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vmm: Add support for hotplugging user devices

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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2021-07-30 14:48:58 +00:00
parent f99462add4
commit 53b2e19934
6 changed files with 114 additions and 8 deletions
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vmm/src/lib.rs
+24 -1
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@@ -20,7 +20,8 @@ use crate::api::{
VmSendMigrationData, VmmPingResponse,
};
use crate::config::{
DeviceConfig, DiskConfig, FsConfig, NetConfig, PmemConfig, RestoreConfig, VmConfig, VsockConfig,
DeviceConfig, DiskConfig, FsConfig, NetConfig, PmemConfig, RestoreConfig, UserDeviceConfig,
VmConfig, VsockConfig,
};
use crate::migration::{get_vm_snapshot, recv_vm_snapshot};
use crate::seccomp_filters::{get_seccomp_filter, Thread};
@@ -645,6 +646,21 @@ impl Vmm {
}
}
fn vm_add_user_device(
&mut self,
device_cfg: UserDeviceConfig,
) -> result::Result<Vec<u8>, VmError> {
if let Some(ref mut vm) = self.vm {
let info = vm.add_user_device(device_cfg).map_err(|e| {
error!("Error when adding new user device to the VM: {:?}", e);
e
})?;
serde_json::to_vec(&info).map_err(VmError::SerializeJson)
} else {
Err(VmError::VmNotRunning)
}
}
fn vm_remove_device(&mut self, id: String) -> result::Result<(), VmError> {
if let Some(ref mut vm) = self.vm {
if let Err(e) = vm.remove_device(id) {
@@ -1414,6 +1430,13 @@ impl Vmm {
.map(ApiResponsePayload::VmAction);
sender.send(response).map_err(Error::ApiResponseSend)?;
}
ApiRequest::VmAddUserDevice(add_device_data, sender) => {
let response = self
.vm_add_user_device(add_device_data.as_ref().clone())
.map_err(ApiError::VmAddUserDevice)
.map(ApiResponsePayload::VmAction);
sender.send(response).map_err(Error::ApiResponseSend)?;
}
ApiRequest::VmRemoveDevice(remove_device_data, sender) => {
let response = self
.vm_remove_device(remove_device_data.id.clone())