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target/riscv: Update cur_pmmask/base when xl changes 

write_mstatus() can only change current xl when in debug mode.
And we need update cur_pmmask/base in this case.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-Id: <20230524015933.17349-3-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Weiwei Li 2023-05-24 09:59:33 +08:00 committed by Alistair Francis
parent 7b945bdc0b
commit 30a0d77622
1 changed files with 8 additions and 1 deletions
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9
target/riscv/csr.c
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@ -1324,8 +1324,15 @@ static RISCVException write_mstatus(CPURISCVState *env, int csrno,
mstatus = set_field(mstatus, MSTATUS64_SXL, xl);
}
env->mstatus = mstatus;
env->xl = cpu_recompute_xl(env);
/*
* Except in debug mode, UXL/SXL can only be modified by higher
* privilege mode. So xl will not be changed in normal mode.
*/
if (env->debugger) {
env->xl = cpu_recompute_xl(env);
riscv_cpu_update_mask(env);
}
return RISCV_EXCP_NONE;
}