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qemu: check iotune params same for all disk in group

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Currently it is possible to start a domain which have disks
in same iotune group and at the same time having different iotune
params. Both params set are passed to qemu in command line and the one
that is passed later down command line is get actually set.
Let's prohibit such configurations.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Nikolay Shirokovskiy 2020-01-08 09:49:27 +03:00 committed by Michal Privoznik
parent e7efffe6cb
commit dd94f36ffb
8 changed files with 79 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/conf/domain_conf.c
View File

@ -31795,3 +31795,29 @@ virDomainBlockIoTuneInfoCopy(const virDomainBlockIoTuneInfo *src,
*dst = *src;
dst->group_name = g_strdup(src->group_name);
}
bool
virDomainBlockIoTuneInfoEqual(const virDomainBlockIoTuneInfo *a,
const virDomainBlockIoTuneInfo *b)
{
return a->total_bytes_sec == b->total_bytes_sec &&
a->read_bytes_sec == b->read_bytes_sec &&
a->write_bytes_sec == b->write_bytes_sec &&
a->total_iops_sec == b->total_iops_sec &&
a->read_iops_sec == b->read_iops_sec &&
a->write_iops_sec == b->write_iops_sec &&
a->total_bytes_sec_max == b->total_bytes_sec_max &&
a->read_bytes_sec_max == b->read_bytes_sec_max &&
a->write_bytes_sec_max == b->write_bytes_sec_max &&
a->total_iops_sec_max == b->total_iops_sec_max &&
a->read_iops_sec_max == b->read_iops_sec_max &&
a->write_iops_sec_max == b->write_iops_sec_max &&
a->size_iops_sec == b->size_iops_sec &&
a->total_bytes_sec_max_length == b->total_bytes_sec_max_length &&
a->read_bytes_sec_max_length == b->read_bytes_sec_max_length &&
a->write_bytes_sec_max_length == b->write_bytes_sec_max_length &&
a->total_iops_sec_max_length == b->total_iops_sec_max_length &&
a->read_iops_sec_max_length == b->read_iops_sec_max_length &&
a->write_iops_sec_max_length == b->write_iops_sec_max_length;
}

7
src/conf/domain_conf.h
View File

@ -489,7 +489,8 @@ struct _virDomainBlockIoTuneInfo {
unsigned long long total_iops_sec_max_length;
unsigned long long read_iops_sec_max_length;
unsigned long long write_iops_sec_max_length;
/* Don't forget to update virDomainBlockIoTuneInfoCopy. */
/* Don't forget to update virDomainBlockIoTuneInfoCopy and
* virDomainBlockIoTuneInfoEqual. */
};
@ -3715,3 +3716,7 @@ virDomainBlockIoTuneInfoHasAny(const virDomainBlockIoTuneInfo *iotune);
void
virDomainBlockIoTuneInfoCopy(const virDomainBlockIoTuneInfo *src,
virDomainBlockIoTuneInfoPtr dst);
bool
virDomainBlockIoTuneInfoEqual(const virDomainBlockIoTuneInfo *a,
const virDomainBlockIoTuneInfo *b);

1
src/libvirt_private.syms
View File

@ -227,6 +227,7 @@ virDomainActualNetDefValidate;
virDomainBlockedReasonTypeFromString;
virDomainBlockedReasonTypeToString;
virDomainBlockIoTuneInfoCopy;
virDomainBlockIoTuneInfoEqual;
virDomainBlockIoTuneInfoHasAny;
virDomainBlockIoTuneInfoHasBasic;
virDomainBlockIoTuneInfoHasMax;

42
src/qemu/qemu_command.c
View File

@ -1155,6 +1155,7 @@ qemuDiskConfigBlkdeviotuneEnabled(virDomainDiskDefPtr disk)
*/
static int
qemuCheckDiskConfigBlkdeviotune(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
/* group_name by itself is ignored by qemu */
@ -1166,6 +1167,28 @@ qemuCheckDiskConfigBlkdeviotune(virDomainDiskDefPtr disk,
return -1;
}
/* checking def here is only for calling from tests */
if (disk->blkdeviotune.group_name) {
size_t i;
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDefPtr d = def->disks[i];
if (STREQ(d->dst, disk->dst) ||
STRNEQ_NULLABLE(d->blkdeviotune.group_name,
disk->blkdeviotune.group_name))
continue;
if (!virDomainBlockIoTuneInfoEqual(&d->blkdeviotune,
&disk->blkdeviotune)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("different iotunes for disks %s and %s"),
disk->dst, d->dst);
return -1;
}
}
}
if (disk->blkdeviotune.total_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
@ -1228,9 +1251,10 @@ qemuCheckDiskConfigBlkdeviotune(virDomainDiskDefPtr disk,
*/
int
qemuCheckDiskConfig(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
if (qemuCheckDiskConfigBlkdeviotune(disk, qemuCaps) < 0)
if (qemuCheckDiskConfigBlkdeviotune(disk, def, qemuCaps) < 0)
return -1;
if (disk->wwn) {
@ -1728,6 +1752,7 @@ qemuBuildDiskFrontendAttributes(virDomainDiskDefPtr disk,
static char *
qemuBuildDriveStr(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
@ -1754,7 +1779,7 @@ qemuBuildDriveStr(virDomainDiskDefPtr disk,
}
/* if we are using -device this will be checked elsewhere */
if (qemuCheckDiskConfig(disk, qemuCaps) < 0)
if (qemuCheckDiskConfig(disk, def, qemuCaps) < 0)
return NULL;
virBufferAsprintf(&opt, "if=%s",
@ -1896,7 +1921,7 @@ qemuBuildDiskDeviceStr(const virDomainDef *def,
g_autofree char *scsiVPDDeviceId = NULL;
int controllerModel;
if (qemuCheckDiskConfig(disk, qemuCaps) < 0)
if (qemuCheckDiskConfig(disk, def, qemuCaps) < 0)
return NULL;
if (!qemuDomainCheckCCWS390AddressSupport(def, &disk->info, qemuCaps, disk->dst))
@ -2401,6 +2426,7 @@ qemuBuildBlockStorageSourceAttachDataCommandline(virCommandPtr cmd,
static int
qemuBuildDiskSourceCommandLine(virCommandPtr cmd,
virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceChainData) data = NULL;
@ -2420,7 +2446,7 @@ qemuBuildDiskSourceCommandLine(virCommandPtr cmd,
!(copyOnReadProps = qemuBlockStorageGetCopyOnReadProps(disk)))
return -1;
} else {
if (!(data = qemuBuildStorageSourceChainAttachPrepareDrive(disk, qemuCaps)))
if (!(data = qemuBuildStorageSourceChainAttachPrepareDrive(disk, def, qemuCaps)))
return -1;
}
@ -2450,7 +2476,7 @@ qemuBuildDiskCommandLine(virCommandPtr cmd,
{
g_autofree char *optstr = NULL;
if (qemuBuildDiskSourceCommandLine(cmd, disk, qemuCaps) < 0)
if (qemuBuildDiskSourceCommandLine(cmd, disk, def, qemuCaps) < 0)
return -1;
if (!qemuDiskBusNeedsDriveArg(disk->bus)) {
@ -10164,6 +10190,7 @@ qemuBuildHotpluggableCPUProps(const virDomainVcpuDef *vcpu)
*/
qemuBlockStorageSourceAttachDataPtr
qemuBuildStorageSourceAttachPrepareDrive(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
@ -10171,7 +10198,7 @@ qemuBuildStorageSourceAttachPrepareDrive(virDomainDiskDefPtr disk,
if (VIR_ALLOC(data) < 0)
return NULL;
if (!(data->driveCmd = qemuBuildDriveStr(disk, qemuCaps)) ||
if (!(data->driveCmd = qemuBuildDriveStr(disk, def, qemuCaps)) ||
!(data->driveAlias = qemuAliasDiskDriveFromDisk(disk)))
return NULL;
@ -10229,6 +10256,7 @@ qemuBuildStorageSourceAttachPrepareCommon(virStorageSourcePtr src,
*/
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareDrive(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
g_autoptr(qemuBlockStorageSourceAttachData) elem = NULL;
@ -10237,7 +10265,7 @@ qemuBuildStorageSourceChainAttachPrepareDrive(virDomainDiskDefPtr disk,
if (VIR_ALLOC(data) < 0)
return NULL;
if (!(elem = qemuBuildStorageSourceAttachPrepareDrive(disk, qemuCaps)))
if (!(elem = qemuBuildStorageSourceAttachPrepareDrive(disk, def, qemuCaps)))
return NULL;
if (qemuBuildStorageSourceAttachPrepareCommon(disk->src, elem, qemuCaps) < 0)

3
src/qemu/qemu_command.h
View File

@ -105,6 +105,7 @@ bool qemuDiskBusNeedsDriveArg(int bus);
qemuBlockStorageSourceAttachDataPtr
qemuBuildStorageSourceAttachPrepareDrive(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps);
int
qemuBuildStorageSourceAttachPrepareCommon(virStorageSourcePtr src,
@ -114,6 +115,7 @@ qemuBuildStorageSourceAttachPrepareCommon(virStorageSourcePtr src,
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareDrive(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps);
@ -199,6 +201,7 @@ bool
qemuDiskConfigBlkdeviotuneEnabled(virDomainDiskDefPtr disk);
int qemuCheckDiskConfig(virDomainDiskDefPtr disk,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps);
bool

2
src/qemu/qemu_driver.c
View File

@ -8136,7 +8136,7 @@ qemuDomainAttachDeviceConfig(virDomainDefPtr vmdef,
}
if (virDomainDiskTranslateSourcePool(disk) < 0)
return -1;
if (qemuCheckDiskConfig(disk, NULL) < 0)
if (qemuCheckDiskConfig(disk, vmdef, NULL) < 0)
return -1;
if (qemuCheckDiskConfigAgainstDomain(vmdef, disk) < 0)
return -1;

2
src/qemu/qemu_hotplug.c
View File

@ -700,7 +700,7 @@ qemuDomainAttachDiskGeneric(virQEMUDriverPtr driver,
priv->qemuCaps)))
goto cleanup;
} else {
if (!(data = qemuBuildStorageSourceChainAttachPrepareDrive(disk,
if (!(data = qemuBuildStorageSourceChainAttachPrepareDrive(disk, vm->def,
priv->qemuCaps)))
goto cleanup;
}

8
tests/qemublocktest.c
View File

@ -185,6 +185,7 @@ static int
testQemuDiskXMLToProps(const void *opaque)
{
struct testQemuDiskXMLToJSONData *data = (void *) opaque;
g_autoptr(virDomainDef) vmdef = NULL;
virDomainDiskDefPtr disk = NULL;
virStorageSourcePtr n;
virJSONValuePtr formatProps = NULL;
@ -204,7 +205,11 @@ testQemuDiskXMLToProps(const void *opaque)
VIR_DOMAIN_DEF_PARSE_STATUS)))
goto cleanup;
if (qemuCheckDiskConfig(disk, data->qemuCaps) < 0 ||
if (!(vmdef = virDomainDefNew()) ||
virDomainDiskInsert(vmdef, disk) < 0)
goto cleanup;
if (qemuCheckDiskConfig(disk, vmdef, data->qemuCaps) < 0 ||
qemuDomainDeviceDefValidateDisk(disk, data->qemuCaps) < 0) {
VIR_TEST_VERBOSE("invalid configuration for disk");
goto cleanup;
@ -242,7 +247,6 @@ testQemuDiskXMLToProps(const void *opaque)
cleanup:
virJSONValueFree(formatProps);
virJSONValueFree(storageProps);
virDomainDiskDefFree(disk);
VIR_FREE(xmlpath);
VIR_FREE(xmlstr);
return ret;