#ifndef MIPS_CPU_H #define MIPS_CPU_H #include "cpu-qom.h" #include "exec/cpu-defs.h" #include "fpu/softfloat-types.h" #include "mips-defs.h" #ifdef TARGET_CHERI #include "cheri_defs.h" #include "cheri-lazy-capregs-types.h" #endif #define TCG_GUEST_DEFAULT_MO (0) typedef struct CPUMIPSTLBContext CPUMIPSTLBContext; /* MSA Context */ #define MSA_WRLEN (128) typedef union wr_t wr_t; union wr_t { int8_t b[MSA_WRLEN / 8]; int16_t h[MSA_WRLEN / 16]; int32_t w[MSA_WRLEN / 32]; int64_t d[MSA_WRLEN / 64]; }; typedef union fpr_t fpr_t; union fpr_t { float64 fd; /* ieee double precision */ float32 fs[2];/* ieee single precision */ uint64_t d; /* binary double fixed-point */ uint32_t w[2]; /* binary single fixed-point */ /* FPU/MSA register mapping is not tested on big-endian hosts. */ wr_t wr; /* vector data */ }; /* *define FP_ENDIAN_IDX to access the same location * in the fpr_t union regardless of the host endianness */ #if defined(HOST_WORDS_BIGENDIAN) # define FP_ENDIAN_IDX 1 #else # define FP_ENDIAN_IDX 0 #endif typedef struct CPUMIPSFPUContext CPUMIPSFPUContext; struct CPUMIPSFPUContext { /* Floating point registers */ fpr_t fpr[32]; float_status fp_status; /* fpu implementation/revision register (fir) */ uint32_t fcr0; #define FCR0_FREP 29 #define FCR0_UFRP 28 #define FCR0_HAS2008 23 #define FCR0_F64 22 #define FCR0_L 21 #define FCR0_W 20 #define FCR0_3D 19 #define FCR0_PS 18 #define FCR0_D 17 #define FCR0_S 16 #define FCR0_PRID 8 #define FCR0_REV 0 /* fcsr */ uint32_t fcr31_rw_bitmask; uint32_t fcr31; #define FCR31_FS 24 #define FCR31_ABS2008 19 #define FCR31_NAN2008 18 #define SET_FP_COND(num, env) do { ((env).fcr31) |= \ ((num) ? (1 << ((num) + 24)) : \ (1 << 23)); \ } while (0) #define CLEAR_FP_COND(num, env) do { ((env).fcr31) &= \ ~((num) ? (1 << ((num) + 24)) : \ (1 << 23)); \ } while (0) #define GET_FP_COND(env) ((((env).fcr31 >> 24) & 0xfe) | \ (((env).fcr31 >> 23) & 0x1)) #define GET_FP_CAUSE(reg) (((reg) >> 12) & 0x3f) #define GET_FP_ENABLE(reg) (((reg) >> 7) & 0x1f) #define GET_FP_FLAGS(reg) (((reg) >> 2) & 0x1f) #define SET_FP_CAUSE(reg, v) do { (reg) = ((reg) & ~(0x3f << 12)) | \ ((v & 0x3f) << 12); \ } while (0) #define SET_FP_ENABLE(reg, v) do { (reg) = ((reg) & ~(0x1f << 7)) | \ ((v & 0x1f) << 7); \ } while (0) #define SET_FP_FLAGS(reg, v) do { (reg) = ((reg) & ~(0x1f << 2)) | \ ((v & 0x1f) << 2); \ } while (0) #define UPDATE_FP_FLAGS(reg, v) do { (reg) |= ((v & 0x1f) << 2); } while (0) #define FP_INEXACT 1 #define FP_UNDERFLOW 2 #define FP_OVERFLOW 4 #define FP_DIV0 8 #define FP_INVALID 16 #define FP_UNIMPLEMENTED 32 }; #define TARGET_INSN_START_EXTRA_WORDS 2 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext; struct CPUMIPSMVPContext { int32_t CP0_MVPControl; #define CP0MVPCo_CPA 3 #define CP0MVPCo_STLB 2 #define CP0MVPCo_VPC 1 #define CP0MVPCo_EVP 0 int32_t CP0_MVPConf0; #define CP0MVPC0_M 31 #define CP0MVPC0_TLBS 29 #define CP0MVPC0_GS 28 #define CP0MVPC0_PCP 27 #define CP0MVPC0_PTLBE 16 #define CP0MVPC0_TCA 15 #define CP0MVPC0_PVPE 10 #define CP0MVPC0_PTC 0 int32_t CP0_MVPConf1; #define CP0MVPC1_CIM 31 #define CP0MVPC1_CIF 30 #define CP0MVPC1_PCX 20 #define CP0MVPC1_PCP2 10 #define CP0MVPC1_PCP1 0 }; typedef struct mips_def_t mips_def_t; #define MIPS_SHADOW_SET_MAX 16 #define MIPS_TC_MAX 5 #define MIPS_FPU_MAX 1 #define MIPS_DSP_ACC 4 #define MIPS_KSCRATCH_NUM 6 #define MIPS_MAAR_MAX 16 /* Must be an even number. */ #ifdef CONFIG_MIPS_LOG_INSTR struct cvtrace { uint8_t version; #define CVT_GPR 1 /* GPR change (val2) */ #define CVT_LD_GPR 2 /* Load into GPR (val2) from address (val1) */ #define CVT_ST_GPR 3 /* Store from GPR (val2) to address (val1) */ #define CVT_NO_REG 4 /* No register is changed. */ #define CVT_CAP 11 /* Cap change (val2,val3,val4,val5) */ #define CVT_LD_CAP 12 /* Load Cap (val2,val3,val4,val5) from addr (val1) */ #define CVT_ST_CAP 13 /* Store Cap (val2,val3,val4,val5) to addr (val1) */ uint8_t exception; /* 0=none, 1=TLB Mod, 2=TLB Load, 3=TLB Store, etc. */ uint16_t cycles; /* Currently not used. */ uint32_t inst; /* Encoded instruction. */ uint64_t pc; /* PC value of instruction. */ uint64_t val1; /* val1 is used for memory address. */ uint64_t val2; /* val2, val3, val4, val5 are used for reg content. */ uint64_t val3; uint64_t val4; uint64_t val5; uint8_t thread; /* Hardware thread/CPU (i.e. cpu->cpu_index ) */ uint8_t asid; /* Address Space ID (i.e. CP0_TCStatus & 0xff) */ } __attribute__((packed)); typedef struct cvtrace cvtrace_t; /* Version 3 Cheri Stream Trace header info */ #define CVT_QEMU_VERSION (0x80U + 3) #define CVT_QEMU_MAGIC "CheriTraceV03" #endif // CONFIG_MIPS_LOG_INSTR #if defined(TARGET_CHERI) struct cheri_cap_hwregs { cap_register_t DDC; /* CapHwr 0 */ cap_register_t UserTlsCap; /* CapHwr 1 */ cap_register_t PrivTlsCap; /* CapHwr 8 */ cap_register_t KR1C; /* CapHwr 22 */ cap_register_t KR2C; /* CapHwr 23 */ cap_register_t ErrorEPCC; /* CapHwr 28 */ cap_register_t KCC; /* CapHwr 29 */ cap_register_t KDC; /* CapHwr 30 */ cap_register_t EPCC; /* CapHwr 31 */ }; #endif /* TARGET_CHERI */ /* * Summary of CP0 registers * ======================== * * * Register 0 Register 1 Register 2 Register 3 * ---------- ---------- ---------- ---------- * * 0 Index Random EntryLo0 EntryLo1 * 1 MVPControl VPEControl TCStatus GlobalNumber * 2 MVPConf0 VPEConf0 TCBind * 3 MVPConf1 VPEConf1 TCRestart * 4 VPControl YQMask TCHalt * 5 VPESchedule TCContext * 6 VPEScheFBack TCSchedule * 7 VPEOpt TCScheFBack TCOpt * * * Register 4 Register 5 Register 6 Register 7 * ---------- ---------- ---------- ---------- * * 0 Context PageMask Wired HWREna * 1 ContextConfig PageGrain SRSConf0 * 2 UserLocal SegCtl0 SRSConf1 * 3 XContextConfig SegCtl1 SRSConf2 * 4 DebugContextID SegCtl2 SRSConf3 * 5 MemoryMapID PWBase SRSConf4 * 6 PWField PWCtl * 7 PWSize * * * Register 8 Register 9 Register 10 Register 11 * ---------- ---------- ----------- ----------- * * 0 BadVAddr Count EntryHi Compare * 1 BadInstr * 2 BadInstrP * 3 BadInstrX * 4 GuestCtl1 GuestCtl0Ext * 5 GuestCtl2 * 6 SAARI GuestCtl3 * 7 SAAR * * * Register 12 Register 13 Register 14 Register 15 * ----------- ----------- ----------- ----------- * * 0 Status Cause EPC PRId * 1 IntCtl EBase * 2 SRSCtl NestedEPC CDMMBase * 3 SRSMap CMGCRBase * 4 View_IPL View_RIPL BEVVA * 5 SRSMap2 NestedExc * 6 GuestCtl0 * 7 GTOffset * * * Register 16 Register 17 Register 18 Register 19 * ----------- ----------- ----------- ----------- * * 0 Config LLAddr WatchLo0 WatchHi * 1 Config1 MAAR WatchLo1 WatchHi * 2 Config2 MAARI WatchLo2 WatchHi * 3 Config3 WatchLo3 WatchHi * 4 Config4 WatchLo4 WatchHi * 5 Config5 WatchLo5 WatchHi * 6 WatchLo6 WatchHi * 7 WatchLo7 WatchHi * * * Register 20 Register 21 Register 22 Register 23 * ----------- ----------- ----------- ----------- * * 0 XContext Debug * 1 TraceControl * 2 TraceControl2 * 3 UserTraceData1 * 4 TraceIBPC * 5 TraceDBPC * 6 Debug2 * 7 * * * Register 24 Register 25 Register 26 Register 27 * ----------- ----------- ----------- ----------- * * 0 DEPC PerfCnt ErrCtl CacheErr * 1 PerfCnt * 2 TraceControl3 PerfCnt * 3 UserTraceData2 PerfCnt * 4 PerfCnt * 5 PerfCnt * 6 PerfCnt * 7 PerfCnt * * * Register 28 Register 29 Register 30 Register 31 * ----------- ----------- ----------- ----------- * * 0 DataLo DataHi ErrorEPC DESAVE * 1 TagLo TagHi * 2 DataLo1 DataHi1 KScratch * 3 TagLo1 TagHi1 KScratch * 4 DataLo2 DataHi2 KScratch * 5 TagLo2 TagHi2 KScratch * 6 DataLo3 DataHi3 KScratch * 7 TagLo3 TagHi3 KScratch * */ #define CP0_REGISTER_00 0 #define CP0_REGISTER_01 1 #define CP0_REGISTER_02 2 #define CP0_REGISTER_03 3 #define CP0_REGISTER_04 4 #define CP0_REGISTER_05 5 #define CP0_REGISTER_06 6 #define CP0_REGISTER_07 7 #define CP0_REGISTER_08 8 #define CP0_REGISTER_09 9 #define CP0_REGISTER_10 10 #define CP0_REGISTER_11 11 #define CP0_REGISTER_12 12 #define CP0_REGISTER_13 13 #define CP0_REGISTER_14 14 #define CP0_REGISTER_15 15 #define CP0_REGISTER_16 16 #define CP0_REGISTER_17 17 #define CP0_REGISTER_18 18 #define CP0_REGISTER_19 19 #define CP0_REGISTER_20 20 #define CP0_REGISTER_21 21 #define CP0_REGISTER_22 22 #define CP0_REGISTER_23 23 #define CP0_REGISTER_24 24 #define CP0_REGISTER_25 25 #define CP0_REGISTER_26 26 #define CP0_REGISTER_27 27 #define CP0_REGISTER_28 28 #define CP0_REGISTER_29 29 #define CP0_REGISTER_30 30 #define CP0_REGISTER_31 31 /* CP0 Register 00 */ #define CP0_REG00__INDEX 0 #define CP0_REG00__MVPCONTROL 1 #define CP0_REG00__MVPCONF0 2 #define CP0_REG00__MVPCONF1 3 #define CP0_REG00__VPCONTROL 4 /* CP0 Register 01 */ #define CP0_REG01__RANDOM 0 #define CP0_REG01__VPECONTROL 1 #define CP0_REG01__VPECONF0 2 #define CP0_REG01__VPECONF1 3 #define CP0_REG01__YQMASK 4 #define CP0_REG01__VPESCHEDULE 5 #define CP0_REG01__VPESCHEFBACK 6 #define CP0_REG01__VPEOPT 7 /* CP0 Register 02 */ #define CP0_REG02__ENTRYLO0 0 #define CP0_REG02__TCSTATUS 1 #define CP0_REG02__TCBIND 2 #define CP0_REG02__TCRESTART 3 #define CP0_REG02__TCHALT 4 #define CP0_REG02__TCCONTEXT 5 #define CP0_REG02__TCSCHEDULE 6 #define CP0_REG02__TCSCHEFBACK 7 /* CP0 Register 03 */ #define CP0_REG03__ENTRYLO1 0 #define CP0_REG03__GLOBALNUM 1 #define CP0_REG03__TCOPT 7 /* CP0 Register 04 */ #define CP0_REG04__CONTEXT 0 #define CP0_REG04__CONTEXTCONFIG 1 #define CP0_REG04__USERLOCAL 2 #define CP0_REG04__XCONTEXTCONFIG 3 #define CP0_REG04__DBGCONTEXTID 4 #define CP0_REG04__MMID 5 /* CP0 Register 05 */ #define CP0_REG05__PAGEMASK 0 #define CP0_REG05__PAGEGRAIN 1 #define CP0_REG05__SEGCTL0 2 #define CP0_REG05__SEGCTL1 3 #define CP0_REG05__SEGCTL2 4 #define CP0_REG05__PWBASE 5 #define CP0_REG05__PWFIELD 6 #define CP0_REG05__PWSIZE 7 /* CP0 Register 06 */ #define CP0_REG06__WIRED 0 #define CP0_REG06__SRSCONF0 1 #define CP0_REG06__SRSCONF1 2 #define CP0_REG06__SRSCONF2 3 #define CP0_REG06__SRSCONF3 4 #define CP0_REG06__SRSCONF4 5 #define CP0_REG06__PWCTL 6 /* CP0 Register 07 */ #define CP0_REG07__HWRENA 0 /* CP0 Register 08 */ #define CP0_REG08__BADVADDR 0 #define CP0_REG08__BADINSTR 1 #define CP0_REG08__BADINSTRP 2 #define CP0_REG08__BADINSTRX 3 /* CP0 Register 09 */ #define CP0_REG09__COUNT 0 #define CP0_REG09__SAARI 6 #define CP0_REG09__SAAR 7 /* CP0 Register 10 */ #define CP0_REG10__ENTRYHI 0 #define CP0_REG10__GUESTCTL1 4 #define CP0_REG10__GUESTCTL2 5 #define CP0_REG10__GUESTCTL3 6 /* CP0 Register 11 */ #define CP0_REG11__COMPARE 0 #define CP0_REG11__GUESTCTL0EXT 4 /* CP0 Register 12 */ #define CP0_REG12__STATUS 0 #define CP0_REG12__INTCTL 1 #define CP0_REG12__SRSCTL 2 #define CP0_REG12__SRSMAP 3 #define CP0_REG12__VIEW_IPL 4 #define CP0_REG12__SRSMAP2 5 #define CP0_REG12__GUESTCTL0 6 #define CP0_REG12__GTOFFSET 7 /* CP0 Register 13 */ #define CP0_REG13__CAUSE 0 #define CP0_REG13__VIEW_RIPL 4 #define CP0_REG13__NESTEDEXC 5 /* CP0 Register 14 */ #define CP0_REG14__EPC 0 #define CP0_REG14__NESTEDEPC 2 /* CP0 Register 15 */ #define CP0_REG15__PRID 0 #define CP0_REG15__EBASE 1 #define CP0_REG15__CDMMBASE 2 #define CP0_REG15__CMGCRBASE 3 #define CP0_REG15__BEVVA 4 /* CP0 Register 16 */ #define CP0_REG16__CONFIG 0 #define CP0_REG16__CONFIG1 1 #define CP0_REG16__CONFIG2 2 #define CP0_REG16__CONFIG3 3 #define CP0_REG16__CONFIG4 4 #define CP0_REG16__CONFIG5 5 #define CP0_REG16__CONFIG6 6 #define CP0_REG16__CONFIG7 7 /* CP0 Register 17 */ #define CP0_REG17__LLADDR 0 #define CP0_REG17__MAAR 1 #define CP0_REG17__MAARI 2 /* CP0 Register 18 */ #define CP0_REG18__WATCHLO0 0 #define CP0_REG18__WATCHLO1 1 #define CP0_REG18__WATCHLO2 2 #define CP0_REG18__WATCHLO3 3 #define CP0_REG18__WATCHLO4 4 #define CP0_REG18__WATCHLO5 5 #define CP0_REG18__WATCHLO6 6 #define CP0_REG18__WATCHLO7 7 /* CP0 Register 19 */ #define CP0_REG19__WATCHHI0 0 #define CP0_REG19__WATCHHI1 1 #define CP0_REG19__WATCHHI2 2 #define CP0_REG19__WATCHHI3 3 #define CP0_REG19__WATCHHI4 4 #define CP0_REG19__WATCHHI5 5 #define CP0_REG19__WATCHHI6 6 #define CP0_REG19__WATCHHI7 7 /* CP0 Register 20 */ #define CP0_REG20__XCONTEXT 0 /* CP0 Register 21 */ /* CP0 Register 22 */ /* CP0 Register 23 */ #define CP0_REG23__DEBUG 0 #define CP0_REG23__TRACECONTROL 1 #define CP0_REG23__TRACECONTROL2 2 #define CP0_REG23__USERTRACEDATA1 3 #define CP0_REG23__TRACEIBPC 4 #define CP0_REG23__TRACEDBPC 5 #define CP0_REG23__DEBUG2 6 /* CP0 Register 24 */ #define CP0_REG24__DEPC 0 /* CP0 Register 25 */ #define CP0_REG25__PERFCTL0 0 #define CP0_REG25__PERFCNT0 1 #define CP0_REG25__PERFCTL1 2 #define CP0_REG25__PERFCNT1 3 #define CP0_REG25__PERFCTL2 4 #define CP0_REG25__PERFCNT2 5 #define CP0_REG25__PERFCTL3 6 #define CP0_REG25__PERFCNT3 7 /* CP0 Register 26 */ #define CP0_REG26__ERRCTL 0 /* CP0 Register 27 */ #define CP0_REG27__CACHERR 0 /* CP0 Register 28 */ #define CP0_REG28__TAGLO 0 #define CP0_REG28__DATALO 1 #define CP0_REG28__TAGLO1 2 #define CP0_REG28__DATALO1 3 #define CP0_REG28__TAGLO2 4 #define CP0_REG28__DATALO2 5 #define CP0_REG28__TAGLO3 6 #define CP0_REG28__DATALO3 7 /* CP0 Register 29 */ #define CP0_REG29__TAGHI 0 #define CP0_REG29__DATAHI 1 #define CP0_REG29__TAGHI1 2 #define CP0_REG29__DATAHI1 3 #define CP0_REG29__TAGHI2 4 #define CP0_REG29__DATAHI2 5 #define CP0_REG29__TAGHI3 6 #define CP0_REG29__DATAHI3 7 /* CP0 Register 30 */ #define CP0_REG30__ERROREPC 0 /* CP0 Register 31 */ #define CP0_REG31__DESAVE 0 #define CP0_REG31__KSCRATCH1 2 #define CP0_REG31__KSCRATCH2 3 #define CP0_REG31__KSCRATCH3 4 #define CP0_REG31__KSCRATCH4 5 #define CP0_REG31__KSCRATCH5 6 #define CP0_REG31__KSCRATCH6 7 typedef struct TCState TCState; struct TCState { target_ulong gpr[32]; #ifdef TARGET_CHERI cap_register_t PCC; cap_register_t CapBranchTarget; /* Target of the next cjr/cjalr/ccall */ #else target_ulong PC; #endif #ifdef CONFIG_DEBUG_TCG target_ulong _pc_is_current; #endif target_ulong HI[MIPS_DSP_ACC]; target_ulong LO[MIPS_DSP_ACC]; target_ulong ACX[MIPS_DSP_ACC]; target_ulong DSPControl; #if defined(TARGET_CHERI) struct GPCapRegs gpcapregs; struct cheri_cap_hwregs CHWR; // #define CP2CAP_RCC 24 /* Return Code Capability */ #define CP2CAP_IDC 26 /* Invoked Data Capability */ // #define CP2CAP_EPCC_FAKE_OFFSET_VALUE 0xe9cce9cce9cce9cc /* cr_offset should not be used for EPCC */ #endif /* TARGET_CHERI */ int32_t CP0_TCStatus; #define CP0TCSt_TCU3 31 #define CP0TCSt_TCU2 30 #define CP0TCSt_TCU1 29 #define CP0TCSt_TCU0 28 #define CP0TCSt_TMX 27 #define CP0TCSt_RNST 23 #define CP0TCSt_TDS 21 #define CP0TCSt_DT 20 #define CP0TCSt_DA 15 #define CP0TCSt_A 13 #define CP0TCSt_TKSU 11 #define CP0TCSt_IXMT 10 #define CP0TCSt_TASID 0 int32_t CP0_TCBind; #define CP0TCBd_CurTC 21 #define CP0TCBd_TBE 17 #define CP0TCBd_CurVPE 0 target_ulong CP0_TCHalt; target_ulong CP0_TCContext; target_ulong CP0_TCSchedule; target_ulong CP0_TCScheFBack; int32_t CP0_Debug_tcstatus; target_ulong CP0_UserLocal; int32_t msacsr; #define MSACSR_FS 24 #define MSACSR_FS_MASK (1 << MSACSR_FS) #define MSACSR_NX 18 #define MSACSR_NX_MASK (1 << MSACSR_NX) #define MSACSR_CEF 2 #define MSACSR_CEF_MASK (0xffff << MSACSR_CEF) #define MSACSR_RM 0 #define MSACSR_RM_MASK (0x3 << MSACSR_RM) #define MSACSR_MASK (MSACSR_RM_MASK | MSACSR_CEF_MASK | MSACSR_NX_MASK | \ MSACSR_FS_MASK) float_status msa_fp_status; /* Upper 64-bit MMRs (multimedia registers); the lower 64-bit are GPRs */ uint64_t mmr[32]; #define NUMBER_OF_MXU_REGISTERS 16 target_ulong mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1]; target_ulong mxu_cr; #define MXU_CR_LC 31 #define MXU_CR_RC 30 #define MXU_CR_BIAS 2 #define MXU_CR_RD_EN 1 #define MXU_CR_MXU_EN 0 }; #if defined(TARGET_CHERI) #define CP2HWR_BASE_INDEX 0 // TODO: start at 32: #define CP2HWR_BASE_NUM 32 enum CP2HWR { CP2HWR_DDC = CP2HWR_BASE_INDEX + 0, /* Default Data Capability */ CP2HWR_USER_TLS = CP2HWR_BASE_INDEX + 1, /* Unprivileged TLS Cap */ CP2HWR_PRIV_TLS = CP2HWR_BASE_INDEX + 8, /* Privileged TLS Cap */ CP2HWR_K1RC = CP2HWR_BASE_INDEX + 22, /* Reserved Kernel Cap #1 */ CP2HWR_K2RC = CP2HWR_BASE_INDEX + 23, /* Reserved Kernel Cap #2 */ CP2HWR_ErrorEPCC = CP2HWR_BASE_INDEX + 28, /* Error Exception PC Capability */ CP2HWR_KCC = CP2HWR_BASE_INDEX + 29, /* Kernel Code Capability */ CP2HWR_KDC = CP2HWR_BASE_INDEX + 30, /* Kernel Data Capability */ CP2HWR_EPCC = CP2HWR_BASE_INDEX + 31, /* Exception PC Capability */ }; #endif struct MIPSITUState; typedef struct CPUMIPSState CPUMIPSState; struct CPUMIPSState { TCState active_tc; CPUMIPSFPUContext active_fpu; uint32_t current_tc; uint32_t current_fpu; uint32_t SEGBITS; uint32_t PABITS; #if defined(TARGET_MIPS64) # define PABITS_BASE 36 #else # define PABITS_BASE 32 #endif target_ulong SEGMask; uint64_t PAMask; #define PAMASK_BASE ((1ULL << PABITS_BASE) - 1) int32_t msair; #define MSAIR_ProcID 8 #define MSAIR_Rev 0 /* * CP0 Register 0 */ int32_t CP0_Index; /* CP0_MVP* are per MVP registers. */ int32_t CP0_VPControl; #define CP0VPCtl_DIS 0 /* * CP0 Register 1 */ int32_t CP0_Random; int32_t CP0_VPEControl; #define CP0VPECo_YSI 21 #define CP0VPECo_GSI 20 #define CP0VPECo_EXCPT 16 #define CP0VPECo_TE 15 #define CP0VPECo_TargTC 0 int32_t CP0_VPEConf0; #define CP0VPEC0_M 31 #define CP0VPEC0_XTC 21 #define CP0VPEC0_TCS 19 #define CP0VPEC0_SCS 18 #define CP0VPEC0_DSC 17 #define CP0VPEC0_ICS 16 #define CP0VPEC0_MVP 1 #define CP0VPEC0_VPA 0 int32_t CP0_VPEConf1; #define CP0VPEC1_NCX 20 #define CP0VPEC1_NCP2 10 #define CP0VPEC1_NCP1 0 target_ulong CP0_YQMask; target_ulong CP0_VPESchedule; target_ulong CP0_VPEScheFBack; int32_t CP0_VPEOpt; #define CP0VPEOpt_IWX7 15 #define CP0VPEOpt_IWX6 14 #define CP0VPEOpt_IWX5 13 #define CP0VPEOpt_IWX4 12 #define CP0VPEOpt_IWX3 11 #define CP0VPEOpt_IWX2 10 #define CP0VPEOpt_IWX1 9 #define CP0VPEOpt_IWX0 8 #define CP0VPEOpt_DWX7 7 #define CP0VPEOpt_DWX6 6 #define CP0VPEOpt_DWX5 5 #define CP0VPEOpt_DWX4 4 #define CP0VPEOpt_DWX3 3 #define CP0VPEOpt_DWX2 2 #define CP0VPEOpt_DWX1 1 #define CP0VPEOpt_DWX0 0 /* * CP0 Register 2 */ uint64_t CP0_EntryLo0; /* * CP0 Register 3 */ uint64_t CP0_EntryLo1; #if defined(TARGET_MIPS64) #if defined(TARGET_CHERI) # define CP0EnLo_S 63 # define CP0EnLo_L 62 # define CP0EnLo_CLG 61 #else # define CP0EnLo_RI 63 # define CP0EnLo_XI 62 #endif /* TARGET_CHERI */ #else # define CP0EnLo_RI 31 # define CP0EnLo_XI 30 #endif int32_t CP0_GlobalNumber; #define CP0GN_VPId 0 /* * CP0 Register 4 */ target_ulong CP0_Context; int32_t CP0_MemoryMapID; /* * CP0 Register 5 */ int32_t CP0_PageMask; int32_t CP0_PageGrain_rw_bitmask; int32_t CP0_PageGrain; #define CP0PG_RIE 31 #define CP0PG_XIE 30 #define CP0PG_ELPA 29 #define CP0PG_IEC 27 target_ulong CP0_SegCtl0; target_ulong CP0_SegCtl1; target_ulong CP0_SegCtl2; #define CP0SC_PA 9 #define CP0SC_PA_MASK (0x7FULL << CP0SC_PA) #define CP0SC_PA_1GMASK (0x7EULL << CP0SC_PA) #define CP0SC_AM 4 #define CP0SC_AM_MASK (0x7ULL << CP0SC_AM) #define CP0SC_AM_UK 0ULL #define CP0SC_AM_MK 1ULL #define CP0SC_AM_MSK 2ULL #define CP0SC_AM_MUSK 3ULL #define CP0SC_AM_MUSUK 4ULL #define CP0SC_AM_USK 5ULL #define CP0SC_AM_UUSK 7ULL #define CP0SC_EU 3 #define CP0SC_EU_MASK (1ULL << CP0SC_EU) #define CP0SC_C 0 #define CP0SC_C_MASK (0x7ULL << CP0SC_C) #define CP0SC_MASK (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \ CP0SC_PA_MASK) #define CP0SC_1GMASK (CP0SC_C_MASK | CP0SC_EU_MASK | CP0SC_AM_MASK | \ CP0SC_PA_1GMASK) #define CP0SC0_MASK (CP0SC_MASK | (CP0SC_MASK << 16)) #define CP0SC1_XAM 59 #define CP0SC1_XAM_MASK (0x7ULL << CP0SC1_XAM) #define CP0SC1_MASK (CP0SC_MASK | (CP0SC_MASK << 16) | CP0SC1_XAM_MASK) #define CP0SC2_XR 56 #define CP0SC2_XR_MASK (0xFFULL << CP0SC2_XR) #define CP0SC2_MASK (CP0SC_1GMASK | (CP0SC_1GMASK << 16) | CP0SC2_XR_MASK) target_ulong CP0_PWBase; target_ulong CP0_PWField; #if defined(TARGET_MIPS64) #define CP0PF_BDI 32 /* 37..32 */ #define CP0PF_GDI 24 /* 29..24 */ #define CP0PF_UDI 18 /* 23..18 */ #define CP0PF_MDI 12 /* 17..12 */ #define CP0PF_PTI 6 /* 11..6 */ #define CP0PF_PTEI 0 /* 5..0 */ #else #define CP0PF_GDW 24 /* 29..24 */ #define CP0PF_UDW 18 /* 23..18 */ #define CP0PF_MDW 12 /* 17..12 */ #define CP0PF_PTW 6 /* 11..6 */ #define CP0PF_PTEW 0 /* 5..0 */ #endif target_ulong CP0_PWSize; #if defined(TARGET_MIPS64) #define CP0PS_BDW 32 /* 37..32 */ #endif #define CP0PS_PS 30 #define CP0PS_GDW 24 /* 29..24 */ #define CP0PS_UDW 18 /* 23..18 */ #define CP0PS_MDW 12 /* 17..12 */ #define CP0PS_PTW 6 /* 11..6 */ #define CP0PS_PTEW 0 /* 5..0 */ /* * CP0 Register 6 */ int32_t CP0_Wired; int32_t CP0_PWCtl; #define CP0PC_PWEN 31 #if defined(TARGET_MIPS64) #define CP0PC_PWDIREXT 30 #define CP0PC_XK 28 #define CP0PC_XS 27 #define CP0PC_XU 26 #endif #define CP0PC_DPH 7 #define CP0PC_HUGEPG 6 #define CP0PC_PSN 0 /* 5..0 */ int32_t CP0_SRSConf0_rw_bitmask; int32_t CP0_SRSConf0; #define CP0SRSC0_M 31 #define CP0SRSC0_SRS3 20 #define CP0SRSC0_SRS2 10 #define CP0SRSC0_SRS1 0 int32_t CP0_SRSConf1_rw_bitmask; int32_t CP0_SRSConf1; #define CP0SRSC1_M 31 #define CP0SRSC1_SRS6 20 #define CP0SRSC1_SRS5 10 #define CP0SRSC1_SRS4 0 int32_t CP0_SRSConf2_rw_bitmask; int32_t CP0_SRSConf2; #define CP0SRSC2_M 31 #define CP0SRSC2_SRS9 20 #define CP0SRSC2_SRS8 10 #define CP0SRSC2_SRS7 0 int32_t CP0_SRSConf3_rw_bitmask; int32_t CP0_SRSConf3; #define CP0SRSC3_M 31 #define CP0SRSC3_SRS12 20 #define CP0SRSC3_SRS11 10 #define CP0SRSC3_SRS10 0 int32_t CP0_SRSConf4_rw_bitmask; int32_t CP0_SRSConf4; #define CP0SRSC4_SRS15 20 #define CP0SRSC4_SRS14 10 #define CP0SRSC4_SRS13 0 /* * CP0 Register 7 */ int32_t CP0_HWREna; /* * CP0 Register 8 */ target_ulong CP0_BadVAddr; uint32_t CP0_BadInstr; uint32_t CP0_BadInstrP; uint32_t CP0_BadInstrX; /* * CP0 Register 9 */ int32_t CP0_Count; uint32_t CP0_SAARI; #define CP0SAARI_TARGET 0 /* 5..0 */ uint64_t CP0_SAAR[2]; #define CP0SAAR_BASE 12 /* 43..12 */ #define CP0SAAR_SIZE 1 /* 5..1 */ #define CP0SAAR_EN 0 /* * CP0 Register 10 */ target_ulong CP0_EntryHi; #define CP0EnHi_EHINV 10 #if defined(TARGET_CHERI) #define CP0EnHi_CLGK 61 #define CP0EnHi_CLGS 60 #define CP0EnHi_CLGU 59 #endif target_ulong CP0_EntryHi_ASID_mask; /* * CP0 Register 11 */ int32_t CP0_Compare; /* * CP0 Register 12 */ int32_t CP0_Status; #define CP0St_CU3 31 #define CP0St_CU2 30 #define CP0St_CU1 29 #define CP0St_CU0 28 #define CP0St_RP 27 #define CP0St_FR 26 #define CP0St_RE 25 #define CP0St_MX 24 #define CP0St_PX 23 #define CP0St_BEV 22 #define CP0St_TS 21 #define CP0St_SR 20 #define CP0St_NMI 19 #define CP0St_IM 8 #define CP0St_KX 7 #define CP0St_SX 6 #define CP0St_UX 5 #define CP0St_KSU 3 #define CP0St_ERL 2 #define CP0St_EXL 1 #define CP0St_IE 0 int32_t CP0_IntCtl; #define CP0IntCtl_IPTI 29 #define CP0IntCtl_IPPCI 26 #define CP0IntCtl_VS 5 int32_t CP0_SRSCtl; #define CP0SRSCtl_HSS 26 #define CP0SRSCtl_EICSS 18 #define CP0SRSCtl_ESS 12 #define CP0SRSCtl_PSS 6 #define CP0SRSCtl_CSS 0 int32_t CP0_SRSMap; #define CP0SRSMap_SSV7 28 #define CP0SRSMap_SSV6 24 #define CP0SRSMap_SSV5 20 #define CP0SRSMap_SSV4 16 #define CP0SRSMap_SSV3 12 #define CP0SRSMap_SSV2 8 #define CP0SRSMap_SSV1 4 #define CP0SRSMap_SSV0 0 /* * CP0 Register 13 */ int32_t CP0_Cause; #define CP0Ca_BD 31 #define CP0Ca_TI 30 #define CP0Ca_CE 28 #define CP0Ca_DC 27 #define CP0Ca_PCI 26 #define CP0Ca_IV 23 #define CP0Ca_WP 22 #define CP0Ca_IP 8 #define CP0Ca_IP_mask 0x0000FF00 #define CP0Ca_EC 2 /* * CP0 Register 14 */ #if !defined(TARGET_CHERI) /* We use EPCC for TARGET_CHERI */ target_ulong CP0_EPC; #endif /* * CP0 Register 15 */ int32_t CP0_PRid; target_ulong CP0_EBase; target_ulong CP0_EBaseWG_rw_bitmask; #define CP0EBase_WG 11 target_ulong CP0_CMGCRBase; /* * CP0 Register 16 */ int32_t CP0_Config0; #define CP0C0_M 31 #define CP0C0_K23 28 /* 30..28 */ #define CP0C0_KU 25 /* 27..25 */ #define CP0C0_MDU 20 #define CP0C0_MM 18 #define CP0C0_BM 16 #define CP0C0_Impl 16 /* 24..16 */ #define CP0C0_BE 15 #define CP0C0_AT 13 /* 14..13 */ #define CP0C0_AR 10 /* 12..10 */ #define CP0C0_MT 7 /* 9..7 */ #define CP0C0_VI 3 #define CP0C0_K0 0 /* 2..0 */ int32_t CP0_Config1; #define CP0C1_M 31 #define CP0C1_MMU 25 /* 30..25 */ #define CP0C1_IS 22 /* 24..22 */ #define CP0C1_IL 19 /* 21..19 */ #define CP0C1_IA 16 /* 18..16 */ #define CP0C1_DS 13 /* 15..13 */ #define CP0C1_DL 10 /* 12..10 */ #define CP0C1_DA 7 /* 9..7 */ #define CP0C1_C2 6 #define CP0C1_MD 5 #define CP0C1_PC 4 #define CP0C1_WR 3 #define CP0C1_CA 2 #define CP0C1_EP 1 #define CP0C1_FP 0 int32_t CP0_Config2; #define CP0C2_M 31 #define CP0C2_TU 28 /* 30..28 */ #define CP0C2_TS 24 /* 27..24 */ #define CP0C2_TL 20 /* 23..20 */ #define CP0C2_TA 16 /* 19..16 */ #define CP0C2_SU 12 /* 15..12 */ #define CP0C2_SS 8 /* 11..8 */ #define CP0C2_SL 4 /* 7..4 */ #define CP0C2_SA 0 /* 3..0 */ int32_t CP0_Config3; #define CP0C3_M 31 #define CP0C3_BPG 30 #define CP0C3_CMGCR 29 #define CP0C3_MSAP 28 #define CP0C3_BP 27 #define CP0C3_BI 26 #define CP0C3_SC 25 #define CP0C3_PW 24 #define CP0C3_VZ 23 #define CP0C3_IPLV 21 /* 22..21 */ #define CP0C3_MMAR 18 /* 20..18 */ #define CP0C3_MCU 17 #define CP0C3_ISA_ON_EXC 16 #define CP0C3_ISA 14 /* 15..14 */ #define CP0C3_ULRI 13 #define CP0C3_RXI 12 #define CP0C3_DSP2P 11 #define CP0C3_DSPP 10 #define CP0C3_CTXTC 9 #define CP0C3_ITL 8 #define CP0C3_LPA 7 #define CP0C3_VEIC 6 #define CP0C3_VInt 5 #define CP0C3_SP 4 #define CP0C3_CDMM 3 #define CP0C3_MT 2 #define CP0C3_SM 1 #define CP0C3_TL 0 int32_t CP0_Config4; int32_t CP0_Config4_rw_bitmask; #define CP0C4_M 31 #define CP0C4_IE 29 /* 30..29 */ #define CP0C4_AE 28 #define CP0C4_VTLBSizeExt 24 /* 27..24 */ #define CP0C4_KScrExist 16 #define CP0C4_MMUExtDef 14 #define CP0C4_FTLBPageSize 8 /* 12..8 */ /* bit layout if MMUExtDef=1 */ #define CP0C4_MMUSizeExt 0 /* 7..0 */ /* bit layout if MMUExtDef=2 */ #define CP0C4_FTLBWays 4 /* 7..4 */ #define CP0C4_FTLBSets 0 /* 3..0 */ int32_t CP0_Config5; int32_t CP0_Config5_rw_bitmask; #define CP0C5_M 31 #define CP0C5_K 30 #define CP0C5_CV 29 #define CP0C5_EVA 28 #define CP0C5_MSAEn 27 #define CP0C5_PMJ 23 /* 25..23 */ #define CP0C5_WR2 22 #define CP0C5_NMS 21 #define CP0C5_ULS 20 #define CP0C5_XPA 19 #define CP0C5_CRCP 18 #define CP0C5_MI 17 #define CP0C5_GI 15 /* 16..15 */ #define CP0C5_CA2 14 #define CP0C5_XNP 13 #define CP0C5_DEC 11 #define CP0C5_L2C 10 #define CP0C5_UFE 9 #define CP0C5_FRE 8 #define CP0C5_VP 7 #define CP0C5_SBRI 6 #define CP0C5_MVH 5 #define CP0C5_LLB 4 #define CP0C5_MRP 3 #define CP0C5_UFR 2 #define CP0C5_NFExists 0 int32_t CP0_Config6; int32_t CP0_Config7; uint64_t CP0_LLAddr; uint64_t CP0_MAAR[MIPS_MAAR_MAX]; int32_t CP0_MAARI; /* XXX: Maybe make LLAddr per-TC? */ /* * CP0 Register 17 */ target_ulong lladdr; /* LL virtual address compared against SC */ target_ulong llval; uint64_t llval_wp; uint32_t llnewval_wp; #ifdef TARGET_CHERI uint64_t linkedflag; // TODO: remove this! #endif uint64_t CP0_LLAddr_rw_bitmask; int CP0_LLAddr_shift; /* * CP0 Register 18 */ target_ulong CP0_WatchLo[8]; /* * CP0 Register 19 */ uint64_t CP0_WatchHi[8]; #define CP0WH_ASID 16 /* * CP0 Register 20 */ target_ulong CP0_XContext; int32_t CP0_Framemask; /* * CP0 Register 23 */ int32_t CP0_Debug; #define CP0DB_DBD 31 #define CP0DB_DM 30 #define CP0DB_LSNM 28 #define CP0DB_Doze 27 #define CP0DB_Halt 26 #define CP0DB_CNT 25 #define CP0DB_IBEP 24 #define CP0DB_DBEP 21 #define CP0DB_IEXI 20 #define CP0DB_VER 15 #define CP0DB_DEC 10 #define CP0DB_SSt 8 #define CP0DB_DINT 5 #define CP0DB_DIB 4 #define CP0DB_DDBS 3 #define CP0DB_DDBL 2 #define CP0DB_DBp 1 #define CP0DB_DSS 0 /* * CP0 Register 24 */ target_ulong CP0_DEPC; /* * CP0 Register 25 */ int32_t CP0_Performance0; /* * CP0 Register 26 */ int32_t CP0_ErrCtl; #define CP0EC_WST 29 #define CP0EC_SPR 28 #define CP0EC_ITC 26 /* * CP0 Register 28 */ uint64_t CP0_TagLo; int32_t CP0_DataLo; /* * CP0 Register 29 */ int32_t CP0_TagHi; int32_t CP0_DataHi; /* * CP0 Register 30 */ #if !defined(TARGET_CHERI) /* We use ErrorEPCC for TARGET_CHERI */ target_ulong CP0_ErrorEPC; #endif /* * CP0 Register 31 */ int32_t CP0_DESAVE; target_ulong CP0_KScratch[MIPS_KSCRATCH_NUM]; /* We waste some space so we can handle shadow registers like TCs. */ TCState tcs[MIPS_SHADOW_SET_MAX]; CPUMIPSFPUContext fpus[MIPS_FPU_MAX]; /* QEMU */ int error_code; #define EXCP_TLB_NOMATCH 0x1 #define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */ uint32_t hflags; /* CPU State */ /* TMASK defines different execution modes */ #ifdef TARGET_CHERI #define MIPS_HFLAG_TMASK 0x3F5807FF #else #define MIPS_HFLAG_TMASK 0x1F5807FF #endif /* TARGET_CHERI */ #define MIPS_HFLAG_MODE 0x00007 /* execution modes */ /* * The KSU flags must be the lowest bits in hflags. The flag order * must be the same as defined for CP0 Status. This allows to use * the bits as the value of mmu_idx. */ #define MIPS_HFLAG_KSU 0x00003 /* kernel/supervisor/user mode mask */ #define MIPS_HFLAG_UM 0x00002 /* user mode flag */ #define MIPS_HFLAG_SM 0x00001 /* supervisor mode flag */ #define MIPS_HFLAG_KM 0x00000 /* kernel mode flag */ #define MIPS_HFLAG_DM 0x00004 /* Debug mode */ #define MIPS_HFLAG_64 0x00008 /* 64-bit instructions enabled */ #define MIPS_HFLAG_CP0 0x00010 /* CP0 enabled */ #define MIPS_HFLAG_FPU 0x00020 /* FPU enabled */ #define MIPS_HFLAG_F64 0x00040 /* 64-bit FPU enabled */ /* * True if the MIPS IV COP1X instructions can be used. This also * controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S * and RSQRT.D. */ #define MIPS_HFLAG_COP1X 0x00080 /* COP1X instructions enabled */ #define MIPS_HFLAG_RE 0x00100 /* Reversed endianness */ #define MIPS_HFLAG_AWRAP 0x00200 /* 32-bit compatibility address wrapping */ #define MIPS_HFLAG_M16 0x00400 /* MIPS16 mode flag */ #define MIPS_HFLAG_M16_SHIFT 10 /* * If translation is interrupted between the branch instruction and * the delay slot, record what type of branch it is so that we can * resume translation properly. It might be possible to reduce * this from three bits to two. */ #define MIPS_HFLAG_BMASK_BASE 0x803800 #define MIPS_HFLAG_B 0x00800 /* Unconditional branch */ #define MIPS_HFLAG_BC 0x01000 /* Conditional branch */ #define MIPS_HFLAG_BL 0x01800 /* Likely branch */ #define MIPS_HFLAG_BR 0x02000 /* branch to register (can't link TB) */ #ifdef TARGET_CHERI #define MIPS_HFLAG_BRC 0x02800 /* branch to register and load PCC */ #define MIPS_HFLAG_BRCCALL 0x03000 /* ccall load PCC and IDC */ #endif /* TARGET_CHERI */ /* Extra flags about the current pending branch. */ #define MIPS_HFLAG_BMASK_EXT 0x7C000 #define MIPS_HFLAG_B16 0x04000 /* branch instruction was 16 bits */ #define MIPS_HFLAG_BDS16 0x08000 /* branch requires 16-bit delay slot */ #define MIPS_HFLAG_BDS32 0x10000 /* branch requires 32-bit delay slot */ #define MIPS_HFLAG_BDS_STRICT 0x20000 /* Strict delay slot size */ #define MIPS_HFLAG_BX 0x40000 /* branch exchanges execution mode */ #define MIPS_HFLAG_BMASK (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT) /* MIPS DSP resources access. */ #define MIPS_HFLAG_DSP 0x080000 /* Enable access to DSP resources. */ #define MIPS_HFLAG_DSP_R2 0x100000 /* Enable access to DSP R2 resources. */ #define MIPS_HFLAG_DSP_R3 0x20000000 /* Enable access to DSP R3 resources. */ /* Extra flag about HWREna register. */ #define MIPS_HFLAG_HWRENA_ULR 0x200000 /* ULR bit from HWREna is set. */ #define MIPS_HFLAG_SBRI 0x400000 /* R6 SDBBP causes RI excpt. in user mode */ #define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot */ #define MIPS_HFLAG_MSA 0x1000000 #define MIPS_HFLAG_FRE 0x2000000 /* FRE enabled */ #define MIPS_HFLAG_ELPA 0x4000000 #define MIPS_HFLAG_ITC_CACHE 0x8000000 /* CACHE instr. operates on ITC tag */ #define MIPS_HFLAG_ERL 0x10000000 /* error level flag */ #ifdef TARGET_CHERI #define MIPS_HFLAG_COP2X 0x20000000 /* CHERI/CP2 enabled */ #endif /* TARGET_CHERI */ target_ulong btarget; /* Jump / branch target */ target_ulong bcond; /* Branch condition (if needed) */ int SYNCI_Step; /* Address step size for SYNCI */ int CCRes; /* Cycle count resolution/divisor */ uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */ uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */ uint64_t insn_flags; /* Supported instruction set */ int saarp; /* BERI Statcounters: */ uint64_t statcounters_icount_user; uint64_t statcounters_icount_kernel; /* The other ones are CHERI only for now */ #if defined(TARGET_CHERI) uint64_t statcounters_itlb_miss; uint64_t statcounters_dtlb_miss; uint64_t statcounters_cap_read; uint64_t statcounters_cap_read_tagged; uint64_t statcounters_cap_write; uint64_t statcounters_cap_write_tagged; uint64_t statcounters_imprecise_setbounds; uint64_t statcounters_unrepresentable_caps; /* TODO: we could implement the TLB ones as well */ /* * See section 3.9.2 (Table 3.3) of the CHERI Architecture Reference v7. */ uint16_t CP2_CapCause; /* Upper 8 bits exception code; lower reg# */ /* See cheri-archspecific.h */ #define MASK_CCALL_SEL(op) ((op) & 0x7ff) #define CCALL_SELECTOR_0 (0x0) #define CCALL_SELECTOR_1 (0x01) #define CCALL_SELECTOR_CRETURN (0x7ff) #endif /* TARGET_CHERI */ #ifdef CONFIG_MIPS_LOG_INSTR #define TRACE_MODE_USER "User mode" const char *last_mode; #define IN_USERSPACE(env) ((env->hflags & MIPS_HFLAG_UM) == MIPS_HFLAG_UM) #endif /* CONFIG_MIPS_LOG_INSTR */ /* Fields up to this point are cleared by a CPU reset */ struct {} end_reset_fields; /* Fields from here on are preserved across CPU reset. */ CPUMIPSMVPContext *mvp; #if !defined(CONFIG_USER_ONLY) CPUMIPSTLBContext *tlb; #endif const mips_def_t *cpu_model; void *irq[8]; QEMUTimer *timer; /* Internal timer */ struct MIPSITUState *itu; MemoryRegion *itc_tag; /* ITC Configuration Tags */ #ifdef CONFIG_MIPS_LOG_INSTR /* * Processor state after the last instruction. * Used for instruction tracing. */ target_ulong last_gpr[32]; target_ulong last_cop0[32*8]; #ifdef TARGET_CHERI cap_register_t last_C[32]; cap_register_t last_CapBranchTarget; struct cheri_cap_hwregs last_CHWR; #endif // TARGET_CHERI cvtrace_t cvtrace; #endif /* CONFIG_MIPS_LOG_INSTR */ target_ulong exception_base; /* ExceptionBase input to the core */ }; /** * MIPSCPU: * @env: #CPUMIPSState * * A MIPS CPU. */ struct MIPSCPU { /*< private >*/ CPUState parent_obj; /*< public >*/ CPUNegativeOffsetState neg; CPUMIPSState env; }; void mips_cpu_list(void); #define cpu_signal_handler cpu_mips_signal_handler #define cpu_list mips_cpu_list extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env); extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env); /* * MMU modes definitions. We carefully match the indices with our * hflags layout. */ #define MMU_USER_IDX 2 static inline int hflags_mmu_index(uint32_t hflags) { if (hflags & MIPS_HFLAG_ERL) { return 3; /* ERL */ } else { return hflags & MIPS_HFLAG_KSU; } } static inline int cpu_mmu_index(CPUMIPSState *env, bool ifetch) { return hflags_mmu_index(env->hflags); } typedef CPUMIPSState CPUArchState; typedef MIPSCPU ArchCPU; #include "exec/cpu-all.h" #include "cpu_cheri.h" /* * Memory access type : * may be needed for precise access rights control and precise exceptions. */ enum { /* 1 bit to define user level / supervisor access */ ACCESS_USER = 0x00, ACCESS_SUPER = 0x01, /* 1 bit to indicate direction */ ACCESS_STORE = 0x02, /* Type of instruction that generated the access */ ACCESS_CODE = 0x10, /* Code fetch access */ ACCESS_INT = 0x20, /* Integer load/store access */ ACCESS_FLOAT = 0x30, /* floating point load/store access */ }; /* Exceptions */ typedef enum { EXCP_NONE = -1, EXCP_RESET = 0, EXCP_SRESET, EXCP_DSS, EXCP_DINT, EXCP_DDBL, EXCP_DDBS, EXCP_NMI, EXCP_MCHECK, EXCP_EXT_INTERRUPT, /* 8 */ EXCP_DFWATCH, EXCP_DIB, EXCP_IWATCH, EXCP_AdEL, EXCP_AdES, EXCP_TLBF, EXCP_IBE, EXCP_DBp, /* 16 */ EXCP_SYSCALL, EXCP_BREAK, EXCP_CpU, EXCP_RI, EXCP_OVERFLOW, EXCP_TRAP, EXCP_FPE, EXCP_DWATCH, /* 24 */ EXCP_LTLBL, EXCP_TLBL, EXCP_TLBS, EXCP_DBE, EXCP_THREAD, EXCP_MDMX, EXCP_C2E, EXCP_CACHE, /* 32 */ EXCP_DSPDIS, EXCP_MSADIS, EXCP_MSAFPE, EXCP_TLBXI, EXCP_TLBRI, EXCP_LAST = EXCP_TLBRI, } MipsExcp; /* * This is an internally generated WAKE request line. * It is driven by the CPU itself. Raised when the MT * block wants to wake a VPE from an inactive state and * cleared when VPE goes from active to inactive. */ #define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc); #define MIPS_CPU_TYPE_SUFFIX "-" TYPE_MIPS_CPU #define MIPS_CPU_TYPE_NAME(model) model MIPS_CPU_TYPE_SUFFIX #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU bool cpu_supports_cps_smp(const char *cpu_type); bool cpu_supports_isa(const char *cpu_type, uint64_t isa); void cpu_set_exception_base(int vp_index, target_ulong address); /* mips_int.c */ void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level); /* mips_itu.c */ void itc_reconfigure(struct MIPSITUState *tag); /* helper.c */ target_ulong exception_resume_pc(CPUMIPSState *env); #ifdef CONFIG_MIPS_LOG_INSTR void dump_store(CPUMIPSState *env, int opc, target_ulong addr, target_ulong value); #ifdef TARGET_CHERI void dump_changed_capreg(CPUMIPSState *env, const cap_register_t *cr, cap_register_t *old_reg, const char* name); void dump_changed_cop2(CPUMIPSState *env, TCState *cur); #endif /* TARGET_CHERI */ #endif /* CONFIG_MIPS_LOG_INSTR */ static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc, target_ulong *cs_base, uint32_t *flags) { *pc = PC_ADDR(env); #ifdef TARGET_CHERI *cs_base = cap_get_base(&env->active_tc.PCC); #else *cs_base = 0; #endif *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK | MIPS_HFLAG_HWRENA_ULR); } static inline bool should_use_error_epc(CPUMIPSState *env) { // If ERL is set, eret and exceptions use ErrorEPC instead of EPC return env->CP0_Status & (1 << CP0St_ERL); } static inline bool in_kernel_mode(CPUMIPSState *env) { // TODO: what about env->CP0_Debug & (1 << CP0DB_DM) // If ERL or EXL is set we have taken an exception and are in the kernel if ((env->CP0_Status & BIT(CP0St_ERL)) || (env->CP0_Status & BIT(CP0St_EXL))) { return true; } uint32_t ksu = extract32(env->CP0_Status, CP0St_KSU, 2); // KSU = 0 -> kernel, 1 -> supervisor, 2 -> user if (ksu == 0 || ksu == 1) { return true; } return false; } #ifdef TARGET_CHERI #define is_beri_or_cheri(env) true #else #define is_beri_or_cheri(env) (strcmp(env->cpu_model->name, "BERI") == 0) #endif // Note: the pc does not have to be up-to-date, tb start is fine. // We may miss a few dumps or print too many if -dfilter is on but // that shouldn't really matter. static inline target_ulong cpu_get_recent_pc(CPUMIPSState *env) { #ifdef TARGET_CHERI return env->active_tc.PCC._cr_cursor; #else return env->active_tc.PC; #endif } static inline bool pc_is_current(CPUArchState *env) { #ifdef CONFIG_DEBUG_TCG return env->active_tc._pc_is_current; #else return true; #endif } static inline void mips_update_pc_impl(TCState *state, target_ulong pc_addr, bool can_be_unrepresenable) { #ifdef TARGET_CHERI cheri_update_pcc(&state->PCC, pc_addr, can_be_unrepresenable); #else state->PC = pc_addr; #endif #ifdef CONFIG_DEBUG_TCG state->_pc_is_current = true; #endif } static inline void mips_update_pc(CPUMIPSState *env, target_ulong pc_addr, bool can_be_unrepresenable) { mips_update_pc_impl(&env->active_tc, pc_addr, can_be_unrepresenable); } #if defined(TARGET_CHERI) void cheri_cpu_dump_statistics(CPUState *cs, int flags); void cheri_cpu_dump_statistics_f(CPUState *cs, FILE* f, int flags); void qemu_log_capreg(const cap_register_t *cr, const char* prefix, const char* name); hwaddr cpu_mips_translate_address_c2(CPUMIPSState *env, target_ulong address, MMUAccessType rw, int reg, int *prot, uintptr_t retpc); #endif /* TARGET_CHERI */ #endif /* MIPS_CPU_H */