uint32_t kvm_features, svm_features;
uint32_t xlevel;
char model_id[48];
- int vendor_override;
/* Store the results of Centaur's CPUID instructions */
uint32_t ext4_features;
uint32_t xlevel2;
kvm_arch_get_supported_cpuid(s, 0x80000001, 0, R_ECX);
cpu_x86_fill_model_id(x86_cpu_def->model_id);
- x86_cpu_def->vendor_override = 0;
/* Call Centaur's CPUID instruction. */
if (!strcmp(x86_cpu_def->vendor, CPUID_VENDOR_VIA)) {
env->cpuid_vendor2 |= ((uint8_t)value[i + 4]) << (8 * i);
env->cpuid_vendor3 |= ((uint8_t)value[i + 8]) << (8 * i);
}
- env->cpuid_vendor_override = 1;
}
static char *x86_cpuid_get_model_id(Object *obj, Error **errp)
def = &builtin_x86_defs[i];
if (strcmp(name, def->name) == 0) {
memcpy(x86_cpu_def, def, sizeof(*def));
+ /* sysenter isn't supported in compatibility mode on AMD,
+ * syscall isn't supported in compatibility mode on Intel.
+ * Normally we advertise the actual CPU vendor, but you can
+ * override this using the 'vendor' property if you want to use
+ * KVM's sysenter/syscall emulation in compatibility mode and
+ * when doing cross vendor migration
+ */
+ if (kvm_enabled()) {
+ uint32_t ebx = 0, ecx = 0, edx = 0;
+ host_cpuid(0, 0, NULL, &ebx, &ecx, &edx);
+ x86_cpu_vendor_words2str(x86_cpu_def->vendor, ebx, edx, ecx);
+ }
return 0;
}
}
x86_cpu_def->xlevel = numvalue;
} else if (!strcmp(featurestr, "vendor")) {
pstrcpy(x86_cpu_def->vendor, sizeof(x86_cpu_def->vendor), val);
- x86_cpu_def->vendor_override = 1;
} else if (!strcmp(featurestr, "model_id")) {
pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
val);
goto out;
}
object_property_set_str(OBJECT(cpu), def->vendor, "vendor", &error);
- env->cpuid_vendor_override = def->vendor_override;
object_property_set_int(OBJECT(cpu), def->level, "level", &error);
object_property_set_int(OBJECT(cpu), def->family, "family", &error);
object_property_set_int(OBJECT(cpu), def->model, "model", &error);
*ebx = env->cpuid_vendor1;
*edx = env->cpuid_vendor2;
*ecx = env->cpuid_vendor3;
-
- /* sysenter isn't supported on compatibility mode on AMD, syscall
- * isn't supported in compatibility mode on Intel.
- * Normally we advertise the actual cpu vendor, but you can override
- * this if you want to use KVM's sysenter/syscall emulation
- * in compatibility mode and when doing cross vendor migration
- */
- if (kvm_enabled() && ! env->cpuid_vendor_override) {
- host_cpuid(0, 0, NULL, ebx, ecx, edx);
- }
}
void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,