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target/riscv: Drop priv level check in mseccfg predicate() 

riscv_csrrw_check() already does the generic privilege level check
hence there is no need to do the specific M-mode access check in
the mseccfg predicate().

With this change debugger can access the mseccfg CSR anytime.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-ID: <20230228104035.1879882-18-bmeng@tinylab.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Bin Meng 2023-02-28 21:45:34 +08:00 committed by Palmer Dabbelt
parent e4e1f216a1
commit 9e83a35661
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1 changed files with 1 additions and 1 deletions
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target/riscv/csr.c
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@ -451,7 +451,7 @@ static RISCVException pmp(CPURISCVState *env, int csrno)
static RISCVException epmp(CPURISCVState *env, int csrno)
{
if (env->priv == PRV_M && riscv_cpu_cfg(env)->epmp) {
if (riscv_cpu_cfg(env)->epmp) {
return RISCV_EXCP_NONE;
}