[libvirt] [PATCH v2 4/5] qemu: Wire up virDomainSuspendForDuration API
This makes use of QEMU guest agent to implement the
virDomainSuspendForDuration API.
---
src/qemu/qemu_driver.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 93 insertions(+), 0 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ab69dca..277b152 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1457,6 +1457,98 @@ cleanup:
return ret;
}
+static int
+qemuDomainSuspendForDuration(virDomainPtr dom,
+ unsigned int target,
+ unsigned long long duration,
+ unsigned int flags)
+{
+ struct qemud_driver *driver = dom->conn->privateData;
+ virDomainObjPtr vm;
+ int ret = -1;
+ qemuDomainObjPrivatePtr priv;
+ int agent_mode;
+
+ virCheckFlags(0, -1);
+
+ if (duration) {
+ qemuReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("Suspending for duration is not supported."));
+ return -1;
+ }
+
+ switch (target) {
+ case VIR_NODE_SUSPEND_TARGET_MEM:
+ agent_mode = QEMU_AGENT_SUSPEND_SLEEP;
+ break;
+ case VIR_NODE_SUSPEND_TARGET_DISK:
+ agent_mode = QEMU_AGENT_SUSPEND_HIBERNATE;
+ break;
+ case VIR_NODE_SUSPEND_TARGET_HYBRID:
+ agent_mode = QEMU_AGENT_SUSPEND_HYBRID;
+ break;
+ default:
+ qemuReportError(VIR_ERR_INVALID_ARG,
+ _("Unsupported suspend target: %u"),
+ target);
+ return -1;
+ }
+
+ qemuDriverLock(driver);
+ vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+ qemuDriverUnlock(driver);
+
+ if (!vm) {
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
+ virUUIDFormat(dom->uuid, uuidstr);
+ qemuReportError(VIR_ERR_NO_DOMAIN,
+ _("no domain with matching uuid '%s'"),
uuidstr);
+ goto cleanup;
+ }
+
+ if (!virDomainObjIsActive(vm)) {
+ qemuReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto cleanup;
+ }
+
+ priv = vm->privateData;
+
+ if (!priv->agent) {
+ qemuReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
+ _("QEMU guest agent is not configured"));
+ goto cleanup;
+ }
+
+ if (priv->agentError) {
+ qemuReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("QEMU guest agent is not "
+ "available due to an error"));
+ goto cleanup;
+ }
+
+ if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_SUSPEND) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ qemuReportError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is not running"));
+ goto endjob;
+ }
+
+ qemuDomainObjEnterAgent(driver, vm);
+ ret = qemuAgentSuspend(priv->agent, agent_mode);
+ qemuDomainObjExitAgent(driver, vm);
+
+endjob:
+ if (qemuDomainObjEndJob(driver, vm) == 0)
+ vm = NULL;
+
+cleanup:
+ if (vm)
+ virDomainObjUnlock(vm);
+ return ret;
+}
static int qemudDomainResume(virDomainPtr dom) {
struct qemud_driver *driver = dom->conn->privateData;
@@ -11761,6 +11853,7 @@ static virDriver qemuDriver = {
.domainLookupByName = qemudDomainLookupByName, /* 0.2.0 */
.domainSuspend = qemudDomainSuspend, /* 0.2.0 */
.domainResume = qemudDomainResume, /* 0.2.0 */
+ .domainSuspendForDuration = qemuDomainSuspendForDuration, /* 0.9.10 */
.domainShutdown = qemuDomainShutdown, /* 0.2.0 */
.domainShutdownFlags = qemuDomainShutdownFlags, /* 0.9.10 */
.domainReboot = qemuDomainReboot, /* 0.9.3 */
--
1.7.3.4