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qemu: Introduce qemuMigrationSrcBeginXML helper

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Turn the final part of Begin phase formatting a domain XML for migration
into a reusable helper.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Jiri Denemark 2022-05-10 15:20:25 +02:00
parent 3c1f37848d
commit ab3fd13932
1 changed files with 58 additions and 37 deletions
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95
src/qemu/qemu_migration.c
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@ -2458,6 +2458,60 @@ qemuMigrationAnyRefreshStatus(virQEMUDriver *driver,
}
static char *
qemuMigrationSrcBeginXML(virDomainObj *vm,
const char *xmlin,
char **cookieout,
int *cookieoutlen,
unsigned int cookieFlags,
const char **migrate_disks,
size_t nmigrate_disks,
unsigned long flags)
{
qemuDomainObjPrivate *priv = vm->privateData;
virQEMUDriver *driver = priv->driver;
g_autoptr(qemuMigrationCookie) mig = NULL;
if (priv->origCPU)
cookieFlags |= QEMU_MIGRATION_COOKIE_CPU;
if (!(flags & VIR_MIGRATE_OFFLINE))
cookieFlags |= QEMU_MIGRATION_COOKIE_CAPS;
if (!(mig = qemuMigrationCookieNew(vm->def, priv->origname)))
return NULL;
if (cookieFlags & QEMU_MIGRATION_COOKIE_NBD &&
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_BLOCK_BITMAP_MAPPING) &&
qemuMigrationSrcBeginPhaseBlockDirtyBitmaps(mig, vm, migrate_disks,
nmigrate_disks) < 0)
return NULL;
if (qemuMigrationCookieFormat(mig, driver, vm,
QEMU_MIGRATION_SOURCE,
cookieout, cookieoutlen,
cookieFlags) < 0)
return NULL;
if (xmlin) {
g_autoptr(virDomainDef) def = NULL;
if (!(def = virDomainDefParseString(xmlin, driver->xmlopt, priv->qemuCaps,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE)))
return NULL;
if (!qemuDomainCheckABIStability(driver, vm, def))
return NULL;
return qemuDomainDefFormatLive(driver, priv->qemuCaps, def, NULL, false, true);
}
return qemuDomainDefFormatLive(driver, priv->qemuCaps, vm->def, priv->origCPU,
false, true);
}
/* The caller is supposed to lock the vm and start a migration job. */
static char *
qemuMigrationSrcBeginPhase(virQEMUDriver *driver,
@ -2470,8 +2524,6 @@ qemuMigrationSrcBeginPhase(virQEMUDriver *driver,
const char **migrate_disks,
unsigned long flags)
{
g_autoptr(qemuMigrationCookie) mig = NULL;
g_autoptr(virDomainDef) def = NULL;
qemuDomainObjPrivate *priv = vm->privateData;
unsigned int cookieFlags = QEMU_MIGRATION_COOKIE_LOCKSTATE;
@ -2589,41 +2641,10 @@ qemuMigrationSrcBeginPhase(virQEMUDriver *driver,
vm->newDef && !qemuDomainVcpuHotplugIsInOrder(vm->newDef)))
cookieFlags |= QEMU_MIGRATION_COOKIE_CPU_HOTPLUG;
if (priv->origCPU)
cookieFlags |= QEMU_MIGRATION_COOKIE_CPU;
if (!(flags & VIR_MIGRATE_OFFLINE))
cookieFlags |= QEMU_MIGRATION_COOKIE_CAPS;
if (!(mig = qemuMigrationCookieNew(vm->def, priv->origname)))
return NULL;
if (cookieFlags & QEMU_MIGRATION_COOKIE_NBD &&
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_BLOCK_BITMAP_MAPPING) &&
qemuMigrationSrcBeginPhaseBlockDirtyBitmaps(mig, vm, migrate_disks,
nmigrate_disks) < 0)
return NULL;
if (qemuMigrationCookieFormat(mig, driver, vm,
QEMU_MIGRATION_SOURCE,
cookieout, cookieoutlen,
cookieFlags) < 0)
return NULL;
if (xmlin) {
if (!(def = virDomainDefParseString(xmlin, driver->xmlopt, priv->qemuCaps,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE)))
return NULL;
if (!qemuDomainCheckABIStability(driver, vm, def))
return NULL;
return qemuDomainDefFormatLive(driver, priv->qemuCaps, def, NULL, false, true);
} else {
return qemuDomainDefFormatLive(driver, priv->qemuCaps, vm->def, priv->origCPU,
false, true);
}
return qemuMigrationSrcBeginXML(vm, xmlin,
cookieout, cookieoutlen, cookieFlags,
migrate_disks, nmigrate_disks,
flags);
}
char *