/* * QEMU MIPS CPU * * Copyright (c) 2012 SUSE LINUX Products GmbH * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see * */ #include "qemu/osdep.h" #include "qemu/cutils.h" #include "qemu/qemu-print.h" #include "qapi/error.h" #include "cpu.h" #include "internal.h" #include "kvm_mips.h" #include "qemu/module.h" #include "sysemu/kvm.h" #include "sysemu/qtest.h" #include "exec/exec-all.h" #include "hw/qdev-properties.h" #include "hw/qdev-clock.h" #include "semihosting/semihost.h" #include "fpu_helper.h" const char regnames[32][3] = { "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3", "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", }; static void fpu_dump_fpr(fpr_t *fpr, FILE *f, bool is_fpu64) { if (is_fpu64) { qemu_fprintf(f, "w:%08x d:%016" PRIx64 " fd:%13g fs:%13g psu: %13g\n", fpr->w[FP_ENDIAN_IDX], fpr->d, (double)fpr->fd, (double)fpr->fs[FP_ENDIAN_IDX], (double)fpr->fs[!FP_ENDIAN_IDX]); } else { fpr_t tmp; tmp.w[FP_ENDIAN_IDX] = fpr->w[FP_ENDIAN_IDX]; tmp.w[!FP_ENDIAN_IDX] = (fpr + 1)->w[FP_ENDIAN_IDX]; qemu_fprintf(f, "w:%08x d:%016" PRIx64 " fd:%13g fs:%13g psu:%13g\n", tmp.w[FP_ENDIAN_IDX], tmp.d, (double)tmp.fd, (double)tmp.fs[FP_ENDIAN_IDX], (double)tmp.fs[!FP_ENDIAN_IDX]); } } static void fpu_dump_state(CPUMIPSState *env, FILE *f, int flags) { int i; bool is_fpu64 = !!(env->hflags & MIPS_HFLAG_F64); qemu_fprintf(f, "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d fp_status 0x%02x\n", env->active_fpu.fcr0, env->active_fpu.fcr31, is_fpu64, get_float_exception_flags(&env->active_fpu.fp_status)); for (i = 0; i < 32; (is_fpu64) ? i++ : (i += 2)) { qemu_fprintf(f, "%3s: ", fregnames[i]); fpu_dump_fpr(&env->active_fpu.fpr[i], f, is_fpu64); } } static void mips_cpu_dump_state(CPUState *cs, FILE *f, int flags) { MIPSCPU *cpu = MIPS_CPU(cs); CPUMIPSState *env = &cpu->env; int i; qemu_fprintf(f, "pc=0x" TARGET_FMT_lx " HI=0x" TARGET_FMT_lx " LO=0x" TARGET_FMT_lx " ds %04x " TARGET_FMT_lx " " TARGET_FMT_ld "\n", env->active_tc.PC, env->active_tc.HI[0], env->active_tc.LO[0], env->hflags, env->btarget, env->bcond); for (i = 0; i < 32; i++) { if ((i & 3) == 0) { qemu_fprintf(f, "GPR%02d:", i); } qemu_fprintf(f, " %s " TARGET_FMT_lx, regnames[i], env->active_tc.gpr[i]); if ((i & 3) == 3) { qemu_fprintf(f, "\n"); } } qemu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x" TARGET_FMT_lx "\n", env->CP0_Status, env->CP0_Cause, env->CP0_EPC); qemu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x%016" PRIx64 "\n", env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr); qemu_fprintf(f, " Config2 0x%08x Config3 0x%08x\n", env->CP0_Config2, env->CP0_Config3); qemu_fprintf(f, " Config4 0x%08x Config5 0x%08x\n", env->CP0_Config4, env->CP0_Config5); if ((flags & CPU_DUMP_FPU) && (env->hflags & MIPS_HFLAG_FPU)) { fpu_dump_state(env, f, flags); } } void cpu_set_exception_base(int vp_index, target_ulong address) { MIPSCPU *vp = MIPS_CPU(qemu_get_cpu(vp_index)); vp->env.exception_base = address; } static void mips_cpu_set_pc(CPUState *cs, vaddr value) { MIPSCPU *cpu = MIPS_CPU(cs); mips_env_set_pc(&cpu->env, value); } static vaddr mips_cpu_get_pc(CPUState *cs) { MIPSCPU *cpu = MIPS_CPU(cs); return cpu->env.active_tc.PC; } static bool mips_cpu_has_work(CPUState *cs) { MIPSCPU *cpu = MIPS_CPU(cs); CPUMIPSState *env = &cpu->env; bool has_work = false; /* * Prior to MIPS Release 6 it is implementation dependent if non-enabled * interrupts wake-up the CPU, however most of the implementations only * check for interrupts that can be taken. */ if ((cs->interrupt_request & CPU_INTERRUPT_HARD) && cpu_mips_hw_interrupts_pending(env)) { if (cpu_mips_hw_interrupts_enabled(env) || (env->insn_flags & ISA_MIPS_R6)) { has_work = true; } } /* MIPS-MT has the ability to halt the CPU. */ if (ase_mt_available(env)) { /* * The QEMU model will issue an _WAKE request whenever the CPUs * should be woken up. */ if (cs->interrupt_request & CPU_INTERRUPT_WAKE) { has_work = true; } if (!mips_vpe_active(env)) { has_work = false; } } /* MIPS Release 6 has the ability to halt the CPU. */ if (env->CP0_Config5 & (1 << CP0C5_VP)) { if (cs->interrupt_request & CPU_INTERRUPT_WAKE) { has_work = true; } if (!mips_vp_active(env)) { has_work = false; } } return has_work; } #include "cpu-defs.c.inc" static void mips_cpu_reset_hold(Object *obj) { CPUState *cs = CPU(obj); MIPSCPU *cpu = MIPS_CPU(cs); MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(cpu); CPUMIPSState *env = &cpu->env; if (mcc->parent_phases.hold) { mcc->parent_phases.hold(obj); } memset(env, 0, offsetof(CPUMIPSState, end_reset_fields)); /* Reset registers to their default values */ env->CP0_PRid = env->cpu_model->CP0_PRid; env->CP0_Config0 = env->cpu_model->CP0_Config0; #if TARGET_BIG_ENDIAN env->CP0_Config0 |= (1 << CP0C0_BE); #endif env->CP0_Config1 = env->cpu_model->CP0_Config1; env->CP0_Config2 = env->cpu_model->CP0_Config2; env->CP0_Config3 = env->cpu_model->CP0_Config3; env->CP0_Config4 = env->cpu_model->CP0_Config4; env->CP0_Config4_rw_bitmask = env->cpu_model->CP0_Config4_rw_bitmask; env->CP0_Config5 = env->cpu_model->CP0_Config5; env->CP0_Config5_rw_bitmask = env->cpu_model->CP0_Config5_rw_bitmask; env->CP0_Config6 = env->cpu_model->CP0_Config6; env->CP0_Config6_rw_bitmask = env->cpu_model->CP0_Config6_rw_bitmask; env->CP0_Config7 = env->cpu_model->CP0_Config7; env->CP0_Config7_rw_bitmask = env->cpu_model->CP0_Config7_rw_bitmask; env->CP0_LLAddr_rw_bitmask = env->cpu_model->CP0_LLAddr_rw_bitmask << env->cpu_model->CP0_LLAddr_shift; env->CP0_LLAddr_shift = env->cpu_model->CP0_LLAddr_shift; env->SYNCI_Step = env->cpu_model->SYNCI_Step; env->CCRes = env->cpu_model->CCRes; env->CP0_Status_rw_bitmask = env->cpu_model->CP0_Status_rw_bitmask; env->CP0_TCStatus_rw_bitmask = env->cpu_model->CP0_TCStatus_rw_bitmask; env->CP0_SRSCtl = env->cpu_model->CP0_SRSCtl; env->current_tc = 0; env->SEGBITS = env->cpu_model->SEGBITS; env->SEGMask = (target_ulong)((1ULL << env->cpu_model->SEGBITS) - 1); #if defined(TARGET_MIPS64) if (env->cpu_model->insn_flags & ISA_MIPS3) { env->SEGMask |= 3ULL << 62; } #endif env->PABITS = env->cpu_model->PABITS; env->CP0_SRSConf0_rw_bitmask = env->cpu_model->CP0_SRSConf0_rw_bitmask; env->CP0_SRSConf0 = env->cpu_model->CP0_SRSConf0; env->CP0_SRSConf1_rw_bitmask = env->cpu_model->CP0_SRSConf1_rw_bitmask; env->CP0_SRSConf1 = env->cpu_model->CP0_SRSConf1; env->CP0_SRSConf2_rw_bitmask = env->cpu_model->CP0_SRSConf2_rw_bitmask; env->CP0_SRSConf2 = env->cpu_model->CP0_SRSConf2; env->CP0_SRSConf3_rw_bitmask = env->cpu_model->CP0_SRSConf3_rw_bitmask; env->CP0_SRSConf3 = env->cpu_model->CP0_SRSConf3; env->CP0_SRSConf4_rw_bitmask = env->cpu_model->CP0_SRSConf4_rw_bitmask; env->CP0_SRSConf4 = env->cpu_model->CP0_SRSConf4; env->CP0_PageGrain_rw_bitmask = env->cpu_model->CP0_PageGrain_rw_bitmask; env->CP0_PageGrain = env->cpu_model->CP0_PageGrain; env->CP0_EBaseWG_rw_bitmask = env->cpu_model->CP0_EBaseWG_rw_bitmask; env->active_fpu.fcr0 = env->cpu_model->CP1_fcr0; env->active_fpu.fcr31_rw_bitmask = env->cpu_model->CP1_fcr31_rw_bitmask; env->active_fpu.fcr31 = env->cpu_model->CP1_fcr31; env->msair = env->cpu_model->MSAIR; env->insn_flags = env->cpu_model->insn_flags; #if defined(CONFIG_USER_ONLY) env->CP0_Status = (MIPS_HFLAG_UM << CP0St_KSU); # ifdef TARGET_MIPS64 /* Enable 64-bit register mode. */ env->CP0_Status |= (1 << CP0St_PX); # endif # ifdef TARGET_ABI_MIPSN64 /* Enable 64-bit address mode. */ env->CP0_Status |= (1 << CP0St_UX); # endif /* * Enable access to the CPUNum, SYNCI_Step, CC, and CCRes RDHWR * hardware registers. */ env->CP0_HWREna |= 0x0000000F; if (env->CP0_Config1 & (1 << CP0C1_FP)) { env->CP0_Status |= (1 << CP0St_CU1); } if (env->CP0_Config3 & (1 << CP0C3_DSPP)) { env->CP0_Status |= (1 << CP0St_MX); } # if defined(TARGET_MIPS64) /* For MIPS64, init FR bit to 1 if FPU unit is there and bit is writable. */ if ((env->CP0_Config1 & (1 << CP0C1_FP)) && (env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) { env->CP0_Status |= (1 << CP0St_FR); } # endif #else /* !CONFIG_USER_ONLY */ if (env->hflags & MIPS_HFLAG_BMASK) { /* * If the exception was raised from a delay slot, * come back to the jump. */ env->CP0_ErrorEPC = (env->active_tc.PC - (env->hflags & MIPS_HFLAG_B16 ? 2 : 4)); } else { env->CP0_ErrorEPC = env->active_tc.PC; } env->active_tc.PC = env->exception_base; env->CP0_Random = env->tlb->nb_tlb - 1; env->tlb->tlb_in_use = env->tlb->nb_tlb; env->CP0_Wired = 0; env->CP0_GlobalNumber = (cs->cpu_index & 0xFF) << CP0GN_VPId; env->CP0_EBase = KSEG0_BASE | (cs->cpu_index & 0x3FF); if (env->CP0_Config3 & (1 << CP0C3_CMGCR)) { env->CP0_CMGCRBase = 0x1fbf8000 >> 4; } env->CP0_EntryHi_ASID_mask = (env->CP0_Config5 & (1 << CP0C5_MI)) ? 0x0 : (env->CP0_Config4 & (1 << CP0C4_AE)) ? 0x3ff : 0xff; env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL); if (env->insn_flags & INSN_LOONGSON2F) { /* Loongson-2F has those bits hardcoded to 1 */ env->CP0_Status |= (1 << CP0St_KX) | (1 << CP0St_SX) | (1 << CP0St_UX); } /* * Vectored interrupts not implemented, timer on int 7, * no performance counters. */ env->CP0_IntCtl = 0xe0000000; { int i; for (i = 0; i < 7; i++) { env->CP0_WatchLo[i] = 0; env->CP0_WatchHi[i] = 1 << CP0WH_M; } env->CP0_WatchLo[7] = 0; env->CP0_WatchHi[7] = 0; } /* Count register increments in debug mode, EJTAG version 1 */ env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER); cpu_mips_store_count(env, 1); if (ase_mt_available(env)) { int i; /* Only TC0 on VPE 0 starts as active. */ for (i = 0; i < ARRAY_SIZE(env->tcs); i++) { env->tcs[i].CP0_TCBind = cs->cpu_index << CP0TCBd_CurVPE; env->tcs[i].CP0_TCHalt = 1; } env->active_tc.CP0_TCHalt = 1; cs->halted = 1; if (cs->cpu_index == 0) { /* VPE0 starts up enabled. */ env->mvp->CP0_MVPControl |= (1 << CP0MVPCo_EVP); env->CP0_VPEConf0 |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA); /* TC0 starts up unhalted. */ cs->halted = 0; env->active_tc.CP0_TCHalt = 0; env->tcs[0].CP0_TCHalt = 0; /* With thread 0 active. */ env->active_tc.CP0_TCStatus = (1 << CP0TCSt_A); env->tcs[0].CP0_TCStatus = (1 << CP0TCSt_A); } } /* * Configure default legacy segmentation control. We use this regardless of * whether segmentation control is presented to the guest. */ /* KSeg3 (seg0 0xE0000000..0xFFFFFFFF) */ env->CP0_SegCtl0 = (CP0SC_AM_MK << CP0SC_AM); /* KSeg2 (seg1 0xC0000000..0xDFFFFFFF) */ env->CP0_SegCtl0 |= ((CP0SC_AM_MSK << CP0SC_AM)) << 16; /* KSeg1 (seg2 0xA0000000..0x9FFFFFFF) */ env->CP0_SegCtl1 = (0 << CP0SC_PA) | (CP0SC_AM_UK << CP0SC_AM) | (2 << CP0SC_C); /* KSeg0 (seg3 0x80000000..0x9FFFFFFF) */ env->CP0_SegCtl1 |= ((0 << CP0SC_PA) | (CP0SC_AM_UK << CP0SC_AM) | (3 << CP0SC_C)) << 16; /* USeg (seg4 0x40000000..0x7FFFFFFF) */ env->CP0_SegCtl2 = (2 << CP0SC_PA) | (CP0SC_AM_MUSK << CP0SC_AM) | (1 << CP0SC_EU) | (2 << CP0SC_C); /* USeg (seg5 0x00000000..0x3FFFFFFF) */ env->CP0_SegCtl2 |= ((0 << CP0SC_PA) | (CP0SC_AM_MUSK << CP0SC_AM) | (1 << CP0SC_EU) | (2 << CP0SC_C)) << 16; /* XKPhys (note, SegCtl2.XR = 0, so XAM won't be used) */ env->CP0_SegCtl1 |= (CP0SC_AM_UK << CP0SC1_XAM); #endif /* !CONFIG_USER_ONLY */ if ((env->insn_flags & ISA_MIPS_R6) && (env->active_fpu.fcr0 & (1 << FCR0_F64))) { /* Status.FR = 0 mode in 64-bit FPU not allowed in R6 */ env->CP0_Status |= (1 << CP0St_FR); } if (env->insn_flags & ISA_MIPS_R6) { /* PTW = 1 */ env->CP0_PWSize = 0x40; /* GDI = 12 */ /* UDI = 12 */ /* MDI = 12 */ /* PRI = 12 */ /* PTEI = 2 */ env->CP0_PWField = 0x0C30C302; } else { /* GDI = 0 */ /* UDI = 0 */ /* MDI = 0 */ /* PRI = 0 */ /* PTEI = 2 */ env->CP0_PWField = 0x02; } if (env->CP0_Config3 & (1 << CP0C3_ISA) & (1 << (CP0C3_ISA + 1))) { /* microMIPS on reset when Config3.ISA is 3 */ env->hflags |= MIPS_HFLAG_M16; } msa_reset(env); compute_hflags(env); restore_fp_status(env); restore_pamask(env); cs->exception_index = EXCP_NONE; if (semihosting_get_argc()) { /* UHI interface can be used to obtain argc and argv */ env->active_tc.gpr[4] = -1; } #ifndef CONFIG_USER_ONLY if (kvm_enabled()) { kvm_mips_reset_vcpu(cpu); } #endif } static void mips_cpu_disas_set_info(CPUState *s, disassemble_info *info) { MIPSCPU *cpu = MIPS_CPU(s); CPUMIPSState *env = &cpu->env; if (!(env->insn_flags & ISA_NANOMIPS32)) { #if TARGET_BIG_ENDIAN info->print_insn = print_insn_big_mips; #else info->print_insn = print_insn_little_mips; #endif } else { info->print_insn = print_insn_nanomips; } } /* * Since commit 6af0bf9c7c3 this model assumes a CPU clocked at 200MHz. */ #define CPU_FREQ_HZ_DEFAULT 200000000 static void mips_cp0_period_set(MIPSCPU *cpu) { CPUMIPSState *env = &cpu->env; env->cp0_count_ns = clock_ticks_to_ns(MIPS_CPU(cpu)->clock, env->cpu_model->CCRes); assert(env->cp0_count_ns); } static void mips_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); MIPSCPU *cpu = MIPS_CPU(dev); CPUMIPSState *env = &cpu->env; MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(dev); Error *local_err = NULL; if (!clock_get(cpu->clock)) { #ifndef CONFIG_USER_ONLY if (!qtest_enabled()) { g_autofree char *cpu_freq_str = freq_to_str(CPU_FREQ_HZ_DEFAULT); warn_report("CPU input clock is not connected to any output clock, " "using default frequency of %s.", cpu_freq_str); } #endif /* Initialize the frequency in case the clock remains unconnected. */ clock_set_hz(cpu->clock, CPU_FREQ_HZ_DEFAULT); } mips_cp0_period_set(cpu); cpu_exec_realizefn(cs, &local_err); if (local_err != NULL) { error_propagate(errp, local_err); return; } env->exception_base = (int32_t)0xBFC00000; #if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY) mmu_init(env, env->cpu_model); #endif fpu_init(env, env->cpu_model); mvp_init(env); cpu_reset(cs); qemu_init_vcpu(cs); mcc->parent_realize(dev, errp); } static void mips_cpu_initfn(Object *obj) { MIPSCPU *cpu = MIPS_CPU(obj); CPUMIPSState *env = &cpu->env; MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(obj); cpu_set_cpustate_pointers(cpu); cpu->clock = qdev_init_clock_in(DEVICE(obj), "clk-in", NULL, cpu, 0); env->cpu_model = mcc->cpu_def; } static char *mips_cpu_type_name(const char *cpu_model) { return g_strdup_printf(MIPS_CPU_TYPE_NAME("%s"), cpu_model); } static ObjectClass *mips_cpu_class_by_name(const char *cpu_model) { ObjectClass *oc; char *typename; typename = mips_cpu_type_name(cpu_model); oc = object_class_by_name(typename); g_free(typename); return oc; } #ifndef CONFIG_USER_ONLY #include "hw/core/sysemu-cpu-ops.h" static const struct SysemuCPUOps mips_sysemu_ops = { .get_phys_page_debug = mips_cpu_get_phys_page_debug, .legacy_vmsd = &vmstate_mips_cpu, }; #endif #ifdef CONFIG_TCG #include "hw/core/tcg-cpu-ops.h" /* * NB: cannot be const, as some elements are changed for specific * mips hardware (see hw/mips/jazz.c). */ static const struct TCGCPUOps mips_tcg_ops = { .initialize = mips_tcg_init, .synchronize_from_tb = mips_cpu_synchronize_from_tb, .restore_state_to_opc = mips_restore_state_to_opc, #if !defined(CONFIG_USER_ONLY) .tlb_fill = mips_cpu_tlb_fill, .cpu_exec_interrupt = mips_cpu_exec_interrupt, .do_interrupt = mips_cpu_do_interrupt, .do_transaction_failed = mips_cpu_do_transaction_failed, .do_unaligned_access = mips_cpu_do_unaligned_access, .io_recompile_replay_branch = mips_io_recompile_replay_branch, #endif /* !CONFIG_USER_ONLY */ }; #endif /* CONFIG_TCG */ static void mips_cpu_class_init(ObjectClass *c, void *data) { MIPSCPUClass *mcc = MIPS_CPU_CLASS(c); CPUClass *cc = CPU_CLASS(c); DeviceClass *dc = DEVICE_CLASS(c); ResettableClass *rc = RESETTABLE_CLASS(c); device_class_set_parent_realize(dc, mips_cpu_realizefn, &mcc->parent_realize); resettable_class_set_parent_phases(rc, NULL, mips_cpu_reset_hold, NULL, &mcc->parent_phases); cc->class_by_name = mips_cpu_class_by_name; cc->has_work = mips_cpu_has_work; cc->dump_state = mips_cpu_dump_state; cc->set_pc = mips_cpu_set_pc; cc->get_pc = mips_cpu_get_pc; cc->gdb_read_register = mips_cpu_gdb_read_register; cc->gdb_write_register = mips_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY cc->sysemu_ops = &mips_sysemu_ops; #endif cc->disas_set_info = mips_cpu_disas_set_info; cc->gdb_num_core_regs = 73; cc->gdb_stop_before_watchpoint = true; #ifdef CONFIG_TCG cc->tcg_ops = &mips_tcg_ops; #endif /* CONFIG_TCG */ } static const TypeInfo mips_cpu_type_info = { .name = TYPE_MIPS_CPU, .parent = TYPE_CPU, .instance_size = sizeof(MIPSCPU), .instance_init = mips_cpu_initfn, .abstract = true, .class_size = sizeof(MIPSCPUClass), .class_init = mips_cpu_class_init, }; static void mips_cpu_cpudef_class_init(ObjectClass *oc, void *data) { MIPSCPUClass *mcc = MIPS_CPU_CLASS(oc); mcc->cpu_def = data; } static void mips_register_cpudef_type(const struct mips_def_t *def) { char *typename = mips_cpu_type_name(def->name); TypeInfo ti = { .name = typename, .parent = TYPE_MIPS_CPU, .class_init = mips_cpu_cpudef_class_init, .class_data = (void *)def, }; type_register(&ti); g_free(typename); } static void mips_cpu_register_types(void) { int i; type_register_static(&mips_cpu_type_info); for (i = 0; i < mips_defs_number; i++) { mips_register_cpudef_type(&mips_defs[i]); } } type_init(mips_cpu_register_types) /* Could be used by generic CPU object */ MIPSCPU *mips_cpu_create_with_clock(const char *cpu_type, Clock *cpu_refclk) { DeviceState *cpu; cpu = DEVICE(object_new(cpu_type)); qdev_connect_clock_in(cpu, "clk-in", cpu_refclk); qdev_realize(cpu, NULL, &error_abort); return MIPS_CPU(cpu); } bool cpu_supports_isa(const CPUMIPSState *env, uint64_t isa_mask) { return (env->cpu_model->insn_flags & isa_mask) != 0; } bool cpu_type_supports_isa(const char *cpu_type, uint64_t isa) { const MIPSCPUClass *mcc = MIPS_CPU_CLASS(object_class_by_name(cpu_type)); return (mcc->cpu_def->insn_flags & isa) != 0; } bool cpu_type_supports_cps_smp(const char *cpu_type) { const MIPSCPUClass *mcc = MIPS_CPU_CLASS(object_class_by_name(cpu_type)); return (mcc->cpu_def->CP0_Config3 & (1 << CP0C3_CMGCR)) != 0; }