diff options
Diffstat (limited to 'target/riscv/csr.c')
| -rw-r--r-- | target/riscv/csr.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 49566d3c08..7948188356 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -192,6 +192,11 @@ static RISCVException cfi_ss(CPURISCVState *env, int csrno) return RISCV_EXCP_ILLEGAL_INST; } + /* If ext implemented, M-mode always have access to SSP CSR */ + if (env->priv == PRV_M) { + return RISCV_EXCP_NONE; + } + /* if bcfi not active for current env, access to csr is illegal */ if (!cpu_get_bcfien(env)) { #if !defined(CONFIG_USER_ONLY) @@ -4297,7 +4302,7 @@ static RISCVException rmw_sctrdepth(CPURISCVState *env, int csrno, } /* Update sctrstatus.WRPTR with a legal value */ - depth = 16 << depth; + depth = 16ULL << depth; env->sctrstatus = env->sctrstatus & (~SCTRSTATUS_WRPTR_MASK | (depth - 1)); } |