/* * 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 "cpu.h" #include "internals.h" #include "exec/exec-all.h" #include "sysemu/sysemu.h" #include "fpu/softfloat.h" #include static void arm_cpu_set_pc(CPUState *cs, vaddr value) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; if (is_a64(env)) { env->pc = value; env->thumb = 0; } else { env->regs[15] = value & ~1; env->thumb = value & 1; } } static void arm_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; /* * It's OK to look at env for the current mode here, because it's * never possible for an AArch64 TB to chain to an AArch32 TB. */ if (is_a64(env)) { env->pc = tb->pc; } else { env->regs[15] = tb->pc; } } 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); } static 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); } static 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; #ifndef NDEBUG ARMCPU *cpu = opaque; uint64_t oldvalue, newvalue; #endif if (ri->type & (ARM_CP_SPECIAL | ARM_CP_ALIAS | ARM_CP_NO_RAW)) { return; } #ifndef NDEBUG oldvalue = read_raw_cp_reg(&cpu->env, ri); #endif cp_reg_reset(key, value, opaque); #ifndef NDEBUG newvalue = read_raw_cp_reg(&cpu->env, ri); assert(oldvalue == newvalue); #endif } static void arm_cpu_reset(CPUState *dev) { CPUState *s = CPU(dev); ARMCPU *cpu = ARM_CPU(s); ARMCPUClass *acc = ARM_CPU_GET_CLASS(cpu); CPUARMState *env = &cpu->env; acc->parent_reset(dev); 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->isar.mvfr0; env->vfp.xregs[ARM_VFP_MVFR1] = cpu->isar.mvfr1; env->vfp.xregs[ARM_VFP_MVFR2] = cpu->isar.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; /* 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; } /* * If the highest available EL is EL2, AArch32 will start in Hyp * mode; otherwise it starts in SVC. Note that if we start in * AArch64 then these values in the uncached_cpsr will be ignored. */ if (arm_feature(env, ARM_FEATURE_EL2) && !arm_feature(env, ARM_FEATURE_EL3)) { env->uncached_cpsr = ARM_CPU_MODE_HYP; } else { 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; uint32_t vecbase; 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; /* * Set NSACR to indicate "NS access permitted to everything"; * this avoids having to have all the tests of it being * conditional on ARM_FEATURE_M_SECURITY. Note also that from * v8.1M the guest-visible value of NSACR in a CPU without the * Security Extension is 0xcff. */ env->v7m.nsacr = 0xcff; } /* 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; } if (!arm_feature(env, ARM_FEATURE_M_MAIN)) { env->v7m.ccr[M_REG_NS] |= R_V7M_CCR_UNALIGN_TRP_MASK; env->v7m.ccr[M_REG_S] |= R_V7M_CCR_UNALIGN_TRP_MASK; } if (cpu_isar_feature(aa32_vfp_simd, cpu)) { env->v7m.fpccr[M_REG_NS] = R_V7M_FPCCR_ASPEN_MASK; env->v7m.fpccr[M_REG_S] = R_V7M_FPCCR_ASPEN_MASK | R_V7M_FPCCR_LSPEN_MASK | R_V7M_FPCCR_S_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; /* Load the initial SP and PC from offset 0 and 4 in the vector table */ vecbase = env->v7m.vecbase[env->v7m.secure]; #if 0 rom = rom_ptr(vecbase, 8); 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. */ #ifdef UNICORN_ARCH_POSTFIX initial_msp = glue(ldl_phys, UNICORN_ARCH_POSTFIX)(s->uc, s->as, vecbase); initial_pc = glue(ldl_phys, UNICORN_ARCH_POSTFIX)(s->uc, s->as, vecbase + 4); #else initial_msp = ldl_phys(s->uc, s->as, vecbase); initial_pc = ldl_phys(s->uc, s->as, vecbase + 4); #endif } 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; } /* 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; 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); arm_rebuild_hflags(env); } static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx, unsigned int target_el, unsigned int cur_el, bool secure, uint64_t hcr_el2) { CPUARMState *env = cs->env_ptr; bool pstate_unmasked; bool unmasked = false; /* * Don't take exceptions if they target a lower EL. * This check should catch any exceptions that would not be taken * but left pending. */ if (cur_el > target_el) { return false; } switch (excp_idx) { case EXCP_FIQ: pstate_unmasked = !(env->daif & PSTATE_F); break; case EXCP_IRQ: pstate_unmasked = !(env->daif & PSTATE_I); break; case EXCP_VFIQ: if (secure || !(hcr_el2 & HCR_FMO) || (hcr_el2 & HCR_TGE)) { /* VFIQs are only taken when hypervized and non-secure. */ return false; } return !(env->daif & PSTATE_F); case EXCP_VIRQ: if (secure || !(hcr_el2 & HCR_IMO) || (hcr_el2 & HCR_TGE)) { /* VIRQs are only taken when hypervized and non-secure. */ return false; } return !(env->daif & PSTATE_I); default: g_assert_not_reached(); } /* * Use the target EL, current execution state and SCR/HCR settings to * determine whether the corresponding CPSR bit is used to mask the * interrupt. */ if ((target_el > cur_el) && (target_el != 1)) { /* Exceptions targeting a higher EL may not be maskable */ if (arm_feature(env, ARM_FEATURE_AARCH64)) { /* * 64-bit masking rules are simple: exceptions to EL3 * can't be masked, and exceptions to EL2 can only be * masked from Secure state. The HCR and SCR settings * don't affect the masking logic, only the interrupt routing. */ if (target_el == 3 || !secure) { unmasked = true; } } else { /* * The old 32-bit-only environment has a more complicated * masking setup. HCR and SCR bits not only affect interrupt * routing but also change the behaviour of masking. */ bool hcr, scr; switch (excp_idx) { case EXCP_FIQ: /* * If FIQs are routed to EL3 or EL2 then there are cases where * we override the CPSR.F in determining if the exception is * masked or not. If neither of these are set then we fall back * to the CPSR.F setting otherwise we further assess the state * below. */ hcr = hcr_el2 & HCR_FMO; scr = (env->cp15.scr_el3 & SCR_FIQ); /* * When EL3 is 32-bit, the SCR.FW bit controls whether the * CPSR.F bit masks FIQ interrupts when taken in non-secure * state. If SCR.FW is set then FIQs can be masked by CPSR.F * when non-secure but only when FIQs are only routed to EL3. */ scr = scr && !((env->cp15.scr_el3 & SCR_FW) && !hcr); break; case EXCP_IRQ: /* * When EL3 execution state is 32-bit, if HCR.IMO is set then * we may override the CPSR.I masking when in non-secure state. * The SCR.IRQ setting has already been taken into consideration * when setting the target EL, so it does not have a further * affect here. */ hcr = hcr_el2 & HCR_IMO; scr = false; break; default: g_assert_not_reached(); } if ((scr || hcr) && !secure) { unmasked = true; } } } /* * The PSTATE bits only mask the interrupt if we have not overriden the * ability above. */ return unmasked || pstate_unmasked; } 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); uint64_t hcr_el2 = arm_hcr_el2_eff(env); uint32_t target_el; uint32_t excp_idx; /* The prioritization of interrupts is IMPLEMENTATION DEFINED. */ 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, cur_el, secure, hcr_el2)) { goto found; } } 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, cur_el, secure, hcr_el2)) { goto found; } } if (interrupt_request & CPU_INTERRUPT_VIRQ) { excp_idx = EXCP_VIRQ; target_el = 1; if (arm_excp_unmasked(cs, excp_idx, target_el, cur_el, secure, hcr_el2)) { goto found; } } if (interrupt_request & CPU_INTERRUPT_VFIQ) { excp_idx = EXCP_VFIQ; target_el = 1; if (arm_excp_unmasked(cs, excp_idx, target_el, cur_el, secure, hcr_el2)) { goto found; } } return false; found: cs->exception_index = excp_idx; env->exception.target_el = target_el; cc->do_interrupt(cs); return true; } #if !defined(TARGET_AARCH64) 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; /* 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 void arm_cpu_update_virq(ARMCPU *cpu) { /* * Update the interrupt level for VIRQ, which is the logical OR of * the HCR_EL2.VI bit and the input line level from the GIC. */ CPUARMState *env = &cpu->env; CPUState *cs = CPU(cpu); bool new_state = (env->cp15.hcr_el2 & HCR_VI) || (env->irq_line_state & CPU_INTERRUPT_VIRQ); if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VIRQ) != 0)) { if (new_state) { cpu_interrupt(cs, CPU_INTERRUPT_VIRQ); } else { cpu_reset_interrupt(cs, CPU_INTERRUPT_VIRQ); } } } void arm_cpu_update_vfiq(ARMCPU *cpu) { /* * Update the interrupt level for VFIQ, which is the logical OR of * the HCR_EL2.VF bit and the input line level from the GIC. */ CPUARMState *env = &cpu->env; CPUState *cs = CPU(cpu); bool new_state = (env->cp15.hcr_el2 & HCR_VF) || (env->irq_line_state & CPU_INTERRUPT_VFIQ); if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VFIQ) != 0)) { if (new_state) { cpu_interrupt(cs, CPU_INTERRUPT_VFIQ); } else { cpu_reset_interrupt(cs, CPU_INTERRUPT_VFIQ); } } } 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 uint64_t arm_cpu_mp_affinity(int idx, uint8_t clustersz) { uint32_t Aff1 = idx / clustersz; uint32_t Aff0 = idx % clustersz; return (Aff1 << ARM_AFF1_SHIFT) | Aff0; } static void cpreg_hashtable_data_destroy(gpointer data) { /* * Destroy function for cpu->cp_regs hashtable data entries. * We must free the name string because it was g_strdup()ed in * add_cpreg_to_hashtable(). It's OK to cast away the 'const' * from r->name because we know we definitely allocated it. */ ARMCPRegInfo *r = data; g_free((void *)r->name); g_free(r); } void arm_cpu_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); CPUARMState *env = &cpu->env; env->uc = uc; cpu_set_cpustate_pointers(cpu); cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal, g_free, cpreg_hashtable_data_destroy); QLIST_INIT(&cpu->pre_el_change_hooks); QLIST_INIT(&cpu->el_change_hooks); /* 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->psci_version = 1; /* By default assume PSCI v0.1 */ cpu->psci_version = 2; /* TCG implements PSCI 0.2 */ } unsigned int gt_cntfrq_period_ns(ARMCPU *cpu) { /* * The exact approach to calculating guest ticks is: * * muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), cpu->gt_cntfrq_hz, * NANOSECONDS_PER_SECOND); * * We don't do that. Rather we intentionally use integer division * truncation below and in the caller for the conversion of host monotonic * time to guest ticks to provide the exact inverse for the semantics of * the QEMUTimer scale factor. QEMUTimer's scale facter is an integer, so * it loses precision when representing frequencies where * `(NANOSECONDS_PER_SECOND % cpu->gt_cntfrq) > 0` holds. Failing to * provide an exact inverse leads to scheduling timers with negative * periods, which in turn leads to sticky behaviour in the guest. * * Finally, CNTFRQ is effectively capped at 1GHz to ensure our scale factor * cannot become zero. */ return NANOSECONDS_PER_SECOND > cpu->gt_cntfrq_hz ? NANOSECONDS_PER_SECOND / cpu->gt_cntfrq_hz : 1; } void arm_cpu_post_init(CPUState *obj) { ARMCPU *cpu = ARM_CPU(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)) { cpu->reset_cbar = 0; } if (!arm_feature(&cpu->env, ARM_FEATURE_M)) { cpu->reset_hivecs = false; } if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { cpu->rvbar = 0; } 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. */ cpu->has_el3 = true; } if (arm_feature(&cpu->env, ARM_FEATURE_EL2)) { cpu->has_el2 = true; } if (arm_feature(&cpu->env, ARM_FEATURE_PMU)) { cpu->has_pmu = true; } /* * Allow user to turn off VFP and Neon support, but only for TCG -- * KVM does not currently allow us to lie to the guest about its * ID/feature registers, so the guest always sees what the host has. */ if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64) ? cpu_isar_feature(aa64_fp_simd, cpu) : cpu_isar_feature(aa32_vfp, cpu)) { cpu->has_vfp = true; } if (arm_feature(&cpu->env, ARM_FEATURE_NEON)) { cpu->has_neon = true; } if (arm_feature(&cpu->env, ARM_FEATURE_M) && arm_feature(&cpu->env, ARM_FEATURE_THUMB_DSP)) { cpu->has_dsp = true; } if (arm_feature(&cpu->env, ARM_FEATURE_PMSA)) { cpu->has_mpu = true; } cpu->cfgend = false; if (arm_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER)) { cpu->gt_cntfrq_hz = NANOSECONDS_PER_SECOND / GTIMER_SCALE; } } static void arm_cpu_finalize_features(ARMCPU *cpu) { #if 0 if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { arm_cpu_sve_finalize(cpu); } #endif } void arm_cpu_realizefn(struct uc_struct *uc, CPUState *dev) { CPUState *cs = CPU(dev); ARMCPU *cpu = ARM_CPU(dev); CPUARMState *env = &cpu->env; #ifndef NDEBUG bool no_aa32 = false; #endif #if 0 /* The NVIC and M-profile CPU are two halves of a single piece of * hardware; trying to use one without the other is a command line * error and will result in segfaults if not caught here. */ if (arm_feature(env, ARM_FEATURE_M)) { if (!env->nvic) { return; } } else { if (env->nvic) { return; } } if (arm_feature(env, ARM_FEATURE_GENERIC_TIMER)) { if (!cpu->gt_cntfrq_hz) { return; } } #endif cpu_exec_realizefn(cs); arm_cpu_finalize_features(cpu); if (arm_feature(env, ARM_FEATURE_AARCH64) && cpu->has_vfp != cpu->has_neon) { /* * This is an architectural requirement for AArch64; AArch32 is * more flexible and permits VFP-no-Neon and Neon-no-VFP. */ // error_setg(errp, "AArch64 CPUs must have both VFP and Neon or neither"); return; } if (!cpu->has_vfp) { uint64_t t; uint32_t u; t = cpu->isar.id_aa64isar1; FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 0, t); cpu->isar.id_aa64isar1 = t; t = cpu->isar.id_aa64pfr0; FIELD_DP64(t, ID_AA64PFR0, FP, 0xf, t); cpu->isar.id_aa64pfr0 = t; u = cpu->isar.id_isar6; FIELD_DP32(u, ID_ISAR6, JSCVT, 0, u); cpu->isar.id_isar6 = u; u = cpu->isar.mvfr0; FIELD_DP32(u, MVFR0, FPSP, 0, u); FIELD_DP32(u, MVFR0, FPDP, 0, u); FIELD_DP32(u, MVFR0, FPTRAP, 0, u); FIELD_DP32(u, MVFR0, FPDIVIDE, 0, u); FIELD_DP32(u, MVFR0, FPSQRT, 0, u); FIELD_DP32(u, MVFR0, FPSHVEC, 0, u); FIELD_DP32(u, MVFR0, FPROUND, 0, u); cpu->isar.mvfr0 = u; u = cpu->isar.mvfr1; FIELD_DP32(u, MVFR1, FPFTZ, 0, u); FIELD_DP32(u, MVFR1, FPDNAN, 0, u); FIELD_DP32(u, MVFR1, FPHP, 0, u); cpu->isar.mvfr1 = u; u = cpu->isar.mvfr2; FIELD_DP32(u, MVFR2, FPMISC, 0, u); cpu->isar.mvfr2 = u; } if (!cpu->has_neon) { uint64_t t; uint32_t u; unset_feature(env, ARM_FEATURE_NEON); t = cpu->isar.id_aa64isar0; FIELD_DP64(t, ID_AA64ISAR0, DP, 0, t); cpu->isar.id_aa64isar0 = t; t = cpu->isar.id_aa64isar1; FIELD_DP64(t, ID_AA64ISAR1, FCMA, 0, t); cpu->isar.id_aa64isar1 = t; t = cpu->isar.id_aa64pfr0; FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 0xf, t); cpu->isar.id_aa64pfr0 = t; u = cpu->isar.id_isar5; FIELD_DP32(u, ID_ISAR5, RDM, 0, u); FIELD_DP32(u, ID_ISAR5, VCMA, 0, u); cpu->isar.id_isar5 = u; u = cpu->isar.id_isar6; FIELD_DP32(u, ID_ISAR6, DP, 0, u); FIELD_DP32(u, ID_ISAR6, FHM, 0, u); cpu->isar.id_isar6 = u; u = cpu->isar.mvfr1; FIELD_DP32(u, MVFR1, SIMDLS, 0, u); FIELD_DP32(u, MVFR1, SIMDINT, 0, u); FIELD_DP32(u, MVFR1, SIMDSP, 0, u); FIELD_DP32(u, MVFR1, SIMDHP, 0, u); cpu->isar.mvfr1 = u; u = cpu->isar.mvfr2; FIELD_DP32(u, MVFR2, SIMDMISC, 0, u); cpu->isar.mvfr2 = u; } if (!cpu->has_neon && !cpu->has_vfp) { uint64_t t; uint32_t u; t = cpu->isar.id_aa64isar0; FIELD_DP64(t, ID_AA64ISAR0, FHM, 0, t); cpu->isar.id_aa64isar0 = t; t = cpu->isar.id_aa64isar1; FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 0, t); cpu->isar.id_aa64isar1 = t; u = cpu->isar.mvfr0; FIELD_DP32(u, MVFR0, SIMDREG, 0, u); cpu->isar.mvfr0 = u; /* Despite the name, this field covers both VFP and Neon */ u = cpu->isar.mvfr1; FIELD_DP32(u, MVFR1, SIMDFMAC, 0, u); cpu->isar.mvfr1 = u; } if (arm_feature(env, ARM_FEATURE_M) && !cpu->has_dsp) { uint32_t u; unset_feature(env, ARM_FEATURE_THUMB_DSP); u = cpu->isar.id_isar1; FIELD_DP32(u, ID_ISAR1, EXTEND, 1, u); cpu->isar.id_isar1 = u; u = cpu->isar.id_isar2; FIELD_DP32(u, ID_ISAR2, MULTU, 1, u); FIELD_DP32(u, ID_ISAR2, MULTS, 1, u); cpu->isar.id_isar2 = u; u = cpu->isar.id_isar3; FIELD_DP32(u, ID_ISAR3, SIMD, 1, u); FIELD_DP32(u, ID_ISAR3, SATURATE, 0, u); cpu->isar.id_isar3 = u; } /* Some features automatically imply others: */ if (arm_feature(env, ARM_FEATURE_V8)) { if (arm_feature(env, ARM_FEATURE_M)) { set_feature(env, ARM_FEATURE_V7); } else { set_feature(env, ARM_FEATURE_V7VE); } } /* * There exist AArch64 cpus without AArch32 support. When KVM * queries ID_ISAR0_EL1 on such a host, the value is UNKNOWN. * Similarly, we cannot check ID_AA64PFR0 without AArch64 support. * As a general principle, we also do not make ID register * consistency checks anywhere unless using TCG, because only * for TCG would a consistency-check failure be a QEMU bug. */ if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { #ifndef NDEBUG no_aa32 = !cpu_isar_feature(aa64_aa32, cpu); #else cpu_isar_feature(aa64_aa32, cpu); #endif } if (arm_feature(env, ARM_FEATURE_V7VE)) { /* v7 Virtualization Extensions. In real hardware this implies * EL2 and also the presence of the Security Extensions. * For QEMU, for backwards-compatibility we implement some * CPUs or CPU configs which have no actual EL2 or EL3 but do * include the various other features that V7VE implies. * Presence of EL2 itself is ARM_FEATURE_EL2, and of the * Security Extensions is ARM_FEATURE_EL3. */ #ifndef NDEBUG assert(no_aa32 || cpu_isar_feature(aa32_arm_div, cpu)); #endif set_feature(env, ARM_FEATURE_LPAE); set_feature(env, ARM_FEATURE_V7); } 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)) { #ifndef NDEBUG assert(no_aa32 || cpu_isar_feature(aa32_jazelle, cpu)); #endif 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_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); } /* * We rely on no XScale CPU having VFP so we can use the same bits in the * TB flags field for VECSTRIDE and XSCALE_CPAR. */ assert(arm_feature(&cpu->env, ARM_FEATURE_AARCH64) || !cpu_isar_feature(aa32_vfp_simd, cpu) || !arm_feature(env, ARM_FEATURE_XSCALE)); #if 0 if (arm_feature(env, ARM_FEATURE_V7) && !arm_feature(env, ARM_FEATURE_M) && !arm_feature(env, ARM_FEATURE_PMSA)) { /* 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(cpu->uc, 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; } #endif /* 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) { cpu->mp_affinity = arm_cpu_mp_affinity(cs->cpu_index, ARM_DEFAULT_CPUS_PER_CLUSTER); } 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->isar.id_aa64pfr0 &= ~0xf000; } if (!cpu->has_el2) { unset_feature(env, ARM_FEATURE_EL2); } if (!cpu->has_pmu) { unset_feature(env, ARM_FEATURE_PMU); } if (arm_feature(env, ARM_FEATURE_PMU)) { pmu_init(cpu); arm_register_pre_el_change_hook(cpu, &pmu_pre_el_change, 0); arm_register_el_change_hook(cpu, &pmu_post_el_change, 0); } else { FIELD_DP64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, PMUVER, 0, cpu->isar.id_aa64dfr0); FIELD_DP32(cpu->isar.id_dfr0, ID_DFR0, PERFMON, 0, cpu->isar.id_dfr0); cpu->pmceid0 = 0; cpu->pmceid1 = 0; } 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->isar.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, nr); return; } 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; } 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); unsigned int smp_cpus = 1; 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); } else { cs->num_ases = 1; } cpu_address_space_init(cs, ARMASIdx_NS, cs->memory); /* No core_count specified, default to smp_cpus. */ if (cpu->core_count == -1) { cpu->core_count = smp_cpus; } cpu_reset(cs); } /* CPU models. These are not needed for the AArch64 linux-user build. */ #if !defined(TARGET_AARCH64) static void arm926_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); 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; /* * ARMv5 does not have the ID_ISAR registers, but we can still * set the field to indicate Jazelle support within QEMU. */ FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1, cpu->isar.id_isar1); /* * Similarly, we need to set MVFR0 fields to enable vfp and short vector * support even though ARMv5 doesn't have this register. */ FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1, cpu->isar.mvfr0); FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSP, 1, cpu->isar.mvfr0); FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPDP, 1, cpu->isar.mvfr0); } static void arm946_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); 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, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); 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; /* * ARMv5 does not have the ID_ISAR registers, but we can still * set the field to indicate Jazelle support within QEMU. */ FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1, cpu->isar.id_isar1); /* * Similarly, we need to set MVFR0 fields to enable vfp and short vector * support even though ARMv5 doesn't have this register. */ FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1, cpu->isar.mvfr0); FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSP, 1, cpu->isar.mvfr0); FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPDP, 1, cpu->isar.mvfr0); { /* 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(struct uc_struct *uc, CPUState *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). */ set_feature(&cpu->env, ARM_FEATURE_V6); 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->isar.mvfr0 = 0x11111111; cpu->isar.mvfr1 = 0x00000000; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; cpu->isar.id_dfr0 = 0x2; cpu->id_afr0 = 0x3; cpu->isar.id_mmfr0 = 0x01130003; cpu->isar.id_mmfr1 = 0x10030302; cpu->isar.id_mmfr2 = 0x01222110; cpu->isar.id_isar0 = 0x00140011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11231111; cpu->isar.id_isar3 = 0x01102131; cpu->isar.id_isar4 = 0x141; cpu->reset_auxcr = 7; } static void arm1136_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V6K); set_feature(&cpu->env, ARM_FEATURE_V6); 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->isar.mvfr0 = 0x11111111; cpu->isar.mvfr1 = 0x00000000; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; cpu->isar.id_dfr0 = 0x2; cpu->id_afr0 = 0x3; cpu->isar.id_mmfr0 = 0x01130003; cpu->isar.id_mmfr1 = 0x10030302; cpu->isar.id_mmfr2 = 0x01222110; cpu->isar.id_isar0 = 0x00140011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11231111; cpu->isar.id_isar3 = 0x01102131; cpu->isar.id_isar4 = 0x141; cpu->reset_auxcr = 7; } static void arm1176_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V6K); 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->isar.mvfr0 = 0x11111111; cpu->isar.mvfr1 = 0x00000000; cpu->ctr = 0x1dd20d2; cpu->reset_sctlr = 0x00050078; cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x11; cpu->isar.id_dfr0 = 0x33; cpu->id_afr0 = 0; cpu->isar.id_mmfr0 = 0x01130003; cpu->isar.id_mmfr1 = 0x10030302; cpu->isar.id_mmfr2 = 0x01222100; cpu->isar.id_isar0 = 0x0140011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11231121; cpu->isar.id_isar3 = 0x01102131; cpu->isar.id_isar4 = 0x01141; cpu->reset_auxcr = 7; } static void arm11mpcore_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V6K); 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->isar.mvfr0 = 0x11111111; cpu->isar.mvfr1 = 0x00000000; cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */ cpu->id_pfr0 = 0x111; cpu->id_pfr1 = 0x1; cpu->isar.id_dfr0 = 0; cpu->id_afr0 = 0x2; cpu->isar.id_mmfr0 = 0x01100103; cpu->isar.id_mmfr1 = 0x10020302; cpu->isar.id_mmfr2 = 0x01222000; cpu->isar.id_isar0 = 0x00100011; cpu->isar.id_isar1 = 0x12002111; cpu->isar.id_isar2 = 0x11221011; cpu->isar.id_isar3 = 0x01102131; cpu->isar.id_isar4 = 0x141; cpu->reset_auxcr = 1; } static void cortex_m0_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V6); set_feature(&cpu->env, ARM_FEATURE_M); cpu->midr = 0x410cc200; } static void cortex_m3_initfn(struct uc_struct *uc, CPUState *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_M_MAIN); cpu->midr = 0x410fc231; cpu->pmsav7_dregion = 8; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->isar.id_mmfr0 = 0x00000030; cpu->isar.id_mmfr1 = 0x00000000; cpu->isar.id_mmfr2 = 0x00000000; cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01141110; cpu->isar.id_isar1 = 0x02111000; cpu->isar.id_isar2 = 0x21112231; cpu->isar.id_isar3 = 0x01111110; cpu->isar.id_isar4 = 0x01310102; cpu->isar.id_isar5 = 0x00000000; cpu->isar.id_isar6 = 0x00000000; } static void cortex_m4_initfn(struct uc_struct *uc, CPUState *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_M_MAIN); set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); cpu->midr = 0x410fc240; /* r0p0 */ cpu->pmsav7_dregion = 8; cpu->isar.mvfr0 = 0x10110021; cpu->isar.mvfr1 = 0x11000011; cpu->isar.mvfr2 = 0x00000000; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->isar.id_mmfr0 = 0x00000030; cpu->isar.id_mmfr1 = 0x00000000; cpu->isar.id_mmfr2 = 0x00000000; cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01141110; cpu->isar.id_isar1 = 0x02111000; cpu->isar.id_isar2 = 0x21112231; cpu->isar.id_isar3 = 0x01111110; cpu->isar.id_isar4 = 0x01310102; cpu->isar.id_isar5 = 0x00000000; cpu->isar.id_isar6 = 0x00000000; } static void cortex_m7_initfn(struct uc_struct *uc, CPUState *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_M_MAIN); set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); cpu->midr = 0x411fc272; /* r1p2 */ cpu->pmsav7_dregion = 8; cpu->isar.mvfr0 = 0x10110221; cpu->isar.mvfr1 = 0x12000011; cpu->isar.mvfr2 = 0x00000040; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000200; cpu->isar.id_dfr0 = 0x00100000; cpu->id_afr0 = 0x00000000; cpu->isar.id_mmfr0 = 0x00100030; cpu->isar.id_mmfr1 = 0x00000000; cpu->isar.id_mmfr2 = 0x01000000; cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01101110; cpu->isar.id_isar1 = 0x02112000; cpu->isar.id_isar2 = 0x20232231; cpu->isar.id_isar3 = 0x01111131; cpu->isar.id_isar4 = 0x01310132; cpu->isar.id_isar5 = 0x00000000; cpu->isar.id_isar6 = 0x00000000; } static void cortex_m33_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(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->isar.mvfr0 = 0x10110021; cpu->isar.mvfr1 = 0x11000011; cpu->isar.mvfr2 = 0x00000040; cpu->id_pfr0 = 0x00000030; cpu->id_pfr1 = 0x00000210; cpu->isar.id_dfr0 = 0x00200000; cpu->id_afr0 = 0x00000000; cpu->isar.id_mmfr0 = 0x00101F40; cpu->isar.id_mmfr1 = 0x00000000; cpu->isar.id_mmfr2 = 0x01000000; cpu->isar.id_mmfr3 = 0x00000000; cpu->isar.id_isar0 = 0x01101110; cpu->isar.id_isar1 = 0x02212000; cpu->isar.id_isar2 = 0x20232232; cpu->isar.id_isar3 = 0x01111131; cpu->isar.id_isar4 = 0x01310132; cpu->isar.id_isar5 = 0x00000000; cpu->isar.id_isar6 = 0x00000000; cpu->clidr = 0x00000000; cpu->ctr = 0x8000c000; } static void arm_v7m_class_init(struct uc_struct *uc, CPUClass *oc, void *data) { ARMCPUClass *acc = ARM_CPU_CLASS(oc); CPUClass *cc = CPU_CLASS(oc); acc->info = data; cc->do_interrupt = arm_v7m_cpu_do_interrupt; cc->cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt; } static 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 }, { .name = "DCACHE_INVAL", .cp = 15, .opc1 = 0, .crn = 15, .crm = 5, .opc2 = 0, .access = PL1_W, .type = ARM_CP_NOP }, REGINFO_SENTINEL }; static void cortex_r5_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7); set_feature(&cpu->env, ARM_FEATURE_V7MP); set_feature(&cpu->env, ARM_FEATURE_PMSA); set_feature(&cpu->env, ARM_FEATURE_PMU); cpu->midr = 0x411fc153; /* r1p3 */ cpu->id_pfr0 = 0x0131; cpu->id_pfr1 = 0x001; cpu->isar.id_dfr0 = 0x010400; cpu->id_afr0 = 0x0; cpu->isar.id_mmfr0 = 0x0210030; cpu->isar.id_mmfr1 = 0x00000000; cpu->isar.id_mmfr2 = 0x01200000; cpu->isar.id_mmfr3 = 0x0211; cpu->isar.id_isar0 = 0x02101111; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232141; cpu->isar.id_isar3 = 0x01112131; cpu->isar.id_isar4 = 0x0010142; cpu->isar.id_isar5 = 0x0; cpu->isar.id_isar6 = 0x0; cpu->mp_is_up = true; cpu->pmsav7_dregion = 16; define_arm_cp_regs(cpu, cortexr5_cp_reginfo); } static void cortex_r5f_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); cortex_r5_initfn(uc, obj); cpu->isar.mvfr0 = 0x10110221; cpu->isar.mvfr1 = 0x00000011; } 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(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7); 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->isar.mvfr0 = 0x11110222; cpu->isar.mvfr1 = 0x00011111; cpu->ctr = 0x82048004; cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x1031; cpu->id_pfr1 = 0x11; cpu->isar.id_dfr0 = 0x400; cpu->id_afr0 = 0; cpu->isar.id_mmfr0 = 0x31100003; cpu->isar.id_mmfr1 = 0x20000000; cpu->isar.id_mmfr2 = 0x01202000; cpu->isar.id_mmfr3 = 0x11; cpu->isar.id_isar0 = 0x00101111; cpu->isar.id_isar1 = 0x12112111; cpu->isar.id_isar2 = 0x21232031; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x00111142; cpu->isar.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(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7); 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->isar.mvfr0 = 0x11110222; cpu->isar.mvfr1 = 0x01111111; cpu->ctr = 0x80038003; cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x1031; cpu->id_pfr1 = 0x11; cpu->isar.id_dfr0 = 0x000; cpu->id_afr0 = 0; cpu->isar.id_mmfr0 = 0x00100103; cpu->isar.id_mmfr1 = 0x20000000; cpu->isar.id_mmfr2 = 0x01230000; cpu->isar.id_mmfr3 = 0x00002111; cpu->isar.id_isar0 = 0x00101111; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232041; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x00111142; cpu->isar.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); } uint64_t a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri) { #if 0 MachineState *ms = MACHINE(qdev_get_machine()); /* Linux wants the number of processors from here. * Might as well set the interrupt-controller bit too. */ return ((ms->smp.cpus - 1) << 24) | (1 << 23); #endif return (1 << 23); } static ARMCPRegInfo cortexa15_cp_reginfo[] = { { .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 }, { .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(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7VE); set_feature(&cpu->env, ARM_FEATURE_NEON); set_feature(&cpu->env, ARM_FEATURE_THUMB2EE); 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_EL2); set_feature(&cpu->env, ARM_FEATURE_EL3); set_feature(&cpu->env, ARM_FEATURE_PMU); cpu->midr = 0x410fc075; cpu->reset_fpsid = 0x41023075; cpu->isar.mvfr0 = 0x10110222; cpu->isar.mvfr1 = 0x11111111; cpu->ctr = 0x84448003; cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x00001131; cpu->id_pfr1 = 0x00011011; cpu->isar.id_dfr0 = 0x02010555; cpu->id_afr0 = 0x00000000; cpu->isar.id_mmfr0 = 0x10101105; cpu->isar.id_mmfr1 = 0x40000000; cpu->isar.id_mmfr2 = 0x01240000; cpu->isar.id_mmfr3 = 0x02102211; /* a7_mpcore_r0p5_trm, page 4-4 gives 0x01101110; but * table 4-41 gives 0x02101110, which includes the arm div insns. */ cpu->isar.id_isar0 = 0x02101110; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232041; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x10011142; cpu->isar.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, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V7VE); set_feature(&cpu->env, ARM_FEATURE_NEON); set_feature(&cpu->env, ARM_FEATURE_THUMB2EE); 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_EL2); set_feature(&cpu->env, ARM_FEATURE_EL3); set_feature(&cpu->env, ARM_FEATURE_PMU); cpu->midr = 0x412fc0f1; cpu->reset_fpsid = 0x410430f0; cpu->isar.mvfr0 = 0x10110222; cpu->isar.mvfr1 = 0x11111111; cpu->ctr = 0x8444c004; cpu->reset_sctlr = 0x00c50078; cpu->id_pfr0 = 0x00001131; cpu->id_pfr1 = 0x00011011; cpu->isar.id_dfr0 = 0x02010555; cpu->id_afr0 = 0x00000000; cpu->isar.id_mmfr0 = 0x10201105; cpu->isar.id_mmfr1 = 0x20000000; cpu->isar.id_mmfr2 = 0x01240000; cpu->isar.id_mmfr3 = 0x02102211; cpu->isar.id_isar0 = 0x02101110; cpu->isar.id_isar1 = 0x13112111; cpu->isar.id_isar2 = 0x21232041; cpu->isar.id_isar3 = 0x11112131; cpu->isar.id_isar4 = 0x10011142; cpu->isar.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, CPUState *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(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_STRONGARM); set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); cpu->midr = 0x4401A11B; cpu->reset_sctlr = 0x00000070; } static void sa1110_initfn(struct uc_struct *uc, CPUState *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(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); cpu->midr = 0x69052100; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa255_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); cpu->midr = 0x69052d00; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa260_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); cpu->midr = 0x69052903; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa261_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); cpu->midr = 0x69052d05; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa262_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); cpu->midr = 0x69052d06; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa270a0_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); set_feature(&cpu->env, ARM_FEATURE_IWMMXT); cpu->midr = 0x69054110; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa270a1_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); set_feature(&cpu->env, ARM_FEATURE_IWMMXT); cpu->midr = 0x69054111; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa270b0_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); set_feature(&cpu->env, ARM_FEATURE_IWMMXT); cpu->midr = 0x69054112; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa270b1_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); set_feature(&cpu->env, ARM_FEATURE_IWMMXT); cpu->midr = 0x69054113; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa270c0_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); set_feature(&cpu->env, ARM_FEATURE_IWMMXT); cpu->midr = 0x69054114; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } static void pxa270c5_initfn(struct uc_struct *uc, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); set_feature(&cpu->env, ARM_FEATURE_V5); set_feature(&cpu->env, ARM_FEATURE_XSCALE); set_feature(&cpu->env, ARM_FEATURE_IWMMXT); cpu->midr = 0x69054117; cpu->ctr = 0xd172172; cpu->reset_sctlr = 0x00000078; } #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, CPUState *obj) { ARMCPU *cpu = ARM_CPU(obj); { cortex_a15_initfn(uc, obj); /* old-style VFP short-vector support */ FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1, cpu->isar.mvfr0); // Unicorn: Enable this on ARM_MAX //#ifdef CONFIG_USER_ONLY /* We don't set these in system emulation mode for the moment, * since we don't correctly set (all of) the ID registers to * advertise them. */ set_feature(&cpu->env, ARM_FEATURE_V8); { uint32_t t; t = cpu->isar.id_isar5; FIELD_DP32(t, ID_ISAR5, AES, 2, t); FIELD_DP32(t, ID_ISAR5, SHA1, 1, t); FIELD_DP32(t, ID_ISAR5, SHA2, 1, t); FIELD_DP32(t, ID_ISAR5, CRC32, 1, t); FIELD_DP32(t, ID_ISAR5, RDM, 1, t); FIELD_DP32(t, ID_ISAR5, VCMA, 1, t); cpu->isar.id_isar5 = t; t = cpu->isar.id_isar6; FIELD_DP32(t, ID_ISAR6, JSCVT, 1, t); FIELD_DP32(t, ID_ISAR6, DP, 1, t); FIELD_DP32(t, ID_ISAR6, FHM, 1, t); FIELD_DP32(t, ID_ISAR6, SB, 1, t); FIELD_DP32(t, ID_ISAR6, SPECRES, 1, t); cpu->isar.id_isar6 = t; t = cpu->isar.mvfr1; FIELD_DP32(t, MVFR1, FPHP, 2, t); /* v8.0 FP support */ cpu->isar.mvfr1 = t; t = cpu->isar.mvfr2; FIELD_DP32(t, MVFR2, SIMDMISC, 3, t); /* SIMD MaxNum */ FIELD_DP32(t, MVFR2, FPMISC, 4, t); /* FP MaxNum */ cpu->isar.mvfr2 = t; t = cpu->isar.id_mmfr3; FIELD_DP32(t, ID_MMFR3, PAN, 2, t); /* ATS1E1 */ cpu->isar.id_mmfr3 = t; t = cpu->isar.id_mmfr4; FIELD_DP32(t, ID_MMFR4, HPDS, 1, t); /* AA32HPD */ FIELD_DP32(t, ID_MMFR4, AC2, 1, t); /* ACTLR2, HACTLR2 */ FIELD_DP32(t, ID_MMFR4, CNP, 1, t); /* TTCNP */ cpu->isar.id_mmfr4 = t; } //#endif } } #endif #endif /* !defined(TARGET_AARCH64) */ struct ARMCPUInfo { const char *name; void (*initfn)(struct uc_struct *uc, CPUState *obj); void (*class_init)(struct uc_struct *uc, CPUClass *oc, void *data); }; #if !defined(TARGET_AARCH64) static struct ARMCPUInfo arm_cpus[] = { { "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-m0", cortex_m0_initfn, arm_v7m_class_init }, { "cortex-m3", cortex_m3_initfn, arm_v7m_class_init }, { "cortex-m4", cortex_m4_initfn, arm_v7m_class_init }, { "cortex-m7", cortex_m7_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 }, { "max", arm_max_initfn }, }; #endif void arm_cpu_class_init(struct uc_struct *uc, CPUClass *oc) { ARMCPUClass *acc = ARM_CPU_CLASS(oc); CPUClass *cc = CPU_CLASS(acc); /* parent class is CPUClass, parent_reset() is cpu_common_reset(). */ acc->parent_reset = cc->reset; /* overwrite the CPUClass->reset to arch reset: arm_cpu_reset(). */ cc->reset = arm_cpu_reset; cc->has_work = arm_cpu_has_work; cc->cpu_exec_interrupt = arm_cpu_exec_interrupt; cc->set_pc = arm_cpu_set_pc; cc->synchronize_from_tb = arm_cpu_synchronize_from_tb; cc->do_interrupt = arm_cpu_do_interrupt; cc->get_phys_page_attrs_debug = arm_cpu_get_phys_page_attrs_debug; cc->asidx_from_attrs = arm_asidx_from_attrs; cc->tcg_initialize = arm_translate_init; cc->tlb_fill_cpu = arm_cpu_tlb_fill; cc->debug_excp_handler = arm_debug_excp_handler; cc->do_unaligned_access = arm_cpu_do_unaligned_access; } static void arm_cpu_instance_init(CPUState *obj) { #if 0 ARMCPUClass *acc = ARM_CPU_GET_CLASS(obj); acc->info->initfn(obj); #endif arm_cpu_post_init(obj); } ARMCPU *cpu_arm_init(struct uc_struct *uc) { ARMCPU *cpu; CPUState *cs; CPUClass *cc; CPUARMState *env; cpu = calloc(1, sizeof(*cpu)); if (cpu == NULL) { return NULL; } #if !defined(TARGET_AARCH64) if (uc->mode & UC_MODE_MCLASS) { uc->cpu_model = UC_CPU_ARM_CORTEX_M33; } else if (uc->mode & UC_MODE_ARM926) { uc->cpu_model = UC_CPU_ARM_926; } else if (uc->mode & UC_MODE_ARM946) { uc->cpu_model = UC_CPU_ARM_946; } else if (uc->mode & UC_MODE_ARM1176) { uc->cpu_model = UC_CPU_ARM_1176; } else if (uc->cpu_model == INT_MAX) { if (uc->mode & UC_MODE_BIG_ENDIAN) { uc->cpu_model = UC_CPU_ARM_1176; // For BE32 mode. } else { uc->cpu_model = UC_CPU_ARM_CORTEX_A15; // cortex-a15 } } else if (uc->cpu_model >= ARR_SIZE(arm_cpus)) { free(cpu); return NULL; } #endif cs = (CPUState *)cpu; cc = (CPUClass *)&cpu->cc; cs->cc = cc; cs->uc = uc; uc->cpu = (CPUState *)cpu; /* init CPUClass */ cpu_class_init(uc, cc); /* init ARMCPUClass */ arm_cpu_class_init(uc, cc); /* init CPUState */ cpu_common_initfn(uc, cs); /* init ARMCPU */ arm_cpu_initfn(uc, cs); #if !defined(TARGET_AARCH64) /* init ARM types */ if (arm_cpus[uc->cpu_model].class_init) { arm_cpus[uc->cpu_model].class_init(uc, cc, uc); } if (arm_cpus[uc->cpu_model].initfn) { arm_cpus[uc->cpu_model].initfn(uc, cs); } #endif /* postinit ARMCPU */ arm_cpu_instance_init(cs); /* realize ARMCPU */ arm_cpu_realizefn(uc, cs); // init address space cpu_address_space_init(cs, 0, cs->memory); qemu_init_vcpu(cs); // UC_MODE_BIG_ENDIAN means big endian code and big endian data (BE32), which // is only supported before ARMv7-A (and it only makes sense in qemu usermode!). // // UC_MODE_ARMBE8 & BE32 difference shouldn't exist in fact. We do this for // backward compatibility. // // UC_MODE_ARMBE8 -> little endian code, big endian data // UC_MODE_ARMBE8 | UC_MODE_BIG_ENDIAN -> big endian code, big endian data // // In QEMU system, all arm instruction fetch **should be** little endian, however // we hack it to support (usermode) BE32. // // Reference: // https://developer.arm.com/documentation/ddi0406/c/Application-Level-Architecture/Application-Level-Memory-Model/Endian-support/Instruction-endianness?lang=en // https://developer.arm.com/documentation/den0024/a/ARMv8-Registers/Endianness env = &cpu->env; if (uc->mode & UC_MODE_ARMBE8 || uc->mode & UC_MODE_BIG_ENDIAN) { // Big endian data access. env->uncached_cpsr |= CPSR_E; } if (uc->mode & UC_MODE_BIG_ENDIAN) { // Big endian code access. env->cp15.sctlr_ns |= SCTLR_B; } // Backward compatiblity, start arm CPU in non-secure state. env->cp15.scr_el3 |= SCR_NS; arm_rebuild_hflags(env); return cpu; }