[libvirt] [PATCH v2 13/16] qemu: start/stop the vhost-user-gpu external device

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; 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&gt; Signed-off-by: Cole Robinson <crobinso(a)redhat.com&gt; --- src/qemu/qemu_extdevice.c | 46 +++++++++++++++++++++++++++++++++++---- 1 file changed, 42 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_extdevice.c b/src/qemu/qemu_extdevice.c index 5c55aba006..3dbcec3546 100644 --- a/src/qemu/qemu_extdevice.c +++ b/src/qemu/qemu_extdevice.c @@ -161,10 +161,21 @@ qemuExtDevicesStart(virQEMUDriverPtr driver, bool incomingMigration) { int ret = 0; + size_t i; if (qemuExtDevicesInitPaths(driver, vm->def) < 0) return -1; + for (i = 0; i < vm->def->nvideos; i++) { + virDomainVideoDefPtr video = vm->def->videos[i]; + + if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO && video->vhostuser) { + ret = qemuExtVhostUserGPUStart(driver, vm, video, logCtxt); + if (ret < 0) + return ret; + } + } + if (vm->def->tpm) ret = qemuExtTPMStart(driver, vm, logCtxt, incomingMigration); @@ -176,9 +187,18 @@ void qemuExtDevicesStop(virQEMUDriverPtr driver, virDomainObjPtr vm) { + size_t i; + if (qemuExtDevicesInitPaths(driver, vm->def) < 0) return; + for (i = 0; i < vm->def->nvideos; i++) { + virDomainVideoDefPtr video = vm->def->videos[i]; + + if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO && video->vhostuser) + qemuExtVhostUserGPUStop(driver, vm, video); + } + if (vm->def->tpm) qemuExtTPMStop(driver, vm); } @@ -187,6 +207,14 @@ qemuExtDevicesStop(virQEMUDriverPtr driver, bool qemuExtDevicesHasDevice(virDomainDefPtr def) { + size_t i; + + for (i = 0; i < def->nvideos; i++) { + if (def->videos[i]->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO && + def->videos[i]->vhostuser) + return true; + } + if (def->tpm && def->tpm->type == VIR_DOMAIN_TPM_TYPE_EMULATOR) return true; @@ -199,10 +227,20 @@ 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->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO && + video->vhostuser && + qemuExtVhostUserGPUSetupCgroup(driver, def, video, cgroup) < 0) + return -1; + } + + if (def->tpm && + qemuExtTPMSetupCgroup(driver, def, cgroup) < 0) + return -1; + + return 0; } -- 2.21.0