target-s390x: Introduce QOM realizefn for S390CPU

Introduce realizefn and set realized = true in cpu_s390x_init().

Defer CPU reset from initfn to realizefn.

Acked-by: Richard Henderson <rth@twiddle.net>
[AF: Invoke parent's realizefn]
Signed-off-by: Andreas Färber <afaerber@suse.de>

target-s390x/cpu-qom.h

@@ -34,6 +34,7 @@
 
 /**
  * S390CPUClass:
+ * @parent_realize: The parent class' realize handler.
  * @parent_reset: The parent class' reset handler.
  *
  * An S/390 CPU model.
@@ -43,6 +44,7 @@ typedef struct S390CPUClass {
     CPUClass parent_class;
     /*< public >*/
 
+    DeviceRealize parent_realize;
     void (*parent_reset)(CPUState *cpu);
 } S390CPUClass;
 

target-s390x/cpu.c

@@ -97,6 +97,17 @@ static void s390_cpu_machine_reset_cb(void *opaque)
 }
 #endif
 
+static void s390_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+    S390CPU *cpu = S390_CPU(dev);
+    S390CPUClass *scc = S390_CPU_GET_CLASS(dev);
+
+    qemu_init_vcpu(&cpu->env);
+    cpu_reset(CPU(cpu));
+
+    scc->parent_realize(dev, errp);
+}
+
 static void s390_cpu_initfn(Object *obj)
 {
     S390CPU *cpu = S390_CPU(obj);
@@ -122,8 +133,6 @@ static void s390_cpu_initfn(Object *obj)
 #endif
     env->cpu_num = cpu_num++;
     env->ext_index = -1;
-
-    cpu_reset(CPU(cpu));
 }
 
 static void s390_cpu_finalize(Object *obj)
@@ -146,6 +155,9 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data)
     CPUClass *cc = CPU_CLASS(scc);
     DeviceClass *dc = DEVICE_CLASS(oc);
 
+    scc->parent_realize = dc->realize;
+    dc->realize = s390_cpu_realizefn;
+
     scc->parent_reset = cc->reset;
     cc->reset = s390_cpu_reset;
 

target-s390x/helper.c

@@ -85,7 +85,9 @@ S390CPU *cpu_s390x_init(const char *cpu_model)
     }
 
     env->cpu_model_str = cpu_model;
-    qemu_init_vcpu(env);
+
+    object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
+
     return cpu;
 }