[libvirt] [PATCHv2 14/14] qemu: Implement virDomainSetGuestVcpu in qemu driver
Use the helper added earlier to implement this new API.
---
src/qemu/qemu_driver.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ba3a6e1..19a86bf 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -15377,6 +15377,70 @@ cleanup:
}
#undef MATCH
+
+static int
+qemuDomainSetGuestVcpu(virDomainPtr dom,
+ unsigned int id,
+ unsigned int online,
+ unsigned int flags)
+{
+ virQEMUDriverPtr driver = dom->conn->privateData;
+ virDomainObjPtr vm;
+ qemuDomainObjPrivatePtr priv;
+ int ret = -1;
+
+ qemuAgentCPUInfo agentinfo = { .id = id,
+ .online = !!online };
+
+ virCheckFlags(0, -1);
+
+ if (!(vm = qemuDomObjFromDomain(dom)))
+ return -1;
+
+ priv = vm->privateData;
+
+ /* request data from the guest */
+ if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
+ goto cleanup;
+
+ if (!virDomainObjIsActive(vm)) {
+ virReportError(VIR_ERR_OPERATION_INVALID, "%s",
+ _("domain is not running"));
+ goto endjob;
+ }
+
+ if (!priv->agent) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+ _("guest agent is not configured"));
+ goto endjob;
+ }
+
+ qemuDomainObjEnterAgent(vm);
+ ret = qemuAgentSetVCPUs(priv->agent, &agentinfo, 1);
+ qemuDomainObjExitAgent(vm);
+
+endjob:
+ if (qemuDomainObjEndJob(driver, vm) == 0)
+ vm = NULL;
+
+ if (ret < 0)
+ goto cleanup;
+
+ if (ret != 0) {
+ virReportError(VIR_ERR_OPERATION_FAILED,
+ _("failed to set state of vCPU '%u'"), id);
+ goto cleanup;
+ }
+
+ ret = 0;
+
+cleanup:
+ if (vm)
+ virObjectUnlock(vm);
+ return ret;
+}
+
+
static virDriver qemuDriver = {
.no = VIR_DRV_QEMU,
.name = QEMU_DRIVER_NAME,
@@ -15557,6 +15621,7 @@ static virDriver qemuDriver = {
.domainFSTrim = qemuDomainFSTrim, /* 1.0.1 */
.domainOpenChannel = qemuDomainOpenChannel, /* 1.0.2 */
.domainGetVCPUMap = qemuDomainGetVCPUMap, /* 1.0.7 */
+ .domainSetGuestVcpu = qemuDomainSetGuestVcpu, /* 1.0.7 */
};
--
1.8.2.1