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Re: [PATCH v3 3/3] target/riscv: Legalize MPP value in write_mstatus


From: Richard Henderson
Subject: Re: [PATCH v3 3/3] target/riscv: Legalize MPP value in write_mstatus
Date: Fri, 7 Apr 2023 09:32:37 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0

On 4/6/23 18:47, Weiwei Li wrote:
mstatus.MPP field is a WARL field since priv version 1.11, so we
remain it unchanged if an invalid value is written into it. And
after this, RVH shouldn't be passed to riscv_cpu_set_mode().

Signed-off-by: Weiwei Li<liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang<wangjunqiang@iscas.ac.cn>
---
  target/riscv/cpu_helper.c |  8 ++------
  target/riscv/csr.c        | 32 ++++++++++++++++++++++++++++++++
  2 files changed, 34 insertions(+), 6 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~



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