target-mips: QOM'ify CPU

Embed CPUMIPSState as first member of QOM MIPSCPU.

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

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>

Makefile.target

@@ -98,6 +98,9 @@ libobj-$(TARGET_CRIS) += cpu.o
 libobj-$(TARGET_LM32) += cpu.o
 libobj-$(TARGET_M68K) += cpu.o
 libobj-$(TARGET_MICROBLAZE) += cpu.o
+ifeq ($(TARGET_BASE_ARCH), mips)
+libobj-y += cpu.o
+endif
 libobj-$(TARGET_S390X) += cpu.o
 libobj-$(TARGET_SH4) += cpu.o
 ifeq ($(TARGET_BASE_ARCH), sparc)

target-mips/cpu-qom.h

@@ -0,0 +1,74 @@
+/*
+ * QEMU MIPS 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_MIPS_CPU_QOM_H
+#define QEMU_MIPS_CPU_QOM_H
+
+#include "qemu/cpu.h"
+
+#ifdef TARGET_MIPS64
+#define TYPE_MIPS_CPU "mips64-cpu"
+#else
+#define TYPE_MIPS_CPU "mips-cpu"
+#endif
+
+#define MIPS_CPU_CLASS(klass) \
+    OBJECT_CLASS_CHECK(MIPSCPUClass, (klass), TYPE_MIPS_CPU)
+#define MIPS_CPU(obj) \
+    OBJECT_CHECK(MIPSCPU, (obj), TYPE_MIPS_CPU)
+#define MIPS_CPU_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(MIPSCPUClass, (obj), TYPE_MIPS_CPU)
+
+/**
+ * MIPSCPUClass:
+ * @parent_reset: The parent class' reset handler.
+ *
+ * A MIPS CPU model.
+ */
+typedef struct MIPSCPUClass {
+    /*< private >*/
+    CPUClass parent_class;
+    /*< public >*/
+
+    void (*parent_reset)(CPUState *cpu);
+} MIPSCPUClass;
+
+/**
+ * MIPSCPU:
+ * @env: #CPUMIPSState
+ *
+ * A MIPS CPU.
+ */
+typedef struct MIPSCPU {
+    /*< private >*/
+    CPUState parent_obj;
+    /*< public >*/
+
+    CPUMIPSState env;
+} MIPSCPU;
+
+static inline MIPSCPU *mips_env_get_cpu(CPUMIPSState *env)
+{
+    return MIPS_CPU(container_of(env, MIPSCPU, env));
+}
+
+#define ENV_GET_CPU(e) CPU(mips_env_get_cpu(e))
+
+
+#endif

target-mips/cpu.c

@@ -0,0 +1,60 @@
+/*
+ * QEMU MIPS 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>
+ */
+
+#include "cpu.h"
+#include "qemu-common.h"
+
+
+/* CPUClass::reset() */
+static void mips_cpu_reset(CPUState *s)
+{
+    MIPSCPU *cpu = MIPS_CPU(s);
+    MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(cpu);
+    CPUMIPSState *env = &cpu->env;
+
+    mcc->parent_reset(s);
+
+    cpu_state_reset(env);
+}
+
+static void mips_cpu_class_init(ObjectClass *c, void *data)
+{
+    MIPSCPUClass *mcc = MIPS_CPU_CLASS(c);
+    CPUClass *cc = CPU_CLASS(c);
+
+    mcc->parent_reset = cc->reset;
+    cc->reset = mips_cpu_reset;
+}
+
+static const TypeInfo mips_cpu_type_info = {
+    .name = TYPE_MIPS_CPU,
+    .parent = TYPE_CPU,
+    .instance_size = sizeof(MIPSCPU),
+    .abstract = false,
+    .class_size = sizeof(MIPSCPUClass),
+    .class_init = mips_cpu_class_init,
+};
+
+static void mips_cpu_register_types(void)
+{
+    type_register_static(&mips_cpu_type_info);
+}
+
+type_init(mips_cpu_register_types)

target-mips/cpu.h

@@ -483,6 +483,8 @@ struct CPUMIPSState {
     struct QEMUTimer *timer; /* Internal timer */
 };
 
+#include "cpu-qom.h"
+
 #if !defined(CONFIG_USER_ONLY)
 int no_mmu_map_address (CPUMIPSState *env, target_phys_addr_t *physical, int *prot,
                         target_ulong address, int rw, int access_type);

target-mips/translate.c

@@ -12691,13 +12691,15 @@ static void mips_tcg_init(void)
 
 CPUMIPSState *cpu_mips_init (const char *cpu_model)
 {
+    MIPSCPU *cpu;
     CPUMIPSState *env;
     const mips_def_t *def;
 
     def = cpu_mips_find_by_name(cpu_model);
     if (!def)
         return NULL;
-    env = g_malloc0(sizeof(CPUMIPSState));
+    cpu = MIPS_CPU(object_new(TYPE_MIPS_CPU));
+    env = &cpu->env;
     env->cpu_model = def;
     env->cpu_model_str = cpu_model;