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vmm: Add support for hotplugging a vDPA device

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Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2022-03-11 11:32:53 +01:00
parent c73c6039c3
commit 3fea5f5396
8 changed files with 175 additions and 9 deletions
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22
vmm/src/api/mod.rs
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@@ -34,9 +34,9 @@ pub use self::http::start_http_path_thread;
pub mod http;
pub mod http_endpoint;
use crate::config::UserDeviceConfig;
use crate::config::{
DeviceConfig, DiskConfig, FsConfig, NetConfig, PmemConfig, RestoreConfig, VmConfig, VsockConfig,
DeviceConfig, DiskConfig, FsConfig, NetConfig, PmemConfig, RestoreConfig, UserDeviceConfig,
VdpaConfig, VmConfig, VsockConfig,
};
use crate::device_tree::DeviceTree;
use crate::vm::{Error as VmError, VmState};
@@ -134,6 +134,9 @@ pub enum ApiError {
/// The network device could not be added to the VM.
VmAddNet(VmError),
/// The vDPA device could not be added to the VM.
VmAddVdpa(VmError),
/// The vsock device could not be added to the VM.
VmAddVsock(VmError),
@@ -294,6 +297,9 @@ pub enum ApiRequest {
/// Add a network device to the VM.
VmAddNet(Arc<NetConfig>, Sender<ApiResponse>),
/// Add a vDPA device to the VM.
VmAddVdpa(Arc<VdpaConfig>, Sender<ApiResponse>),
/// Add a vsock device to the VM.
VmAddVsock(Arc<VsockConfig>, Sender<ApiResponse>),
@@ -371,6 +377,9 @@ pub enum VmAction {
/// Add network
AddNet(Arc<NetConfig>),
/// Add vdpa
AddVdpa(Arc<VdpaConfig>),
/// Add vsock
AddVsock(Arc<VsockConfig>),
@@ -423,6 +432,7 @@ fn vm_action(
AddFs(v) => ApiRequest::VmAddFs(v, response_sender),
AddPmem(v) => ApiRequest::VmAddPmem(v, response_sender),
AddNet(v) => ApiRequest::VmAddNet(v, response_sender),
AddVdpa(v) => ApiRequest::VmAddVdpa(v, response_sender),
AddVsock(v) => ApiRequest::VmAddVsock(v, response_sender),
AddUserDevice(v) => ApiRequest::VmAddUserDevice(v, response_sender),
RemoveDevice(v) => ApiRequest::VmRemoveDevice(v, response_sender),
@@ -634,6 +644,14 @@ pub fn vm_add_net(
vm_action(api_evt, api_sender, VmAction::AddNet(data))
}
pub fn vm_add_vdpa(
api_evt: EventFd,
api_sender: Sender<ApiRequest>,
data: Arc<VdpaConfig>,
) -> ApiResult<Option<Body>> {
vm_action(api_evt, api_sender, VmAction::AddVdpa(data))
}
pub fn vm_add_vsock(
api_evt: EventFd,
api_sender: Sender<ApiRequest>,