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authorAndreas Färber <afaerber@suse.de>2012-04-18 00:12:23 +0200
committerAndreas Färber <afaerber@suse.de>2012-04-25 10:51:36 +0200
commit89e48965609f96900189aeb373e7e23693eb6eb5 (patch)
tree22fe4ddbbccbd7380f7ec08a83f4e43c01f6c5d4 /target-i386/cpu.c
parentd480e1aff2f3df3d02900905bcc8e0c4e4c108c4 (diff)
target-i386: Introduce "tsc-frequency" property for X86CPU
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>
Diffstat (limited to 'target-i386/cpu.c')
-rw-r--r--target-i386/cpu.c37
1 files changed, 36 insertions, 1 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 0ff79a5f41..65d9af6ac7 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -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);