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qemu: Implement virConnectCompareHypervisorCPU

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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Jiri Denemark 2018-05-09 14:06:46 +02:00
parent 8c4ccf9d2e
commit 748246f3f5
1 changed files with 61 additions and 0 deletions
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61
src/qemu/qemu_driver.c
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@ -13235,6 +13235,66 @@ qemuConnectCompareCPU(virConnectPtr conn,
}
static int
qemuConnectCompareHypervisorCPU(virConnectPtr conn,
const char *emulator,
const char *archStr,
const char *machine,
const char *virttypeStr,
const char *xmlCPU,
unsigned int flags)
{
int ret = VIR_CPU_COMPARE_ERROR;
virQEMUDriverPtr driver = conn->privateData;
virQEMUCapsPtr qemuCaps = NULL;
bool failIncompatible;
virCPUDefPtr hvCPU;
virArch arch;
virDomainVirtType virttype;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareHypervisorCPUEnsureACL(conn) < 0)
goto cleanup;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
qemuCaps = virQEMUCapsCacheLookupDefault(driver->qemuCapsCache,
emulator,
archStr,
virttypeStr,
machine,
&arch, &virttype, NULL);
if (!qemuCaps)
goto cleanup;
hvCPU = virQEMUCapsGetHostModel(qemuCaps, virttype,
VIR_QEMU_CAPS_HOST_CPU_REPORTED);
if (!hvCPU || hvCPU->fallback != VIR_CPU_FALLBACK_FORBID) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("QEMU '%s' does not support reporting CPU model for "
"virttype '%s'"),
virQEMUCapsGetBinary(qemuCaps),
virDomainVirtTypeToString(virttype));
goto cleanup;
}
if (ARCH_IS_X86(arch)) {
ret = virCPUCompareXML(arch, hvCPU, xmlCPU, failIncompatible);
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("comparing with the hypervisor CPU is not supported "
"for arch %s"), virArchToString(arch));
}
cleanup:
virObjectUnref(qemuCaps);
return ret;
}
static char *
qemuConnectBaselineCPU(virConnectPtr conn ATTRIBUTE_UNUSED,
const char **xmlCPUs,
@ -21471,6 +21531,7 @@ static virHypervisorDriver qemuHypervisorDriver = {
.domainSetVcpu = qemuDomainSetVcpu, /* 3.1.0 */
.domainSetBlockThreshold = qemuDomainSetBlockThreshold, /* 3.2.0 */
.domainSetLifecycleAction = qemuDomainSetLifecycleAction, /* 3.9.0 */
.connectCompareHypervisorCPU = qemuConnectCompareHypervisorCPU, /* 4.4.0 */
};