[PATCH v1 2/3] qemu_driver: Implement qemuDomainSetVcpuTuneParameters
From: Hyman Huang <yong.huang(a)smartx.com>
Support hotplug/hotunplug of virtual CPU by wrapping the
existing interface qemuDomainSetVcpu.
Signed-off-by: Hyman Huang <yong.huang(a)smartx.com>
---
include/libvirt/libvirt-domain.h | 12 ++++++++++++
src/qemu/qemu_driver.c | 29 +++++++++++++++++++++++++++++
2 files changed, 41 insertions(+)
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index ae1e07b7b6..16e3140e09 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -6612,6 +6612,18 @@ virDomainGraphicsReload(virDomainPtr domain,
unsigned int type,
unsigned int flags);
+/* Virtual CPU set parameters */
+
+/**
+ * VIR_DOMAIN_VCPU_STATE:
+ *
+ * The tunable enable/disable individual vcpus described by @vcpumap
+ * in the hypervisor*
+ *
+ * Since: 11.1.0
+ */
+# define VIR_DOMAIN_VCPU_STATE "state"
+
/**
* virDomainSetVcpuTuneParameters:
*
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 772cb405d6..59d94c6dd6 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -20081,6 +20081,34 @@ qemuDomainGraphicsReload(virDomainPtr domain,
return ret;
}
+static int
+qemuDomainSetVcpuTuneParameters(virDomainPtr dom,
+ const char *vcpumap,
+ virTypedParameterPtr params,
+ int nparams,
+ unsigned int flags)
+{
+ int state;
+ int rc;
+
+ if (virTypedParamsValidate(params, nparams,
+ VIR_DOMAIN_VCPU_STATE,
+ VIR_TYPED_PARAM_INT,
+ NULL) < 0)
+ return -1;
+
+ if ((rc = virTypedParamsGetInt(params, nparams,
+ VIR_DOMAIN_VCPU_STATE,
+ &state)) < 0)
+ return -1;
+
+ if (rc == 1) {
+ return qemuDomainSetVcpu(dom, vcpumap, state, flags);
+ }
+
+ return 0;
+}
+
static virHypervisorDriver qemuHypervisorDriver = {
.name = QEMU_DRIVER_NAME,
.connectURIProbe = qemuConnectURIProbe,
@@ -20331,6 +20359,7 @@ static virHypervisorDriver qemuHypervisorDriver = {
.domainSetLaunchSecurityState = qemuDomainSetLaunchSecurityState, /* 8.0.0 */
.domainFDAssociate = qemuDomainFDAssociate, /* 9.0.0 */
.domainGraphicsReload = qemuDomainGraphicsReload, /* 10.2.0 */
+ .domainSetVcpuTuneParameters = qemuDomainSetVcpuTuneParameters, /* 11.1.0 */
};
--
2.27.0