[libvirt] [PATCH v2 03/25] qemu: Move <memballoon> validation out of qemu_command.c

If we validate that memballoon is NONE|VIRTIO at parse time, we can drop similar checks elsewhere in the qemu driver Signed-off-by: Cole Robinson <crobinso(a)redhat.com&gt; --- src/qemu/qemu_command.c | 17 ---------------- src/qemu/qemu_domain.c | 36 +++++++++++++++++++++++++++++++++- src/qemu/qemu_domain_address.c | 10 ++++------ src/qemu/qemu_driver.c | 17 +++++++--------- src/qemu/qemu_process.c | 3 +-- 5 files changed, 47 insertions(+), 36 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 128cf331b3..2d05b4a93b 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -4046,20 +4046,9 @@ qemuBuildMemballoonCommandLine(virCommandPtr cmd, { virBuffer buf = VIR_BUFFER_INITIALIZER; - if (STRPREFIX(def->os.machine, "s390-virtio") && - virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_S390) && def->memballoon) - def->memballoon->model = VIR_DOMAIN_MEMBALLOON_MODEL_NONE; - if (!virDomainDefHasMemballoon(def)) return 0; - if (def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("Memory balloon device type '%s' is not supported by this version of qemu"), - virDomainMemballoonModelTypeToString(def->memballoon->model)); - return -1; - } - if (qemuBuildVirtioDevStr(&buf, "virtio-balloon", def->memballoon->info.type) < 0) { goto error; @@ -4070,12 +4059,6 @@ qemuBuildMemballoonCommandLine(virCommandPtr cmd, goto error; if (def->memballoon->autodeflate != VIR_TRISTATE_SWITCH_ABSENT) { - if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BALLOON_AUTODEFLATE)) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("deflate-on-oom is not supported by this QEMU binary")); - goto error; - } - virBufferAsprintf(&buf, ",deflate-on-oom=%s", virTristateSwitchTypeToString(def->memballoon->autodeflate)); } diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 1376819020..a0ab55d5db 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -3481,6 +3481,10 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def, def->memballoon = memballoon; } + if (STRPREFIX(def->os.machine, "s390-virtio") && + virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_S390) && def->memballoon) + def->memballoon->model = VIR_DOMAIN_MEMBALLOON_MODEL_NONE; + if (addDefaultUSBKBD && def->ngraphics > 0 && virDomainDefMaybeAddInput(def, @@ -5980,6 +5984,33 @@ qemuDomainDeviceDefValidateInput(const virDomainInputDef *input, } +static int +qemuDomainDeviceDefValidateMemballoon(const virDomainMemballoonDef *memballoon, + virQEMUCapsPtr qemuCaps) +{ + if (!memballoon || + memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_NONE) { + return 0; + } + + if (memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Memory balloon device type '%s' is not supported by this version of qemu"), + virDomainMemballoonModelTypeToString(memballoon->model)); + return -1; + } + + if (memballoon->autodeflate != VIR_TRISTATE_SWITCH_ABSENT && + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BALLOON_AUTODEFLATE)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("deflate-on-oom is not supported by this QEMU binary")); + return -1; + } + + return 0; +} + + static int qemuDomainDeviceDefValidateZPCIAddress(virDomainDeviceInfoPtr info, virQEMUCapsPtr qemuCaps) @@ -6088,11 +6119,14 @@ qemuDomainDeviceDefValidate(const virDomainDeviceDef *dev, ret = qemuDomainDeviceDefValidateInput(dev->data.input, def, qemuCaps); break; + case VIR_DOMAIN_DEVICE_MEMBALLOON: + ret = qemuDomainDeviceDefValidateMemballoon(dev->data.memballoon, qemuCaps); + break; + case VIR_DOMAIN_DEVICE_LEASE: case VIR_DOMAIN_DEVICE_FS: case VIR_DOMAIN_DEVICE_SOUND: case VIR_DOMAIN_DEVICE_HUB: - case VIR_DOMAIN_DEVICE_MEMBALLOON: case VIR_DOMAIN_DEVICE_NVRAM: case VIR_DOMAIN_DEVICE_SHMEM: case VIR_DOMAIN_DEVICE_MEMORY: diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index cb1e5f9e40..1802c36b86 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -358,8 +358,8 @@ qemuDomainPrimeVirtioDeviceAddresses(virDomainDefPtr def, def->hostdevs[i]->info->type = type; } - if (def->memballoon && - def->memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO && + /* All memballoon devices accepted by the qemu driver are virtio */ + if (virDomainDefHasMemballoon(def) && def->memballoon->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) def->memballoon->info.type = type; @@ -2268,11 +2268,9 @@ qemuDomainAssignDevicePCISlots(virDomainDefPtr def, goto error; } - /* VirtIO balloon */ - if (def->memballoon && - def->memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO && + /* memballoon. the qemu driver only accepts virtio memballoon devices */ + if (virDomainDefHasMemballoon(def) && virDeviceInfoPCIAddressIsWanted(&def->memballoon->info)) { - if (qemuDomainPCIAddressReserveNextAddr(addrs, &def->memballoon->info) < 0) goto error; diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 90319261ff..26a83a754b 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -2439,11 +2439,10 @@ static int qemuDomainSetMemoryStatsPeriod(virDomainPtr dom, int period, priv = vm->privateData; if (def) { - if (!def->memballoon || - def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) { + if (!virDomainDefHasMemballoon(def)) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("Memory balloon model must be virtio to set the" - " collection period")); + _("No memory balloon device configured, " + "can not set the collection period")); goto endjob; } @@ -2463,11 +2462,10 @@ static int qemuDomainSetMemoryStatsPeriod(virDomainPtr dom, int period, } if (persistentDef) { - if (!persistentDef->memballoon || - persistentDef->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) { + if (!virDomainDefHasMemballoon(def)) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("Memory balloon model must be virtio to set the" - " collection period")); + _("No memory balloon device configured, " + "can not set the collection period")); goto endjob; } persistentDef->memballoon->period = period; @@ -11964,8 +11962,7 @@ qemuDomainMemoryStatsInternal(virQEMUDriverPtr driver, if (virDomainObjCheckActive(vm) < 0) return -1; - if (vm->def->memballoon && - vm->def->memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) { + if (virDomainDefHasMemballoon(vm->def)) { qemuDomainObjEnterMonitor(driver, vm); ret = qemuMonitorGetMemoryStats(qemuDomainGetMonitor(vm), vm->def->memballoon, stats, nr_stats); diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 8120201eb6..9ccc3601a2 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -7593,8 +7593,7 @@ int qemuProcessAttach(virConnectPtr conn ATTRIBUTE_UNUSED, if (running) { virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_UNPAUSED); - if (vm->def->memballoon && - vm->def->memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO && + if (virDomainDefHasMemballoon(vm->def) && vm->def->memballoon->period) { qemuDomainObjEnterMonitor(driver, vm); qemuMonitorSetMemoryStatsPeriod(priv->mon, vm->def->memballoon, -- 2.20.1