[libvirt] [RFC PATCH 14/17] 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 | 47 ++++++++++++++++++++++++++++++++++-----
1 file changed, 42 insertions(+), 5 deletions(-)
diff --git a/src/qemu/qemu_extdevice.c b/src/qemu/qemu_extdevice.c
index d982922470..8ec703a9b0 100644
--- a/src/qemu/qemu_extdevice.c
+++ b/src/qemu/qemu_extdevice.c
@@ -25,6 +25,7 @@
#include "qemu_extdevice.h"
#include "qemu_domain.h"
#include "qemu_tpm.h"
+#include "qemu_vhost_user_gpu.h"
#include "viralloc.h"
#include "virlog.h"
@@ -132,11 +133,21 @@ qemuExtDevicesStart(virQEMUDriverPtr driver,
virDomainDefPtr def,
qemuDomainLogContextPtr logCtxt)
{
- int ret = 0;
+ int i, ret = 0;
if (qemuExtDevicesInitPaths(driver, def) < 0)
return -1;
+ for (i = 0; i < def->nvideos; i++) {
+ virDomainVideoDefPtr video = def->videos[i];
+
+ if (video->type == VIR_DOMAIN_VIDEO_TYPE_VHOST_USER) {
+ ret = qemuExtVhostUserGPUStart(driver, def, video, logCtxt);
+ if (ret < 0)
+ return ret;
+ }
+ }
+
if (def->tpm)
ret = qemuExtTPMStart(driver, def, logCtxt);
@@ -148,9 +159,19 @@ void
qemuExtDevicesStop(virQEMUDriverPtr driver,
virDomainDefPtr def)
{
+ int i;
+
if (qemuExtDevicesInitPaths(driver, def) < 0)
return;
+ for (i = 0; i < def->nvideos; i++) {
+ virDomainVideoDefPtr video = def->videos[i];
+
+ if (video->type == VIR_DOMAIN_VIDEO_TYPE_VHOST_USER) {
+ qemuExtVhostUserGPUStop(driver, def, video);
+ }
+ }
+
if (def->tpm)
qemuExtTPMStop(driver, def);
}
@@ -159,6 +180,13 @@ qemuExtDevicesStop(virQEMUDriverPtr driver,
bool
qemuExtDevicesHasDevice(virDomainDefPtr def)
{
+ int i;
+
+ for (i = 0; i < def->nvideos; i++) {
+ if (def->videos[i]->type == VIR_DOMAIN_VIDEO_TYPE_VHOST_USER)
+ return true;
+ }
+
if (def->tpm && def->tpm->type == VIR_DOMAIN_TPM_TYPE_EMULATOR)
return true;
@@ -171,10 +199,19 @@ qemuExtDevicesSetupCgroup(virQEMUDriverPtr driver,
virDomainDefPtr def,
virCgroupPtr cgroup)
{
- int ret = 0;
+ int 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->type == VIR_DOMAIN_VIDEO_TYPE_VHOST_USER &&
+ qemuExtVhostUserGPUSetupCgroup(driver, def, video, cgroup) < 0)
+ return -1;
+ }
+
+ if (def->tpm &&
+ qemuExtTPMSetupCgroup(driver, def, cgroup) < 0)
+ return -1;
+
+ return 0;
}
--
2.18.0.129.ge3331758f1