mirror of
https://github.com/edera-dev/krata.git
synced 2025-08-02 21:00:55 +00:00
chore(xen): move device creation into transaction interface (#196)
* chore(xen): move domain creation to xenplatform * chore(xen): move device transactions into separate interface
This commit is contained in:
Alex Zenla
GitHub
parent
6f39f115b7
commit
ef068e790c
@ -15,6 +15,7 @@ use krataoci::packer::OciPackedImage;
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use tokio::sync::Semaphore;
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use uuid::Uuid;
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use xenclient::{DomainChannel, DomainConfig, DomainDisk, DomainNetworkInterface};
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use xenplatform::domain::BaseDomainConfig;
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use crate::cfgblk::ConfigBlock;
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use crate::RuntimeContext;
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@ -220,13 +221,18 @@ impl GuestLauncher {
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}
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let config = DomainConfig {
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backend_domid: 0,
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name: xen_name,
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base: BaseDomainConfig {
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max_vcpus: request.vcpus,
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mem_mb: request.mem,
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kernel: request.kernel,
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initrd: request.initrd,
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cmdline,
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uuid,
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owner_domid: 0,
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enable_iommu: true,
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},
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backend_domid: 0,
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name: xen_name,
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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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@ -241,7 +247,6 @@ impl GuestLauncher {
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}],
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pcis: request.pcis.clone(),
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filesystems: vec![],
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event_channels: vec![],
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extra_keys,
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extra_rw_paths: vec!["krata/guest".to_string()],
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};
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@ -1,7 +1,6 @@
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/// Handwritten hypercall bindings.
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use nix::ioctl_readwrite_bad;
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use std::ffi::{c_char, c_int, c_uint, c_ulong};
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use uuid::Uuid;
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#[repr(C)]
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#[derive(Copy, Clone, Debug)]
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@ -269,7 +268,7 @@ impl Default for CreateDomain {
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fn default() -> Self {
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CreateDomain {
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ssidref: SECINITSID_DOMU,
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handle: Uuid::new_v4().into_bytes(),
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handle: [0; 16],
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flags: 0,
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iommu_opts: 0,
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max_vcpus: 1,
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@ -1,7 +1,9 @@
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use std::{env, process};
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use tokio::fs;
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use uuid::Uuid;
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use xenclient::error::Result;
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use xenclient::{DomainConfig, XenClient};
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use xenplatform::domain::BaseDomainConfig;
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#[cfg(target_arch = "x86_64")]
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type RuntimePlatform = xenplatform::x86pv::X86PvPlatform;
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@ -22,13 +24,18 @@ async fn main() -> Result<()> {
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let initrd_path = args.get(2).expect("argument not specified");
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let client = XenClient::new(0, RuntimePlatform::new()).await?;
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let config = DomainConfig {
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backend_domid: 0,
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name: "xenclient-test".to_string(),
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base: BaseDomainConfig {
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uuid: Uuid::new_v4(),
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max_vcpus: 1,
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mem_mb: 512,
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enable_iommu: true,
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kernel: fs::read(&kernel_image_path).await?,
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initrd: fs::read(&initrd_path).await?,
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cmdline: "earlyprintk=xen earlycon=xen console=hvc0 init=/init".to_string(),
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owner_domid: 0,
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},
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backend_domid: 0,
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name: "xenclient-test".to_string(),
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swap_console_backend: None,
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disks: vec![],
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channels: vec![],
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@ -37,7 +44,6 @@ async fn main() -> Result<()> {
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filesystems: vec![],
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extra_keys: vec![],
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extra_rw_paths: vec![],
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event_channels: vec![],
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};
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let created = client.create(&config).await?;
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println!("created domain {}", created.domid);
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@ -1,33 +1,28 @@
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pub mod error;
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use crate::error::{Error, Result};
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use indexmap::IndexMap;
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use log::{debug, trace, warn};
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use pci::{PciBdf, XenPciBackend};
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use log::{debug, trace};
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use pci::PciBdf;
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use tokio::time::timeout;
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use xenplatform::boot::{BootDomain, BootSetup, BootSetupPlatform};
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use xenplatform::elfloader::ElfImageLoader;
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use xenplatform::sys::XEN_PAGE_SHIFT;
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use tx::ClientTransaction;
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use xenplatform::boot::BootSetupPlatform;
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use xenplatform::domain::{BaseDomainConfig, BaseDomainManager, CreatedDomain};
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use std::path::PathBuf;
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use std::str::FromStr;
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use std::sync::Arc;
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use std::time::Duration;
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use uuid::Uuid;
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use xencall::sys::{CreateDomain, DOMCTL_DEV_RDM_RELAXED};
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use xencall::XenCall;
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use xenstore::{
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XsPermission, XsdClient, XsdInterface, XsdTransaction, XS_PERM_NONE, XS_PERM_READ,
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XS_PERM_READ_WRITE,
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};
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use xenstore::{XsdClient, XsdInterface};
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pub mod pci;
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pub mod tx;
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#[derive(Clone)]
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pub struct XenClient<P: BootSetupPlatform> {
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pub store: XsdClient,
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call: XenCall,
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platform: Arc<P>,
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domain_manager: Arc<BaseDomainManager<P>>,
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}
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#[derive(Clone, Debug)]
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@ -98,19 +93,14 @@ pub struct DomainPciDevice {
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#[derive(Clone, Debug)]
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pub struct DomainConfig {
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pub base: BaseDomainConfig,
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pub backend_domid: u32,
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pub name: String,
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pub max_vcpus: u32,
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pub mem_mb: u64,
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pub kernel: Vec<u8>,
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pub initrd: Vec<u8>,
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pub cmdline: String,
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pub disks: Vec<DomainDisk>,
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pub swap_console_backend: Option<String>,
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pub channels: Vec<DomainChannel>,
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pub vifs: Vec<DomainNetworkInterface>,
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pub filesystems: Vec<DomainFilesystem>,
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pub event_channels: Vec<DomainEventChannel>,
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pub pcis: Vec<DomainPciDevice>,
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pub extra_keys: Vec<(String, String)>,
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pub extra_rw_paths: Vec<String>,
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@ -122,228 +112,55 @@ pub struct CreatedChannel {
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pub evtchn: u32,
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}
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#[derive(Debug)]
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pub struct CreatedDomain {
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pub domid: u32,
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pub channels: Vec<CreatedChannel>,
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}
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#[allow(clippy::too_many_arguments)]
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impl<P: BootSetupPlatform> XenClient<P> {
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pub async fn new(current_domid: u32, platform: P) -> Result<XenClient<P>> {
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let store = XsdClient::open().await?;
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let call = XenCall::open(current_domid)?;
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let call: XenCall = XenCall::open(current_domid)?;
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let domain_manager = BaseDomainManager::new(call.clone(), platform).await?;
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Ok(XenClient {
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store,
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call,
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platform: Arc::new(platform),
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domain_manager: Arc::new(domain_manager),
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})
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}
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pub async fn create(&self, config: &DomainConfig) -> Result<CreatedDomain> {
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let mut domain = self.platform.create_domain(!config.pcis.is_empty());
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domain.max_vcpus = config.max_vcpus;
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let domid = self.call.create_domain(domain).await?;
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match self.init(domid, &domain, config).await {
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Ok(created) => Ok(created),
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let created = self.domain_manager.create(config.base.clone()).await?;
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match self.init(created.domid, config, &created).await {
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Ok(_) => Ok(created),
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Err(err) => {
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// ignore since destroying a domain is best
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// effort when an error occurs
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let _ = self.destroy(domid).await;
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let _ = self.domain_manager.destroy(created.domid).await;
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Err(err)
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}
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}
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}
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async fn init(
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&self,
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domid: u32,
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created: &CreateDomain,
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config: &DomainConfig,
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) -> Result<CreatedDomain> {
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trace!("XenClient init domid={} domain={:?}", domid, created,);
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let backend_dom_path = self.store.get_domain_path(0).await?;
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let dom_path = self.store.get_domain_path(domid).await?;
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let uuid_string = Uuid::from_bytes(created.handle).to_string();
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let vm_path = format!("/vm/{}", uuid_string);
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let ro_perm = &[
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XsPermission {
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id: 0,
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perms: XS_PERM_NONE,
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},
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XsPermission {
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id: domid,
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perms: XS_PERM_READ,
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},
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];
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let rw_perm = &[XsPermission {
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id: domid,
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perms: XS_PERM_READ_WRITE,
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}];
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let no_perm = &[XsPermission {
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id: 0,
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perms: XS_PERM_NONE,
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}];
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{
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let tx = self.store.transaction().await?;
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tx.rm(dom_path.as_str()).await?;
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tx.mknod(dom_path.as_str(), ro_perm).await?;
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tx.rm(vm_path.as_str()).await?;
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tx.mknod(vm_path.as_str(), ro_perm).await?;
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tx.mknod(vm_path.as_str(), no_perm).await?;
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tx.mknod(format!("{}/device", vm_path).as_str(), no_perm)
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.await?;
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tx.write_string(format!("{}/vm", dom_path).as_str(), &vm_path)
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.await?;
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tx.mknod(format!("{}/cpu", dom_path).as_str(), ro_perm)
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.await?;
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tx.mknod(format!("{}/memory", dom_path).as_str(), ro_perm)
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.await?;
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tx.mknod(format!("{}/control", dom_path).as_str(), ro_perm)
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.await?;
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tx.mknod(format!("{}/control/shutdown", dom_path).as_str(), rw_perm)
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.await?;
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tx.mknod(
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format!("{}/control/feature-poweroff", dom_path).as_str(),
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rw_perm,
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)
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.await?;
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tx.mknod(
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format!("{}/control/feature-reboot", dom_path).as_str(),
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rw_perm,
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)
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.await?;
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tx.mknod(
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format!("{}/control/feature-suspend", dom_path).as_str(),
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rw_perm,
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)
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.await?;
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tx.mknod(format!("{}/control/sysrq", dom_path).as_str(), rw_perm)
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.await?;
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tx.mknod(format!("{}/data", dom_path).as_str(), rw_perm)
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.await?;
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tx.mknod(format!("{}/drivers", dom_path).as_str(), rw_perm)
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.await?;
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tx.mknod(format!("{}/feature", dom_path).as_str(), rw_perm)
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.await?;
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tx.mknod(format!("{}/attr", dom_path).as_str(), rw_perm)
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.await?;
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tx.mknod(format!("{}/error", dom_path).as_str(), rw_perm)
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.await?;
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tx.write_string(
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format!("{}/uuid", vm_path).as_str(),
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&Uuid::from_bytes(created.handle).to_string(),
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)
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.await?;
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tx.write_string(format!("{}/name", dom_path).as_str(), &config.name)
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.await?;
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tx.write_string(format!("{}/name", vm_path).as_str(), &config.name)
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.await?;
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for (key, value) in &config.extra_keys {
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tx.write_string(format!("{}/{}", dom_path, key).as_str(), value)
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.await?;
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pub async fn transaction(&self, domid: u32, backend_domid: u32) -> Result<ClientTransaction> {
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ClientTransaction::new(&self.store, domid, backend_domid).await
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}
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for path in &config.extra_rw_paths {
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tx.mknod(format!("{}/{}", dom_path, path).as_str(), rw_perm)
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async fn init(&self, domid: u32, config: &DomainConfig, created: &CreatedDomain) -> Result<()> {
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trace!("xenclient init domid={} domain={:?}", domid, created);
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let transaction = self.transaction(domid, config.backend_domid).await?;
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transaction
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.add_domain_declaration(&config.name, &config.base, created)
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.await?;
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}
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tx.commit().await?;
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}
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self.call.set_max_vcpus(domid, config.max_vcpus).await?;
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self.call
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.set_max_mem(domid, (config.mem_mb * 1024) + 2048)
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.await?;
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let mut domain: BootDomain;
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{
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let loader = ElfImageLoader::load_file_kernel(&config.kernel)?;
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let platform = (*self.platform).clone();
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let mut boot = BootSetup::new(self.call.clone(), domid, platform, loader, None);
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domain = boot
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.initialize(
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&config.initrd,
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config.mem_mb,
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config.max_vcpus,
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&config.cmdline,
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)
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.await?;
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boot.boot(&mut domain).await?;
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}
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{
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let tx = self.store.transaction().await?;
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tx.write_string(format!("{}/image/os_type", vm_path).as_str(), "linux")
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.await?;
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tx.write_string(
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format!("{}/image/cmdline", vm_path).as_str(),
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&config.cmdline,
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)
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.await?;
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tx.write_string(
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format!("{}/memory/static-max", dom_path).as_str(),
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&(config.mem_mb * 1024).to_string(),
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)
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.await?;
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tx.write_string(
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format!("{}/memory/target", dom_path).as_str(),
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&(config.mem_mb * 1024).to_string(),
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)
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.await?;
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tx.write_string(format!("{}/memory/videoram", dom_path).as_str(), "0")
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.await?;
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tx.write_string(format!("{}/domid", dom_path).as_str(), &domid.to_string())
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.await?;
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tx.write_string(format!("{}/type", dom_path).as_str(), "PV")
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.await?;
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tx.write_string(
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format!("{}/store/port", dom_path).as_str(),
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&domain.store_evtchn.to_string(),
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)
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.await?;
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tx.write_string(
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format!("{}/store/ring-ref", dom_path).as_str(),
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&domain.store_mfn.to_string(),
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)
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.await?;
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for i in 0..config.max_vcpus {
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let path = format!("{}/cpu/{}", dom_path, i);
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tx.mkdir(&path).await?;
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tx.set_perms(&path, ro_perm).await?;
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let path = format!("{}/cpu/{}/availability", dom_path, i);
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tx.write_string(&path, "online").await?;
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tx.set_perms(&path, ro_perm).await?;
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}
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tx.commit().await?;
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}
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transaction.commit().await?;
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if !self
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.store
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.introduce_domain(domid, domain.store_mfn, domain.store_evtchn)
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.introduce_domain(domid, created.store_mfn, created.store_evtchn)
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.await?
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{
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return Err(Error::IntroduceDomainFailed);
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}
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let tx = self.store.transaction().await?;
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self.console_device_add(
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&tx,
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&mut domain,
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let transaction = self.transaction(domid, config.backend_domid).await?;
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transaction
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.add_channel_device(
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created,
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0,
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&DomainChannel {
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typ: config
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.swap_console_backend
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@ -352,521 +169,49 @@ impl<P: BootSetupPlatform> XenClient<P> {
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.to_string(),
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initialized: true,
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},
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&dom_path,
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&backend_dom_path,
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config.backend_domid,
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domid,
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0,
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)
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.await?;
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let mut channels: Vec<CreatedChannel> = Vec::new();
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for (index, channel) in config.channels.iter().enumerate() {
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let (Some(ring_ref), Some(evtchn)) = self
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.console_device_add(
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&tx,
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&mut domain,
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channel,
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&dom_path,
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&backend_dom_path,
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config.backend_domid,
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domid,
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index + 1,
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)
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.await?
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else {
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continue;
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};
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channels.push(CreatedChannel { ring_ref, evtchn });
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transaction
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.add_channel_device(created, index + 1, channel)
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.await?;
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}
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for (index, disk) in config.disks.iter().enumerate() {
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self.disk_device_add(
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&tx,
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&dom_path,
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&backend_dom_path,
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config.backend_domid,
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domid,
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index,
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disk,
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)
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.await?;
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transaction.add_vbd_device(index, disk).await?;
|
||||
}
|
||||
|
||||
for (index, filesystem) in config.filesystems.iter().enumerate() {
|
||||
self.fs_9p_device_add(
|
||||
&tx,
|
||||
&dom_path,
|
||||
&backend_dom_path,
|
||||
config.backend_domid,
|
||||
domid,
|
||||
index,
|
||||
filesystem,
|
||||
)
|
||||
.await?;
|
||||
transaction.add_9pfs_device(index, filesystem).await?;
|
||||
}
|
||||
|
||||
for (index, vif) in config.vifs.iter().enumerate() {
|
||||
self.vif_device_add(
|
||||
&tx,
|
||||
&dom_path,
|
||||
&backend_dom_path,
|
||||
config.backend_domid,
|
||||
domid,
|
||||
index,
|
||||
vif,
|
||||
)
|
||||
.await?;
|
||||
transaction.add_vif_device(index, vif).await?;
|
||||
}
|
||||
|
||||
for (index, pci) in config.pcis.iter().enumerate() {
|
||||
self.pci_device_add(
|
||||
&tx,
|
||||
&dom_path,
|
||||
&backend_dom_path,
|
||||
config.backend_domid,
|
||||
domid,
|
||||
index,
|
||||
config.pcis.len(),
|
||||
pci,
|
||||
)
|
||||
transaction
|
||||
.add_pci_device(&self.call, index, config.pcis.len(), pci)
|
||||
.await?;
|
||||
}
|
||||
|
||||
for channel in &config.event_channels {
|
||||
let id = self
|
||||
.call
|
||||
.evtchn_alloc_unbound(domid, config.backend_domid)
|
||||
.await?;
|
||||
let channel_path = format!("{}/evtchn/{}", dom_path, channel.name);
|
||||
tx.write_string(&format!("{}/name", channel_path), &channel.name)
|
||||
.await?;
|
||||
tx.write_string(&format!("{}/channel", channel_path), &id.to_string())
|
||||
.await?;
|
||||
for (key, value) in &config.extra_keys {
|
||||
transaction.write_key(key, value).await?;
|
||||
}
|
||||
|
||||
tx.commit().await?;
|
||||
for key in &config.extra_rw_paths {
|
||||
transaction.add_rw_path(key).await?;
|
||||
}
|
||||
|
||||
transaction.commit().await?;
|
||||
self.call.unpause_domain(domid).await?;
|
||||
Ok(CreatedDomain { domid, channels })
|
||||
}
|
||||
|
||||
async fn disk_device_add(
|
||||
&self,
|
||||
tx: &XsdTransaction,
|
||||
dom_path: &str,
|
||||
backend_dom_path: &str,
|
||||
backend_domid: u32,
|
||||
domid: u32,
|
||||
index: usize,
|
||||
disk: &DomainDisk,
|
||||
) -> Result<()> {
|
||||
let id = (202 << 8) | (index << 4) as u64;
|
||||
let backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("removable", "0".to_string()),
|
||||
("bootable", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("dev", disk.vdev.to_string()),
|
||||
("type", "phy".to_string()),
|
||||
("mode", if disk.writable { "w" } else { "r" }.to_string()),
|
||||
("device-type", "disk".to_string()),
|
||||
("discard-enable", "0".to_string()),
|
||||
("specification", "xen".to_string()),
|
||||
("physical-device-path", disk.block.path.to_string()),
|
||||
(
|
||||
"physical-device",
|
||||
format!("{:02x}:{:02x}", disk.block.major, disk.block.minor),
|
||||
),
|
||||
];
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
("virtual-device", id.to_string()),
|
||||
("device-type", "disk".to_string()),
|
||||
("trusted", "1".to_string()),
|
||||
("protocol", "x86_64-abi".to_string()),
|
||||
];
|
||||
|
||||
self.device_add(
|
||||
tx,
|
||||
"vbd",
|
||||
id,
|
||||
dom_path,
|
||||
backend_dom_path,
|
||||
backend_domid,
|
||||
domid,
|
||||
frontend_items,
|
||||
backend_items,
|
||||
)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[allow(clippy::unnecessary_unwrap)]
|
||||
async fn console_device_add(
|
||||
&self,
|
||||
tx: &XsdTransaction,
|
||||
domain: &mut BootDomain,
|
||||
channel: &DomainChannel,
|
||||
dom_path: &str,
|
||||
backend_dom_path: &str,
|
||||
backend_domid: u32,
|
||||
domid: u32,
|
||||
index: usize,
|
||||
) -> Result<(Option<u64>, Option<u32>)> {
|
||||
let console = domain.consoles.get(index);
|
||||
let port = console.map(|x| x.0);
|
||||
let ring = console.map(|x| x.1);
|
||||
|
||||
let mut backend_entries = vec![
|
||||
("frontend-id", domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("protocol", "vt100".to_string()),
|
||||
];
|
||||
|
||||
let mut frontend_entries = vec![
|
||||
("backend-id", backend_domid.to_string()),
|
||||
("limit", "1048576".to_string()),
|
||||
("output", "pty".to_string()),
|
||||
("tty", "".to_string()),
|
||||
];
|
||||
|
||||
frontend_entries.push(("type", channel.typ.clone()));
|
||||
backend_entries.push(("type", channel.typ.clone()));
|
||||
|
||||
if port.is_some() && ring.is_some() {
|
||||
if channel.typ != "xenconsoled" {
|
||||
frontend_entries.push(("state", "1".to_string()));
|
||||
}
|
||||
|
||||
frontend_entries.extend_from_slice(&[
|
||||
("port", port.unwrap().to_string()),
|
||||
("ring-ref", ring.unwrap().to_string()),
|
||||
]);
|
||||
} else {
|
||||
frontend_entries.extend_from_slice(&[
|
||||
("state", "1".to_string()),
|
||||
("protocol", "vt100".to_string()),
|
||||
]);
|
||||
}
|
||||
|
||||
if channel.initialized {
|
||||
backend_entries.push(("state", "4".to_string()));
|
||||
} else {
|
||||
backend_entries.push(("state", "1".to_string()));
|
||||
}
|
||||
|
||||
self.device_add(
|
||||
tx,
|
||||
"console",
|
||||
index as u64,
|
||||
dom_path,
|
||||
backend_dom_path,
|
||||
backend_domid,
|
||||
domid,
|
||||
frontend_entries,
|
||||
backend_entries,
|
||||
)
|
||||
.await?;
|
||||
Ok((ring, port))
|
||||
}
|
||||
|
||||
async fn fs_9p_device_add(
|
||||
&self,
|
||||
tx: &XsdTransaction,
|
||||
dom_path: &str,
|
||||
backend_dom_path: &str,
|
||||
backend_domid: u32,
|
||||
domid: u32,
|
||||
index: usize,
|
||||
filesystem: &DomainFilesystem,
|
||||
) -> Result<()> {
|
||||
let id = 90 + index as u64;
|
||||
let backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("path", filesystem.path.to_string()),
|
||||
("security-model", "none".to_string()),
|
||||
];
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
("tag", filesystem.tag.to_string()),
|
||||
];
|
||||
|
||||
self.device_add(
|
||||
tx,
|
||||
"9pfs",
|
||||
id,
|
||||
dom_path,
|
||||
backend_dom_path,
|
||||
backend_domid,
|
||||
domid,
|
||||
frontend_items,
|
||||
backend_items,
|
||||
)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn vif_device_add(
|
||||
&self,
|
||||
tx: &XsdTransaction,
|
||||
dom_path: &str,
|
||||
backend_dom_path: &str,
|
||||
backend_domid: u32,
|
||||
domid: u32,
|
||||
index: usize,
|
||||
vif: &DomainNetworkInterface,
|
||||
) -> Result<()> {
|
||||
let id = 20 + index as u64;
|
||||
let mut backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("mac", vif.mac.to_string()),
|
||||
("mtu", vif.mtu.to_string()),
|
||||
("type", "vif".to_string()),
|
||||
("handle", id.to_string()),
|
||||
];
|
||||
|
||||
if vif.bridge.is_some() {
|
||||
backend_items.extend_from_slice(&[("bridge", vif.bridge.clone().unwrap())]);
|
||||
}
|
||||
|
||||
if vif.script.is_some() {
|
||||
backend_items.extend_from_slice(&[
|
||||
("script", vif.script.clone().unwrap()),
|
||||
("hotplug-status", "".to_string()),
|
||||
]);
|
||||
} else {
|
||||
backend_items.extend_from_slice(&[
|
||||
("script", "".to_string()),
|
||||
("hotplug-status", "connected".to_string()),
|
||||
]);
|
||||
}
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
("mac", vif.mac.to_string()),
|
||||
("trusted", "1".to_string()),
|
||||
("mtu", vif.mtu.to_string()),
|
||||
];
|
||||
|
||||
self.device_add(
|
||||
tx,
|
||||
"vif",
|
||||
id,
|
||||
dom_path,
|
||||
backend_dom_path,
|
||||
backend_domid,
|
||||
domid,
|
||||
frontend_items,
|
||||
backend_items,
|
||||
)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn pci_device_add(
|
||||
&self,
|
||||
tx: &XsdTransaction,
|
||||
dom_path: &str,
|
||||
backend_dom_path: &str,
|
||||
backend_domid: u32,
|
||||
domid: u32,
|
||||
index: usize,
|
||||
device_count: usize,
|
||||
device: &DomainPciDevice,
|
||||
) -> Result<()> {
|
||||
let backend = XenPciBackend::new();
|
||||
if !backend.is_assigned(&device.bdf).await? {
|
||||
return Err(Error::PciDeviceNotAssignable(device.bdf));
|
||||
}
|
||||
let resources = backend.read_resources(&device.bdf).await?;
|
||||
for resource in resources {
|
||||
if resource.is_bar_io() {
|
||||
self.call
|
||||
.ioport_permission(domid, resource.start as u32, resource.size() as u32, true)
|
||||
.await?;
|
||||
} else {
|
||||
self.call
|
||||
.iomem_permission(
|
||||
domid,
|
||||
resource.start >> XEN_PAGE_SHIFT,
|
||||
(resource.size() + (XEN_PAGE_SHIFT - 1)) >> XEN_PAGE_SHIFT,
|
||||
true,
|
||||
)
|
||||
.await?;
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(irq) = backend.read_irq(&device.bdf).await? {
|
||||
let irq = self.call.map_pirq(domid, irq as isize, None).await?;
|
||||
self.call.irq_permission(domid, irq, true).await?;
|
||||
}
|
||||
|
||||
backend.reset(&device.bdf).await?;
|
||||
|
||||
self.call
|
||||
.assign_device(
|
||||
domid,
|
||||
device.bdf.encode(),
|
||||
if device.rdm_reserve_policy == DomainPciRdmReservePolicy::Relaxed {
|
||||
DOMCTL_DEV_RDM_RELAXED
|
||||
} else {
|
||||
0
|
||||
},
|
||||
)
|
||||
.await?;
|
||||
|
||||
if device.permissive {
|
||||
backend.enable_permissive(&device.bdf).await?;
|
||||
}
|
||||
|
||||
let id = 60;
|
||||
|
||||
if index == 0 {
|
||||
let backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("num_devs", device_count.to_string()),
|
||||
];
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
];
|
||||
|
||||
self.device_add(
|
||||
tx,
|
||||
"pci",
|
||||
id,
|
||||
dom_path,
|
||||
backend_dom_path,
|
||||
backend_domid,
|
||||
domid,
|
||||
frontend_items,
|
||||
backend_items,
|
||||
)
|
||||
.await?;
|
||||
}
|
||||
|
||||
let backend_path = format!("{}/backend/{}/{}/{}", backend_dom_path, "pci", domid, id);
|
||||
|
||||
tx.write_string(
|
||||
format!("{}/key-{}", backend_path, index),
|
||||
&device.bdf.to_string(),
|
||||
)
|
||||
.await?;
|
||||
tx.write_string(
|
||||
format!("{}/dev-{}", backend_path, index),
|
||||
&device.bdf.to_string(),
|
||||
)
|
||||
.await?;
|
||||
|
||||
if let Some(vdefn) = device.bdf.vdefn {
|
||||
tx.write_string(
|
||||
format!("{}/vdefn-{}", backend_path, index),
|
||||
&format!("{:#x}", vdefn),
|
||||
)
|
||||
.await?;
|
||||
}
|
||||
|
||||
let mut options = IndexMap::new();
|
||||
options.insert("permissive", if device.permissive { "1" } else { "0" });
|
||||
options.insert("rdm_policy", device.rdm_reserve_policy.to_option_str());
|
||||
options.insert("msitranslate", if device.msi_translate { "1" } else { "0" });
|
||||
options.insert(
|
||||
"power_mgmt",
|
||||
if device.power_management { "1" } else { "0" },
|
||||
);
|
||||
let options = options
|
||||
.into_iter()
|
||||
.map(|(key, value)| format!("{}={}", key, value))
|
||||
.collect::<Vec<_>>()
|
||||
.join(",");
|
||||
|
||||
tx.write_string(format!("{}/opts-{}", backend_path, index), &options)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn device_add(
|
||||
&self,
|
||||
tx: &XsdTransaction,
|
||||
typ: &str,
|
||||
id: u64,
|
||||
dom_path: &str,
|
||||
backend_dom_path: &str,
|
||||
backend_domid: u32,
|
||||
domid: u32,
|
||||
frontend_items: Vec<(&str, String)>,
|
||||
backend_items: Vec<(&str, String)>,
|
||||
) -> Result<()> {
|
||||
let console_zero = typ == "console" && id == 0;
|
||||
|
||||
let frontend_path = if console_zero {
|
||||
format!("{}/console", dom_path)
|
||||
} else {
|
||||
format!("{}/device/{}/{}", dom_path, typ, id)
|
||||
};
|
||||
let backend_path = format!("{}/backend/{}/{}/{}", backend_dom_path, typ, domid, id);
|
||||
|
||||
let mut backend_items: Vec<(&str, String)> = backend_items.clone();
|
||||
let mut frontend_items: Vec<(&str, String)> = frontend_items.clone();
|
||||
backend_items.push(("frontend", frontend_path.clone()));
|
||||
frontend_items.push(("backend", backend_path.clone()));
|
||||
let frontend_perms = &[
|
||||
XsPermission {
|
||||
id: domid,
|
||||
perms: XS_PERM_NONE,
|
||||
},
|
||||
XsPermission {
|
||||
id: backend_domid,
|
||||
perms: XS_PERM_READ,
|
||||
},
|
||||
];
|
||||
|
||||
let backend_perms = &[
|
||||
XsPermission {
|
||||
id: backend_domid,
|
||||
perms: XS_PERM_NONE,
|
||||
},
|
||||
XsPermission {
|
||||
id: domid,
|
||||
perms: XS_PERM_READ,
|
||||
},
|
||||
];
|
||||
|
||||
tx.mknod(&frontend_path, frontend_perms).await?;
|
||||
for (p, value) in &frontend_items {
|
||||
let path = format!("{}/{}", frontend_path, *p);
|
||||
tx.write_string(&path, value).await?;
|
||||
if !console_zero {
|
||||
tx.set_perms(&path, frontend_perms).await?;
|
||||
}
|
||||
}
|
||||
tx.mknod(&backend_path, backend_perms).await?;
|
||||
for (p, value) in &backend_items {
|
||||
let path = format!("{}/{}", backend_path, *p);
|
||||
tx.write_string(&path, value).await?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn destroy(&self, domid: u32) -> Result<()> {
|
||||
if let Err(err) = self.destroy_store(domid).await {
|
||||
warn!("failed to destroy store for domain {}: {}", domid, err);
|
||||
}
|
||||
self.call.destroy_domain(domid).await?;
|
||||
let _ = self.destroy_store(domid).await;
|
||||
self.domain_manager.destroy(domid).await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
|
||||
573
crates/xen/xenclient/src/tx.rs
Normal file
573
crates/xen/xenclient/src/tx.rs
Normal file
@ -0,0 +1,573 @@
|
||||
use indexmap::IndexMap;
|
||||
use xencall::{sys::DOMCTL_DEV_RDM_RELAXED, XenCall};
|
||||
use xenplatform::{
|
||||
domain::{BaseDomainConfig, CreatedDomain},
|
||||
sys::XEN_PAGE_SHIFT,
|
||||
};
|
||||
use xenstore::{
|
||||
XsPermission, XsdClient, XsdInterface, XsdTransaction, XS_PERM_NONE, XS_PERM_READ,
|
||||
XS_PERM_READ_WRITE,
|
||||
};
|
||||
|
||||
use crate::{
|
||||
error::{Error, Result},
|
||||
pci::XenPciBackend,
|
||||
DomainChannel, DomainDisk, DomainFilesystem, DomainNetworkInterface, DomainPciDevice,
|
||||
DomainPciRdmReservePolicy,
|
||||
};
|
||||
|
||||
pub struct ClientTransaction {
|
||||
tx: XsdTransaction,
|
||||
abort: bool,
|
||||
domid: u32,
|
||||
dom_path: String,
|
||||
backend_domid: u32,
|
||||
backend_dom_path: String,
|
||||
}
|
||||
|
||||
impl ClientTransaction {
|
||||
pub async fn new(store: &XsdClient, domid: u32, backend_domid: u32) -> Result<Self> {
|
||||
let backend_dom_path = store.get_domain_path(0).await?;
|
||||
let dom_path = store.get_domain_path(domid).await?;
|
||||
Ok(ClientTransaction {
|
||||
tx: store.transaction().await?,
|
||||
abort: true,
|
||||
domid,
|
||||
dom_path,
|
||||
backend_domid,
|
||||
backend_dom_path,
|
||||
})
|
||||
}
|
||||
|
||||
pub async fn add_domain_declaration(
|
||||
&self,
|
||||
name: impl AsRef<str>,
|
||||
base: &BaseDomainConfig,
|
||||
created: &CreatedDomain,
|
||||
) -> Result<()> {
|
||||
let vm_path = format!("/vm/{}", base.uuid);
|
||||
let ro_perm = &[
|
||||
XsPermission {
|
||||
id: 0,
|
||||
perms: XS_PERM_NONE,
|
||||
},
|
||||
XsPermission {
|
||||
id: self.domid,
|
||||
perms: XS_PERM_READ,
|
||||
},
|
||||
];
|
||||
|
||||
let no_perm = &[XsPermission {
|
||||
id: 0,
|
||||
perms: XS_PERM_NONE,
|
||||
}];
|
||||
|
||||
let rw_perm = &[XsPermission {
|
||||
id: self.domid,
|
||||
perms: XS_PERM_READ_WRITE,
|
||||
}];
|
||||
|
||||
self.tx.rm(&self.dom_path).await?;
|
||||
self.tx.mknod(&self.dom_path, ro_perm).await?;
|
||||
|
||||
self.tx.rm(&vm_path).await?;
|
||||
self.tx.mknod(&vm_path, ro_perm).await?;
|
||||
|
||||
self.tx.mknod(&vm_path, no_perm).await?;
|
||||
self.tx
|
||||
.mknod(format!("{}/device", vm_path).as_str(), no_perm)
|
||||
.await?;
|
||||
|
||||
self.tx
|
||||
.write_string(format!("{}/vm", self.dom_path).as_str(), &vm_path)
|
||||
.await?;
|
||||
|
||||
self.tx
|
||||
.mknod(format!("{}/cpu", self.dom_path).as_str(), ro_perm)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(format!("{}/memory", self.dom_path).as_str(), ro_perm)
|
||||
.await?;
|
||||
|
||||
self.tx
|
||||
.mknod(format!("{}/control", self.dom_path).as_str(), ro_perm)
|
||||
.await?;
|
||||
|
||||
self.tx
|
||||
.mknod(
|
||||
format!("{}/control/shutdown", self.dom_path).as_str(),
|
||||
rw_perm,
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(
|
||||
format!("{}/control/feature-poweroff", self.dom_path).as_str(),
|
||||
rw_perm,
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(
|
||||
format!("{}/control/feature-reboot", self.dom_path).as_str(),
|
||||
rw_perm,
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(
|
||||
format!("{}/control/feature-suspend", self.dom_path).as_str(),
|
||||
rw_perm,
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(format!("{}/control/sysrq", self.dom_path).as_str(), rw_perm)
|
||||
.await?;
|
||||
|
||||
self.tx
|
||||
.mknod(format!("{}/data", self.dom_path).as_str(), rw_perm)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(format!("{}/drivers", self.dom_path).as_str(), rw_perm)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(format!("{}/feature", self.dom_path).as_str(), rw_perm)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(format!("{}/attr", self.dom_path).as_str(), rw_perm)
|
||||
.await?;
|
||||
self.tx
|
||||
.mknod(format!("{}/error", self.dom_path).as_str(), rw_perm)
|
||||
.await?;
|
||||
|
||||
self.tx
|
||||
.write_string(format!("{}/uuid", vm_path).as_str(), &base.uuid.to_string())
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(format!("{}/name", self.dom_path).as_str(), name.as_ref())
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(format!("{}/name", vm_path).as_str(), name.as_ref())
|
||||
.await?;
|
||||
|
||||
self.tx
|
||||
.write_string(format!("{}/image/os_type", vm_path).as_str(), "linux")
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(format!("{}/image/cmdline", vm_path).as_str(), &base.cmdline)
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/memory/static-max", self.dom_path).as_str(),
|
||||
&(base.mem_mb * 1024).to_string(),
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/memory/target", self.dom_path).as_str(),
|
||||
&(base.mem_mb * 1024).to_string(),
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(format!("{}/memory/videoram", self.dom_path).as_str(), "0")
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/domid", self.dom_path).as_str(),
|
||||
&created.domid.to_string(),
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(format!("{}/type", self.dom_path).as_str(), "PV")
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/store/port", self.dom_path).as_str(),
|
||||
&created.store_evtchn.to_string(),
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/store/ring-ref", self.dom_path).as_str(),
|
||||
&created.store_mfn.to_string(),
|
||||
)
|
||||
.await?;
|
||||
for i in 0..base.max_vcpus {
|
||||
let path = format!("{}/cpu/{}", self.dom_path, i);
|
||||
self.tx.mkdir(&path).await?;
|
||||
self.tx.set_perms(&path, ro_perm).await?;
|
||||
let path = format!("{}/cpu/{}/availability", self.dom_path, i);
|
||||
self.tx.write_string(&path, "online").await?;
|
||||
self.tx.set_perms(&path, ro_perm).await?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn write_key(&self, key: impl AsRef<str>, value: impl AsRef<str>) -> Result<()> {
|
||||
self.tx
|
||||
.write_string(
|
||||
&format!("{}/{}", self.dom_path, key.as_ref()),
|
||||
value.as_ref(),
|
||||
)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn add_rw_path(&self, key: impl AsRef<str>) -> Result<()> {
|
||||
let rw_perm = &[XsPermission {
|
||||
id: self.domid,
|
||||
perms: XS_PERM_READ_WRITE,
|
||||
}];
|
||||
|
||||
self.tx
|
||||
.mknod(&format!("{}/{}", self.dom_path, key.as_ref()), rw_perm)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn add_device(
|
||||
&self,
|
||||
typ: impl AsRef<str>,
|
||||
id: u64,
|
||||
frontend_items: Vec<(&str, String)>,
|
||||
backend_items: Vec<(&str, String)>,
|
||||
) -> Result<()> {
|
||||
let console_zero = typ.as_ref() == "console" && id == 0;
|
||||
|
||||
let frontend_path = if console_zero {
|
||||
format!("{}/console", self.dom_path)
|
||||
} else {
|
||||
format!("{}/device/{}/{}", self.dom_path, typ.as_ref(), id)
|
||||
};
|
||||
let backend_path = format!(
|
||||
"{}/backend/{}/{}/{}",
|
||||
self.backend_dom_path,
|
||||
typ.as_ref(),
|
||||
self.domid,
|
||||
id
|
||||
);
|
||||
|
||||
let mut backend_items: Vec<(&str, String)> = backend_items.clone();
|
||||
let mut frontend_items: Vec<(&str, String)> = frontend_items.clone();
|
||||
backend_items.push(("frontend", frontend_path.clone()));
|
||||
frontend_items.push(("backend", backend_path.clone()));
|
||||
let frontend_perms = &[
|
||||
XsPermission {
|
||||
id: self.domid,
|
||||
perms: XS_PERM_NONE,
|
||||
},
|
||||
XsPermission {
|
||||
id: self.backend_domid,
|
||||
perms: XS_PERM_READ,
|
||||
},
|
||||
];
|
||||
|
||||
let backend_perms = &[
|
||||
XsPermission {
|
||||
id: self.backend_domid,
|
||||
perms: XS_PERM_NONE,
|
||||
},
|
||||
XsPermission {
|
||||
id: self.domid,
|
||||
perms: XS_PERM_READ,
|
||||
},
|
||||
];
|
||||
|
||||
self.tx.mknod(&frontend_path, frontend_perms).await?;
|
||||
for (p, value) in &frontend_items {
|
||||
let path = format!("{}/{}", frontend_path, *p);
|
||||
self.tx.write_string(&path, value).await?;
|
||||
if !console_zero {
|
||||
self.tx.set_perms(&path, frontend_perms).await?;
|
||||
}
|
||||
}
|
||||
self.tx.mknod(&backend_path, backend_perms).await?;
|
||||
for (p, value) in &backend_items {
|
||||
let path = format!("{}/{}", backend_path, *p);
|
||||
self.tx.write_string(&path, value).await?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn add_vbd_device(&self, index: usize, disk: &DomainDisk) -> Result<()> {
|
||||
let id = (202 << 8) | (index << 4) as u64;
|
||||
let backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", self.domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("removable", "0".to_string()),
|
||||
("bootable", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("dev", disk.vdev.to_string()),
|
||||
("type", "phy".to_string()),
|
||||
("mode", if disk.writable { "w" } else { "r" }.to_string()),
|
||||
("device-type", "disk".to_string()),
|
||||
("discard-enable", "0".to_string()),
|
||||
("specification", "xen".to_string()),
|
||||
("physical-device-path", disk.block.path.to_string()),
|
||||
(
|
||||
"physical-device",
|
||||
format!("{:02x}:{:02x}", disk.block.major, disk.block.minor),
|
||||
),
|
||||
];
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", self.backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
("virtual-device", id.to_string()),
|
||||
("device-type", "disk".to_string()),
|
||||
("trusted", "1".to_string()),
|
||||
("protocol", "x86_64-abi".to_string()),
|
||||
];
|
||||
|
||||
self.add_device("vbd", id, frontend_items, backend_items)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn add_vif_device(&self, index: usize, vif: &DomainNetworkInterface) -> Result<()> {
|
||||
let id = 20 + index as u64;
|
||||
let mut backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", self.domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("mac", vif.mac.to_string()),
|
||||
("mtu", vif.mtu.to_string()),
|
||||
("type", "vif".to_string()),
|
||||
("handle", id.to_string()),
|
||||
];
|
||||
|
||||
if vif.bridge.is_some() {
|
||||
backend_items.extend_from_slice(&[("bridge", vif.bridge.clone().unwrap())]);
|
||||
}
|
||||
|
||||
if vif.script.is_some() {
|
||||
backend_items.extend_from_slice(&[
|
||||
("script", vif.script.clone().unwrap()),
|
||||
("hotplug-status", "".to_string()),
|
||||
]);
|
||||
} else {
|
||||
backend_items.extend_from_slice(&[
|
||||
("script", "".to_string()),
|
||||
("hotplug-status", "connected".to_string()),
|
||||
]);
|
||||
}
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", self.backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
("mac", vif.mac.to_string()),
|
||||
("trusted", "1".to_string()),
|
||||
("mtu", vif.mtu.to_string()),
|
||||
];
|
||||
|
||||
self.add_device("vif", id, frontend_items, backend_items)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn add_9pfs_device(&self, index: usize, filesystem: &DomainFilesystem) -> Result<()> {
|
||||
let id = 90 + index as u64;
|
||||
let backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", self.domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("path", filesystem.path.to_string()),
|
||||
("security-model", "none".to_string()),
|
||||
];
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", self.backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
("tag", filesystem.tag.to_string()),
|
||||
];
|
||||
|
||||
self.add_device("9pfs", id, frontend_items, backend_items)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn add_channel_device(
|
||||
&self,
|
||||
domain: &CreatedDomain,
|
||||
index: usize,
|
||||
channel: &DomainChannel,
|
||||
) -> Result<()> {
|
||||
let port = domain.console_evtchn;
|
||||
let ring = domain.console_mfn;
|
||||
|
||||
let mut backend_items = vec![
|
||||
("frontend-id", self.domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("protocol", "vt100".to_string()),
|
||||
];
|
||||
|
||||
let mut frontend_items = vec![
|
||||
("backend-id", self.backend_domid.to_string()),
|
||||
("limit", "1048576".to_string()),
|
||||
("output", "pty".to_string()),
|
||||
("tty", "".to_string()),
|
||||
];
|
||||
|
||||
frontend_items.push(("type", channel.typ.clone()));
|
||||
backend_items.push(("type", channel.typ.clone()));
|
||||
|
||||
if index == 0 {
|
||||
if channel.typ != "xenconsoled" {
|
||||
frontend_items.push(("state", "1".to_string()));
|
||||
}
|
||||
|
||||
frontend_items
|
||||
.extend_from_slice(&[("port", port.to_string()), ("ring-ref", ring.to_string())]);
|
||||
} else {
|
||||
frontend_items.extend_from_slice(&[
|
||||
("state", "1".to_string()),
|
||||
("protocol", "vt100".to_string()),
|
||||
]);
|
||||
}
|
||||
|
||||
if channel.initialized {
|
||||
backend_items.push(("state", "4".to_string()));
|
||||
} else {
|
||||
backend_items.push(("state", "1".to_string()));
|
||||
}
|
||||
|
||||
self.add_device("console", index as u64, frontend_items, backend_items)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn add_pci_device(
|
||||
&self,
|
||||
call: &XenCall,
|
||||
index: usize,
|
||||
device_count: usize,
|
||||
device: &DomainPciDevice,
|
||||
) -> Result<()> {
|
||||
let backend = XenPciBackend::new();
|
||||
if !backend.is_assigned(&device.bdf).await? {
|
||||
return Err(Error::PciDeviceNotAssignable(device.bdf));
|
||||
}
|
||||
let resources = backend.read_resources(&device.bdf).await?;
|
||||
for resource in resources {
|
||||
if resource.is_bar_io() {
|
||||
call.ioport_permission(
|
||||
self.domid,
|
||||
resource.start as u32,
|
||||
resource.size() as u32,
|
||||
true,
|
||||
)
|
||||
.await?;
|
||||
} else {
|
||||
call.iomem_permission(
|
||||
self.domid,
|
||||
resource.start >> XEN_PAGE_SHIFT,
|
||||
(resource.size() + (XEN_PAGE_SHIFT - 1)) >> XEN_PAGE_SHIFT,
|
||||
true,
|
||||
)
|
||||
.await?;
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(irq) = backend.read_irq(&device.bdf).await? {
|
||||
let irq = call.map_pirq(self.domid, irq as isize, None).await?;
|
||||
call.irq_permission(self.domid, irq, true).await?;
|
||||
}
|
||||
|
||||
backend.reset(&device.bdf).await?;
|
||||
|
||||
call.assign_device(
|
||||
self.domid,
|
||||
device.bdf.encode(),
|
||||
if device.rdm_reserve_policy == DomainPciRdmReservePolicy::Relaxed {
|
||||
DOMCTL_DEV_RDM_RELAXED
|
||||
} else {
|
||||
0
|
||||
},
|
||||
)
|
||||
.await?;
|
||||
|
||||
if device.permissive {
|
||||
backend.enable_permissive(&device.bdf).await?;
|
||||
}
|
||||
|
||||
let id = 60;
|
||||
|
||||
if index == 0 {
|
||||
let backend_items: Vec<(&str, String)> = vec![
|
||||
("frontend-id", self.domid.to_string()),
|
||||
("online", "1".to_string()),
|
||||
("state", "1".to_string()),
|
||||
("num_devs", device_count.to_string()),
|
||||
];
|
||||
|
||||
let frontend_items: Vec<(&str, String)> = vec![
|
||||
("backend-id", self.backend_domid.to_string()),
|
||||
("state", "1".to_string()),
|
||||
];
|
||||
|
||||
self.add_device("pci", id, frontend_items, backend_items)
|
||||
.await?;
|
||||
}
|
||||
|
||||
let backend_path = format!(
|
||||
"{}/backend/{}/{}/{}",
|
||||
self.backend_dom_path, "pci", self.domid, id
|
||||
);
|
||||
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/key-{}", backend_path, index),
|
||||
&device.bdf.to_string(),
|
||||
)
|
||||
.await?;
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/dev-{}", backend_path, index),
|
||||
&device.bdf.to_string(),
|
||||
)
|
||||
.await?;
|
||||
|
||||
if let Some(vdefn) = device.bdf.vdefn {
|
||||
self.tx
|
||||
.write_string(
|
||||
format!("{}/vdefn-{}", backend_path, index),
|
||||
&format!("{:#x}", vdefn),
|
||||
)
|
||||
.await?;
|
||||
}
|
||||
|
||||
let mut options = IndexMap::new();
|
||||
options.insert("permissive", if device.permissive { "1" } else { "0" });
|
||||
options.insert("rdm_policy", device.rdm_reserve_policy.to_option_str());
|
||||
options.insert("msitranslate", if device.msi_translate { "1" } else { "0" });
|
||||
options.insert(
|
||||
"power_mgmt",
|
||||
if device.power_management { "1" } else { "0" },
|
||||
);
|
||||
let options = options
|
||||
.into_iter()
|
||||
.map(|(key, value)| format!("{}={}", key, value))
|
||||
.collect::<Vec<_>>()
|
||||
.join(",");
|
||||
|
||||
self.tx
|
||||
.write_string(format!("{}/opts-{}", backend_path, index), &options)
|
||||
.await?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub async fn commit(mut self) -> Result<()> {
|
||||
self.abort = false;
|
||||
self.tx.commit().await?;
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for ClientTransaction {
|
||||
fn drop(&mut self) {
|
||||
if !self.abort {
|
||||
return;
|
||||
}
|
||||
let tx = self.tx.clone();
|
||||
tokio::task::spawn(async move {
|
||||
let _ = tx.abort().await;
|
||||
});
|
||||
}
|
||||
}
|
||||
@ -43,7 +43,8 @@ pub struct BootDomain {
|
||||
pub store_evtchn: u32,
|
||||
pub store_mfn: u64,
|
||||
pub initrd_segment: DomainSegment,
|
||||
pub consoles: Vec<(u32, u64)>,
|
||||
pub console_evtchn: u32,
|
||||
pub console_mfn: u64,
|
||||
pub cmdline: String,
|
||||
}
|
||||
|
||||
@ -177,7 +178,8 @@ impl<I: BootImageLoader, P: BootSetupPlatform> BootSetup<I, P> {
|
||||
target_pages: total_pages,
|
||||
page_size: self.platform.page_size(),
|
||||
image_info,
|
||||
consoles: Vec::new(),
|
||||
console_evtchn: 0,
|
||||
console_mfn: 0,
|
||||
max_vcpus,
|
||||
phys: PhysicalPages::new(self.call.clone(), self.domid, self.platform.page_shift()),
|
||||
initrd_segment: DomainSegment::default(),
|
||||
@ -261,7 +263,7 @@ impl<I: BootImageLoader, P: BootSetupPlatform> BootSetup<I, P> {
|
||||
|
||||
#[async_trait::async_trait]
|
||||
pub trait BootSetupPlatform: Clone {
|
||||
fn create_domain(&self, needs_passthrough: bool) -> CreateDomain;
|
||||
fn create_domain(&self, enable_iommu: bool) -> CreateDomain;
|
||||
fn page_size(&self) -> u64;
|
||||
fn page_shift(&self) -> u64;
|
||||
fn needs_early_kernel(&self) -> bool;
|
||||
|
||||
80
crates/xen/xenplatform/src/domain.rs
Normal file
80
crates/xen/xenplatform/src/domain.rs
Normal file
@ -0,0 +1,80 @@
|
||||
use std::sync::Arc;
|
||||
|
||||
use crate::{
|
||||
boot::{BootSetup, BootSetupPlatform},
|
||||
elfloader::ElfImageLoader,
|
||||
};
|
||||
use uuid::Uuid;
|
||||
use xencall::XenCall;
|
||||
|
||||
use crate::error::Result;
|
||||
|
||||
pub struct BaseDomainManager<P: BootSetupPlatform> {
|
||||
call: XenCall,
|
||||
pub platform: Arc<P>,
|
||||
}
|
||||
|
||||
impl<P: BootSetupPlatform> BaseDomainManager<P> {
|
||||
pub async fn new(call: XenCall, platform: P) -> Result<BaseDomainManager<P>> {
|
||||
Ok(BaseDomainManager {
|
||||
call,
|
||||
platform: Arc::new(platform),
|
||||
})
|
||||
}
|
||||
|
||||
pub async fn create(&self, config: BaseDomainConfig) -> Result<CreatedDomain> {
|
||||
let mut domain = self.platform.create_domain(config.enable_iommu);
|
||||
domain.handle = config.uuid.into_bytes();
|
||||
domain.max_vcpus = config.max_vcpus;
|
||||
let domid = self.call.create_domain(domain).await?;
|
||||
self.call.set_max_vcpus(domid, config.max_vcpus).await?;
|
||||
self.call
|
||||
.set_max_mem(domid, (config.mem_mb * 1024) + 2048)
|
||||
.await?;
|
||||
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);
|
||||
let mut domain = boot
|
||||
.initialize(
|
||||
&config.initrd,
|
||||
config.mem_mb,
|
||||
config.max_vcpus,
|
||||
&config.cmdline,
|
||||
)
|
||||
.await?;
|
||||
boot.boot(&mut domain).await?;
|
||||
Ok(CreatedDomain {
|
||||
domid,
|
||||
store_evtchn: domain.store_evtchn,
|
||||
store_mfn: domain.store_mfn,
|
||||
console_evtchn: domain.console_evtchn,
|
||||
console_mfn: domain.console_mfn,
|
||||
})
|
||||
}
|
||||
|
||||
pub async fn destroy(&self, domid: u32) -> Result<()> {
|
||||
self.call.destroy_domain(domid).await?;
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
pub struct BaseDomainConfig {
|
||||
pub uuid: Uuid,
|
||||
pub owner_domid: u32,
|
||||
pub max_vcpus: u32,
|
||||
pub mem_mb: u64,
|
||||
pub kernel: Vec<u8>,
|
||||
pub initrd: Vec<u8>,
|
||||
pub cmdline: String,
|
||||
pub enable_iommu: bool,
|
||||
}
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
pub struct CreatedDomain {
|
||||
pub domid: u32,
|
||||
pub store_evtchn: u32,
|
||||
pub store_mfn: u64,
|
||||
pub console_evtchn: u32,
|
||||
pub console_mfn: u64,
|
||||
}
|
||||
@ -6,6 +6,7 @@ pub mod sys;
|
||||
|
||||
use crate::error::Error;
|
||||
|
||||
pub mod domain;
|
||||
pub mod unsupported;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub mod x86pv;
|
||||
|
||||
@ -434,9 +434,9 @@ impl X86PvPlatform {
|
||||
|
||||
#[async_trait::async_trait]
|
||||
impl BootSetupPlatform for X86PvPlatform {
|
||||
fn create_domain(&self, needs_passthrough: bool) -> CreateDomain {
|
||||
fn create_domain(&self, enable_iommu: bool) -> CreateDomain {
|
||||
CreateDomain {
|
||||
flags: if needs_passthrough {
|
||||
flags: if enable_iommu {
|
||||
XEN_DOMCTL_CDF_IOMMU
|
||||
} else {
|
||||
0
|
||||
@ -718,9 +718,8 @@ impl BootSetupPlatform for X86PvPlatform {
|
||||
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]));
|
||||
domain.console_evtchn = evtchn;
|
||||
domain.console_mfn = 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()?);
|
||||
|
||||
@ -802,9 +801,8 @@ impl BootSetupPlatform for X86PvPlatform {
|
||||
(*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).console.mfn = domain.console_mfn;
|
||||
(*info).console.evtchn = domain.console_evtchn;
|
||||
(*info).mod_start = domain.initrd_segment.vstart;
|
||||
(*info).mod_len = domain.initrd_segment.size;
|
||||
for (i, c) in domain.cmdline.chars().enumerate() {
|
||||
@ -893,7 +891,7 @@ impl BootSetupPlatform for X86PvPlatform {
|
||||
.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 console_gfn = domain.console_mfn as usize;
|
||||
let xenstore_gfn = domain.phys.p2m[xenstore_segment.pfn as usize];
|
||||
let addr = domain
|
||||
.call
|
||||
|
||||
Loading…
Reference in New Issue
Block a user