diff options
| -rw-r--r-- | target/riscv/cpu.h | 6 | ||||
| -rw-r--r-- | target/riscv/op_helper.c | 62 |
2 files changed, 50 insertions, 18 deletions
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 1dcbdbe6f7..34abc383e3 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -151,10 +151,8 @@ struct CPURISCVState { target_ulong mcause; target_ulong mtval; /* since: priv-1.10.0 */ - uint32_t mucounteren; - uint32_t mscounteren; - target_ulong scounteren; /* since: priv-1.10.0 */ - target_ulong mcounteren; /* since: priv-1.10.0 */ + target_ulong scounteren; + target_ulong mcounteren; target_ulong sscratch; target_ulong mscratch; diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c index f45ac7306c..7416412b18 100644 --- a/target/riscv/op_helper.c +++ b/target/riscv/op_helper.c @@ -225,11 +225,19 @@ void csr_write_helper(CPURISCVState *env, target_ulong val_to_write, qemu_log_mask(LOG_UNIMP, "CSR_MCYCLEH: write not implemented"); goto do_illegal; case CSR_MUCOUNTEREN: - env->mucounteren = val_to_write; - break; + if (env->priv_ver <= PRIV_VERSION_1_09_1) { + env->scounteren = val_to_write; + break; + } else { + goto do_illegal; + } case CSR_MSCOUNTEREN: - env->mscounteren = val_to_write; - break; + if (env->priv_ver <= PRIV_VERSION_1_09_1) { + env->mcounteren = val_to_write; + break; + } else { + goto do_illegal; + } case CSR_SSTATUS: { target_ulong ms = env->mstatus; target_ulong mask = SSTATUS_SIE | SSTATUS_SPIE | SSTATUS_UIE @@ -286,8 +294,12 @@ void csr_write_helper(CPURISCVState *env, target_ulong val_to_write, env->stvec = val_to_write >> 2 << 2; break; case CSR_SCOUNTEREN: - env->scounteren = val_to_write; - break; + if (env->priv_ver >= PRIV_VERSION_1_10_0) { + env->scounteren = val_to_write; + break; + } else { + goto do_illegal; + } case CSR_SSCRATCH: env->sscratch = val_to_write; break; @@ -308,8 +320,12 @@ void csr_write_helper(CPURISCVState *env, target_ulong val_to_write, env->mtvec = val_to_write >> 2 << 2; break; case CSR_MCOUNTEREN: - env->mcounteren = val_to_write; - break; + if (env->priv_ver >= PRIV_VERSION_1_10_0) { + env->mcounteren = val_to_write; + break; + } else { + goto do_illegal; + } case CSR_MSCRATCH: env->mscratch = val_to_write; break; @@ -347,6 +363,8 @@ void csr_write_helper(CPURISCVState *env, target_ulong val_to_write, case CSR_PMPADDR15: pmpaddr_csr_write(env, csrno - CSR_PMPADDR0, val_to_write); break; +#endif +#if !defined(CONFIG_USER_ONLY) do_illegal: #endif default: @@ -362,8 +380,8 @@ void csr_write_helper(CPURISCVState *env, target_ulong val_to_write, target_ulong csr_read_helper(CPURISCVState *env, target_ulong csrno) { #ifndef CONFIG_USER_ONLY - target_ulong ctr_en = env->priv == PRV_U ? env->mucounteren : - env->priv == PRV_S ? env->mscounteren : -1U; + target_ulong ctr_en = env->priv == PRV_U ? env->scounteren : + env->priv == PRV_S ? env->mcounteren : -1U; #else target_ulong ctr_en = -1; #endif @@ -438,9 +456,17 @@ target_ulong csr_read_helper(CPURISCVState *env, target_ulong csrno) #endif break; case CSR_MUCOUNTEREN: - return env->mucounteren; + if (env->priv_ver <= PRIV_VERSION_1_09_1) { + return env->scounteren; + } else { + break; /* illegal instruction */ + } case CSR_MSCOUNTEREN: - return env->mscounteren; + if (env->priv_ver <= PRIV_VERSION_1_09_1) { + return env->mcounteren; + } else { + break; /* illegal instruction */ + } case CSR_SSTATUS: { target_ulong mask = SSTATUS_SIE | SSTATUS_SPIE | SSTATUS_UIE | SSTATUS_UPIE | SSTATUS_SPP | SSTATUS_FS | SSTATUS_XS @@ -465,7 +491,11 @@ target_ulong csr_read_helper(CPURISCVState *env, target_ulong csrno) case CSR_STVEC: return env->stvec; case CSR_SCOUNTEREN: - return env->scounteren; + if (env->priv_ver >= PRIV_VERSION_1_10_0) { + return env->scounteren; + } else { + break; /* illegal instruction */ + } case CSR_SCAUSE: return env->scause; case CSR_SATP: /* CSR_SPTBR */ @@ -510,7 +540,11 @@ target_ulong csr_read_helper(CPURISCVState *env, target_ulong csrno) case CSR_MTVEC: return env->mtvec; case CSR_MCOUNTEREN: - return env->mcounteren; + if (env->priv_ver >= PRIV_VERSION_1_10_0) { + return env->mcounteren; + } else { + break; /* illegal instruction */ + } case CSR_MEDELEG: return env->medeleg; case CSR_MIDELEG: |