mirror of https://gitee.com/openkylin/qemu.git
134 lines
3.6 KiB
C
134 lines
3.6 KiB
C
/*
|
|
* 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 */
|
|
}
|
|
#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)
|