diff options
Diffstat (limited to 'machine')
| -rw-r--r-- | machine/emulation.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/machine/emulation.c b/machine/emulation.c index b86fa36..6a2b31a 100644 --- a/machine/emulation.c +++ b/machine/emulation.c @@ -160,18 +160,64 @@ static inline int emulate_read_csr(int num, uintptr_t mstatus, uintptr_t* result switch (num) { + case CSR_CYCLE: + if (!((counteren >> (CSR_CYCLE - CSR_CYCLE)) & 1)) + return -1; + *result = read_csr(mcycle); + return 0; case CSR_TIME: if (!((counteren >> (CSR_TIME - CSR_CYCLE)) & 1)) return -1; *result = *mtime; return 0; + case CSR_INSTRET: + if (!((counteren >> (CSR_INSTRET - CSR_CYCLE)) & 1)) + return -1; + *result = read_csr(minstret); + return 0; + case CSR_MHPMCOUNTER3: + if (!((counteren >> (3 + CSR_MHPMCOUNTER3 - CSR_MHPMCOUNTER3)) & 1)) + return -1; + *result = read_csr(mhpmcounter3); + return 0; + case CSR_MHPMCOUNTER4: + if (!((counteren >> (3 + CSR_MHPMCOUNTER4 - CSR_MHPMCOUNTER3)) & 1)) + return -1; + *result = read_csr(mhpmcounter4); + return 0; #if __riscv_xlen == 32 + case CSR_CYCLEH: + if (!((counteren >> (CSR_CYCLE - CSR_CYCLE)) & 1)) + return -1; + *result = read_csr(mcycleh); + return 0; case CSR_TIMEH: if (!((counteren >> (CSR_TIME - CSR_CYCLE)) & 1)) return -1; *result = *mtime >> 32; return 0; + case CSR_INSTRETH: + if (!((counteren >> (CSR_INSTRET - CSR_CYCLE)) & 1)) + return -1; + *result = read_csr(minstreth); + return 0; + case CSR_MHPMCOUNTER3H: + if (!((counteren >> (3 + CSR_HPMCOUNTER3 - CSR_MHPMCOUNTER3)) & 1)) + return -1; + *result = read_csr(mhpmcounter3h); + return 0; + case CSR_MHPMCOUNTER4H: + if (!((counteren >> (3 + CSR_HPMCOUNTER4 - CSR_MHPMCOUNTER3)) & 1)) + return -1; + *result = read_csr(mhpmcounter4h); + return 0; #endif + case CSR_MHPMEVENT3: + *result = read_csr(mhpmevent3); + return 0; + case CSR_MHPMEVENT4: + *result = read_csr(mhpmevent4); + return 0; #if !defined(__riscv_flen) && defined(PK_ENABLE_FP_EMULATION) case CSR_FRM: if ((mstatus & MSTATUS_FS) == 0) break; @@ -194,6 +240,18 @@ static inline int emulate_write_csr(int num, uintptr_t value, uintptr_t mstatus) { switch (num) { + case CSR_CYCLE: write_csr(mcycle, value); return 0; + case CSR_INSTRET: write_csr(minstret, value); return 0; + case CSR_MHPMCOUNTER3: write_csr(mhpmcounter3, value); return 0; + case CSR_MHPMCOUNTER4: write_csr(mhpmcounter4, value); return 0; +#if __riscv_xlen == 32 + case CSR_CYCLEH: write_csr(mcycleh, value); return 0; + case CSR_INSTRETH: write_csr(minstreth, value); return 0; + case CSR_MHPMCOUNTER3H: write_csr(mhpmcounter3h, value); return 0; + case CSR_MHPMCOUNTER4H: write_csr(mhpmcounter4h, value); return 0; +#endif + case CSR_MHPMEVENT3: write_csr(mhpmevent3, value); return 0; + case CSR_MHPMEVENT4: write_csr(mhpmevent4, value); return 0; #if !defined(__riscv_flen) && defined(PK_ENABLE_FP_EMULATION) case CSR_FRM: SET_FRM(value); return 0; case CSR_FFLAGS: SET_FFLAGS(value); return 0; |