[libvirt] [PATCH v4 18/20] qemu: start/stop the vhost-user-gpu external device
From: Marc-André Lureau <marcandre.lureau(a)redhat.com>
Each vhost-user-gpu needs its own helper gpu process.
Start/stop them, and apply the emulator cgroup controller.
Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com>
---
src/qemu/qemu_extdevice.c | 45 +++++++++++++++++++++++++++++++++------
1 file changed, 39 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_extdevice.c b/src/qemu/qemu_extdevice.c
index 7855fa6770..abcaa9fca2 100644
--- a/src/qemu/qemu_extdevice.c
+++ b/src/qemu/qemu_extdevice.c
@@ -162,6 +162,16 @@ qemuExtDevicesStart(virQEMUDriverPtr driver,
if (qemuExtDevicesInitPaths(driver, vm->def) < 0)
return -1;
+ for (i = 0; i < vm->def->nvideos; i++) {
+ virDomainVideoDefPtr video = vm->def->videos[i];
+
+ if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER) {
+ ret = qemuExtVhostUserGPUStart(driver, vm, video);
+ if (ret < 0)
+ return ret;
+ }
+ }
+
if (vm->def->tpm)
ret = qemuExtTPMStart(driver, vm, incomingMigration);
@@ -185,10 +195,17 @@ qemuExtDevicesStop(virQEMUDriverPtr driver,
virDomainDefPtr def = vm->def;
size_t i;
- if (qemuExtDevicesInitPaths(driver, vm->def) < 0)
+ if (qemuExtDevicesInitPaths(driver, def) < 0)
return;
- if (vm->def->tpm)
+ for (i = 0; i < def->nvideos; i++) {
+ virDomainVideoDefPtr video = def->videos[i];
+
+ if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER)
+ qemuExtVhostUserGPUStop(driver, vm, video);
+ }
+
+ if (def->tpm)
qemuExtTPMStop(driver, vm);
for (i = 0; i < def->nnets; i++) {
@@ -204,6 +221,13 @@ qemuExtDevicesStop(virQEMUDriverPtr driver,
bool
qemuExtDevicesHasDevice(virDomainDefPtr def)
{
+ size_t i;
+
+ for (i = 0; i < def->nvideos; i++) {
+ if (def->videos[i]->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER)
+ return true;
+ }
+
if (def->tpm && def->tpm->type == VIR_DOMAIN_TPM_TYPE_EMULATOR)
return true;
@@ -216,10 +240,19 @@ qemuExtDevicesSetupCgroup(virQEMUDriverPtr driver,
virDomainDefPtr def,
virCgroupPtr cgroup)
{
- int ret = 0;
+ size_t i;
- if (def->tpm)
- ret = qemuExtTPMSetupCgroup(driver, def, cgroup);
+ for (i = 0; i < def->nvideos; i++) {
+ virDomainVideoDefPtr video = def->videos[i];
- return ret;
+ if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER &&
+ qemuExtVhostUserGPUSetupCgroup(driver, def, video, cgroup) < 0)
+ return -1;
+ }
+
+ if (def->tpm &&
+ qemuExtTPMSetupCgroup(driver, def, cgroup) < 0)
+ return -1;
+
+ return 0;
}
--
2.23.0