void cpu_state_reset(CPUMIPSState *env) { if (qemu_loglevel_mask(CPU_LOG_RESET)) { qemu_log("CPU Reset (CPU %d)\n", env->cpu_index); log_cpu_state(env, 0); } memset(env, 0, offsetof(CPUMIPSState, breakpoints)); tlb_flush(env, 1); /* Reset registers to their default values */ env->CP0_PRid = env->cpu_model->CP0_PRid; env->CP0_Config0 = env->cpu_model->CP0_Config0; #ifdef TARGET_WORDS_BIGENDIAN 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_Config6 = env->cpu_model->CP0_Config6; env->CP0_Config7 = env->cpu_model->CP0_Config7; 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->PAMask = (target_ulong)((1ULL << env->cpu_model->PABITS) - 1); 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->active_fpu.fcr0 = env->cpu_model->CP1_fcr0; env->insn_flags = env->cpu_model->insn_flags; #if defined(CONFIG_USER_ONLY) env->hflags = MIPS_HFLAG_UM; /* 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->hflags |= MIPS_HFLAG_FPU; } #ifdef TARGET_MIPS64 if (env->active_fpu.fcr0 & (1 << FCR0_F64)) { env->hflags |= MIPS_HFLAG_F64; } #endif #else 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 - 4; } else { env->CP0_ErrorEPC = env->active_tc.PC; } env->active_tc.PC = (int32_t)0xBFC00000; env->CP0_Random = env->tlb->nb_tlb - 1; env->tlb->tlb_in_use = env->tlb->nb_tlb; env->CP0_Wired = 0; env->CP0_EBase = 0x80000000 | (env->cpu_index & 0x3FF); env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL); /* 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] = 0x80000000; } 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); env->hflags = MIPS_HFLAG_CP0; if (env->CP0_Config3 & (1 << CP0C3_MT)) { int i; /* Only TC0 on VPE 0 starts as active. */ for (i = 0; i < ARRAY_SIZE(env->tcs); i++) { env->tcs[i].CP0_TCBind = env->cpu_index << CP0TCBd_CurVPE; env->tcs[i].CP0_TCHalt = 1; } env->active_tc.CP0_TCHalt = 1; env->halted = 1; if (!env->cpu_index) { /* VPE0 starts up enabled. */ env->mvp->CP0_MVPControl |= (1 << CP0MVPCo_EVP); env->CP0_VPEConf0 |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA); /* TC0 starts up unhalted. */ env->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); } } #endif #if defined(TARGET_MIPS64) if (env->cpu_model->insn_flags & ISA_MIPS3) { env->hflags |= MIPS_HFLAG_64; } #endif env->exception_index = EXCP_NONE; }