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vmm: Implement VM pause

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In order to pause a VM, we signal all the vCPU threads to get them out
of vmx non-root. Once out, the vCPU thread will check for a an atomic
pause boolean. If it's set to true, then the thread will park until
being resumed.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz
2019-10-10 17:16:58 +02:00
committed by Sebastien Boeuf
parent 80c3fd922a
commit 4ac0cb9cff
6 changed files with 88 additions and 2 deletions
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9
vmm/src/api/http_endpoint.rs
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@@ -5,8 +5,8 @@
use crate::api::http::EndpointHandler;
use crate::api::{
vm_boot, vm_create, vm_delete, vm_info, vm_reboot, vm_shutdown, vmm_shutdown, ApiError,
ApiRequest, ApiResult, VmAction, VmConfig,
vm_boot, vm_create, vm_delete, vm_info, vm_pause, vm_reboot, vm_shutdown, vmm_shutdown,
ApiError, ApiRequest, ApiResult, VmAction, VmConfig,
};
use micro_http::{Body, Method, Request, Response, StatusCode, Version};
use serde_json::Error as SerdeError;
@@ -29,6 +29,9 @@ pub enum HttpError {
/// Could not get the VM information
VmInfo(ApiError),
/// Could not pause the VM
VmPause(ApiError),
/// Could not shut a VM down
VmShutdown(ApiError),
@@ -103,6 +106,7 @@ impl VmActionHandler {
VmAction::Delete => vm_delete,
VmAction::Shutdown => vm_shutdown,
VmAction::Reboot => vm_reboot,
VmAction::Pause => vm_pause,
});
VmActionHandler { action_fn }
@@ -122,6 +126,7 @@ impl EndpointHandler for VmActionHandler {
ApiError::VmBoot(_) => HttpError::VmBoot(e),
ApiError::VmShutdown(_) => HttpError::VmShutdown(e),
ApiError::VmReboot(_) => HttpError::VmReboot(e),
ApiError::VmPause(_) => HttpError::VmPause(e),
_ => HttpError::VmAction(e),
}) {
Ok(_) => Response::new(Version::Http11, StatusCode::OK),