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target/riscv: Remove redundant assignment to SXL

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SXL is initialized as env->misa_mxl which is also the mxl value.
So we can just remain it unchanged to keep it read-only.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230603134236.15719-4-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Weiwei Li 2023-06-03 21:42:36 +08:00 committed by Alistair Francis
parent 03dd405dd5
commit 98fbdaaed5
1 changed files with 0 additions and 4 deletions
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4
target/riscv/csr.c
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@ -1321,10 +1321,6 @@ static RISCVException write_mstatus(CPURISCVState *env, int csrno,
mstatus = (mstatus & ~mask) | (val & mask);
if (xl > MXL_RV32) {
/* SXL field is for now read only */
mstatus = set_field(mstatus, MSTATUS64_SXL, xl);
}
env->mstatus = mstatus;
/*