cpu: Prepare QOM realizefn

Overwrite the default implementation with a no-op, no longer
attempting to call DeviceClass::init.

Signed-off-by: Andreas Färber <afaerber@suse.de>

qom/cpu.c

@@ -46,13 +46,18 @@ static ObjectClass *cpu_common_class_by_name(const char *cpu_model)
     return NULL;
 }
 
+static void cpu_common_realizefn(DeviceState *dev, Error **errp)
+{
+}
+
 static void cpu_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     CPUClass *k = CPU_CLASS(klass);
 
     k->class_by_name = cpu_common_class_by_name;
     k->reset = cpu_common_reset;
+    dc->realize = cpu_common_realizefn;
     dc->no_user = 1;
 }