mirror of https://gitee.com/openkylin/qemu.git
943 lines
30 KiB
C
943 lines
30 KiB
C
/*
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* QEMU ARM CPU
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*
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* Copyright (c) 2012 SUSE LINUX Products GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see
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* <http://www.gnu.org/licenses/gpl-2.0.html>
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*/
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#include "cpu.h"
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#include "qemu-common.h"
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#if !defined(CONFIG_USER_ONLY)
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#include "hw/loader.h"
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#endif
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#include "hw/arm/arm.h"
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#include "sysemu/sysemu.h"
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#include "sysemu/kvm.h"
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static void arm_cpu_set_pc(CPUState *cs, vaddr value)
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{
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ARMCPU *cpu = ARM_CPU(cs);
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cpu->env.regs[15] = value;
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}
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static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque)
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{
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/* Reset a single ARMCPRegInfo register */
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ARMCPRegInfo *ri = value;
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ARMCPU *cpu = opaque;
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if (ri->type & ARM_CP_SPECIAL) {
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return;
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}
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if (ri->resetfn) {
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ri->resetfn(&cpu->env, ri);
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return;
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}
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/* A zero offset is never possible as it would be regs[0]
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* so we use it to indicate that reset is being handled elsewhere.
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* This is basically only used for fields in non-core coprocessors
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* (like the pxa2xx ones).
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*/
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if (!ri->fieldoffset) {
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return;
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}
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if (ri->type & ARM_CP_64BIT) {
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CPREG_FIELD64(&cpu->env, ri) = ri->resetvalue;
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} else {
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CPREG_FIELD32(&cpu->env, ri) = ri->resetvalue;
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}
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}
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/* CPUClass::reset() */
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static void arm_cpu_reset(CPUState *s)
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{
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ARMCPU *cpu = ARM_CPU(s);
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ARMCPUClass *acc = ARM_CPU_GET_CLASS(cpu);
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CPUARMState *env = &cpu->env;
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acc->parent_reset(s);
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memset(env, 0, offsetof(CPUARMState, breakpoints));
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g_hash_table_foreach(cpu->cp_regs, cp_reg_reset, cpu);
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env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid;
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env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0;
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env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1;
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if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
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env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
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}
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#if defined(CONFIG_USER_ONLY)
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env->uncached_cpsr = ARM_CPU_MODE_USR;
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/* For user mode we must enable access to coprocessors */
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env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30;
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if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
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env->cp15.c15_cpar = 3;
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} else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
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env->cp15.c15_cpar = 1;
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}
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#else
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/* SVC mode with interrupts disabled. */
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env->uncached_cpsr = ARM_CPU_MODE_SVC | CPSR_A | CPSR_F | CPSR_I;
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/* On ARMv7-M the CPSR_I is the value of the PRIMASK register, and is
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clear at reset. Initial SP and PC are loaded from ROM. */
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if (IS_M(env)) {
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uint32_t pc;
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uint8_t *rom;
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env->uncached_cpsr &= ~CPSR_I;
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rom = rom_ptr(0);
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if (rom) {
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/* We should really use ldl_phys here, in case the guest
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modified flash and reset itself. However images
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loaded via -kernel have not been copied yet, so load the
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values directly from there. */
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env->regs[13] = ldl_p(rom);
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pc = ldl_p(rom + 4);
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env->thumb = pc & 1;
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env->regs[15] = pc & ~1;
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}
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}
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env->vfp.xregs[ARM_VFP_FPEXC] = 0;
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#endif
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set_flush_to_zero(1, &env->vfp.standard_fp_status);
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set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status);
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set_default_nan_mode(1, &env->vfp.standard_fp_status);
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set_float_detect_tininess(float_tininess_before_rounding,
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&env->vfp.fp_status);
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set_float_detect_tininess(float_tininess_before_rounding,
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&env->vfp.standard_fp_status);
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tlb_flush(env, 1);
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/* Reset is a state change for some CPUARMState fields which we
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* bake assumptions about into translated code, so we need to
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* tb_flush().
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*/
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tb_flush(env);
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}
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#ifndef CONFIG_USER_ONLY
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static void arm_cpu_set_irq(void *opaque, int irq, int level)
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{
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ARMCPU *cpu = opaque;
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CPUState *cs = CPU(cpu);
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switch (irq) {
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case ARM_CPU_IRQ:
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if (level) {
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cpu_interrupt(cs, CPU_INTERRUPT_HARD);
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} else {
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cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
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}
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break;
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case ARM_CPU_FIQ:
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if (level) {
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cpu_interrupt(cs, CPU_INTERRUPT_FIQ);
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} else {
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cpu_reset_interrupt(cs, CPU_INTERRUPT_FIQ);
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}
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break;
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default:
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hw_error("arm_cpu_set_irq: Bad interrupt line %d\n", irq);
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}
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}
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static void arm_cpu_kvm_set_irq(void *opaque, int irq, int level)
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{
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#ifdef CONFIG_KVM
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ARMCPU *cpu = opaque;
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CPUState *cs = CPU(cpu);
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int kvm_irq = KVM_ARM_IRQ_TYPE_CPU << KVM_ARM_IRQ_TYPE_SHIFT;
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switch (irq) {
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case ARM_CPU_IRQ:
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kvm_irq |= KVM_ARM_IRQ_CPU_IRQ;
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break;
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case ARM_CPU_FIQ:
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kvm_irq |= KVM_ARM_IRQ_CPU_FIQ;
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break;
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default:
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hw_error("arm_cpu_kvm_set_irq: Bad interrupt line %d\n", irq);
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}
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kvm_irq |= cs->cpu_index << KVM_ARM_IRQ_VCPU_SHIFT;
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kvm_set_irq(kvm_state, kvm_irq, level ? 1 : 0);
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#endif
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}
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#endif
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static inline void set_feature(CPUARMState *env, int feature)
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{
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env->features |= 1ULL << feature;
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}
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static void arm_cpu_initfn(Object *obj)
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{
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CPUState *cs = CPU(obj);
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ARMCPU *cpu = ARM_CPU(obj);
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static bool inited;
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cs->env_ptr = &cpu->env;
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cpu_exec_init(&cpu->env);
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cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal,
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g_free, g_free);
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#ifndef CONFIG_USER_ONLY
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/* Our inbound IRQ and FIQ lines */
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if (kvm_enabled()) {
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qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 2);
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} else {
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qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 2);
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}
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cpu->gt_timer[GTIMER_PHYS] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
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arm_gt_ptimer_cb, cpu);
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cpu->gt_timer[GTIMER_VIRT] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
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arm_gt_vtimer_cb, cpu);
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qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs,
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ARRAY_SIZE(cpu->gt_timer_outputs));
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#endif
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if (tcg_enabled() && !inited) {
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inited = true;
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arm_translate_init();
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}
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}
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static void arm_cpu_finalizefn(Object *obj)
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{
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ARMCPU *cpu = ARM_CPU(obj);
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g_hash_table_destroy(cpu->cp_regs);
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}
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static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
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{
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CPUState *cs = CPU(dev);
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ARMCPU *cpu = ARM_CPU(dev);
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ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev);
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CPUARMState *env = &cpu->env;
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/* Some features automatically imply others: */
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if (arm_feature(env, ARM_FEATURE_V8)) {
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set_feature(env, ARM_FEATURE_V7);
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set_feature(env, ARM_FEATURE_ARM_DIV);
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set_feature(env, ARM_FEATURE_LPAE);
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}
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if (arm_feature(env, ARM_FEATURE_V7)) {
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set_feature(env, ARM_FEATURE_VAPA);
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set_feature(env, ARM_FEATURE_THUMB2);
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set_feature(env, ARM_FEATURE_MPIDR);
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if (!arm_feature(env, ARM_FEATURE_M)) {
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set_feature(env, ARM_FEATURE_V6K);
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} else {
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set_feature(env, ARM_FEATURE_V6);
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}
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}
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if (arm_feature(env, ARM_FEATURE_V6K)) {
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set_feature(env, ARM_FEATURE_V6);
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set_feature(env, ARM_FEATURE_MVFR);
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}
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if (arm_feature(env, ARM_FEATURE_V6)) {
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set_feature(env, ARM_FEATURE_V5);
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if (!arm_feature(env, ARM_FEATURE_M)) {
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set_feature(env, ARM_FEATURE_AUXCR);
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}
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}
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if (arm_feature(env, ARM_FEATURE_V5)) {
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set_feature(env, ARM_FEATURE_V4T);
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}
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if (arm_feature(env, ARM_FEATURE_M)) {
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set_feature(env, ARM_FEATURE_THUMB_DIV);
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}
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if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {
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set_feature(env, ARM_FEATURE_THUMB_DIV);
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}
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if (arm_feature(env, ARM_FEATURE_VFP4)) {
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set_feature(env, ARM_FEATURE_VFP3);
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}
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if (arm_feature(env, ARM_FEATURE_VFP3)) {
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set_feature(env, ARM_FEATURE_VFP);
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}
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if (arm_feature(env, ARM_FEATURE_LPAE)) {
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set_feature(env, ARM_FEATURE_V7MP);
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set_feature(env, ARM_FEATURE_PXN);
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}
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register_cp_regs_for_features(cpu);
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arm_cpu_register_gdb_regs_for_features(cpu);
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init_cpreg_list(cpu);
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cpu_reset(cs);
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qemu_init_vcpu(cs);
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acc->parent_realize(dev, errp);
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}
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/* CPU models */
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static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
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{
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ObjectClass *oc;
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char *typename;
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if (!cpu_model) {
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return NULL;
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}
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typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpu_model);
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oc = object_class_by_name(typename);
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g_free(typename);
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if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU) ||
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object_class_is_abstract(oc)) {
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return NULL;
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}
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return oc;
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}
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static void arm926_initfn(Object *obj)
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{
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ARMCPU *cpu = ARM_CPU(obj);
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set_feature(&cpu->env, ARM_FEATURE_V5);
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set_feature(&cpu->env, ARM_FEATURE_VFP);
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set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
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cpu->midr = 0x41069265;
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cpu->reset_fpsid = 0x41011090;
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cpu->ctr = 0x1dd20d2;
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cpu->reset_sctlr = 0x00090078;
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}
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static void arm946_initfn(Object *obj)
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{
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ARMCPU *cpu = ARM_CPU(obj);
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set_feature(&cpu->env, ARM_FEATURE_V5);
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set_feature(&cpu->env, ARM_FEATURE_MPU);
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set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
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cpu->midr = 0x41059461;
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cpu->ctr = 0x0f004006;
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cpu->reset_sctlr = 0x00000078;
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}
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static void arm1026_initfn(Object *obj)
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{
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ARMCPU *cpu = ARM_CPU(obj);
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set_feature(&cpu->env, ARM_FEATURE_V5);
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set_feature(&cpu->env, ARM_FEATURE_VFP);
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set_feature(&cpu->env, ARM_FEATURE_AUXCR);
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set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
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cpu->midr = 0x4106a262;
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cpu->reset_fpsid = 0x410110a0;
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cpu->ctr = 0x1dd20d2;
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cpu->reset_sctlr = 0x00090078;
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cpu->reset_auxcr = 1;
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{
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/* The 1026 had an IFAR at c6,c0,0,1 rather than the ARMv6 c6,c0,0,2 */
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ARMCPRegInfo ifar = {
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.name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 1,
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.access = PL1_RW,
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.fieldoffset = offsetof(CPUARMState, cp15.c6_insn),
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.resetvalue = 0
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};
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define_one_arm_cp_reg(cpu, &ifar);
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}
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}
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static void arm1136_r2_initfn(Object *obj)
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{
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ARMCPU *cpu = ARM_CPU(obj);
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/* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an
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* older core than plain "arm1136". In particular this does not
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* have the v6K features.
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* These ID register values are correct for 1136 but may be wrong
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* for 1136_r2 (in particular r0p2 does not actually implement most
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* of the ID registers).
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*/
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set_feature(&cpu->env, ARM_FEATURE_V6);
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set_feature(&cpu->env, ARM_FEATURE_VFP);
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set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
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cpu->midr = 0x4107b362;
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cpu->reset_fpsid = 0x410120b4;
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cpu->mvfr0 = 0x11111111;
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cpu->mvfr1 = 0x00000000;
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cpu->ctr = 0x1dd20d2;
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cpu->reset_sctlr = 0x00050078;
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cpu->id_pfr0 = 0x111;
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cpu->id_pfr1 = 0x1;
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cpu->id_dfr0 = 0x2;
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cpu->id_afr0 = 0x3;
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cpu->id_mmfr0 = 0x01130003;
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cpu->id_mmfr1 = 0x10030302;
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cpu->id_mmfr2 = 0x01222110;
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cpu->id_isar0 = 0x00140011;
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cpu->id_isar1 = 0x12002111;
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cpu->id_isar2 = 0x11231111;
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cpu->id_isar3 = 0x01102131;
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cpu->id_isar4 = 0x141;
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cpu->reset_auxcr = 7;
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}
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static void arm1136_initfn(Object *obj)
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{
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ARMCPU *cpu = ARM_CPU(obj);
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set_feature(&cpu->env, ARM_FEATURE_V6K);
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set_feature(&cpu->env, ARM_FEATURE_V6);
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set_feature(&cpu->env, ARM_FEATURE_VFP);
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set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
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cpu->midr = 0x4117b363;
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cpu->reset_fpsid = 0x410120b4;
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cpu->mvfr0 = 0x11111111;
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cpu->mvfr1 = 0x00000000;
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cpu->ctr = 0x1dd20d2;
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cpu->reset_sctlr = 0x00050078;
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cpu->id_pfr0 = 0x111;
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cpu->id_pfr1 = 0x1;
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cpu->id_dfr0 = 0x2;
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cpu->id_afr0 = 0x3;
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cpu->id_mmfr0 = 0x01130003;
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cpu->id_mmfr1 = 0x10030302;
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cpu->id_mmfr2 = 0x01222110;
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cpu->id_isar0 = 0x00140011;
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cpu->id_isar1 = 0x12002111;
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cpu->id_isar2 = 0x11231111;
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cpu->id_isar3 = 0x01102131;
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cpu->id_isar4 = 0x141;
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cpu->reset_auxcr = 7;
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}
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static void arm1176_initfn(Object *obj)
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{
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ARMCPU *cpu = ARM_CPU(obj);
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set_feature(&cpu->env, ARM_FEATURE_V6K);
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set_feature(&cpu->env, ARM_FEATURE_VFP);
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set_feature(&cpu->env, ARM_FEATURE_VAPA);
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set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
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set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
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cpu->midr = 0x410fb767;
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cpu->reset_fpsid = 0x410120b5;
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cpu->mvfr0 = 0x11111111;
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cpu->mvfr1 = 0x00000000;
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cpu->ctr = 0x1dd20d2;
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cpu->reset_sctlr = 0x00050078;
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cpu->id_pfr0 = 0x111;
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cpu->id_pfr1 = 0x11;
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cpu->id_dfr0 = 0x33;
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cpu->id_afr0 = 0;
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cpu->id_mmfr0 = 0x01130003;
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cpu->id_mmfr1 = 0x10030302;
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cpu->id_mmfr2 = 0x01222100;
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cpu->id_isar0 = 0x0140011;
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cpu->id_isar1 = 0x12002111;
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cpu->id_isar2 = 0x11231121;
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|
cpu->id_isar3 = 0x01102131;
|
|
cpu->id_isar4 = 0x01141;
|
|
cpu->reset_auxcr = 7;
|
|
}
|
|
|
|
static void arm11mpcore_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V6K);
|
|
set_feature(&cpu->env, ARM_FEATURE_VFP);
|
|
set_feature(&cpu->env, ARM_FEATURE_VAPA);
|
|
set_feature(&cpu->env, ARM_FEATURE_MPIDR);
|
|
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
|
|
cpu->midr = 0x410fb022;
|
|
cpu->reset_fpsid = 0x410120b4;
|
|
cpu->mvfr0 = 0x11111111;
|
|
cpu->mvfr1 = 0x00000000;
|
|
cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */
|
|
cpu->id_pfr0 = 0x111;
|
|
cpu->id_pfr1 = 0x1;
|
|
cpu->id_dfr0 = 0;
|
|
cpu->id_afr0 = 0x2;
|
|
cpu->id_mmfr0 = 0x01100103;
|
|
cpu->id_mmfr1 = 0x10020302;
|
|
cpu->id_mmfr2 = 0x01222000;
|
|
cpu->id_isar0 = 0x00100011;
|
|
cpu->id_isar1 = 0x12002111;
|
|
cpu->id_isar2 = 0x11221011;
|
|
cpu->id_isar3 = 0x01102131;
|
|
cpu->id_isar4 = 0x141;
|
|
cpu->reset_auxcr = 1;
|
|
}
|
|
|
|
static void cortex_m3_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V7);
|
|
set_feature(&cpu->env, ARM_FEATURE_M);
|
|
cpu->midr = 0x410fc231;
|
|
}
|
|
|
|
static void arm_v7m_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
#ifndef CONFIG_USER_ONLY
|
|
CPUClass *cc = CPU_CLASS(oc);
|
|
|
|
cc->do_interrupt = arm_v7m_cpu_do_interrupt;
|
|
#endif
|
|
}
|
|
|
|
static const ARMCPRegInfo cortexa8_cp_reginfo[] = {
|
|
{ .name = "L2LOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 0,
|
|
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
|
|
{ .name = "L2AUXCR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
|
|
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
|
|
REGINFO_SENTINEL
|
|
};
|
|
|
|
static void cortex_a8_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V7);
|
|
set_feature(&cpu->env, ARM_FEATURE_VFP3);
|
|
set_feature(&cpu->env, ARM_FEATURE_NEON);
|
|
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
|
|
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
|
|
cpu->midr = 0x410fc080;
|
|
cpu->reset_fpsid = 0x410330c0;
|
|
cpu->mvfr0 = 0x11110222;
|
|
cpu->mvfr1 = 0x00011100;
|
|
cpu->ctr = 0x82048004;
|
|
cpu->reset_sctlr = 0x00c50078;
|
|
cpu->id_pfr0 = 0x1031;
|
|
cpu->id_pfr1 = 0x11;
|
|
cpu->id_dfr0 = 0x400;
|
|
cpu->id_afr0 = 0;
|
|
cpu->id_mmfr0 = 0x31100003;
|
|
cpu->id_mmfr1 = 0x20000000;
|
|
cpu->id_mmfr2 = 0x01202000;
|
|
cpu->id_mmfr3 = 0x11;
|
|
cpu->id_isar0 = 0x00101111;
|
|
cpu->id_isar1 = 0x12112111;
|
|
cpu->id_isar2 = 0x21232031;
|
|
cpu->id_isar3 = 0x11112131;
|
|
cpu->id_isar4 = 0x00111142;
|
|
cpu->clidr = (1 << 27) | (2 << 24) | 3;
|
|
cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */
|
|
cpu->ccsidr[1] = 0x2007e01a; /* 16k L1 icache. */
|
|
cpu->ccsidr[2] = 0xf0000000; /* No L2 icache. */
|
|
cpu->reset_auxcr = 2;
|
|
define_arm_cp_regs(cpu, cortexa8_cp_reginfo);
|
|
}
|
|
|
|
static const ARMCPRegInfo cortexa9_cp_reginfo[] = {
|
|
/* power_control should be set to maximum latency. Again,
|
|
* default to 0 and set by private hook
|
|
*/
|
|
{ .name = "A9_PWRCTL", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 0,
|
|
.access = PL1_RW, .resetvalue = 0,
|
|
.fieldoffset = offsetof(CPUARMState, cp15.c15_power_control) },
|
|
{ .name = "A9_DIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 1,
|
|
.access = PL1_RW, .resetvalue = 0,
|
|
.fieldoffset = offsetof(CPUARMState, cp15.c15_diagnostic) },
|
|
{ .name = "A9_PWRDIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 2,
|
|
.access = PL1_RW, .resetvalue = 0,
|
|
.fieldoffset = offsetof(CPUARMState, cp15.c15_power_diagnostic) },
|
|
{ .name = "NEONBUSY", .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0,
|
|
.access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
|
|
/* TLB lockdown control */
|
|
{ .name = "TLB_LOCKR", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 2,
|
|
.access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
|
|
{ .name = "TLB_LOCKW", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 4,
|
|
.access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
|
|
{ .name = "TLB_VA", .cp = 15, .crn = 15, .crm = 5, .opc1 = 5, .opc2 = 2,
|
|
.access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
|
|
{ .name = "TLB_PA", .cp = 15, .crn = 15, .crm = 6, .opc1 = 5, .opc2 = 2,
|
|
.access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
|
|
{ .name = "TLB_ATTR", .cp = 15, .crn = 15, .crm = 7, .opc1 = 5, .opc2 = 2,
|
|
.access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
|
|
REGINFO_SENTINEL
|
|
};
|
|
|
|
static void cortex_a9_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V7);
|
|
set_feature(&cpu->env, ARM_FEATURE_VFP3);
|
|
set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
|
|
set_feature(&cpu->env, ARM_FEATURE_NEON);
|
|
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
|
|
/* Note that A9 supports the MP extensions even for
|
|
* A9UP and single-core A9MP (which are both different
|
|
* and valid configurations; we don't model A9UP).
|
|
*/
|
|
set_feature(&cpu->env, ARM_FEATURE_V7MP);
|
|
cpu->midr = 0x410fc090;
|
|
cpu->reset_fpsid = 0x41033090;
|
|
cpu->mvfr0 = 0x11110222;
|
|
cpu->mvfr1 = 0x01111111;
|
|
cpu->ctr = 0x80038003;
|
|
cpu->reset_sctlr = 0x00c50078;
|
|
cpu->id_pfr0 = 0x1031;
|
|
cpu->id_pfr1 = 0x11;
|
|
cpu->id_dfr0 = 0x000;
|
|
cpu->id_afr0 = 0;
|
|
cpu->id_mmfr0 = 0x00100103;
|
|
cpu->id_mmfr1 = 0x20000000;
|
|
cpu->id_mmfr2 = 0x01230000;
|
|
cpu->id_mmfr3 = 0x00002111;
|
|
cpu->id_isar0 = 0x00101111;
|
|
cpu->id_isar1 = 0x13112111;
|
|
cpu->id_isar2 = 0x21232041;
|
|
cpu->id_isar3 = 0x11112131;
|
|
cpu->id_isar4 = 0x00111142;
|
|
cpu->clidr = (1 << 27) | (1 << 24) | 3;
|
|
cpu->ccsidr[0] = 0xe00fe015; /* 16k L1 dcache. */
|
|
cpu->ccsidr[1] = 0x200fe015; /* 16k L1 icache. */
|
|
{
|
|
ARMCPRegInfo cbar = {
|
|
.name = "CBAR", .cp = 15, .crn = 15, .crm = 0, .opc1 = 4,
|
|
.opc2 = 0, .access = PL1_R|PL3_W, .resetvalue = cpu->reset_cbar,
|
|
.fieldoffset = offsetof(CPUARMState, cp15.c15_config_base_address)
|
|
};
|
|
define_one_arm_cp_reg(cpu, &cbar);
|
|
define_arm_cp_regs(cpu, cortexa9_cp_reginfo);
|
|
}
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
static int a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri,
|
|
uint64_t *value)
|
|
{
|
|
/* Linux wants the number of processors from here.
|
|
* Might as well set the interrupt-controller bit too.
|
|
*/
|
|
*value = ((smp_cpus - 1) << 24) | (1 << 23);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static const ARMCPRegInfo cortexa15_cp_reginfo[] = {
|
|
#ifndef CONFIG_USER_ONLY
|
|
{ .name = "L2CTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
|
|
.access = PL1_RW, .resetvalue = 0, .readfn = a15_l2ctlr_read,
|
|
.writefn = arm_cp_write_ignore, },
|
|
#endif
|
|
{ .name = "L2ECTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 3,
|
|
.access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
|
|
REGINFO_SENTINEL
|
|
};
|
|
|
|
static void cortex_a15_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V7);
|
|
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_GENERIC_TIMER);
|
|
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
|
|
set_feature(&cpu->env, ARM_FEATURE_LPAE);
|
|
cpu->midr = 0x412fc0f1;
|
|
cpu->reset_fpsid = 0x410430f0;
|
|
cpu->mvfr0 = 0x10110222;
|
|
cpu->mvfr1 = 0x11111111;
|
|
cpu->ctr = 0x8444c004;
|
|
cpu->reset_sctlr = 0x00c50078;
|
|
cpu->id_pfr0 = 0x00001131;
|
|
cpu->id_pfr1 = 0x00011011;
|
|
cpu->id_dfr0 = 0x02010555;
|
|
cpu->id_afr0 = 0x00000000;
|
|
cpu->id_mmfr0 = 0x10201105;
|
|
cpu->id_mmfr1 = 0x20000000;
|
|
cpu->id_mmfr2 = 0x01240000;
|
|
cpu->id_mmfr3 = 0x02102211;
|
|
cpu->id_isar0 = 0x02101110;
|
|
cpu->id_isar1 = 0x13112111;
|
|
cpu->id_isar2 = 0x21232041;
|
|
cpu->id_isar3 = 0x11112131;
|
|
cpu->id_isar4 = 0x10011142;
|
|
cpu->clidr = 0x0a200023;
|
|
cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */
|
|
cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */
|
|
cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */
|
|
define_arm_cp_regs(cpu, cortexa15_cp_reginfo);
|
|
}
|
|
|
|
static void ti925t_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V4T);
|
|
set_feature(&cpu->env, ARM_FEATURE_OMAPCP);
|
|
cpu->midr = ARM_CPUID_TI925T;
|
|
cpu->ctr = 0x5109149;
|
|
cpu->reset_sctlr = 0x00000070;
|
|
}
|
|
|
|
static void sa1100_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
|
|
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
|
|
cpu->midr = 0x4401A11B;
|
|
cpu->reset_sctlr = 0x00000070;
|
|
}
|
|
|
|
static void sa1110_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
|
|
set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
|
|
cpu->midr = 0x6901B119;
|
|
cpu->reset_sctlr = 0x00000070;
|
|
}
|
|
|
|
static void pxa250_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
cpu->midr = 0x69052100;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa255_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
cpu->midr = 0x69052d00;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa260_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
cpu->midr = 0x69052903;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa261_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
cpu->midr = 0x69052d05;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa262_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
cpu->midr = 0x69052d06;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa270a0_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
|
|
cpu->midr = 0x69054110;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa270a1_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
|
|
cpu->midr = 0x69054111;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa270b0_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
|
|
cpu->midr = 0x69054112;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa270b1_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
|
|
cpu->midr = 0x69054113;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa270c0_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
|
|
cpu->midr = 0x69054114;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void pxa270c5_initfn(Object *obj)
|
|
{
|
|
ARMCPU *cpu = ARM_CPU(obj);
|
|
set_feature(&cpu->env, ARM_FEATURE_V5);
|
|
set_feature(&cpu->env, ARM_FEATURE_XSCALE);
|
|
set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
|
|
cpu->midr = 0x69054117;
|
|
cpu->ctr = 0xd172172;
|
|
cpu->reset_sctlr = 0x00000078;
|
|
}
|
|
|
|
static void arm_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);
|
|
cpu->midr = 0xffffffff;
|
|
}
|
|
|
|
typedef struct ARMCPUInfo {
|
|
const char *name;
|
|
void (*initfn)(Object *obj);
|
|
void (*class_init)(ObjectClass *oc, void *data);
|
|
} ARMCPUInfo;
|
|
|
|
static const ARMCPUInfo arm_cpus[] = {
|
|
{ .name = "arm926", .initfn = arm926_initfn },
|
|
{ .name = "arm946", .initfn = arm946_initfn },
|
|
{ .name = "arm1026", .initfn = arm1026_initfn },
|
|
/* What QEMU calls "arm1136-r2" is actually the 1136 r0p2, i.e. an
|
|
* older core than plain "arm1136". In particular this does not
|
|
* have the v6K features.
|
|
*/
|
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{ .name = "arm1136-r2", .initfn = arm1136_r2_initfn },
|
|
{ .name = "arm1136", .initfn = arm1136_initfn },
|
|
{ .name = "arm1176", .initfn = arm1176_initfn },
|
|
{ .name = "arm11mpcore", .initfn = arm11mpcore_initfn },
|
|
{ .name = "cortex-m3", .initfn = cortex_m3_initfn,
|
|
.class_init = arm_v7m_class_init },
|
|
{ .name = "cortex-a8", .initfn = cortex_a8_initfn },
|
|
{ .name = "cortex-a9", .initfn = cortex_a9_initfn },
|
|
{ .name = "cortex-a15", .initfn = cortex_a15_initfn },
|
|
{ .name = "ti925t", .initfn = ti925t_initfn },
|
|
{ .name = "sa1100", .initfn = sa1100_initfn },
|
|
{ .name = "sa1110", .initfn = sa1110_initfn },
|
|
{ .name = "pxa250", .initfn = pxa250_initfn },
|
|
{ .name = "pxa255", .initfn = pxa255_initfn },
|
|
{ .name = "pxa260", .initfn = pxa260_initfn },
|
|
{ .name = "pxa261", .initfn = pxa261_initfn },
|
|
{ .name = "pxa262", .initfn = pxa262_initfn },
|
|
/* "pxa270" is an alias for "pxa270-a0" */
|
|
{ .name = "pxa270", .initfn = pxa270a0_initfn },
|
|
{ .name = "pxa270-a0", .initfn = pxa270a0_initfn },
|
|
{ .name = "pxa270-a1", .initfn = pxa270a1_initfn },
|
|
{ .name = "pxa270-b0", .initfn = pxa270b0_initfn },
|
|
{ .name = "pxa270-b1", .initfn = pxa270b1_initfn },
|
|
{ .name = "pxa270-c0", .initfn = pxa270c0_initfn },
|
|
{ .name = "pxa270-c5", .initfn = pxa270c5_initfn },
|
|
{ .name = "any", .initfn = arm_any_initfn },
|
|
};
|
|
|
|
static void arm_cpu_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
ARMCPUClass *acc = ARM_CPU_CLASS(oc);
|
|
CPUClass *cc = CPU_CLASS(acc);
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
|
|
acc->parent_realize = dc->realize;
|
|
dc->realize = arm_cpu_realizefn;
|
|
|
|
acc->parent_reset = cc->reset;
|
|
cc->reset = arm_cpu_reset;
|
|
|
|
cc->class_by_name = arm_cpu_class_by_name;
|
|
cc->do_interrupt = arm_cpu_do_interrupt;
|
|
cc->dump_state = arm_cpu_dump_state;
|
|
cc->set_pc = arm_cpu_set_pc;
|
|
cc->gdb_read_register = arm_cpu_gdb_read_register;
|
|
cc->gdb_write_register = arm_cpu_gdb_write_register;
|
|
#ifndef CONFIG_USER_ONLY
|
|
cc->get_phys_page_debug = arm_cpu_get_phys_page_debug;
|
|
cc->vmsd = &vmstate_arm_cpu;
|
|
#endif
|
|
cc->gdb_num_core_regs = 26;
|
|
cc->gdb_core_xml_file = "arm-core.xml";
|
|
}
|
|
|
|
static void cpu_register(const ARMCPUInfo *info)
|
|
{
|
|
TypeInfo type_info = {
|
|
.parent = TYPE_ARM_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 arm_cpu_type_info = {
|
|
.name = TYPE_ARM_CPU,
|
|
.parent = TYPE_CPU,
|
|
.instance_size = sizeof(ARMCPU),
|
|
.instance_init = arm_cpu_initfn,
|
|
.instance_finalize = arm_cpu_finalizefn,
|
|
.abstract = true,
|
|
.class_size = sizeof(ARMCPUClass),
|
|
.class_init = arm_cpu_class_init,
|
|
};
|
|
|
|
static void arm_cpu_register_types(void)
|
|
{
|
|
int i;
|
|
|
|
type_register_static(&arm_cpu_type_info);
|
|
for (i = 0; i < ARRAY_SIZE(arm_cpus); i++) {
|
|
cpu_register(&arm_cpus[i]);
|
|
}
|
|
}
|
|
|
|
type_init(arm_cpu_register_types)
|