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target-i386: Move KVM default-vendor hack to instance_init 

As we will not have a cpu_x86_find_by_name() function anymore,
move the KVM default-vendor hack to instance_init.

Unfortunately we can't move that code to class_init because it depends
on KVM being initialized.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Eduardo Habkost 2014-01-30 17:48:55 -02:00 committed by Paolo Bonzini
parent 82beb53633
commit 7c08db30e6
1 changed files with 19 additions and 13 deletions
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32
target-i386/cpu.c
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@ -1601,18 +1601,6 @@ static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t *x86_cpu_def,
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;
}
}
@ -1841,7 +1829,6 @@ static void cpu_x86_register(X86CPU *cpu, const char *name, Error **errp)
return;
}
object_property_set_str(OBJECT(cpu), def->vendor, "vendor", errp);
object_property_set_int(OBJECT(cpu), def->level, "level", errp);
object_property_set_int(OBJECT(cpu), def->family, "family", errp);
object_property_set_int(OBJECT(cpu), def->model, "model", errp);
@ -1865,6 +1852,25 @@ static void cpu_x86_register(X86CPU *cpu, const char *name, Error **errp)
env->features[FEAT_KVM] |= kvm_default_features;
}
env->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR;
/* 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
*/
const char *vendor = def->vendor;
char host_vendor[CPUID_VENDOR_SZ + 1];
if (kvm_enabled()) {
uint32_t ebx = 0, ecx = 0, edx = 0;
host_cpuid(0, 0, NULL, &ebx, &ecx, &edx);
x86_cpu_vendor_words2str(host_vendor, ebx, edx, ecx);
vendor = host_vendor;
}
object_property_set_str(OBJECT(cpu), vendor, "vendor", errp);
}
X86CPU *cpu_x86_create(const char *cpu_model, DeviceState *icc_bridge,