != domain.total_pages {
|
||||
return Err(Error::MemorySetupFailed("total pages mismatch"));
|
||||
}
|
||||
|
||||
setup.total_pages = total;
|
||||
|
||||
let mut p2m = vec![u64::MAX; p2m_size as usize];
|
||||
for range in &vmemranges {
|
||||
let mut extents_init = vec![0u64; SUPERPAGE_BATCH_SIZE as usize];
|
||||
@ -694,10 +518,10 @@ impl ArchBootSetup for X86BootSetup {
|
||||
}
|
||||
|
||||
let extents_init_slice = extents_init.as_slice();
|
||||
let extents = setup
|
||||
let extents = domain
|
||||
.call
|
||||
.populate_physmap(
|
||||
setup.domid,
|
||||
domain.domid,
|
||||
count,
|
||||
SUPERPAGE_2MB_SHIFT as u32,
|
||||
0,
|
||||
@ -725,9 +549,9 @@ impl ArchBootSetup for X86BootSetup {
|
||||
let p2m_idx = (pfn_base + j) as usize;
|
||||
let p2m_end_idx = p2m_idx + allocsz as usize;
|
||||
let input_extent_starts = &p2m[p2m_idx..p2m_end_idx];
|
||||
let result = setup
|
||||
let result = domain
|
||||
.call
|
||||
.populate_physmap(setup.domid, allocsz, 0, 0, input_extent_starts)
|
||||
.populate_physmap(domain.domid, allocsz, 0, 0, input_extent_starts)
|
||||
.await?;
|
||||
|
||||
if result.len() != allocsz as usize {
|
||||
@ -747,51 +571,299 @@ impl ArchBootSetup for X86BootSetup {
|
||||
}
|
||||
}
|
||||
|
||||
setup.phys.load_p2m(p2m);
|
||||
setup.call.claim_pages(setup.domid, 0).await?;
|
||||
domain.phys.load_p2m(p2m);
|
||||
domain.call.claim_pages(domain.domid, 0).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn bootlate(&mut self, setup: &mut BootSetup, state: &mut BootState) -> Result<()> {
|
||||
let p2m_segment = state
|
||||
async fn alloc_p2m_segment(
|
||||
&mut self,
|
||||
domain: &mut BootDomain,
|
||||
) -> Result<Option<DomainSegment>> {
|
||||
let mut p2m_alloc_size =
|
||||
((domain.phys.p2m_size() * 8) + X86_PAGE_SIZE - 1) & !(X86_PAGE_SIZE - 1);
|
||||
let from = domain.image_info.virt_p2m_base;
|
||||
let to = from + p2m_alloc_size - 1;
|
||||
let m = self.count_page_tables(domain, from, to, domain.pfn_alloc_end)?;
|
||||
|
||||
let pgtables: usize;
|
||||
{
|
||||
let map = &mut self.table.mappings[m];
|
||||
map.area.pfn = domain.pfn_alloc_end;
|
||||
for lvl_idx in 0..4 {
|
||||
map.levels[lvl_idx].pfn += p2m_alloc_size >> X86_PAGE_SHIFT;
|
||||
}
|
||||
pgtables = map.area.pgtables;
|
||||
}
|
||||
self.table.mappings_count += 1;
|
||||
p2m_alloc_size += (pgtables << X86_PAGE_SHIFT) as u64;
|
||||
let p2m_segment = domain.alloc_segment(0, p2m_alloc_size).await?;
|
||||
Ok(Some(p2m_segment))
|
||||
}
|
||||
|
||||
async fn alloc_page_tables(
|
||||
&mut self,
|
||||
domain: &mut BootDomain,
|
||||
) -> Result<Option<DomainSegment>> {
|
||||
let mut extra_pages = 1;
|
||||
extra_pages += (512 * 1024) / X86_PAGE_SIZE;
|
||||
let mut pages = extra_pages;
|
||||
|
||||
let mut try_virt_end: u64;
|
||||
let mut m: usize;
|
||||
loop {
|
||||
try_virt_end = BootDomain::round_up(
|
||||
domain.virt_alloc_end + pages * X86_PAGE_SIZE,
|
||||
BootDomain::bits_to_mask(22),
|
||||
);
|
||||
m = self.count_page_tables(domain, domain.image_info.virt_base, try_virt_end, 0)?;
|
||||
pages = self.table.mappings[m].area.pgtables as u64 + extra_pages;
|
||||
if domain.virt_alloc_end + pages * X86_PAGE_SIZE <= try_virt_end + 1 {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
self.table.mappings[m].area.pfn = 0;
|
||||
self.table.mappings_count += 1;
|
||||
domain.virt_pgtab_end = try_virt_end + 1;
|
||||
let size = self.table.mappings[m].area.pgtables as u64 * X86_PAGE_SIZE;
|
||||
let segment = domain.alloc_segment(0, size).await?;
|
||||
debug!(
|
||||
"alloc_page_tables table={:?} segment={:?}",
|
||||
self.table, segment
|
||||
);
|
||||
Ok(Some(segment))
|
||||
}
|
||||
|
||||
async fn setup_page_tables(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
let p2m_segment = self
|
||||
.p2m_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("p2m_segment missing"))?;
|
||||
let page_table_segment = state
|
||||
let p2m_guest = unsafe {
|
||||
slice::from_raw_parts_mut(
|
||||
p2m_segment.addr as *mut u64,
|
||||
domain.phys.p2m_size() as usize,
|
||||
)
|
||||
};
|
||||
copy(p2m_guest, &domain.phys.p2m);
|
||||
|
||||
for l in (0usize..X86_PGTABLE_LEVELS as usize).rev() {
|
||||
for m1 in 0usize..self.table.mappings_count {
|
||||
let map1 = &self.table.mappings[m1];
|
||||
let from = map1.levels[l].from;
|
||||
let to = map1.levels[l].to;
|
||||
let pg_ptr = domain.phys.pfn_to_ptr(map1.levels[l].pfn, 0).await? as *mut u64;
|
||||
for m2 in 0usize..self.table.mappings_count {
|
||||
let map2 = &self.table.mappings[m2];
|
||||
let lvl = if l > 0 {
|
||||
&map2.levels[l - 1]
|
||||
} else {
|
||||
&map2.area
|
||||
};
|
||||
|
||||
if l > 0 && lvl.pgtables == 0 {
|
||||
continue;
|
||||
}
|
||||
|
||||
if lvl.from >= to || lvl.to <= from {
|
||||
continue;
|
||||
}
|
||||
|
||||
let p_s = (std::cmp::max(from, lvl.from) - from)
|
||||
>> (X86_PAGE_SHIFT + l as u64 * X86_PGTABLE_LEVEL_SHIFT);
|
||||
let p_e = (std::cmp::min(to, lvl.to) - from)
|
||||
>> (X86_PAGE_SHIFT + l as u64 * X86_PGTABLE_LEVEL_SHIFT);
|
||||
let rhs = X86_PAGE_SHIFT as usize + l * X86_PGTABLE_LEVEL_SHIFT as usize;
|
||||
let mut pfn = ((std::cmp::max(from, lvl.from) - lvl.from) >> rhs) + lvl.pfn;
|
||||
|
||||
debug!(
|
||||
"setup_page_tables lvl={} map_1={} map_2={} pfn={:#x} p_s={:#x} p_e={:#x}",
|
||||
l, m1, m2, pfn, p_s, p_e
|
||||
);
|
||||
|
||||
let pg = unsafe { slice::from_raw_parts_mut(pg_ptr, (p_e + 1) as usize) };
|
||||
for p in p_s..p_e + 1 {
|
||||
let prot = self.get_pg_prot(l, pfn);
|
||||
let pfn_paddr = domain.phys.p2m[pfn as usize] << X86_PAGE_SHIFT;
|
||||
let value = pfn_paddr | prot;
|
||||
pg[p as usize] = value;
|
||||
pfn += 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn setup_hypercall_page(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
if domain.image_info.virt_hypercall == u64::MAX {
|
||||
return Ok(());
|
||||
}
|
||||
let pfn =
|
||||
(domain.image_info.virt_hypercall - domain.image_info.virt_base) >> self.page_shift();
|
||||
let mfn = domain.phys.p2m[pfn as usize];
|
||||
domain.call.hypercall_init(domain.domid, mfn).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn alloc_magic_pages(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
if domain.image_info.virt_p2m_base >= domain.image_info.virt_base
|
||||
|| (domain.image_info.virt_p2m_base & ((1 << self.page_shift()) - 1)) != 0
|
||||
{
|
||||
self.p2m_segment = self.alloc_p2m_segment(domain).await?;
|
||||
}
|
||||
self.start_info_segment = Some(domain.alloc_page()?);
|
||||
self.xenstore_segment = Some(domain.alloc_page()?);
|
||||
domain.store_mfn = domain.phys.p2m[self.xenstore_segment.as_ref().unwrap().pfn as usize];
|
||||
let evtchn = domain.call.evtchn_alloc_unbound(domain.domid, 0).await?;
|
||||
let page = domain.alloc_page()?;
|
||||
domain
|
||||
.consoles
|
||||
.push((evtchn, domain.phys.p2m[page.pfn as usize]));
|
||||
self.page_table_segment = self.alloc_page_tables(domain).await?;
|
||||
self.boot_stack_segment = Some(domain.alloc_page()?);
|
||||
|
||||
if domain.virt_pgtab_end > 0 {
|
||||
domain.alloc_padding_pages(domain.virt_pgtab_end)?;
|
||||
}
|
||||
|
||||
if self.p2m_segment.is_none() {
|
||||
if let Some(mut p2m_segment) = self.alloc_p2m_segment(domain).await? {
|
||||
p2m_segment.vstart = domain.image_info.virt_p2m_base;
|
||||
self.p2m_segment = Some(p2m_segment);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn setup_shared_info(
|
||||
&mut self,
|
||||
domain: &mut BootDomain,
|
||||
shared_info_frame: u64,
|
||||
) -> Result<()> {
|
||||
let info = domain
|
||||
.phys
|
||||
.map_foreign_pages(shared_info_frame, X86_PAGE_SIZE)
|
||||
.await? as *mut SharedInfo;
|
||||
unsafe {
|
||||
let size = size_of::<SharedInfo>();
|
||||
let info_as_buff = slice::from_raw_parts_mut(info as *mut u8, size);
|
||||
info_as_buff.fill(0);
|
||||
for i in 0..32 {
|
||||
(*info).vcpu_info[i].evtchn_upcall_mask = 1;
|
||||
}
|
||||
trace!("setup_shared_info shared_info={:?}", *info);
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn setup_start_info(
|
||||
&mut self,
|
||||
domain: &mut BootDomain,
|
||||
shared_info_frame: u64,
|
||||
) -> Result<()> {
|
||||
let start_info_segment = self
|
||||
.start_info_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("start_info_segment missing"))?;
|
||||
|
||||
let ptr = domain.phys.pfn_to_ptr(start_info_segment.pfn, 1).await?;
|
||||
let byte_slice =
|
||||
unsafe { slice::from_raw_parts_mut(ptr as *mut u8, X86_PAGE_SIZE as usize) };
|
||||
byte_slice.fill(0);
|
||||
let info = ptr as *mut StartInfo;
|
||||
|
||||
let page_table_segment = self
|
||||
.page_table_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("page_table_segment missing"))?;
|
||||
let p2m_segment = self
|
||||
.p2m_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("p2m_segment missing"))?;
|
||||
let xenstore_segment = self
|
||||
.xenstore_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("xenstore_segment missing"))?;
|
||||
unsafe {
|
||||
for (i, c) in X86_GUEST_MAGIC.chars().enumerate() {
|
||||
(*info).magic[i] = c as c_char;
|
||||
}
|
||||
(*info).magic[X86_GUEST_MAGIC.len()] = 0 as c_char;
|
||||
(*info).nr_pages = domain.total_pages;
|
||||
(*info).shared_info = shared_info_frame << X86_PAGE_SHIFT;
|
||||
(*info).pt_base = page_table_segment.vstart;
|
||||
(*info).nr_pt_frames = self.table.mappings[0].area.pgtables as u64;
|
||||
(*info).mfn_list = p2m_segment.vstart;
|
||||
(*info).first_p2m_pfn = p2m_segment.pfn;
|
||||
(*info).nr_p2m_frames = p2m_segment.pages;
|
||||
(*info).flags = 0;
|
||||
(*info).store_evtchn = domain.store_evtchn;
|
||||
(*info).store_mfn = domain.phys.p2m[xenstore_segment.pfn as usize];
|
||||
let console = domain.consoles.first().unwrap();
|
||||
(*info).console.mfn = console.1;
|
||||
(*info).console.evtchn = console.0;
|
||||
(*info).mod_start = domain.initrd_segment.vstart;
|
||||
(*info).mod_len = domain.initrd_segment.size;
|
||||
for (i, c) in domain.cmdline.chars().enumerate() {
|
||||
(*info).cmdline[i] = c as c_char;
|
||||
}
|
||||
(*info).cmdline[MAX_GUEST_CMDLINE - 1] = 0;
|
||||
trace!("setup_start_info start_info={:?}", *info);
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn bootlate(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
let p2m_segment = self
|
||||
.p2m_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("p2m_segment missing"))?;
|
||||
let page_table_segment = self
|
||||
.page_table_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("page_table_segment missing"))?;
|
||||
let pg_pfn = page_table_segment.pfn;
|
||||
let pg_mfn = setup.phys.p2m[pg_pfn as usize];
|
||||
setup.phys.unmap(pg_pfn)?;
|
||||
setup.phys.unmap(p2m_segment.pfn)?;
|
||||
let pg_mfn = domain.phys.p2m[pg_pfn as usize];
|
||||
domain.phys.unmap(pg_pfn)?;
|
||||
domain.phys.unmap(p2m_segment.pfn)?;
|
||||
|
||||
let map = setup.call.get_memory_map(E820_MAX).await?;
|
||||
let mem_mb = setup.total_pages >> (20 - self.page_shift());
|
||||
let map = domain.call.get_memory_map(E820_MAX).await?;
|
||||
let mem_mb = domain.total_pages >> (20 - self.page_shift());
|
||||
let mem_kb = mem_mb * 1024;
|
||||
let e820 = self.e820_sanitize(map, mem_kb, 0)?;
|
||||
setup.call.set_memory_map(setup.domid, e820).await?;
|
||||
domain.call.set_memory_map(domain.domid, e820).await?;
|
||||
|
||||
setup
|
||||
domain
|
||||
.call
|
||||
.mmuext(setup.domid, MMUEXT_PIN_L4_TABLE, pg_mfn, 0)
|
||||
.mmuext(domain.domid, MMUEXT_PIN_L4_TABLE, pg_mfn, 0)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn vcpu(&mut self, setup: &mut BootSetup, state: &mut BootState) -> Result<()> {
|
||||
let page_table_segment = state
|
||||
async fn vcpu(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
let page_table_segment = self
|
||||
.page_table_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("page_table_segment missing"))?;
|
||||
let boot_stack_segment = self
|
||||
.boot_stack_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("boot_stack_segment missing"))?;
|
||||
let start_info_segment = self
|
||||
.start_info_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("start_info_segment missing"))?;
|
||||
let pg_pfn = page_table_segment.pfn;
|
||||
let pg_mfn = setup.phys.p2m[pg_pfn as usize];
|
||||
let mut vcpu = VcpuGuestContext::default();
|
||||
vcpu.user_regs.rip = state.image_info.virt_entry;
|
||||
let pg_mfn = domain.phys.p2m[pg_pfn as usize];
|
||||
let mut vcpu = x8664VcpuGuestContext::default();
|
||||
vcpu.user_regs.rip = domain.image_info.virt_entry;
|
||||
vcpu.user_regs.rsp =
|
||||
state.image_info.virt_base + (state.boot_stack_segment.pfn + 1) * self.page_size();
|
||||
domain.image_info.virt_base + (boot_stack_segment.pfn + 1) * self.page_size();
|
||||
vcpu.user_regs.rsi =
|
||||
state.image_info.virt_base + (state.start_info_segment.pfn) * self.page_size();
|
||||
domain.image_info.virt_base + (start_info_segment.pfn) * self.page_size();
|
||||
vcpu.user_regs.rflags = 1 << 9;
|
||||
vcpu.debugreg[6] = 0xffff0ff0;
|
||||
vcpu.debugreg[7] = 0x00000400;
|
||||
@ -808,7 +880,43 @@ impl ArchBootSetup for X86BootSetup {
|
||||
vcpu.kernel_ss = vcpu.user_regs.ss as u64;
|
||||
vcpu.kernel_sp = vcpu.user_regs.rsp;
|
||||
trace!("vcpu context: {:?}", vcpu);
|
||||
setup.call.set_vcpu_context(setup.domid, 0, &vcpu).await?;
|
||||
domain
|
||||
.call
|
||||
.set_vcpu_context(domain.domid, 0, VcpuGuestContextAny { value: vcpu })
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn gnttab_seed(&mut self, domain: &mut BootDomain) -> Result<()> {
|
||||
let xenstore_segment = self
|
||||
.xenstore_segment
|
||||
.as_ref()
|
||||
.ok_or(Error::MemorySetupFailed("xenstore_segment missing"))?;
|
||||
|
||||
let console_gfn = domain.consoles.first().map(|x| x.1).unwrap_or(0) as usize;
|
||||
let xenstore_gfn = domain.phys.p2m[xenstore_segment.pfn as usize];
|
||||
let addr = domain
|
||||
.call
|
||||
.mmap(0, 1 << XEN_PAGE_SHIFT)
|
||||
.await
|
||||
.ok_or(Error::MmapFailed)?;
|
||||
domain
|
||||
.call
|
||||
.map_resource(domain.domid, 1, 0, 0, 1, addr)
|
||||
.await?;
|
||||
let entries = unsafe { slice::from_raw_parts_mut(addr as *mut GrantEntry, 2) };
|
||||
entries[0].flags = 1 << 0;
|
||||
entries[0].domid = 0;
|
||||
entries[0].frame = console_gfn as u32;
|
||||
entries[1].flags = 1 << 0;
|
||||
entries[1].domid = 0;
|
||||
entries[1].frame = xenstore_gfn as u32;
|
||||
unsafe {
|
||||
let result = munmap(addr as *mut c_void, 1 << XEN_PAGE_SHIFT);
|
||||
if result != 0 {
|
||||
return Err(Error::UnmapFailed(Errno::from_raw(result)));
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@ -108,7 +108,6 @@ impl XsdClient {
|
||||
}
|
||||
|
||||
async fn write<P: AsRef<str>>(&self, tx: u32, path: P, data: Vec<u8>) -> Result<bool> {
|
||||
trace!("write tx={tx} path={} data={:?}", path.as_ref(), data);
|
||||
let mut buffer = Vec::new();
|
||||
let path = CString::new(path.as_ref())?;
|
||||
buffer.extend_from_slice(path.as_bytes_with_nul());
|
||||
@ -120,6 +119,11 @@ impl XsdClient {
|
||||
response.parse_bool()
|
||||
}
|
||||
|
||||
async fn write_string<P: AsRef<str>>(&self, tx: u32, path: P, data: &str) -> Result<bool> {
|
||||
trace!("write tx={tx} path={} data=\"{}\"", path.as_ref(), data);
|
||||
self.write(tx, path, data.as_bytes().to_vec()).await
|
||||
}
|
||||
|
||||
async fn mkdir<P: AsRef<str>>(&self, tx: u32, path: P) -> Result<bool> {
|
||||
trace!("mkdir tx={tx} path={}", path.as_ref());
|
||||
self.socket
|
||||
@ -247,7 +251,7 @@ impl XsdInterface for XsdClient {
|
||||
}
|
||||
|
||||
async fn write_string<P: AsRef<str>>(&self, path: P, data: &str) -> Result<bool> {
|
||||
self.write(0, path, data.as_bytes().to_vec()).await
|
||||
self.write_string(0, path, data).await
|
||||
}
|
||||
|
||||
async fn mkdir<P: AsRef<str>>(&self, path: P) -> Result<bool> {
|
||||
@ -287,9 +291,7 @@ impl XsdInterface for XsdTransaction {
|
||||
}
|
||||
|
||||
async fn write_string<P: AsRef<str>>(&self, path: P, data: &str) -> Result<bool> {
|
||||
self.client
|
||||
.write(self.tx, path, data.as_bytes().to_vec())
|
||||
.await
|
||||
self.client.write_string(self.tx, path, data).await
|
||||
}
|
||||
|
||||
async fn mkdir<P: AsRef<str>>(&self, path: P) -> Result<bool> {
|
||||
|
||||
Reference in New Issue
Block a user