/* * 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. *f * 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 "qapi/error.h" #include "cpu.h" #include "internals.h" #include "qemu-common.h" #include "exec/exec-all.h" #include "qapi/qmp/qerror.h" #include "hw/arm/arm.h" #include "sysemu/sysemu.h" #include "fpu/softfloat.h" #include "uc_priv.h" static void arm_cpu_set_pc(CPUState *cs, vaddr value) { ARMCPU *cpu = ARM_CPU(NULL, cs); cpu->env.regs[15] = value; } static bool arm_cpu_has_work(CPUState *cs) { ARMCPU *cpu = ARM_CPU(NULL, cs); return !cpu->powered_off && cs->interrupt_request & (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD | CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ | CPU_INTERRUPT_EXITTB); } void arm_register_pre_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, void *opaque) { ARMELChangeHook *entry = g_new0(ARMELChangeHook, 1); entry->hook = hook; entry->opaque = opaque; QLIST_INSERT_HEAD(&cpu->pre_el_change_hooks, entry, node); } void arm_register_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, void *opaque) { ARMELChangeHook *entry = g_new0(ARMELChangeHook, 1); entry->hook = hook; entry->opaque = opaque; QLIST_INSERT_HEAD(&cpu->el_change_hooks, entry, node); } 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) { CPUARMState *env = s->env_ptr; ARMCPU *cpu = ARM_CPU(env->uc, s); ARMCPUClass *acc = ARM_CPU_GET_CLASS(env->uc, cpu); 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->powered_off = cpu->start_powered_off; 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 */ uint32_t vecbase = 0; if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { env->v7m.secure = true; } else { /* This bit resets to 0 if security is supported, but 1 if * it is not. The bit is not present in v7M, but we set it * here so we can avoid having to make checks on it conditional * on ARM_FEATURE_V8 (we don't let the guest see the bit). */ env->v7m.aircr = R_V7M_AIRCR_BFHFNMINS_MASK; } /* In v7M 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. In v8M it is RES1. */ env->v7m.ccr[M_REG_NS] = R_V7M_CCR_STKALIGN_MASK; env->v7m.ccr[M_REG_S] = R_V7M_CCR_STKALIGN_MASK; if (arm_feature(env, ARM_FEATURE_V8)) { /* in v8M the NONBASETHRDENA bit [0] is RES1 */ env->v7m.ccr[M_REG_NS] |= R_V7M_CCR_NONBASETHRDENA_MASK; env->v7m.ccr[M_REG_S] |= R_V7M_CCR_NONBASETHRDENA_MASK; } /* Unlike A/R profile, M profile defines the reset LR value */ env->regs[14] = 0xffffffff; env->v7m.vecbase[M_REG_S] = cpu->init_svtor & 0xffffff80; #if 0 uint8_t *rom; /* Load the initial SP and PC from offset 0 and 4 in the vector table */ vecbase = env->v7m.vecbase[env->v7m.secure]; rom = rom_ptr(vecbase); 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 #endif { /* 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, vecbase); initial_pc = ldl_phys(s->as, vecbase + 4); } env->regs[13] = initial_msp & 0xFFFFFFFC; env->regs[15] = initial_pc & ~1; env->thumb = initial_pc & 1; } // Unicorn: force Thumb mode by setting of uc_open() env->thumb = env->uc->thumb; /* 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; } /* M profile requires that reset clears the exclusive monitor; * A profile does not, but clearing it makes more sense than having it * set with an exclusive access on address zero. */ arm_clear_exclusive(env); env->vfp.xregs[ARM_VFP_FPEXC] = 0; #endif if (arm_feature(env, ARM_FEATURE_PMSA)) { if (cpu->pmsav7_dregion > 0) { if (arm_feature(env, ARM_FEATURE_V8)) { memset(env->pmsav8.rbar[M_REG_NS], 0, sizeof(*env->pmsav8.rbar[M_REG_NS]) * cpu->pmsav7_dregion); memset(env->pmsav8.rlar[M_REG_NS], 0, sizeof(*env->pmsav8.rlar[M_REG_NS]) * cpu->pmsav7_dregion); if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { memset(env->pmsav8.rbar[M_REG_S], 0, sizeof(*env->pmsav8.rbar[M_REG_S]) * cpu->pmsav7_dregion); memset(env->pmsav8.rlar[M_REG_S], 0, sizeof(*env->pmsav8.rlar[M_REG_S]) * cpu->pmsav7_dregion); } } else if (arm_feature(env, ARM_FEATURE_V7)) { memset(env->pmsav7.drbar, 0, sizeof(*env->pmsav7.drbar) * cpu->pmsav7_dregion); memset(env->pmsav7.drsr, 0, sizeof(*env->pmsav7.drsr) * cpu->pmsav7_dregion); memset(env->pmsav7.dracr, 0, sizeof(*env->pmsav7.dracr) * cpu->pmsav7_dregion); } } env->pmsav7.rnr[M_REG_NS] = 0; env->pmsav7.rnr[M_REG_S] = 0; env->pmsav8.mair0[M_REG_NS] = 0; env->pmsav8.mair0[M_REG_S] = 0; env->pmsav8.mair1[M_REG_NS] = 0; env->pmsav8.mair1[M_REG_S] = 0; } if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { if (cpu->sau_sregion > 0) { memset(env->sau.rbar, 0, sizeof(*env->sau.rbar) * cpu->sau_sregion); memset(env->sau.rlar, 0, sizeof(*env->sau.rlar) * cpu->sau_sregion); } env->sau.rnr = 0; /* SAU_CTRL reset value is IMPDEF; we choose 0, which is what * the Cortex-M33 does. */ env->sau.ctrl = 0; } 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); set_float_detect_tininess(float_tininess_before_rounding, &env->vfp.fp_status_f16); hw_breakpoint_update_all(cpu); hw_watchpoint_update_all(cpu); } bool arm_cpu_exec_interrupt(CPUState *cs, int interrupt_request) { CPUARMState *env = cs->env_ptr; CPUClass *cc = CPU_GET_CLASS(env->uc, cs); 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 bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request) { CPUARMState *env = cs->env_ptr; CPUClass *cc = CPU_GET_CLASS(env->uc, cs); bool ret = false; /* ARMv7-M interrupt masking works differently than -A or -R. * There is no FIQ/IRQ distinction. Instead of I and F bits * masking FIQ and IRQ interrupts, an exception is taken only * if it is higher priority than the current execution priority * (which depends on state like BASEPRI, FAULTMASK and the * currently active exception). */ if (interrupt_request & CPU_INTERRUPT_HARD /*&& (armv7m_nvic_can_take_pending_exception(env->nvic)) */) { cs->exception_index = EXCP_IRQ; cc->do_interrupt(cs); ret = true; } return ret; } #endif static QEMU_UNUSED_FUNC bool arm_cpu_is_big_endian(CPUState *cs) { ARMCPU *cpu = ARM_CPU(NULL, cs); CPUARMState *env = &cpu->env; int cur_el; // UNICORN: Commented out //cpu_synchronize_state(cs); /* In 32bit guest endianness is determined by looking at CPSR's E bit */ if (!is_a64(env)) { return (env->uncached_cpsr & CPSR_E) ? 1 : 0; } cur_el = arm_current_el(env); if (cur_el == 0) { return (env->cp15.sctlr_el[1] & SCTLR_E0E) != 0; } return (env->cp15.sctlr_el[cur_el] & SCTLR_EE) != 0; } 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); } #define ARM_CPUS_PER_CLUSTER 8 static void arm_cpu_initfn(struct uc_struct *uc, Object *obj, void *opaque) { CPUState *cs = CPU(obj); ARMCPU *cpu = ARM_CPU(uc, obj); uint32_t Aff1, Aff0; cs->env_ptr = &cpu->env; cpu_exec_init(cs, &error_abort, opaque); cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal, g_free, g_free); QLIST_INIT(&cpu->pre_el_change_hooks); QLIST_INIT(&cpu->el_change_hooks); /* 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. */ Aff1 = cs->cpu_index / ARM_CPUS_PER_CLUSTER; Aff0 = cs->cpu_index % ARM_CPUS_PER_CLUSTER; cpu->mp_affinity = (Aff1 << ARM_AFF1_SHIFT) | Aff0; #if 0 #ifndef CONFIG_USER_ONLY /* Our inbound IRQ and FIQ lines */ 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)); #endif #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(uc)) { cpu->psci_version = 2; /* TCG implements PSCI 0.2 */ } } static void arm_cpu_post_init(struct uc_struct *uc, Object *obj) { ARMCPU *cpu = ARM_CPU(uc, obj); /* M profile implies PMSA. We have to do this here rather than * in realize with the other feature-implication checks because * we look at the PMSA bit to see if we should add some properties. */ if (arm_feature(&cpu->env, ARM_FEATURE_M)) { set_feature(&cpu->env, ARM_FEATURE_PMSA); } 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 /* Unicorn: if'd out */ #if 0 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);*/ qdev_property_add_static(DEVICE(obj), &arm_cpu_initsvtor_property, &error_abort); #endif #endif } } static void arm_cpu_finalizefn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, obj); ARMELChangeHook *hook, *next; g_hash_table_destroy(cpu->cp_regs); QLIST_FOREACH_SAFE(hook, &cpu->pre_el_change_hooks, node, next) { QLIST_REMOVE(hook, node); g_free(hook); } QLIST_FOREACH_SAFE(hook, &cpu->el_change_hooks, node, next) { QLIST_REMOVE(hook, node); g_free(hook); } } static int arm_cpu_realizefn(struct uc_struct *uc, DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); ARMCPU *cpu = ARM_CPU(uc, dev); ARMCPUClass *acc = ARM_CPU_GET_CLASS(uc, dev); CPUARMState *env = &cpu->env; /* 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); set_feature(env, ARM_FEATURE_JAZELLE); 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 (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) { unset_feature(env, ARM_FEATURE_PMU); cpu->id_aa64dfr0 &= ~0xf00; } 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; } /* MPU can be configured out of a PMSA CPU either by setting has-mpu * to false or by setting pmsav7-dregion to 0. */ if (!cpu->has_mpu) { cpu->pmsav7_dregion = 0; } if (cpu->pmsav7_dregion == 0) { cpu->has_mpu = false; } if (arm_feature(env, ARM_FEATURE_PMSA) && arm_feature(env, ARM_FEATURE_V7)) { uint32_t nr = cpu->pmsav7_dregion; if (nr > 0xff) { error_setg(errp, "PMSAv7 MPU #regions invalid %" PRIu32 "\n", nr); return -1; } if (nr) { if (arm_feature(env, ARM_FEATURE_V8)) { /* PMSAv8 */ env->pmsav8.rbar[M_REG_NS] = g_new0(uint32_t, nr); env->pmsav8.rlar[M_REG_NS] = g_new0(uint32_t, nr); if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { env->pmsav8.rbar[M_REG_S] = g_new0(uint32_t, nr); env->pmsav8.rlar[M_REG_S] = g_new0(uint32_t, nr); } } else { 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_M_SECURITY)) { uint32_t nr = cpu->sau_sregion; if (nr > 0xff) { error_setg(errp, "v8M SAU #regions invalid %" PRIu32, nr); return -1; } if (nr) { env->sau.rbar = g_new0(uint32_t, nr); env->sau.rlar = 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); #ifndef CONFIG_USER_ONLY if (cpu->has_el3 || arm_feature(env, ARM_FEATURE_M_SECURITY)) { cs->num_ases = 2; if (!cpu->secure_memory) { cpu->secure_memory = cs->memory; } cpu_address_space_init(cs, ARMASIdx_S, "cpu-secure-memory", cpu->secure_memory); } else { cs->num_ases = 1; } cpu_address_space_init(cs, ARMASIdx_NS, "cpu-memory", cs->memory); /* No core_count specified, default to smp_cpus. */ if (cpu->core_count == -1) { cpu->core_count = smp_cpus; } #endif init_cpreg_list(cpu); qemu_init_vcpu(cs); cpu_reset(cs); acc->parent_realize(uc, dev, errp); return 0; } static ObjectClass *arm_cpu_class_by_name(struct uc_struct *uc, const char *cpu_model) { ObjectClass *oc; char *typename; char **cpuname; const char *cpunamestr; cpuname = g_strsplit(cpu_model, ",", 1); cpunamestr = cpuname[0]; #ifdef CONFIG_USER_ONLY /* For backwards compatibility usermode emulation allows "-cpu any", * which has the same semantics as "-cpu max". */ if (!strcmp(cpunamestr, "any")) { cpunamestr = "max"; } #endif typename = g_strdup_printf(ARM_CPU_TYPE_NAME("%s"), cpunamestr); oc = object_class_by_name(uc, typename); g_strfreev(cpuname); g_free(typename); if (!oc || !object_class_dynamic_cast(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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); set_feature(&cpu->env, ARM_FEATURE_JAZELLE); cpu->midr = 0x41069265; cpu->reset_fpsid = 0x41011090; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00090078; } static void arm946_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, obj); cpu->dtb_compatible = "arm,arm946"; set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_PMSA); set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); cpu->midr = 0x41059461; cpu->ctr = 0x0f004006; cpu->reset_sctlr = 0x00000078; } static void arm1026_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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); set_feature(&cpu->env, ARM_FEATURE_JAZELLE); 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 = { 0 }; ifar.name = "IFAR"; ifar.cp = 15; ifar.crn = 6; ifar.crm = 0; ifar.opc1 = 0; ifar.opc2 = 1; ifar.access = PL1_RW; ifar.fieldoffset = offsetof(CPUARMState, cp15.ifar_ns), ifar.resetvalue = 0; define_one_arm_cp_reg(cpu, &ifar); } } static void arm1136_r2_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, obj); set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_M); set_feature(&cpu->env, ARM_FEATURE_M_MAIN); cpu->midr = 0x410fc231; cpu->pmsav7_dregion = 8; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; cpu->id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x00000030; cpu->id_mmfr1 = 0x00000000; cpu->id_mmfr2 = 0x00000000; cpu->id_mmfr3 = 0x00000000; cpu->id_isar0 = 0x01141110; cpu->id_isar1 = 0x02111000; cpu->id_isar2 = 0x21112231; cpu->id_isar3 = 0x01111110; cpu->id_isar4 = 0x01310102; cpu->id_isar5 = 0x00000000; } static void cortex_m4_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, obj); set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_M); set_feature(&cpu->env, ARM_FEATURE_M_MAIN); set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); cpu->midr = 0x410fc240; /* r0p0 */ cpu->pmsav7_dregion = 8; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; cpu->id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x00000030; cpu->id_mmfr1 = 0x00000000; cpu->id_mmfr2 = 0x00000000; cpu->id_mmfr3 = 0x00000000; cpu->id_isar0 = 0x01141110; cpu->id_isar1 = 0x02111000; cpu->id_isar2 = 0x21112231; cpu->id_isar3 = 0x01111110; cpu->id_isar4 = 0x01310102; cpu->id_isar5 = 0x00000000; } static void cortex_m33_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, obj); set_feature(&cpu->env, ARM_FEATURE_V8); set_feature(&cpu->env, ARM_FEATURE_M); set_feature(&cpu->env, ARM_FEATURE_M_MAIN); set_feature(&cpu->env, ARM_FEATURE_M_SECURITY); set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); cpu->midr = 0x410fd213; /* r0p3 */ cpu->pmsav7_dregion = 16; cpu->sau_sregion = 8; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000210; cpu->id_dfr0 = 0x00200000; cpu->id_afr0 = 0x00000000; cpu->id_mmfr0 = 0x00101F40; cpu->id_mmfr1 = 0x00000000; cpu->id_mmfr2 = 0x01000000; cpu->id_mmfr3 = 0x00000000; cpu->id_isar0 = 0x01101110; cpu->id_isar1 = 0x02212000; cpu->id_isar2 = 0x20232232; cpu->id_isar3 = 0x01111131; cpu->id_isar4 = 0x01310132; cpu->id_isar5 = 0x00000000; cpu->clidr = 0x00000000; cpu->ctr = 0x8000c000; } static void arm_v7m_class_init(struct uc_struct *uc, ObjectClass *oc, void *data) { CPUClass *cc = CPU_CLASS(uc, oc); #ifndef CONFIG_USER_ONLY cc->do_interrupt = arm_v7m_cpu_do_interrupt; #endif cc->cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt; } static const ARMCPRegInfo cortexr5_cp_reginfo[] = { /* Dummy the TCM region regs for the moment */ { "ATCM", 15,9,1, 0,0,0, 0,ARM_CP_CONST, PL1_RW }, { "BTCM", 15,9,1, 0,0,1, 0,ARM_CP_CONST, PL1_RW }, { "DCACHE_INVAL", 15,15,5, 0,0,0, 0, ARM_CP_NOP, PL1_W }, REGINFO_SENTINEL }; static void cortex_r5_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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_PMSA); 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 void cortex_r5f_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, obj); cortex_r5_initfn(uc, obj, opaque); set_feature(&cpu->env, ARM_FEATURE_VFP3); } static const ARMCPRegInfo cortexa8_cp_reginfo[] = { { "L2LOCKDOWN", 15,9,0, 0,1,0, 0, ARM_CP_CONST, PL1_RW, 0, NULL, 0, }, { "L2AUXCR", 15,9,0, 0,1,2, 0, ARM_CP_CONST, PL1_RW, 0, NULL, 0, }, REGINFO_SENTINEL }; static void cortex_a8_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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 */ { "A9_PWRCTL", 15,15,0, 0,0,0, 0, 0, PL1_RW, 0, NULL, 0, offsetof(CPUARMState, cp15.c15_power_control) }, { "A9_DIAG", 15,15,0, 0,0,1, 0, 0, PL1_RW, 0, NULL, 0, offsetof(CPUARMState, cp15.c15_diagnostic) }, { "A9_PWRDIAG",15,15,0, 0,0,2, 0, 0, PL1_RW, 0, NULL, 0, offsetof(CPUARMState, cp15.c15_power_diagnostic) }, { "NEONBUSY", 15,15,1, 0,0,0, 0, ARM_CP_CONST, PL1_RW, 0, NULL, 0, }, /* TLB lockdown control */ { "TLB_LOCKR", 15,15,4, 0,5,2, 0, ARM_CP_NOP, PL1_W, 0, NULL, 0 }, { "TLB_LOCKW", 15,15,4, 0,5,4, 0, ARM_CP_NOP, PL1_W, 0, NULL, 0, }, { "TLB_VA", 15,15,5, 0,5,2, 0, ARM_CP_CONST, PL1_RW, 0, NULL, 0, }, { "TLB_PA", 15,15,6, 0,5,2, 0, ARM_CP_CONST, PL1_RW, 0, NULL, 0 }, { "TLB_ATTR", 15,15,7, 0,5,2, 0, ARM_CP_CONST, PL1_RW, 0, NULL, 0, }, REGINFO_SENTINEL }; static void cortex_a9_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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 { "L2CTLR", 15,9,0, 0,1,2, 0, 0, PL1_RW, 0, NULL, 0, 0, {0, 0}, NULL, a15_l2ctlr_read, arm_cp_write_ignore, }, #endif { "L2ECTLR", 15,9,0, 0,1,3, 0, ARM_CP_CONST, PL1_RW, 0, NULL, 0 }, REGINFO_SENTINEL }; static void cortex_a7_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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 = 0x00000000; 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, 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; } #ifndef TARGET_AARCH64 /* -cpu max: if KVM is enabled, like -cpu host (best possible with this host); * otherwise, a CPU with as many features enabled as our emulation supports. * The version of '-cpu max' for qemu-system-aarch64 is defined in cpu64.c; * this only needs to handle 32 bits. */ static void arm_max_initfn(struct uc_struct *uc, Object *obj, void *opaque) { ARMCPU *cpu = ARM_CPU(uc, obj); cortex_a15_initfn(uc, obj, opaque); /* In future we might add feature bits here even if the * real-world A15 doesn't implement them. */ // Unicorn: We lie and enable them anyway /* We don't set these in system emulation mode for the moment, * since we don't correctly set the ID registers to advertise them, */ 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); set_feature(&cpu->env, ARM_FEATURE_V8_RDM); set_feature(&cpu->env, ARM_FEATURE_V8_FCMA); } #endif #endif /* !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) */ typedef struct ARMCPUInfo { const char *name; void (*initfn)(struct uc_struct *uc, Object *obj, void *opaque); void (*class_init)(struct uc_struct *uc, ObjectClass *oc, void *data); } ARMCPUInfo; static const ARMCPUInfo arm_cpus[] = { #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) { "arm926", arm926_initfn }, { "arm946", arm946_initfn }, { "arm1026", 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. */ { "arm1136-r2", arm1136_r2_initfn }, { "arm1136", arm1136_initfn }, { "arm1176", arm1176_initfn }, { "arm11mpcore", arm11mpcore_initfn }, { "cortex-m3", cortex_m3_initfn, arm_v7m_class_init }, { "cortex-m4", cortex_m4_initfn, arm_v7m_class_init }, { "cortex-m33", cortex_m33_initfn, arm_v7m_class_init }, { "cortex-r5", cortex_r5_initfn }, { "cortex-r5f", cortex_r5f_initfn }, { "cortex-a7", cortex_a7_initfn }, { "cortex-a8", cortex_a8_initfn }, { "cortex-a9", cortex_a9_initfn }, { "cortex-a15", cortex_a15_initfn }, { "ti925t", ti925t_initfn }, { "sa1100", sa1100_initfn }, { "sa1110", sa1110_initfn }, { "pxa250", pxa250_initfn }, { "pxa255", pxa255_initfn }, { "pxa260", pxa260_initfn }, { "pxa261", pxa261_initfn }, { "pxa262", pxa262_initfn }, /* "pxa270" is an alias for "pxa270-a0" */ { "pxa270", pxa270a0_initfn }, { "pxa270-a0", pxa270a0_initfn }, { "pxa270-a1", pxa270a1_initfn }, { "pxa270-b0", pxa270b0_initfn }, { "pxa270-b1", pxa270b1_initfn }, { "pxa270-c0", pxa270c0_initfn }, { "pxa270-c5", pxa270c5_initfn }, #ifndef TARGET_AARCH64 { "max", arm_max_initfn }, #endif #ifdef CONFIG_USER_ONLY { "any", arm_max_initfn }, #endif #endif { NULL } }; #ifdef CONFIG_USER_ONLY static int arm_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int size, int rw, int mmu_idx) { ARMCPU *cpu = ARM_CPU(NULL, 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 void arm_cpu_class_init(struct uc_struct *uc, ObjectClass *oc, void *data) { ARMCPUClass *acc = ARM_CPU_CLASS(uc, oc); CPUClass *cc = CPU_CLASS(uc, acc); DeviceClass *dc = DEVICE_CLASS(uc, 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->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; #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->do_transaction_failed = arm_cpu_do_transaction_failed; cc->get_phys_page_attrs_debug = arm_cpu_get_phys_page_attrs_debug; cc->asidx_from_attrs = arm_asidx_from_attrs; // UNICORN: Commented out //cc->vmsd = &vmstate_arm_cpu; //cc->virtio_is_big_endian = arm_cpu_is_big_endian; #endif 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->tcg_initialize = arm_translate_init; } static void cpu_register(struct uc_struct *uc, const ARMCPUInfo *info) { TypeInfo type_info = { 0 }; type_info.parent = TYPE_ARM_CPU; type_info.instance_size = sizeof(ARMCPU); type_info.instance_init = info->initfn; type_info.class_size = sizeof(ARMCPUClass); type_info.class_init = info->class_init; type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name); type_register(uc, &type_info); g_free((void *)type_info.name); } void arm_cpu_register_types(void *opaque) { const ARMCPUInfo *info = arm_cpus; TypeInfo arm_cpu_type_info = { 0 }; arm_cpu_type_info.name = TYPE_ARM_CPU, arm_cpu_type_info.parent = TYPE_CPU, arm_cpu_type_info.instance_userdata = opaque, arm_cpu_type_info.instance_size = sizeof(ARMCPU), arm_cpu_type_info.instance_init = arm_cpu_initfn, arm_cpu_type_info.instance_post_init = arm_cpu_post_init, arm_cpu_type_info.instance_finalize = arm_cpu_finalizefn, arm_cpu_type_info.abstract = true, arm_cpu_type_info.class_size = sizeof(ARMCPUClass), arm_cpu_type_info.class_init = arm_cpu_class_init, type_register_static(opaque, &arm_cpu_type_info); while (info->name) { cpu_register(opaque, info); info++; } }