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Message-ID: <28d68897-14e4-4dd2-941f-2352d1313fa7@sifive.com>
Date:   Tue, 21 Nov 2023 15:34:41 -0600
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Subject: Re: [PATCH] riscv: mm: implement pgprot_nx
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To:     Jisheng Zhang <jszhang@kernel.org>
Cc:     linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>
References: <20231121160637.3856-1-jszhang@kernel.org>
From:   Samuel Holland <samuel.holland@sifive.com>
In-Reply-To: <20231121160637.3856-1-jszhang@kernel.org>
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On 2023-11-21 10:06 AM, Jisheng Zhang wrote:
> commit cca98e9f8b5e ("mm: enforce that vmap can't map pages
> executable") enforces the W^X protection by not allowing remapping
> existing pages as executable. Add riscv bits so that riscv can benefit
> the same protection.
> 
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> ---
>  arch/riscv/include/asm/pgtable.h | 6 ++++++
>  1 file changed, 6 insertions(+)

Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Tested-by: Samuel Holland <samuel.holland@sifive.com>