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qemu: taint the VM if it is using a deprecated CPU model

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Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2021-01-22 11:48:23 +00:00
parent 30626ed15b
commit c212eb6c7f
3 changed files with 53 additions and 4 deletions
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17
src/qemu/qemu_capabilities.c
View File

@ -2445,6 +2445,23 @@ virQEMUCapsGetMachineDefaultCPU(virQEMUCapsPtr qemuCaps,
}
bool
virQEMUCapsIsCPUDeprecated(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
const char *model)
{
virQEMUCapsAccelPtr accel = virQEMUCapsGetAccel(qemuCaps, type);
qemuMonitorCPUDefsPtr defs = accel->cpuModels;
size_t i;
for (i = 0; i < defs->ncpus; i++) {
if (STREQ_NULLABLE(defs->cpus[i].name, model))
return defs->cpus[i].deprecated;
}
return false;
}
bool
virQEMUCapsGetMachineNumaMemSupported(virQEMUCapsPtr qemuCaps,
virDomainVirtType virtType,

3
src/qemu/qemu_capabilities.h
View File

@ -687,6 +687,9 @@ bool virQEMUCapsGetMachineHotplugCpus(virQEMUCapsPtr qemuCaps,
const char *virQEMUCapsGetMachineDefaultCPU(virQEMUCapsPtr qemuCaps,
const char *name,
virDomainVirtType type);
bool virQEMUCapsIsCPUDeprecated(virQEMUCapsPtr qemuCaps,
virDomainVirtType type,
const char *model);
bool virQEMUCapsGetMachineNumaMemSupported(virQEMUCapsPtr qemuCaps,
virDomainVirtType virtType,
const char *name);

37
src/qemu/qemu_domain.c
View File

@ -6274,6 +6274,37 @@ void qemuDomainObjTaintMsg(virQEMUDriverPtr driver,
virErrorRestore(&orig_err);
}
static void
qemuDomainObjCheckCPUTaint(virQEMUDriverPtr driver,
virDomainObjPtr obj,
qemuDomainLogContextPtr logCtxt,
bool incomingMigration)
{
qemuDomainObjPrivatePtr priv = obj->privateData;
virQEMUCapsPtr qemuCaps = priv->qemuCaps;
switch (obj->def->cpu->mode) {
case VIR_CPU_MODE_HOST_PASSTHROUGH:
if (incomingMigration)
qemuDomainObjTaint(driver, obj, VIR_DOMAIN_TAINT_HOST_CPU, logCtxt);
break;
case VIR_CPU_MODE_CUSTOM:
if (obj->def->cpu->model &&
virQEMUCapsIsCPUDeprecated(qemuCaps,
obj->def->virtType,
obj->def->cpu->model)) {
qemuDomainObjTaintMsg(driver, obj, VIR_DOMAIN_TAINT_DEPRECATED_CONFIG, logCtxt,
_("CPU model '%s'"),
obj->def->cpu->model);
}
break;
case VIR_CPU_MODE_HOST_MODEL:
case VIR_CPU_MODE_LAST:
default:
break;
}
}
void qemuDomainObjCheckTaint(virQEMUDriverPtr driver,
virDomainObjPtr obj,
@ -6307,10 +6338,8 @@ void qemuDomainObjCheckTaint(virQEMUDriverPtr driver,
VIR_DOMAIN_TAINT_CUSTOM_HYPERVISOR_FEATURE, logCtxt);
}
if (obj->def->cpu &&
obj->def->cpu->mode == VIR_CPU_MODE_HOST_PASSTHROUGH &&
incomingMigration)
qemuDomainObjTaint(driver, obj, VIR_DOMAIN_TAINT_HOST_CPU, logCtxt);
if (obj->def->cpu)
qemuDomainObjCheckCPUTaint(driver, obj, logCtxt, incomingMigration);
for (i = 0; i < obj->def->ndisks; i++)
qemuDomainObjCheckDiskTaint(driver, obj, obj->def->disks[i], logCtxt);