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/*
* 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);
cpu->ctr = 0x80030003; /* 32 byte I and D cacheline size, VIPT icache */
cpu->dcz_blocksize = 7; /* 512 bytes */
}
#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
{ .name = NULL }
};
static void aarch64_cpu_initfn(Object *obj)
{
}
static void aarch64_cpu_finalizefn(Object *obj)
{
}
static void aarch64_cpu_set_pc(CPUState *cs, vaddr value)
{
ARMCPU *cpu = ARM_CPU(cs);
/*
* TODO: this will need updating for system emulation,
* when the core may be in AArch32 mode.
*/
cpu->env.pc = value;
}
static void aarch64_cpu_class_init(ObjectClass *oc, void *data)
{
CPUClass *cc = CPU_CLASS(oc);
cc->dump_state = aarch64_cpu_dump_state;
cc->set_pc = aarch64_cpu_set_pc;
cc->gdb_read_register = aarch64_cpu_gdb_read_register;
cc->gdb_write_register = aarch64_cpu_gdb_write_register;
cc->gdb_num_core_regs = 34;
cc->gdb_core_xml_file = "aarch64-core.xml";
}
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)
{
const ARMCPUInfo *info = aarch64_cpus;
type_register_static(&aarch64_cpu_type_info);
while (info->name) {
aarch64_cpu_register(info);
info++;
}
}
type_init(aarch64_cpu_register_types)
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