get_arch_id() adds possibility for generic code to get guest visible
CPI id without accessing CPUArchState. If target doesn't override it,
it will return cpu_index.
Override it on target-i386 to return APIC ID.
Signed-off-by: Igor Mammedov <imamm...@redhat.com>
---
* it will be used later by new cpu_exists() generic function and
acpi_piix.
* s/cpu_firmware_id/cpu_arch_id/
---
include/qom/cpu.h | 2 ++
qom/cpu.c | 6 ++++++
target-i386/cpu.c | 10 ++++++++++
3 files changed, 18 insertions(+)
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 3664a1b..b376416 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -45,6 +45,7 @@ typedef struct CPUState CPUState;
* instantiatable CPU type.
* @reset: Callback to reset the #CPUState to its initial state.
* @do_interrupt: Callback for interrupt handling.
+ * @get_arch_id: Callback for getting architecture depended CPU ID
* @vmsd: State description for migration.
*
* Represents a CPU family or model.
@@ -58,6 +59,7 @@ typedef struct CPUClass {
void (*reset)(CPUState *cpu);
void (*do_interrupt)(CPUState *cpu);
+ int64_t (*get_arch_id)(CPUState *cpu);
const struct VMStateDescription *vmsd;
} CPUClass;
diff --git a/qom/cpu.c b/qom/cpu.c
index fe85960..90cbd77 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -77,6 +77,11 @@ static void cpu_common_realizefn(DeviceState *dev, Error
**errp)
}
}
+static int64_t cpu_common_get_arch_id(CPUState *cpu)
+{
+ return cpu->cpu_index;
+}
+
static void cpu_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@@ -84,6 +89,7 @@ static void cpu_class_init(ObjectClass *klass, void *data)
k->class_by_name = cpu_common_class_by_name;
k->reset = cpu_common_reset;
+ k->get_arch_id = cpu_common_get_arch_id;
dc->realize = cpu_common_realizefn;
dc->no_user = 1;
}
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index c28436c..9cca031 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2272,6 +2272,14 @@ static void x86_cpu_initfn(Object *obj)
}
}
+static int64_t x86_cpu_get_arch_id(CPUState *cpu)
+{
+ X86CPU *x86cpu = X86_CPU(cpu);
+ CPUX86State *env = &x86cpu->env;
+
+ return env->cpuid_apic_id;
+}
+
static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
{
X86CPUClass *xcc = X86_CPU_CLASS(oc);
@@ -2286,6 +2294,8 @@ static void x86_cpu_common_class_init(ObjectClass *oc,
void *data)
cc->do_interrupt = x86_cpu_do_interrupt;
cpu_class_set_vmsd(cc, &vmstate_x86_cpu);
+
+ cc->get_arch_id = x86_cpu_get_arch_id;
}
static const TypeInfo x86_cpu_type_info = {
--
1.8.2
