target-ppc: QOM'ify CPU

Embed CPUPPCState as first member of PowerPCCPU.
Distinguish between "powerpc-cpu", "powerpc64-cpu" and
"embedded-powerpc-cpu".

Let CPUClass::reset() call cpu_state_reset() for now.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: David Gibson <david@gibson.dropbear.id.au>

target-ppc/cpu-qom.h

@@ -0,0 +1,77 @@
+/*
+ * QEMU PowerPC CPU
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>
+ */
+#ifndef QEMU_PPC_CPU_QOM_H
+#define QEMU_PPC_CPU_QOM_H
+
+#include "qemu/cpu.h"
+#include "cpu.h"
+
+#ifdef TARGET_PPC64
+#define TYPE_POWERPC_CPU "powerpc64-cpu"
+#elif defined(TARGET_PPCEMB)
+#define TYPE_POWERPC_CPU "embedded-powerpc-cpu"
+#else
+#define TYPE_POWERPC_CPU "powerpc-cpu"
+#endif
+
+#define POWERPC_CPU_CLASS(klass) \
+    OBJECT_CLASS_CHECK(PowerPCCPUClass, (klass), TYPE_POWERPC_CPU)
+#define POWERPC_CPU(obj) \
+    OBJECT_CHECK(PowerPCCPU, (obj), TYPE_POWERPC_CPU)
+#define POWERPC_CPU_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(PowerPCCPUClass, (obj), TYPE_POWERPC_CPU)
+
+/**
+ * PowerPCCPUClass:
+ * @parent_reset: The parent class' reset handler.
+ *
+ * A PowerPC CPU model.
+ */
+typedef struct PowerPCCPUClass {
+    /*< private >*/
+    CPUClass parent_class;
+    /*< public >*/
+
+    void (*parent_reset)(CPUState *cpu);
+} PowerPCCPUClass;
+
+/**
+ * PowerPCCPU:
+ * @env: #CPUPPCState
+ *
+ * A PowerPC CPU.
+ */
+typedef struct PowerPCCPU {
+    /*< private >*/
+    CPUState parent_obj;
+    /*< public >*/
+
+    CPUPPCState env;
+} PowerPCCPU;
+
+static inline PowerPCCPU *ppc_env_get_cpu(CPUPPCState *env)
+{
+    return POWERPC_CPU(container_of(env, PowerPCCPU, env));
+}
+
+#define ENV_GET_CPU(e) CPU(ppc_env_get_cpu(e))
+
+
+#endif

target-ppc/cpu.h

@@ -1096,6 +1096,8 @@ struct mmu_ctx_t {
 };
 #endif
 
+#include "cpu-qom.h"
+
 /*****************************************************************************/
 CPUPPCState *cpu_ppc_init (const char *cpu_model);
 void ppc_translate_init(void);

target-ppc/helper.c

@@ -3186,6 +3186,7 @@ void cpu_state_reset(CPUPPCState *env)
 
 CPUPPCState *cpu_ppc_init (const char *cpu_model)
 {
+    PowerPCCPU *cpu;
     CPUPPCState *env;
     const ppc_def_t *def;
 
@@ -3193,7 +3194,8 @@ CPUPPCState *cpu_ppc_init (const char *cpu_model)
     if (!def)
         return NULL;
 
-    env = g_malloc0(sizeof(CPUPPCState));
+    cpu = POWERPC_CPU(object_new(TYPE_POWERPC_CPU));
+    env = &cpu->env;
     cpu_exec_init(env);
     if (tcg_enabled()) {
         ppc_translate_init();

target-ppc/translate_init.c

@@ -10204,3 +10204,40 @@ void ppc_cpu_list (FILE *f, fprintf_function cpu_fprintf)
                        ppc_defs[i].name, ppc_defs[i].pvr);
     }
 }
+
+/* CPUClass::reset() */
+static void ppc_cpu_reset(CPUState *s)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(s);
+    PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
+    CPUPPCState *env = &cpu->env;
+
+    pcc->parent_reset(s);
+
+    cpu_state_reset(env);
+}
+
+static void ppc_cpu_class_init(ObjectClass *oc, void *data)
+{
+    PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
+    CPUClass *cc = CPU_CLASS(oc);
+
+    pcc->parent_reset = cc->reset;
+    cc->reset = ppc_cpu_reset;
+}
+
+static const TypeInfo ppc_cpu_type_info = {
+    .name = TYPE_POWERPC_CPU,
+    .parent = TYPE_CPU,
+    .instance_size = sizeof(PowerPCCPU),
+    .abstract = false,
+    .class_size = sizeof(PowerPCCPUClass),
+    .class_init = ppc_cpu_class_init,
+};
+
+static void ppc_cpu_register_types(void)
+{
+    type_register_static(&ppc_cpu_type_info);
+}
+
+type_init(ppc_cpu_register_types)