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vmm: Add an identifier to the --rng device

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This will be later used to identify each device used by the VM in order
to perform introspection and snapshot/restore properly.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2020-04-27 09:47:26 +02:00 committed by Rob Bradford
parent d71d52e9b0
commit 6802ef5406
1 changed files with 4 additions and 1 deletions
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5
vmm/src/device_manager.rs
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@ -77,6 +77,7 @@ const DISK_DEVICE_NAME_PREFIX: &str = "disk";
const FS_DEVICE_NAME_PREFIX: &str = "fs"; const FS_DEVICE_NAME_PREFIX: &str = "fs";
const NET_DEVICE_NAME_PREFIX: &str = "net"; const NET_DEVICE_NAME_PREFIX: &str = "net";
const PMEM_DEVICE_NAME_PREFIX: &str = "pmem"; const PMEM_DEVICE_NAME_PREFIX: &str = "pmem";
const RNG_DEVICE_NAME: &str = "rng";
const VSOCK_DEVICE_NAME_PREFIX: &str = "vsock"; const VSOCK_DEVICE_NAME_PREFIX: &str = "vsock";
/// Errors associated with device manager /// Errors associated with device manager
@ -1415,6 +1416,8 @@ impl DeviceManager {
// Add virtio-rng if required // Add virtio-rng if required
let rng_config = self.config.lock().unwrap().rng.clone(); let rng_config = self.config.lock().unwrap().rng.clone();
if let Some(rng_path) = rng_config.src.to_str() { if let Some(rng_path) = rng_config.src.to_str() {
let id = String::from(RNG_DEVICE_NAME);
let virtio_rng_device = Arc::new(Mutex::new( let virtio_rng_device = Arc::new(Mutex::new(
vm_virtio::Rng::new(rng_path, rng_config.iommu) vm_virtio::Rng::new(rng_path, rng_config.iommu)
.map_err(DeviceManagerError::CreateVirtioRng)?, .map_err(DeviceManagerError::CreateVirtioRng)?,
@ -1422,7 +1425,7 @@ impl DeviceManager {
devices.push(( devices.push((
Arc::clone(&virtio_rng_device) as VirtioDeviceArc, Arc::clone(&virtio_rng_device) as VirtioDeviceArc,
rng_config.iommu, rng_config.iommu,
None, Some(id),
)); ));
self.add_migratable_device( self.add_migratable_device(