From: Richard Henderson <richard.henderson@linaro.org>
To: Nikita Shubin <nikita.shubin@maquefel.me>
Cc: qemu-riscv@nongnu.org, Nikita Shubin <n.shubin@yadro.com>,
Bin Meng <bin.meng@windriver.com>,
qemu-devel@nongnu.org,
Alistair Francis <alistair.francis@wdc.com>,
atishp@atishpatra.org, Palmer Dabbelt <palmer@dabbelt.com>
Subject: Re: [PATCH] target/riscv/pmp: fix no pmp illegal intrs
Date: Tue, 14 Dec 2021 13:13:57 -0800 [thread overview]
Message-ID: <b165ef0f-3336-f4e5-61ee-b3d8cf9e02c0@linaro.org> (raw)
In-Reply-To: <6a13ed88-e109-93e4-9254-62b6b04f5913@linaro.org>
On 12/14/21 1:12 PM, Richard Henderson wrote:
> On 12/14/21 1:26 AM, Nikita Shubin wrote:
>> - if (!pmp_get_num_rules(env) && (prev_priv != PRV_M)) {
>> + if (riscv_feature(env, RISCV_FEATURE_PMP) &&
>> + !pmp_get_num_rules(env) && (prev_priv != PRV_M)) {
>
> When would the number of rules become non-zero with PMP disabled?
> When does this test make a difference?
Oh, nevermind, I see what you mean.
r~
next prev parent reply other threads:[~2021-12-14 21:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-14 9:26 [PATCH] target/riscv/pmp: fix no pmp illegal intrs Nikita Shubin
2021-12-14 21:12 ` Richard Henderson
2021-12-14 21:13 ` Richard Henderson [this message]
2021-12-15 7:57 ` Nikita Shubin
2021-12-21 6:34 ` Alistair Francis
2021-12-21 7:13 ` Nikita Shubin
2021-12-22 22:15 ` Alistair Francis
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