linux-kernel - Re: [PATCH v6 1/7] mseal, system mappings: kernel config and header change

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Message-ID: <CABi2SkXew-7bDD5c6ZDhbM3kRQPMTXrq=1cXX1rUvy1Yb+XvAQ@mail.gmail.com>
Date: Mon, 24 Feb 2025 11:39:58 -0800
From: Jeff Xu <jeffxu@...omium.org>
To: "Liam R. Howlett" <Liam.Howlett@...cle.com>, Jeff Xu <jeffxu@...omium.org>, 
	Dave Hansen <dave.hansen@...el.com>, akpm@...ux-foundation.org, keescook@...omium.org, 
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Subject: Re: [PATCH v6 1/7] mseal, system mappings: kernel config and header change

On Mon, Feb 24, 2025 at 11:18 AM Liam R. Howlett
<Liam.Howlett@...cle.com> wrote:
>
> Also, do we need something like the above test for VM_SEALED_SYS?
>
Do you mean adding selftest for sealing vdso ? or test the
VM_SEALED_SYS macro in 32 bit vs 64 bits ?

CONFIG_MSEAL_SYSTEM_MAPPINGS is by default disabled. I'm not sure
about the common practice here.

I also don't know how to detect CONFIG_MSEAL_SYSTEM_MAPPINGS from
selftest, that is needed for the selftest.

-Jeff


> Thanks,
> Liam
>