12:35 a.m.
From: Chun Feng Wu <danielwuwy(a)163.com>
Refactor iotune verification, and verify some rules
* Disk iotune validation can be reused for throttle group validation,
refactor it into common method "virDomainDiskIoTuneValidate"
* Add "virDomainDefValidateThrottleGroups" to validate throttle groups,
which in turn calls "virDomainDiskIoTuneValidate"
* Make sure referenced throttle group exists
* Use "iotune" and "throttlefilters" exclusively for specific disk
* Throttle filters cannot be used together with CDROM
Signed-off-by: Chun Feng Wu <danielwuwy(a)163.com>
---
src/conf/domain_validate.c | 119 ++++++++++++++++++++++++++-----------
src/qemu/qemu_driver.c | 6 ++
src/qemu/qemu_hotplug.c | 8 +++
3 files changed, 99 insertions(+), 34 deletions(-)
diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c
index eddb4a5e74..24613d7155 100644
--- a/src/conf/domain_validate.c
+++ b/src/conf/domain_validate.c
@@ -659,11 +659,55 @@ virDomainDiskDefValidateStartupPolicy(const virDomainDiskDef *disk)
}
+static int
+virDomainDiskIoTuneValidate(const virDomainBlockIoTuneInfo blkdeviotune)
+{
+ if ((blkdeviotune.total_bytes_sec &&
+ blkdeviotune.read_bytes_sec) ||
+ (blkdeviotune.total_bytes_sec &&
+ blkdeviotune.write_bytes_sec)) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("total and read/write bytes_sec cannot be set at the same
time"));
+ return -1;
+ }
+
+ if ((blkdeviotune.total_iops_sec &&
+ blkdeviotune.read_iops_sec) ||
+ (blkdeviotune.total_iops_sec &&
+ blkdeviotune.write_iops_sec)) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("total and read/write iops_sec cannot be set at the same
time"));
+ return -1;
+ }
+
+ if ((blkdeviotune.total_bytes_sec_max &&
+ blkdeviotune.read_bytes_sec_max) ||
+ (blkdeviotune.total_bytes_sec_max &&
+ blkdeviotune.write_bytes_sec_max)) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("total and read/write bytes_sec_max cannot be set at the
same time"));
+ return -1;
+ }
+
+ if ((blkdeviotune.total_iops_sec_max &&
+ blkdeviotune.read_iops_sec_max) ||
+ (blkdeviotune.total_iops_sec_max &&
+ blkdeviotune.write_iops_sec_max)) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("total and read/write iops_sec_max cannot be set at the
same time"));
+ return -1;
+ }
+
+ return 0;
+}
+
+
static int
virDomainDiskDefValidate(const virDomainDef *def,
const virDomainDiskDef *disk)
{
virStorageSource *next;
+ size_t i;
/* disk target is used widely in other code so it must be validated first */
if (!disk->dst) {
@@ -713,41 +757,8 @@ virDomainDiskDefValidate(const virDomainDef *def,
}
/* Validate IotuneParse */
- if ((disk->blkdeviotune.total_bytes_sec &&
- disk->blkdeviotune.read_bytes_sec) ||
- (disk->blkdeviotune.total_bytes_sec &&
- disk->blkdeviotune.write_bytes_sec)) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("total and read/write bytes_sec cannot be set at the same
time"));
+ if (virDomainDiskIoTuneValidate(disk->blkdeviotune) < 0)
return -1;
- }
-
- if ((disk->blkdeviotune.total_iops_sec &&
- disk->blkdeviotune.read_iops_sec) ||
- (disk->blkdeviotune.total_iops_sec &&
- disk->blkdeviotune.write_iops_sec)) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("total and read/write iops_sec cannot be set at the same
time"));
- return -1;
- }
-
- if ((disk->blkdeviotune.total_bytes_sec_max &&
- disk->blkdeviotune.read_bytes_sec_max) ||
- (disk->blkdeviotune.total_bytes_sec_max &&
- disk->blkdeviotune.write_bytes_sec_max)) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("total and read/write bytes_sec_max cannot be set at the
same time"));
- return -1;
- }
-
- if ((disk->blkdeviotune.total_iops_sec_max &&
- disk->blkdeviotune.read_iops_sec_max) ||
- (disk->blkdeviotune.total_iops_sec_max &&
- disk->blkdeviotune.write_iops_sec_max)) {
- virReportError(VIR_ERR_XML_ERROR, "%s",
- _("total and read/write iops_sec_max cannot be set at the
same time"));
- return -1;
- }
/* Reject disks with a bus type that is not compatible with the
* given address type. The function considers only buses that are
@@ -943,6 +954,26 @@ virDomainDiskDefValidate(const virDomainDef *def,
return -1;
}
+ /* referenced group should be defined */
+ for (i = 0; i < disk->nthrottlefilters; i++) {
+ virDomainThrottleFilterDef *filter = disk->throttlefilters[i];
+ if (!virDomainThrottleGroupByName(def, filter->group_name)) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("throttle group '%1$s' not found"),
+ filter->group_name);
+ return -1;
+ }
+ }
+
+ if (disk->throttlefilters &&
+ (disk->blkdeviotune.group_name ||
+ virDomainBlockIoTuneInfoHasAny(&disk->blkdeviotune))) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
+ _("block 'throttlefilters' can't be used together
with 'iotune' for disk '%1$s'"),
+ disk->dst);
+ return -1;
+ }
+
return 0;
}
@@ -1843,6 +1874,23 @@ virDomainDefLaunchSecurityValidate(const virDomainDef *def)
#undef CHECK_BASE64_LEN
+static int
+virDomainDefValidateThrottleGroups(const virDomainDef *def)
+{
+ size_t i;
+
+ for (i = 0; i < def->nthrottlegroups; i++) {
+ virDomainThrottleGroupDef *throttleGroup = def->throttlegroups[i];
+
+ /* Validate Throttle Group */
+ if (virDomainDiskIoTuneValidate(*throttleGroup) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+
static int
virDomainDefValidateInternal(const virDomainDef *def,
virDomainXMLOption *xmlopt)
@@ -1901,6 +1949,9 @@ virDomainDefValidateInternal(const virDomainDef *def,
if (virDomainDefLaunchSecurityValidate(def) < 0)
return -1;
+ if (virDomainDefValidateThrottleGroups(def) < 0)
+ return -1;
+
return 0;
}
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index c8f884c5b8..013393479e 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -14866,6 +14866,12 @@ qemuDomainDiskBlockIoTuneIsSupported(virDomainDiskDef *disk)
return false;
}
+ if (disk->throttlefilters) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("block 'iotune' can't be used together with
'throttlefilters' for disk '%1$s'"), disk->dst);
+ return false;
+ }
+
return true;
}
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 2eaae3f49d..ac97ea1bf6 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -937,6 +937,14 @@ qemuDomainAttachDeviceDiskLiveInternal(virQEMUDriver *driver,
bool releaseSeclabel = false;
int ret = -1;
+ if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
+ if (disk->nthrottlefilters > 0) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+ _("cdrom device with throttle filters isn't
supported"));
+ return -1;
+ }
+ }
+
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("floppy device hotplug isn't supported"));
--
2.43.0