/* * QEMU ARM CPU * * Copyright (c) 2012 SUSE LINUX Products GmbH * * 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 * */ #include "qemu/osdep.h" #include "qemu/error-report.h" #include "qapi/error.h" #include "cpu.h" #include "internals.h" #include "qemu-common.h" #include "exec/exec-all.h" #include "hw/qdev-properties.h" #if !defined(CONFIG_USER_ONLY) #include "hw/loader.h" #endif #include "hw/arm/arm.h" #include "sysemu/sysemu.h" #include "sysemu/hw_accel.h" #include "kvm_arm.h" static void arm_cpu_set_pc(CPUState *cs, vaddr value) { ARMCPU *cpu = ARM_CPU(cs); cpu->env.regs[15] = value; } static bool arm_cpu_has_work(CPUState *cs) { ARMCPU *cpu = ARM_CPU(cs); return (cpu->power_state != PSCI_OFF) && cs->interrupt_request & (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD | CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ | CPU_INTERRUPT_EXITTB); } void arm_register_el_change_hook(ARMCPU *cpu, ARMELChangeHook *hook, void *opaque) { /* We currently only support registering a single hook function */ assert(!cpu->el_change_hook); cpu->el_change_hook = hook; cpu->el_change_hook_opaque = opaque; } static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque) { /* Reset a single ARMCPRegInfo register */ ARMCPRegInfo *ri = value; ARMCPU *cpu = opaque; if (ri->type & (ARM_CP_SPECIAL | ARM_CP_ALIAS)) { return; } if (ri->resetfn) { ri->resetfn(&cpu->env, ri); return; } /* A zero offset is never possible as it would be regs[0] * so we use it to indicate that reset is being handled elsewhere. * This is basically only used for fields in non-core coprocessors * (like the pxa2xx ones). */ if (!ri->fieldoffset) { return; } if (cpreg_field_is_64bit(ri)) { CPREG_FIELD64(&cpu->env, ri) = ri->resetvalue; } else { CPREG_FIELD32(&cpu->env, ri) = ri->resetvalue; } } static void cp_reg_check_reset(gpointer key, gpointer value, gpointer opaque) { /* Purely an assertion check: we've already done reset once, * so now check that running the reset for the cpreg doesn't * change its value. This traps bugs where two different cpregs * both try to reset the same state field but to different values. */ ARMCPRegInfo *ri = value; ARMCPU *cpu = opaque; uint64_t oldvalue, newvalue; if (ri->type & (ARM_CP_SPECIAL | ARM_CP_ALIAS | ARM_CP_NO_RAW)) { return; } oldvalue = read_raw_cp_reg(&cpu->env, ri); cp_reg_reset(key, value, opaque); newvalue = read_raw_cp_reg(&cpu->env, ri); assert(oldvalue == newvalue); } /* CPUClass::reset() */ static void arm_cpu_reset(CPUState *s) { ARMCPU *cpu = ARM_CPU(s); ARMCPUClass *acc = ARM_CPU_GET_CLASS(cpu); CPUARMState *env = &cpu->env; acc->parent_reset(s); memset(env, 0, offsetof(CPUARMState, end_reset_fields)); g_hash_table_foreach(cpu->cp_regs, cp_reg_reset, cpu); g_hash_table_foreach(cpu->cp_regs, cp_reg_check_reset, cpu); env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid; env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0; env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1; env->vfp.xregs[ARM_VFP_MVFR2] = cpu->mvfr2; cpu->power_state = cpu->start_powered_off ? PSCI_OFF : PSCI_ON; s->halted = cpu->start_powered_off; if (arm_feature(env, ARM_FEATURE_IWMMXT)) { env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q'; } if (arm_feature(env, ARM_FEATURE_AARCH64)) { /* 64 bit CPUs always start in 64 bit mode */ env->aarch64 = 1; #if defined(CONFIG_USER_ONLY) env->pstate = PSTATE_MODE_EL0t; /* Userspace expects access to DC ZVA, CTL_EL0 and the cache ops */ env->cp15.sctlr_el[1] |= SCTLR_UCT | SCTLR_UCI | SCTLR_DZE; /* and to the FP/Neon instructions */ env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 20, 2, 3); #else /* Reset into the highest available EL */ if (arm_feature(env, ARM_FEATURE_EL3)) { env->pstate = PSTATE_MODE_EL3h; } else if (arm_feature(env, ARM_FEATURE_EL2)) { env->pstate = PSTATE_MODE_EL2h; } else { env->pstate = PSTATE_MODE_EL1h; } env->pc = cpu->rvbar; #endif } else { #if defined(CONFIG_USER_ONLY) /* Userspace expects access to cp10 and cp11 for FP/Neon */ env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 20, 4, 0xf); #endif } #if defined(CONFIG_USER_ONLY) env->uncached_cpsr = ARM_CPU_MODE_USR; /* For user mode we must enable access to coprocessors */ env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30; if (arm_feature(env, ARM_FEATURE_IWMMXT)) { env->cp15.c15_cpar = 3; } else if (arm_feature(env, ARM_FEATURE_XSCALE)) { env->cp15.c15_cpar = 1; } #else /* SVC mode with interrupts disabled. */ env->uncached_cpsr = ARM_CPU_MODE_SVC; env->daif = PSTATE_D | PSTATE_A | PSTATE_I | PSTATE_F; if (arm_feature(env, ARM_FEATURE_M)) { uint32_t initial_msp; /* Loaded from 0x0 */ uint32_t initial_pc; /* Loaded from 0x4 */ uint8_t *rom; /* For M profile we store FAULTMASK and PRIMASK in the * PSTATE F and I bits; these are both clear at reset. */ env->daif &= ~(PSTATE_I | PSTATE_F); /* The reset value of this bit is IMPDEF, but ARM recommends * that it resets to 1, so QEMU always does that rather than making * it dependent on CPU model. */ env->v7m.ccr = R_V7M_CCR_STKALIGN_MASK; /* Unlike A/R profile, M profile defines the reset LR value */ env->regs[14] = 0xffffffff; /* Load the initial SP and PC from the vector table at address 0 */ rom = rom_ptr(0); if (rom) { /* Address zero is covered by ROM which hasn't yet been * copied into physical memory. */ initial_msp = ldl_p(rom); initial_pc = ldl_p(rom + 4); } else { /* Address zero not covered by a ROM blob, or the ROM blob * is in non-modifiable memory and this is a second reset after * it got copied into memory. In the latter case, rom_ptr * will return a NULL pointer and we should use ldl_phys instead. */ initial_msp = ldl_phys(s->as, 0); initial_pc = ldl_phys(s->as, 4); } env->regs[13] = initial_msp & 0xFFFFFFFC; env->regs[15] = initial_pc & ~1; env->thumb = initial_pc & 1; } /* AArch32 has a hard highvec setting of 0xFFFF0000. If we are currently * executing as AArch32 then check if highvecs are enabled and * adjust the PC accordingly. */ if (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_V) { env->regs[15] = 0xFFFF0000; } env->vfp.xregs[ARM_VFP_FPEXC] = 0; #endif set_flush_to_zero(1, &env->vfp.standard_fp_status); set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status); set_default_nan_mode(1, &env->vfp.standard_fp_status); set_float_detect_tininess(float_tininess_before_rounding, &env->vfp.fp_status); set_float_detect_tininess(float_tininess_before_rounding, &env->vfp.standard_fp_status); #ifndef CONFIG_USER_ONLY if (kvm_enabled()) { kvm_arm_reset_vcpu(cpu); } #endif hw_breakpoint_update_all(cpu); hw_watchpoint_update_all(cpu); } bool arm_cpu_exec_interrupt(CPUState *cs, int interrupt_request) { CPUClass *cc = CPU_GET_CLASS(cs); CPUARMState *env = cs->env_ptr; uint32_t cur_el = arm_current_el(env); bool secure = arm_is_secure(env); uint32_t target_el; uint32_t excp_idx; bool ret = false; if (interrupt_request & CPU_INTERRUPT_FIQ) { excp_idx = EXCP_FIQ; target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure); if (arm_excp_unmasked(cs, excp_idx, target_el)) { cs->exception_index = excp_idx; env->exception.target_el = target_el; cc->do_interrupt(cs); ret = true; } } if (interrupt_request & CPU_INTERRUPT_HARD) { excp_idx = EXCP_IRQ; target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure); if (arm_excp_unmasked(cs, excp_idx, target_el)) { cs->exception_index = excp_idx; env->exception.target_el = target_el; cc->do_interrupt(cs); ret = true; } } if (interrupt_request & CPU_INTERRUPT_VIRQ) { excp_idx = EXCP_VIRQ; target_el = 1; if (arm_excp_unmasked(cs, excp_idx, target_el)) { cs->exception_index = excp_idx; env->exception.target_el = target_el; cc->do_interrupt(cs); ret = true; } } if (interrupt_request & CPU_INTERRUPT_VFIQ) { excp_idx = EXCP_VFIQ; target_el = 1; if (arm_excp_unmasked(cs, excp_idx, target_el)) { cs->exception_index = excp_idx; env->exception.target_el = target_el; cc->do_interrupt(cs); ret = true; } } return ret; } #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) static void arm_v7m_unassigned_access(CPUState *cpu, hwaddr addr, bool is_write, bool is_exec, int opaque, unsigned size) { ARMCPU *arm = ARM_CPU(cpu); CPUARMState *env = &arm->env; /* ARMv7-M interrupt return works by loading a magic value into the PC. * On real hardware the load causes the return to occur. The qemu * implementation performs the jump normally, then does the exception * return by throwing a special exception when when the CPU tries to * execute code at the magic address. */ if (env->v7m.exception != 0 && addr >= 0xfffffff0 && is_exec) { cpu->exception_index = EXCP_EXCEPTION_EXIT; cpu_loop_exit(cpu); } /* In real hardware an attempt to access parts of the address space * with nothing there will usually cause an external abort. * However our QEMU board models are often missing device models where * the guest can boot anyway with the default read-as-zero/writes-ignored * behaviour that you get without a QEMU unassigned_access hook. * So just return here to retain that default behaviour. */ } static bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request) { CPUClass *cc = CPU_GET_CLASS(cs); ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; bool ret = false; if (interrupt_request & CPU_INTERRUPT_FIQ && !(env->daif & PSTATE_F)) { cs->exception_index = EXCP_FIQ; cc->do_interrupt(cs); ret = true; } /* ARMv7-M interrupt return works by loading a magic value * into the PC. On real hardware the load causes the * return to occur. The qemu implementation performs the * jump normally, then does the exception return when the * CPU tries to execute code at the magic address. * This will cause the magic PC value to be pushed to * the stack if an interrupt occurred at the wrong time. * We avoid this by disabling interrupts when * pc contains a magic address. */ if (interrupt_request & CPU_INTERRUPT_HARD && !(env->daif & PSTATE_I) && (env->regs[15] < 0xfffffff0)) { cs->exception_index = EXCP_IRQ; cc->do_interrupt(cs); ret = true; } return ret; } #endif #ifndef CONFIG_USER_ONLY static void arm_cpu_set_irq(void *opaque, int irq, int level) { ARMCPU *cpu = opaque; CPUARMState *env = &cpu->env; CPUState *cs = CPU(cpu); static const int mask[] = { [ARM_CPU_IRQ] = CPU_INTERRUPT_HARD, [ARM_CPU_FIQ] = CPU_INTERRUPT_FIQ, [ARM_CPU_VIRQ] = CPU_INTERRUPT_VIRQ, [ARM_CPU_VFIQ] = CPU_INTERRUPT_VFIQ }; switch (irq) { case ARM_CPU_VIRQ: case ARM_CPU_VFIQ: assert(arm_feature(env, ARM_FEATURE_EL2)); /* fall through */ case ARM_CPU_IRQ: case ARM_CPU_FIQ: if (level) { cpu_interrupt(cs, mask[irq]); } else { cpu_reset_interrupt(cs, mask[irq]); } break; default: g_assert_not_reached(); } } static void arm_cpu_kvm_set_irq(void *opaque, int irq, int level) { #ifdef CONFIG_KVM ARMCPU *cpu = opaque; CPUState *cs = CPU(cpu); int kvm_irq = KVM_ARM_IRQ_TYPE_CPU << KVM_ARM_IRQ_TYPE_SHIFT; switch (irq) { case ARM_CPU_IRQ: kvm_irq |= KVM_ARM_IRQ_CPU_IRQ; break; case ARM_CPU_FIQ: kvm_irq |= KVM_ARM_IRQ_CPU_FIQ; break; default: g_assert_not_reached(); } kvm_irq |= cs->cpu_index << KVM_ARM_IRQ_VCPU_SHIFT; kvm_set_irq(kvm_state, kvm_irq, level ? 1 : 0); #endif } static bool arm_cpu_virtio_is_big_endian(CPUState *cs) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; cpu_synchronize_state(cs); return arm_cpu_data_is_big_endian(env); } #endif static inline void set_feature(CPUARMState *env, int feature) { env->features |= 1ULL << feature; } static inline void unset_feature(CPUARMState *env, int feature) { env->features &= ~(1ULL << feature); } static int print_insn_thumb1(bfd_vma pc, disassemble_info *info) { return print_insn_arm(pc | 1, info); } static int arm_read_memory_func(bfd_vma memaddr, bfd_byte *b, int length, struct disassemble_info *info) { assert(info->read_memory_inner_func); assert((info->flags & INSN_ARM_BE32) == 0 || length == 2 || length == 4); if ((info->flags & INSN_ARM_BE32) != 0 && length == 2) { assert(info->endian == BFD_ENDIAN_LITTLE); return info->read_memory_inner_func(memaddr ^ 2, (bfd_byte *)b, 2, info); } else { return info->read_memory_inner_func(memaddr, b, length, info); } } static void arm_disas_set_info(CPUState *cpu, disassemble_info *info) { ARMCPU *ac = ARM_CPU(cpu); CPUARMState *env = &ac->env; if (is_a64(env)) { /* We might not be compiled with the A64 disassembler * because it needs a C++ compiler. Leave print_insn * unset in this case to use the caller default behaviour. */ #if defined(CONFIG_ARM_A64_DIS) info->print_insn = print_insn_arm_a64; #endif } else if (env->thumb) { info->print_insn = print_insn_thumb1; } else { info->print_insn = print_insn_arm; } if (bswap_code(arm_sctlr_b(env))) { #ifdef TARGET_WORDS_BIGENDIAN info->endian = BFD_ENDIAN_LITTLE; #else info->endian = BFD_ENDIAN_BIG; #endif } if (info->read_memory_inner_func == NULL) { info->read_memory_inner_func = info->read_memory_func; info->read_memory_func = arm_read_memory_func; } info->flags &= ~INSN_ARM_BE32; if (arm_sctlr_b(env)) { info->flags |= INSN_ARM_BE32; } } static void arm_cpu_initfn(Object *obj) { CPUState *cs = CPU(obj); ARMCPU *cpu = ARM_CPU(obj); static bool inited; cs->env_ptr = &cpu->env; cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal, g_free, g_free); #ifndef CONFIG_USER_ONLY /* Our inbound IRQ and FIQ lines */ if (kvm_enabled()) { /* VIRQ and VFIQ are unused with KVM but we add them to maintain * the same interface as non-KVM CPUs. */ qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 4); } else { qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 4); } cpu->gt_timer[GTIMER_PHYS] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE, arm_gt_ptimer_cb, cpu); cpu->gt_timer[GTIMER_VIRT] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE, arm_gt_vtimer_cb, cpu); cpu->gt_timer[GTIMER_HYP] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE, arm_gt_htimer_cb, cpu); cpu->gt_timer[GTIMER_SEC] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE, arm_gt_stimer_cb, cpu); qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs, ARRAY_SIZE(cpu->gt_timer_outputs)); qdev_init_gpio_out_named(DEVICE(cpu), &cpu->gicv3_maintenance_interrupt, "gicv3-maintenance-interrupt", 1); #endif /* DTB consumers generally don't in fact care what the 'compatible' * string is, so always provide some string and trust that a hypothetical * picky DTB consumer will also provide a helpful error message. */ cpu->dtb_compatible = "qemu,unknown"; cpu->psci_version = 1; /* By default assume PSCI v0.1 */ cpu->kvm_target = QEMU_KVM_ARM_TARGET_NONE; if (tcg_enabled()) { cpu->psci_version = 2; /* TCG implements PSCI 0.2 */ if (!inited) { inited = true; arm_translate_init(); } } } static Property arm_cpu_reset_cbar_property = DEFINE_PROP_UINT64("reset-cbar", ARMCPU, reset_cbar, 0); static Property arm_cpu_reset_hivecs_property = DEFINE_PROP_BOOL("reset-hivecs", ARMCPU, reset_hivecs, false); static Property arm_cpu_rvbar_property = DEFINE_PROP_UINT64("rvbar", ARMCPU, rvbar, 0); static Property arm_cpu_has_el2_property = DEFINE_PROP_BOOL("has_el2", ARMCPU, has_el2, true); static Property arm_cpu_has_el3_property = DEFINE_PROP_BOOL("has_el3", ARMCPU, has_el3, true); static Property arm_cpu_cfgend_property = DEFINE_PROP_BOOL("cfgend", ARMCPU, cfgend, false); /* use property name "pmu" to match other archs and virt tools */ static Property arm_cpu_has_pmu_property = DEFINE_PROP_BOOL("pmu", ARMCPU, has_pmu, true); static Property arm_cpu_has_mpu_property = DEFINE_PROP_BOOL("has-mpu", ARMCPU, has_mpu, true); static Property arm_cpu_pmsav7_dregion_property = DEFINE_PROP_UINT32("pmsav7-dregion", ARMCPU, pmsav7_dregion, 16); static void arm_cpu_post_init(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); if (arm_feature(&cpu->env, ARM_FEATURE_CBAR) || arm_feature(&cpu->env, ARM_FEATURE_CBAR_RO)) { qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_cbar_property, &error_abort); } if (!arm_feature(&cpu->env, ARM_FEATURE_M)) { qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_hivecs_property, &error_abort); } if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { qdev_property_add_static(DEVICE(obj), &arm_cpu_rvbar_property, &error_abort); } if (arm_feature(&cpu->env, ARM_FEATURE_EL3)) { /* Add the has_el3 state CPU property only if EL3 is allowed. This will * prevent "has_el3" from existing on CPUs which cannot support EL3. */ qdev_property_add_static(DEVICE(obj), &arm_cpu_has_el3_property, &error_abort); #ifndef CONFIG_USER_ONLY object_property_add_link(obj, "secure-memory", TYPE_MEMORY_REGION, (Object **)&cpu->secure_memory, qdev_prop_allow_set_link_before_realize, OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort); #endif } if (arm_feature(&cpu->env, ARM_FEATURE_EL2)) { qdev_property_add_static(DEVICE(obj), &arm_cpu_has_el2_property, &error_abort); } if (arm_feature(&cpu->env, ARM_FEATURE_PMU)) { qdev_property_add_static(DEVICE(obj), &arm_cpu_has_pmu_property, &error_abort); } if (arm_feature(&cpu->env, ARM_FEATURE_MPU)) { qdev_property_add_static(DEVICE(obj), &arm_cpu_has_mpu_property, &error_abort); if (arm_feature(&cpu->env, ARM_FEATURE_V7)) { qdev_property_add_static(DEVICE(obj), &arm_cpu_pmsav7_dregion_property, &error_abort); } } qdev_property_add_static(DEVICE(obj), &arm_cpu_cfgend_property, &error_abort); } static void arm_cpu_finalizefn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); g_hash_table_destroy(cpu->cp_regs); } static void arm_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); ARMCPU *cpu = ARM_CPU(dev); ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev); CPUARMState *env = &cpu->env; int pagebits; Error *local_err = NULL; cpu_exec_realizefn(cs, &local_err); if (local_err != NULL) { error_propagate(errp, local_err); return; } /* Some features automatically imply others: */ if (arm_feature(env, ARM_FEATURE_V8)) { set_feature(env, ARM_FEATURE_V7); set_feature(env, ARM_FEATURE_ARM_DIV); set_feature(env, ARM_FEATURE_LPAE); } if (arm_feature(env, ARM_FEATURE_V7)) { set_feature(env, ARM_FEATURE_VAPA); set_feature(env, ARM_FEATURE_THUMB2); set_feature(env, ARM_FEATURE_MPIDR); if (!arm_feature(env, ARM_FEATURE_M)) { set_feature(env, ARM_FEATURE_V6K); } else { set_feature(env, ARM_FEATURE_V6); } /* Always define VBAR for V7 CPUs even if it doesn't exist in * non-EL3 configs. This is needed by some legacy boards. */ set_feature(env, ARM_FEATURE_VBAR); } if (arm_feature(env, ARM_FEATURE_V6K)) { set_feature(env, ARM_FEATURE_V6); set_feature(env, ARM_FEATURE_MVFR); } if (arm_feature(env, ARM_FEATURE_V6)) { set_feature(env, ARM_FEATURE_V5); if (!arm_feature(env, ARM_FEATURE_M)) { set_feature(env, ARM_FEATURE_AUXCR); } } if (arm_feature(env, ARM_FEATURE_V5)) { set_feature(env, ARM_FEATURE_V4T); } if (arm_feature(env, ARM_FEATURE_M)) { set_feature(env, ARM_FEATURE_THUMB_DIV); } if (arm_feature(env, ARM_FEATURE_ARM_DIV)) { set_feature(env, ARM_FEATURE_THUMB_DIV); } if (arm_feature(env, ARM_FEATURE_VFP4)) { set_feature(env, ARM_FEATURE_VFP3); set_feature(env, ARM_FEATURE_VFP_FP16); } if (arm_feature(env, ARM_FEATURE_VFP3)) { set_feature(env, ARM_FEATURE_VFP); } if (arm_feature(env, ARM_FEATURE_LPAE)) { set_feature(env, ARM_FEATURE_V7MP); set_feature(env, ARM_FEATURE_PXN); } if (arm_feature(env, ARM_FEATURE_CBAR_RO)) { set_feature(env, ARM_FEATURE_CBAR); } if (arm_feature(env, ARM_FEATURE_THUMB2) && !arm_feature(env, ARM_FEATURE_M)) { set_feature(env, ARM_FEATURE_THUMB_DSP); } if (arm_feature(env, ARM_FEATURE_V7) && !arm_feature(env, ARM_FEATURE_M) && !arm_feature(env, ARM_FEATURE_MPU)) { /* v7VMSA drops support for the old ARMv5 tiny pages, so we * can use 4K pages. */ pagebits = 12; } else { /* For CPUs which might have tiny 1K pages, or which have an * MPU and might have small region sizes, stick with 1K pages. */ pagebits = 10; } if (!set_preferred_target_page_bits(pagebits)) { /* This can only ever happen for hotplugging a CPU, or if * the board code incorrectly creates a CPU which it has * promised via minimum_page_size that it will not. */ error_setg(errp, "This CPU requires a smaller page size than the " "system is using"); return; } /* This cpu-id-to-MPIDR affinity is used only for TCG; KVM will override it. * We don't support setting cluster ID ([16..23]) (known as Aff2 * in later ARM ARM versions), or any of the higher affinity level fields, * so these bits always RAZ. */ if (cpu->mp_affinity == ARM64_AFFINITY_INVALID) { uint32_t Aff1 = cs->cpu_index / ARM_DEFAULT_CPUS_PER_CLUSTER; uint32_t Aff0 = cs->cpu_index % ARM_DEFAULT_CPUS_PER_CLUSTER; cpu->mp_affinity = (Aff1 << ARM_AFF1_SHIFT) | Aff0; } if (cpu->reset_hivecs) { cpu->reset_sctlr |= (1 << 13); } if (cpu->cfgend) { if (arm_feature(&cpu->env, ARM_FEATURE_V7)) { cpu->reset_sctlr |= SCTLR_EE; } else { cpu->reset_sctlr |= SCTLR_B; } } if (!cpu->has_el3) { /* If the has_el3 CPU property is disabled then we need to disable the * feature. */ unset_feature(env, ARM_FEATURE_EL3); /* Disable the security extension feature bits in the processor feature * registers as well. These are id_pfr1[7:4] and id_aa64pfr0[15:12]. */ cpu->id_pfr1 &= ~0xf0; cpu->id_aa64pfr0 &= ~0xf000; } if (!cpu->has_el2) { unset_feature(env, ARM_FEATURE_EL2); } if (!cpu->has_pmu) { cpu->has_pmu = false; unset_feature(env, ARM_FEATURE_PMU); } if (!arm_feature(env, ARM_FEATURE_EL2)) { /* Disable the hypervisor feature bits in the processor feature * registers if we don't have EL2. These are id_pfr1[15:12] and * id_aa64pfr0_el1[11:8]. */ cpu->id_aa64pfr0 &= ~0xf00; cpu->id_pfr1 &= ~0xf000; } if (!cpu->has_mpu) { unset_feature(env, ARM_FEATURE_MPU); } if (arm_feature(env, ARM_FEATURE_MPU) && arm_feature(env, ARM_FEATURE_V7)) { uint32_t nr = cpu->pmsav7_dregion; if (nr > 0xff) { error_setg(errp, "PMSAv7 MPU #regions invalid %" PRIu32, nr); return; } if (nr) { env->pmsav7.drbar = g_new0(uint32_t, nr); env->pmsav7.drsr = g_new0(uint32_t, nr); env->pmsav7.dracr = g_new0(uint32_t, nr); } } if (arm_feature(env, ARM_FEATURE_EL3)) { set_feature(env, ARM_FEATURE_VBAR); } register_cp_regs_for_features(cpu); arm_cpu_register_gdb_regs_for_features(cpu); init_cpreg_list(cpu); #ifndef CONFIG_USER_ONLY if (cpu->has_el3) { cs->num_ases = 2; } else { cs->num_ases = 1; } if (cpu->has_el3) { AddressSpace *as; if (!cpu->secure_memory) { cpu->secure_memory = cs->memory; } as = address_space_init_shareable(cpu->secure_memory, "cpu-secure-memory"); cpu_address_space_init(cs, as, ARMASIdx_S); } cpu_address_space_init(cs, address_space_init_shareable(cs->memory, "cpu-memory"), ARMASIdx_NS); #endif qemu_init_vcpu(cs); cpu_reset(cs); acc->parent_realize(dev, errp); } static ObjectClass *arm_cpu_class_by_name(const char *cpu_model) { ObjectClass *oc; char *typename; char **cpuname; if (!cpu_model) { return NULL; } cpuname = g_strsplit(cpu_model, ",", 1); typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpuname[0]); oc = object_class_by_name(typename); g_strfreev(cpuname); g_free(typename); if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU) || object_class_is_abstract(oc)) { return NULL; } return oc; } /* CPU models. These are not needed for the AArch64 linux-user build. */ #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) static void arm926_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,arm926"; set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_VFP); set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN); cpu->midr = 0x41069265; cpu->reset_fpsid = 0x41011090; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00090078; } static void arm946_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,arm946"; set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_MPU); set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); cpu->midr = 0x41059461; cpu->ctr = 0x0f004006; cpu->reset_sctlr = 0x00000078; } static void arm1026_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,arm1026"; set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_VFP); set_feature(&cpu->env, ARM_FEATURE_AUXCR); set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN); cpu->midr = 0x4106a262; cpu->reset_fpsid = 0x410110a0; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00090078; cpu->reset_auxcr = 1; { /* The 1026 had an IFAR at c6,c0,0,1 rather than the ARMv6 c6,c0,0,2 */ ARMCPRegInfo ifar = { .name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 1, .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.ifar_ns), .resetvalue = 0 }; define_one_arm_cp_reg(cpu, &ifar); } } static void arm1136_r2_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); /* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an * older core than plain "arm1136". In particular this does not * have the v6K features. * These ID register values are correct for 1136 but may be wrong * for 1136_r2 (in particular r0p2 does not actually implement most * of the ID registers). */ cpu->dtb_compatible = "arm,arm1136"; set_feature(&cpu->env, ARM_FEATURE_V6); set_feature(&cpu->env, ARM_FEATURE_VFP); set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG); set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS); cpu->midr = 0x4107b362; cpu->reset_fpsid = 0x410120b4; cpu->mvfr0 = 0x11111111; cpu->mvfr1 = 0x00000000; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; cpu->id_dfr0 = 0x2; cpu->id_afr0 = 0x3; cpu->id_mmfr0 = 0x01130003; cpu->id_mmfr1 = 0x10030302; cpu->id_mmfr2 = 0x01222110; cpu->id_isar0 = 0x00140011; cpu->id_isar1 = 0x12002111; cpu->id_isar2 = 0x11231111; cpu->id_isar3 = 0x01102131; cpu->id_isar4 = 0x141; cpu->reset_auxcr = 7; } static void arm1136_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,arm1136"; set_feature(&cpu->env, ARM_FEATURE_V6K); set_feature(&cpu->env, ARM_FEATURE_V6); set_feature(&cpu->env, ARM_FEATURE_VFP); set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG); set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS); cpu->midr = 0x4117b363; cpu->reset_fpsid = 0x410120b4; cpu->mvfr0 = 0x11111111; cpu->mvfr1 = 0x00000000; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; cpu->id_dfr0 = 0x2; cpu->id_afr0 = 0x3; cpu->id_mmfr0 = 0x01130003; cpu->id_mmfr1 = 0x10030302; cpu->id_mmfr2 = 0x01222110; cpu->id_isar0 = 0x00140011; cpu->id_isar1 = 0x12002111; cpu->id_isar2 = 0x11231111; cpu->id_isar3 = 0x01102131; cpu->id_isar4 = 0x141; cpu->reset_auxcr = 7; } static void arm1176_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,arm1176"; 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_DUMMY_C15_REGS); set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG); set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS); set_feature(&cpu->env, ARM_FEATURE_EL3); cpu->midr = 0x410fb767; cpu->reset_fpsid = 0x410120b5; cpu->mvfr0 = 0x11111111; cpu->mvfr1 = 0x00000000; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x11; cpu->id_dfr0 = 0x33; cpu->id_afr0 = 0; cpu->id_mmfr0 = 0x01130003; cpu->id_mmfr1 = 0x10030302; cpu->id_mmfr2 = 0x01222100; cpu->id_isar0 = 0x0140011; cpu->id_isar1 = 0x12002111; cpu->id_isar2 = 0x11231121; cpu->id_isar3 = 0x01102131; cpu->id_isar4 = 0x01141; cpu->reset_auxcr = 7; } static void arm11mpcore_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,arm11mpcore"; 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 cortex_m4_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_M); set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); cpu->midr = 0x410fc240; /* r0p0 */ } static void arm_v7m_class_init(ObjectClass *oc, void *data) { CPUClass *cc = CPU_CLASS(oc); #ifndef CONFIG_USER_ONLY cc->do_interrupt = arm_v7m_cpu_do_interrupt; #endif cc->do_unassigned_access = arm_v7m_unassigned_access; cc->cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt; } static const ARMCPRegInfo cortexr5_cp_reginfo[] = { /* Dummy the TCM region regs for the moment */ { .name = "ATCM", .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 0, .access = PL1_RW, .type = ARM_CP_CONST }, { .name = "BTCM", .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 1, .access = PL1_RW, .type = ARM_CP_CONST }, REGINFO_SENTINEL }; static void cortex_r5_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_THUMB_DIV); set_feature(&cpu->env, ARM_FEATURE_ARM_DIV); set_feature(&cpu->env, ARM_FEATURE_V7MP); set_feature(&cpu->env, ARM_FEATURE_MPU); cpu->midr = 0x411fc153; /* r1p3 */ cpu->id_pfr0 = 0x0131; cpu->id_pfr1 = 0x001; cpu->id_dfr0 = 0x010400; cpu->id_afr0 = 0x0; cpu->id_mmfr0 = 0x0210030; cpu->id_mmfr1 = 0x00000000; cpu->id_mmfr2 = 0x01200000; cpu->id_mmfr3 = 0x0211; cpu->id_isar0 = 0x2101111; cpu->id_isar1 = 0x13112111; cpu->id_isar2 = 0x21232141; cpu->id_isar3 = 0x01112131; cpu->id_isar4 = 0x0010142; cpu->id_isar5 = 0x0; cpu->mp_is_up = true; define_arm_cp_regs(cpu, cortexr5_cp_reginfo); } 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); cpu->dtb_compatible = "arm,cortex-a8"; 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); set_feature(&cpu->env, ARM_FEATURE_EL3); cpu->midr = 0x410fc080; cpu->reset_fpsid = 0x410330c0; cpu->mvfr0 = 0x11110222; cpu->mvfr1 = 0x00011111; 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->dbgdidr = 0x15141000; 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); cpu->dtb_compatible = "arm,cortex-a9"; 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); set_feature(&cpu->env, ARM_FEATURE_EL3); /* 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); set_feature(&cpu->env, ARM_FEATURE_CBAR); 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->dbgdidr = 0x35141000; cpu->clidr = (1 << 27) | (1 << 24) | 3; cpu->ccsidr[0] = 0xe00fe019; /* 16k L1 dcache. */ cpu->ccsidr[1] = 0x200fe019; /* 16k L1 icache. */ define_arm_cp_regs(cpu, cortexa9_cp_reginfo); } #ifndef CONFIG_USER_ONLY static uint64_t a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri) { /* Linux wants the number of processors from here. * Might as well set the interrupt-controller bit too. */ return ((smp_cpus - 1) << 24) | (1 << 23); } #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_a7_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,cortex-a7"; set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_VFP4); 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_CBAR_RO); set_feature(&cpu->env, ARM_FEATURE_LPAE); set_feature(&cpu->env, ARM_FEATURE_EL3); cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A7; cpu->midr = 0x410fc075; cpu->reset_fpsid = 0x41023075; cpu->mvfr0 = 0x10110222; cpu->mvfr1 = 0x11111111; cpu->ctr = 0x84448003; cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x00001131; cpu->id_pfr1 = 0x00011011; cpu->id_dfr0 = 0x02010555; cpu->pmceid0 = 0x00000000; cpu->pmceid1 = 0x00000000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x10101105; cpu->id_mmfr1 = 0x40000000; cpu->id_mmfr2 = 0x01240000; cpu->id_mmfr3 = 0x02102211; cpu->id_isar0 = 0x01101110; cpu->id_isar1 = 0x13112111; cpu->id_isar2 = 0x21232041; cpu->id_isar3 = 0x11112131; cpu->id_isar4 = 0x10011142; cpu->dbgdidr = 0x3515f005; 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); /* Same as A15 */ } static void cortex_a15_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); cpu->dtb_compatible = "arm,cortex-a15"; set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_VFP4); 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_CBAR_RO); set_feature(&cpu->env, ARM_FEATURE_LPAE); set_feature(&cpu->env, ARM_FEATURE_EL3); cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A15; 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->pmceid0 = 0x0000000; cpu->pmceid1 = 0x00000000; 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->dbgdidr = 0x3515f021; 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); cpu->dtb_compatible = "intel,sa1100"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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); cpu->dtb_compatible = "marvell,xscale"; 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; } #ifdef CONFIG_USER_ONLY 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_NEON); set_feature(&cpu->env, ARM_FEATURE_THUMB2EE); set_feature(&cpu->env, ARM_FEATURE_V8_AES); set_feature(&cpu->env, ARM_FEATURE_V8_SHA1); set_feature(&cpu->env, ARM_FEATURE_V8_SHA256); set_feature(&cpu->env, ARM_FEATURE_V8_PMULL); set_feature(&cpu->env, ARM_FEATURE_CRC); cpu->midr = 0xffffffff; } #endif #endif /* !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) */ typedef struct ARMCPUInfo { const char *name; void (*initfn)(Object *obj); void (*class_init)(ObjectClass *oc, void *data); } ARMCPUInfo; static const ARMCPUInfo arm_cpus[] = { #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) { .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. */ { .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-m4", .initfn = cortex_m4_initfn, .class_init = arm_v7m_class_init }, { .name = "cortex-r5", .initfn = cortex_r5_initfn }, { .name = "cortex-a7", .initfn = cortex_a7_initfn }, { .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 }, #ifdef CONFIG_USER_ONLY { .name = "any", .initfn = arm_any_initfn }, #endif #endif { .name = NULL } }; static Property arm_cpu_properties[] = { DEFINE_PROP_BOOL("start-powered-off", ARMCPU, start_powered_off, false), DEFINE_PROP_UINT32("psci-conduit", ARMCPU, psci_conduit, 0), DEFINE_PROP_UINT32("midr", ARMCPU, midr, 0), DEFINE_PROP_UINT64("mp-affinity", ARMCPU, mp_affinity, ARM64_AFFINITY_INVALID), DEFINE_PROP_END_OF_LIST() }; #ifdef CONFIG_USER_ONLY static int arm_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw, int mmu_idx) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; env->exception.vaddress = address; if (rw == 2) { cs->exception_index = EXCP_PREFETCH_ABORT; } else { cs->exception_index = EXCP_DATA_ABORT; } return 1; } #endif static gchar *arm_gdb_arch_name(CPUState *cs) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; if (arm_feature(env, ARM_FEATURE_IWMMXT)) { return g_strdup("iwmmxt"); } return g_strdup("arm"); } 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; dc->props = arm_cpu_properties; acc->parent_reset = cc->reset; cc->reset = arm_cpu_reset; cc->class_by_name = arm_cpu_class_by_name; cc->has_work = arm_cpu_has_work; cc->cpu_exec_interrupt = arm_cpu_exec_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; #ifdef CONFIG_USER_ONLY cc->handle_mmu_fault = arm_cpu_handle_mmu_fault; #else cc->do_interrupt = arm_cpu_do_interrupt; cc->do_unaligned_access = arm_cpu_do_unaligned_access; cc->get_phys_page_attrs_debug = arm_cpu_get_phys_page_attrs_debug; cc->asidx_from_attrs = arm_asidx_from_attrs; cc->vmsd = &vmstate_arm_cpu; cc->virtio_is_big_endian = arm_cpu_virtio_is_big_endian; cc->write_elf64_note = arm_cpu_write_elf64_note; cc->write_elf32_note = arm_cpu_write_elf32_note; #endif cc->gdb_num_core_regs = 26; cc->gdb_core_xml_file = "arm-core.xml"; cc->gdb_arch_name = arm_gdb_arch_name; cc->gdb_stop_before_watchpoint = true; cc->debug_excp_handler = arm_debug_excp_handler; cc->debug_check_watchpoint = arm_debug_check_watchpoint; #if !defined(CONFIG_USER_ONLY) cc->adjust_watchpoint_address = arm_adjust_watchpoint_address; #endif cc->disas_set_info = arm_disas_set_info; } 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_post_init = arm_cpu_post_init, .instance_finalize = arm_cpu_finalizefn, .abstract = true, .class_size = sizeof(ARMCPUClass), .class_init = arm_cpu_class_init, }; static void arm_cpu_register_types(void) { const ARMCPUInfo *info = arm_cpus; type_register_static(&arm_cpu_type_info); while (info->name) { cpu_register(info); info++; } } type_init(arm_cpu_register_types)