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hyperv: implement domainGetVcpus

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Co-authored-by: Sri Ramanujam <sramanujam@datto.com>
Signed-off-by: Matt Coleman <matt@datto.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Matt Coleman 2020-11-12 12:10:30 -05:00 committed by Michal Privoznik
parent 265e3244c2
commit 01a93d55a0
1 changed files with 56 additions and 0 deletions
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56
src/hyperv/hyperv_driver.c
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@ -1078,6 +1078,61 @@ hypervDomainGetState(virDomainPtr domain, int *state, int *reason,
} }
static int
hypervDomainGetVcpus(virDomainPtr domain,
virVcpuInfoPtr info,
int maxinfo,
unsigned char *cpumaps,
int maplen)
{
int count = 0;
int vcpu_number;
hypervPrivate *priv = domain->conn->privateData;
Win32_PerfRawData_HvStats_HyperVHypervisorVirtualProcessor *vproc = NULL;
/* Hyper-V does not allow setting CPU affinity: all cores will be used */
if (cpumaps && maplen > 0)
memset(cpumaps, 0xFF, maxinfo * maplen);
for (vcpu_number = 0; vcpu_number < maxinfo; vcpu_number++) {
g_auto(virBuffer) query = VIR_BUFFER_INITIALIZER;
/* Name format: <domain_name>:Hv VP <vCPU_number> */
g_autofree char *vcpu_name = g_strdup_printf("%s:Hv VP %d", domain->name, vcpu_number);
/* try to free objects from previous iteration */
hypervFreeObject(priv, (hypervObject *)vproc);
vproc = NULL;
/* get the info */
virBufferEscapeSQL(&query,
WIN32_PERFRAWDATA_HVSTATS_HYPERVHYPERVISORVIRTUALPROCESSOR_WQL_SELECT
"WHERE Name = '%s'",
vcpu_name);
if (hypervGetWmiClass(Win32_PerfRawData_HvStats_HyperVHypervisorVirtualProcessor, &vproc) < 0)
continue;
/* fill structure info */
info[vcpu_number].number = vcpu_number;
if (vproc) {
info[vcpu_number].state = VIR_VCPU_RUNNING;
info[vcpu_number].cpuTime = vproc->data->PercentTotalRunTime * 100;
info[vcpu_number].cpu = VIR_VCPU_INFO_CPU_UNAVAILABLE;
} else {
info[vcpu_number].state = VIR_VCPU_OFFLINE;
info[vcpu_number].cpuTime = 0LLU;
info[vcpu_number].cpu = VIR_VCPU_INFO_CPU_OFFLINE;
}
count++;
}
hypervFreeObject(priv, (hypervObject *)vproc);
return count;
}
static char * static char *
hypervDomainGetXMLDesc(virDomainPtr domain, unsigned int flags) hypervDomainGetXMLDesc(virDomainPtr domain, unsigned int flags)
{ {
@ -1875,6 +1930,7 @@ static virHypervisorDriver hypervHypervisorDriver = {
.domainSetMemoryFlags = hypervDomainSetMemoryFlags, /* 3.6.0 */ .domainSetMemoryFlags = hypervDomainSetMemoryFlags, /* 3.6.0 */
.domainGetInfo = hypervDomainGetInfo, /* 0.9.5 */ .domainGetInfo = hypervDomainGetInfo, /* 0.9.5 */
.domainGetState = hypervDomainGetState, /* 0.9.5 */ .domainGetState = hypervDomainGetState, /* 0.9.5 */
.domainGetVcpus = hypervDomainGetVcpus, /* 6.10.0 */
.domainGetXMLDesc = hypervDomainGetXMLDesc, /* 0.9.5 */ .domainGetXMLDesc = hypervDomainGetXMLDesc, /* 0.9.5 */
.connectListDefinedDomains = hypervConnectListDefinedDomains, /* 0.9.5 */ .connectListDefinedDomains = hypervConnectListDefinedDomains, /* 0.9.5 */
.connectNumOfDefinedDomains = hypervConnectNumOfDefinedDomains, /* 0.9.5 */ .connectNumOfDefinedDomains = hypervConnectNumOfDefinedDomains, /* 0.9.5 */