[libvirt] [PATCHv2 2/2] qemu: snapshot: Forbid taking/reverting snapshots in PMSUSPENDED state

Qemu doesn't currently support them and behaves strangely. Just forbid them. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1079162 --- src/qemu/qemu_driver.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 91baa7d..eae23d3 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -13401,9 +13401,14 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain, case VIR_DOMAIN_SHUTDOWN: case VIR_DOMAIN_SHUTOFF: case VIR_DOMAIN_CRASHED: - case VIR_DOMAIN_PMSUSPENDED: break; + case VIR_DOMAIN_PMSUSPENDED: + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("qemu doesn't support taking snapshots of " + "PMSUSPENDED guests")); + goto cleanup; + /* invalid states */ case VIR_DOMAIN_NOSTATE: case VIR_DOMAIN_BLOCKED: /* invalid state, unused in qemu */ @@ -14178,8 +14183,6 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, case VIR_DOMAIN_SHUTDOWN: case VIR_DOMAIN_SHUTOFF: case VIR_DOMAIN_CRASHED: - /* XXX: The following one is clearly wrong! */ - case VIR_DOMAIN_PMSUSPENDED: /* Transitions 1, 4, 7 */ /* Newer qemu -loadvm refuses to revert to the state of a snapshot * created by qemu-img snapshot -c. If the domain is running, we @@ -14245,6 +14248,12 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, } break; + case VIR_DOMAIN_PMSUSPENDED: + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("qemu doesn't support reversion of snapshot taken in " + "PMSUSPENDED state")); + goto cleanup; + case VIR_DOMAIN_NOSTATE: case VIR_DOMAIN_BLOCKED: case VIR_DOMAIN_LAST: -- 2.0.0