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target-i386: Introduce "tsc-frequency" property for X86CPU

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Use Hz as unit.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
This commit is contained in:
Andreas Färber 2012-04-18 00:12:23 +02:00
parent d480e1aff2
commit 89e4896560
1 changed files with 36 additions and 1 deletions
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37
target-i386/cpu.c
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@ -855,6 +855,37 @@ static void x86_cpuid_set_model_id(Object *obj, const char *model_id,
}
}
static void x86_cpuid_get_tsc_freq(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
int64_t value;
value = cpu->env.tsc_khz * 1000;
visit_type_int(v, &value, name, errp);
}
static void x86_cpuid_set_tsc_freq(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
X86CPU *cpu = X86_CPU(obj);
const int64_t min = 0;
const int64_t max = INT_MAX;
int64_t value;
visit_type_int(v, &value, name, errp);
if (error_is_set(errp)) {
return;
}
if (value < min || value > max) {
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
name ? name : "null", value, min, max);
return;
}
cpu->env.tsc_khz = value / 1000;
}
static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model)
{
unsigned int i;
@ -1155,7 +1186,8 @@ int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
env->cpuid_svm_features = def->svm_features;
env->cpuid_ext4_features = def->ext4_features;
env->cpuid_xlevel2 = def->xlevel2;
env->tsc_khz = def->tsc_khz;
object_property_set_int(OBJECT(cpu), (int64_t)def->tsc_khz * 1000,
"tsc-frequency", &error);
if (!kvm_enabled()) {
env->cpuid_features &= TCG_FEATURES;
env->cpuid_ext_features &= TCG_EXT_FEATURES;
@ -1718,6 +1750,9 @@ static void x86_cpu_initfn(Object *obj)
object_property_add_str(obj, "model-id",
x86_cpuid_get_model_id,
x86_cpuid_set_model_id, NULL);
object_property_add(obj, "tsc-frequency", "int",
x86_cpuid_get_tsc_freq,
x86_cpuid_set_tsc_freq, NULL, NULL, NULL);
env->cpuid_apic_id = env->cpu_index;
mce_init(cpu);