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vmm: Create vsock backend

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This commit relies on the new vsock::unix module to create the backend
that will be used from the virtio-vsock device.

The concept of backend is interesting here as it would allow for a vhost
kernel backend to be plugged if that was needed someday.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2019-09-04 14:19:16 -07:00
parent 434a5d0edf
commit 475e487ac3
5 changed files with 41 additions and 9 deletions
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16
vmm/src/device_manager.rs
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@@ -76,6 +76,12 @@ pub enum DeviceManagerError {
/// Cannot create virtio-vsock device
CreateVirtioVsock(io::Error),
/// Failed converting Path to &str for the virtio-vsock device.
CreateVsockConvertPath,
/// Cannot create virtio-vsock backend
CreateVsockBackend(vm_virtio::vsock::VsockUnixError),
/// Failed parsing disk image format
DetectImageType(qcow::Error),
@@ -801,7 +807,15 @@ impl DeviceManager {
// Add vsock if required
if let Some(vsock_list_cfg) = &vm_info.vm_cfg.vsock {
for vsock_cfg in vsock_list_cfg.iter() {
let vsock_device = vm_virtio::Vsock::new(vsock_cfg.cid)
let socket_path = vsock_cfg
.sock
.to_str()
.ok_or(DeviceManagerError::CreateVsockConvertPath)?;
let backend =
vm_virtio::vsock::VsockUnixBackend::new(vsock_cfg.cid, socket_path.to_string())
.map_err(DeviceManagerError::CreateVsockBackend)?;
let vsock_device = vm_virtio::Vsock::new(vsock_cfg.cid, backend)
.map_err(DeviceManagerError::CreateVirtioVsock)?;
DeviceManager::add_virtio_pci_device(