target-arm: Add new AArch64CPUInfo base class and subclasses

Create a new AArch64CPU class; all 64-bit capable ARM
CPUs are subclasses of this. (Currently we only support
one, the "any" CPU used by linux-user.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1378235544-22290-8-git-send-email-peter.maydell@linaro.org

target-arm/Makefile.objs

@@ -5,3 +5,4 @@ obj-$(CONFIG_NO_KVM) += kvm-stub.o
 obj-y += translate.o op_helper.o helper.o cpu.o
 obj-y += neon_helper.o iwmmxt_helper.o
 obj-y += gdbstub.o
+obj-$(TARGET_AARCH64) += cpu64.o

target-arm/cpu-qom.h

@@ -130,6 +130,18 @@ typedef struct ARMCPU {
     uint32_t reset_auxcr;
 } ARMCPU;
 
+#define TYPE_AARCH64_CPU "aarch64-cpu"
+#define AARCH64_CPU_CLASS(klass) \
+    OBJECT_CLASS_CHECK(AArch64CPUClass, (klass), TYPE_AARCH64_CPU)
+#define AARCH64_CPU_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(AArch64CPUClass, (obj), TYPE_AArch64_CPU)
+
+typedef struct AArch64CPUClass {
+    /*< private >*/
+    ARMCPUClass parent_class;
+    /*< public >*/
+} AArch64CPUClass;
+
 static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
 {
     return container_of(env, ARMCPU, env);

target-arm/cpu64.c

@@ -0,0 +1,111 @@
+/*
+ * QEMU AArch64 CPU
+ *
+ * Copyright (c) 2013 Linaro Ltd
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see
+ * <http://www.gnu.org/licenses/gpl-2.0.html>
+ */
+
+#include "cpu.h"
+#include "qemu-common.h"
+#if !defined(CONFIG_USER_ONLY)
+#include "hw/loader.h"
+#endif
+#include "hw/arm/arm.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/kvm.h"
+
+static inline void set_feature(CPUARMState *env, int feature)
+{
+    env->features |= 1ULL << feature;
+}
+
+#ifdef CONFIG_USER_ONLY
+static void aarch64_any_initfn(Object *obj)
+{
+    ARMCPU *cpu = ARM_CPU(obj);
+
+    set_feature(&cpu->env, ARM_FEATURE_V8);
+    set_feature(&cpu->env, ARM_FEATURE_VFP4);
+    set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
+    set_feature(&cpu->env, ARM_FEATURE_NEON);
+    set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
+    set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
+    set_feature(&cpu->env, ARM_FEATURE_V7MP);
+    set_feature(&cpu->env, ARM_FEATURE_AARCH64);
+}
+#endif
+
+typedef struct ARMCPUInfo {
+    const char *name;
+    void (*initfn)(Object *obj);
+    void (*class_init)(ObjectClass *oc, void *data);
+} ARMCPUInfo;
+
+static const ARMCPUInfo aarch64_cpus[] = {
+#ifdef CONFIG_USER_ONLY
+    { .name = "any",         .initfn = aarch64_any_initfn },
+#endif
+};
+
+static void aarch64_cpu_initfn(Object *obj)
+{
+}
+
+static void aarch64_cpu_finalizefn(Object *obj)
+{
+}
+
+static void aarch64_cpu_class_init(ObjectClass *oc, void *data)
+{
+}
+
+static void aarch64_cpu_register(const ARMCPUInfo *info)
+{
+    TypeInfo type_info = {
+        .parent = TYPE_AARCH64_CPU,
+        .instance_size = sizeof(ARMCPU),
+        .instance_init = info->initfn,
+        .class_size = sizeof(ARMCPUClass),
+        .class_init = info->class_init,
+    };
+
+    type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
+    type_register(&type_info);
+    g_free((void *)type_info.name);
+}
+
+static const TypeInfo aarch64_cpu_type_info = {
+    .name = TYPE_AARCH64_CPU,
+    .parent = TYPE_ARM_CPU,
+    .instance_size = sizeof(ARMCPU),
+    .instance_init = aarch64_cpu_initfn,
+    .instance_finalize = aarch64_cpu_finalizefn,
+    .abstract = true,
+    .class_size = sizeof(AArch64CPUClass),
+    .class_init = aarch64_cpu_class_init,
+};
+
+static void aarch64_cpu_register_types(void)
+{
+    int i;
+
+    type_register_static(&aarch64_cpu_type_info);
+    for (i = 0; i < ARRAY_SIZE(aarch64_cpus); i++) {
+        aarch64_cpu_register(&aarch64_cpus[i]);
+    }
+}
+
+type_init(aarch64_cpu_register_types)