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qemu: driver: Extract vcpu halted state directly

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Don't extract the halted state into a separate array, but rater access
the vcpu structures directly. We still need to call the vcpu helper to
retrieve the performance statistics though.
This commit is contained in:
Peter Krempa 2018-02-06 15:50:05 +01:00
parent a9ab2abbf6
commit 38d26864f7
1 changed files with 14 additions and 7 deletions
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21
src/qemu/qemu_driver.c
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@ -19660,12 +19660,14 @@ qemuDomainGetStatsVcpu(virQEMUDriverPtr driver,
int *maxparams,
unsigned int privflags)
{
virDomainVcpuDefPtr vcpu;
qemuDomainVcpuPrivatePtr vcpupriv;
size_t i;
int ret = -1;
char param_name[VIR_TYPED_PARAM_FIELD_LENGTH];
virVcpuInfoPtr cpuinfo = NULL;
unsigned long long *cpuwait = NULL;
bool *cpuhalted = NULL;
bool vcpuhalted = false;
if (virTypedParamsAddUInt(&record->params,
&record->nparams,
@ -19691,14 +19693,14 @@ qemuDomainGetStatsVcpu(virQEMUDriverPtr driver,
/* it's ok to be silent and go ahead, because halted vcpu info
* wasn't here from the beginning */
virResetLastError();
} else if (VIR_ALLOC_N(cpuhalted, virDomainDefGetVcpus(dom->def)) < 0) {
goto cleanup;
} else {
vcpuhalted = true;
}
}
if (qemuDomainHelperGetVcpus(dom, cpuinfo, cpuwait,
virDomainDefGetVcpus(dom->def),
NULL, 0, cpuhalted) < 0) {
NULL, 0, NULL) < 0) {
virResetLastError();
ret = 0; /* it's ok to be silent and go ahead */
goto cleanup;
@ -19735,14 +19737,20 @@ qemuDomainGetStatsVcpu(virQEMUDriverPtr driver,
cpuwait[i]) < 0)
goto cleanup;
if (cpuhalted) {
/* state below is extracted from the individual vcpu structs */
if (!(vcpu = virDomainDefGetVcpu(dom->def, cpuinfo[i].number)))
continue;
vcpupriv = QEMU_DOMAIN_VCPU_PRIVATE(vcpu);
if (vcpuhalted) {
snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"vcpu.%u.halted", cpuinfo[i].number);
if (virTypedParamsAddBoolean(&record->params,
&record->nparams,
maxparams,
param_name,
cpuhalted[i]) < 0)
vcpupriv->halted) < 0)
goto cleanup;
}
}
@ -19752,7 +19760,6 @@ qemuDomainGetStatsVcpu(virQEMUDriverPtr driver,
cleanup:
VIR_FREE(cpuinfo);
VIR_FREE(cpuwait);
VIR_FREE(cpuhalted);
return ret;
}