[libvirt] [PATCH v5 18/20] 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; Reviewed-by: Cole Robinson <crobinso(a)redhat.com&gt; --- 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