static struct ppc64_model *
ppc64ModelFromCPU(const virCPUDef *cpu,
const struct ppc64_map *map)
{
struct ppc64_model *model;
if (!(model = ppc64ModelFind(map, cpu->model))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown CPU model %s"), cpu->model);
return NULL;
}
return ppc64ModelCopy(model);
}
static struct ppc64_model *
ppc64ModelFromCPU(const virCPUDef *cpu,
const struct ppc64_map *map)
{
struct ppc64_model *model = NULL;
if ((model = ppc64ModelFind(map, cpu->model)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unknown CPU model %s"), cpu->model);
goto error;
}
if ((model = ppc64ModelCopy(model)) == NULL)
goto error;
return model;
error:
ppc64ModelFree(model);
return NULL;
}
static virCPUCompareResult
ppc64Compute(virCPUDefPtr host,
const virCPUDef *other,
virCPUDataPtr *guestData,
char **message)
{
struct ppc64_map *map = NULL;
struct ppc64_model *host_model = NULL;
struct ppc64_model *guest_model = NULL;
virCPUDefPtr cpu = NULL;
virCPUCompareResult ret = VIR_CPU_COMPARE_ERROR;
virArch arch;
size_t i;
/* Ensure existing configurations are handled correctly */
if (!(cpu = virCPUDefCopy(other)) ||
virCPUppc64ConvertLegacy(cpu) < 0)
goto cleanup;
if (cpu->arch != VIR_ARCH_NONE) {
bool found = false;
for (i = 0; i < ARRAY_CARDINALITY(archs); i++) {
if (archs[i] == cpu->arch) {
found = true;
break;
}
}
if (!found) {
VIR_DEBUG("CPU arch %s does not match host arch",
virArchToString(cpu->arch));
if (message &&
virAsprintf(message,
_("CPU arch %s does not match host arch"),
virArchToString(cpu->arch)) < 0)
goto cleanup;
ret = VIR_CPU_COMPARE_INCOMPATIBLE;
goto cleanup;
}
arch = cpu->arch;
} else {
arch = host->arch;
}
if (cpu->vendor &&
(!host->vendor || STRNEQ(cpu->vendor, host->vendor))) {
VIR_DEBUG("host CPU vendor does not match required CPU vendor %s",
cpu->vendor);
if (message &&
virAsprintf(message,
_("host CPU vendor does not match required "
"CPU vendor %s"),
cpu->vendor) < 0)
goto cleanup;
ret = VIR_CPU_COMPARE_INCOMPATIBLE;
goto cleanup;
}
if (!(map = ppc64LoadMap()))
goto cleanup;
/* Host CPU information */
if (!(host_model = ppc64ModelFromCPU(host, map)))
goto cleanup;
if (cpu->type == VIR_CPU_TYPE_GUEST) {
/* Guest CPU information */
virCPUCompareResult tmp;
switch (cpu->mode) {
case VIR_CPU_MODE_HOST_MODEL:
/* host-model only:
* we need to take compatibility modes into account */
tmp = ppc64CheckCompatibilityMode(host->model, cpu->model);
if (tmp != VIR_CPU_COMPARE_IDENTICAL) {
ret = tmp;
goto cleanup;
}
/* fallthrough */
case VIR_CPU_MODE_HOST_PASSTHROUGH:
/* host-model and host-passthrough:
* the guest CPU is the same as the host */
guest_model = ppc64ModelCopy(host_model);
break;
case VIR_CPU_MODE_CUSTOM:
/* custom:
* look up guest CPU information */
guest_model = ppc64ModelFromCPU(cpu, map);
break;
}
} else {
/* Other host CPU information */
guest_model = ppc64ModelFromCPU(cpu, map);
}
if (!guest_model)
goto cleanup;
if (STRNEQ(guest_model->name, host_model->name)) {
VIR_DEBUG("host CPU model does not match required CPU model %s",
guest_model->name);
if (message &&
virAsprintf(message,
_("host CPU model does not match required "
"CPU model %s"),
guest_model->name) < 0)
goto cleanup;
ret = VIR_CPU_COMPARE_INCOMPATIBLE;
goto cleanup;
}
if (guestData)
if (!(*guestData = ppc64MakeCPUData(arch, &guest_model->data)))
goto cleanup;
ret = VIR_CPU_COMPARE_IDENTICAL;
cleanup:
virCPUDefFree(cpu);
ppc64MapFree(map);
ppc64ModelFree(host_model);
ppc64ModelFree(guest_model);
return ret;
}