diff options
Diffstat (limited to 'target/riscv/op_helper.c')
| -rw-r--r-- | target/riscv/op_helper.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c index 81bd1a77ea..77c79ba36e 100644 --- a/target/riscv/op_helper.c +++ b/target/riscv/op_helper.c @@ -82,6 +82,11 @@ target_ulong helper_sret(CPURISCVState *env, target_ulong cpu_pc_deb) do_raise_exception_err(env, RISCV_EXCP_INST_ADDR_MIS, GETPC()); } + if (env->priv_ver >= PRIV_VERSION_1_10_0 && + get_field(env->mstatus, MSTATUS_TSR)) { + do_raise_exception_err(env, RISCV_EXCP_ILLEGAL_INST, GETPC()); + } + target_ulong mstatus = env->mstatus; target_ulong prev_priv = get_field(mstatus, MSTATUS_SPP); mstatus = set_field(mstatus, @@ -125,16 +130,28 @@ void helper_wfi(CPURISCVState *env) { CPUState *cs = CPU(riscv_env_get_cpu(env)); - cs->halted = 1; - cs->exception_index = EXCP_HLT; - cpu_loop_exit(cs); + if (env->priv == PRV_S && + env->priv_ver >= PRIV_VERSION_1_10_0 && + get_field(env->mstatus, MSTATUS_TW)) { + do_raise_exception_err(env, RISCV_EXCP_ILLEGAL_INST, GETPC()); + } else { + cs->halted = 1; + cs->exception_index = EXCP_HLT; + cpu_loop_exit(cs); + } } void helper_tlb_flush(CPURISCVState *env) { RISCVCPU *cpu = riscv_env_get_cpu(env); CPUState *cs = CPU(cpu); - tlb_flush(cs); + if (env->priv == PRV_S && + env->priv_ver >= PRIV_VERSION_1_10_0 && + get_field(env->mstatus, MSTATUS_TVM)) { + do_raise_exception_err(env, RISCV_EXCP_ILLEGAL_INST, GETPC()); + } else { + tlb_flush(cs); + } } #endif /* !CONFIG_USER_ONLY */ |