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qemu: setvcpus: Extract setting of maximum vcpu count

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Setting of the maximum vcpu count is slightly semantically different
thus split it into a self-contained func.
This commit is contained in:
Peter Krempa 2016-08-03 13:21:42 +02:00
parent c2e12b01ba
commit f10da2f553
1 changed files with 44 additions and 23 deletions
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67
src/qemu/qemu_driver.c
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@ -4755,6 +4755,42 @@ qemuDomainSetVcpusAgent(virDomainObjPtr vm,
}
static int
qemuDomainSetVcpusMax(virQEMUDriverPtr driver,
virDomainDefPtr def,
virDomainDefPtr persistentDef,
unsigned int nvcpus)
{
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
int ret = -1;
if (def) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("maximum vcpu count of a live domain can't be modified"));
goto cleanup;
}
if (virDomainNumaGetCPUCountTotal(persistentDef->numa) > nvcpus) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Number of CPUs in <numa> exceeds the desired "
"maximum vcpu count"));
goto cleanup;
}
if (virDomainDefSetVcpusMax(persistentDef, nvcpus, driver->xmlopt) < 0)
goto cleanup;
if (virDomainSaveConfig(cfg->configDir, driver->caps, persistentDef) < 0)
goto cleanup;
ret = 0;
cleanup:
virObjectUnref(cfg);
return ret;
}
static int
qemuDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
unsigned int flags)
@ -4799,14 +4835,12 @@ qemuDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
if (virDomainObjGetDefs(vm, flags, &def, &persistentDef) < 0)
goto endjob;
if (def) {
if (flags & VIR_DOMAIN_VCPU_MAXIMUM) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("maximum vcpu count of a live domain can't be "
"modified"));
goto endjob;
}
if (flags & VIR_DOMAIN_VCPU_MAXIMUM) {
ret = qemuDomainSetVcpusMax(driver, def, persistentDef, nvcpus);
goto endjob;
}
if (def) {
if (nvcpus > virDomainDefGetVcpusMax(def)) {
virReportError(VIR_ERR_INVALID_ARG,
_("requested vcpus is greater than max allowable"
@ -4817,8 +4851,7 @@ qemuDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
}
if (persistentDef) {
if (!(flags & VIR_DOMAIN_VCPU_MAXIMUM) &&
nvcpus > virDomainDefGetVcpusMax(persistentDef)) {
if (nvcpus > virDomainDefGetVcpusMax(persistentDef)) {
virReportError(VIR_ERR_INVALID_ARG,
_("requested vcpus is greater than max allowable"
" vcpus for the persistent domain: %u > %u"),
@ -4862,20 +4895,8 @@ qemuDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
}
if (persistentDef) {
if (flags & VIR_DOMAIN_VCPU_MAXIMUM) {
if (virDomainNumaGetCPUCountTotal(persistentDef->numa) > nvcpus) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Number of CPUs in <numa> exceeds the desired "
"maximum vcpu count"));
goto endjob;
}
if (virDomainDefSetVcpusMax(persistentDef, nvcpus, driver->xmlopt) < 0)
goto endjob;
} else {
if (virDomainDefSetVcpus(persistentDef, nvcpus) < 0)
goto endjob;
}
if (virDomainDefSetVcpus(persistentDef, nvcpus) < 0)
goto endjob;
if (virDomainSaveConfig(cfg->configDir, driver->caps,
persistentDef) < 0)