[RFC 1/2] efi/memattr: Use desc_size instead of total size to check for corruption
Ard Biesheuvel
ardb at kernel.org
Mon Jan 20 03:29:43 PST 2025
On Mon, 20 Jan 2025 at 11:50, Usama Arif <usamaarif642 at gmail.com> wrote:
>
>
>
> On 20/01/2025 10:32, Ard Biesheuvel wrote:
> > On Mon, 20 Jan 2025 at 11:27, Usama Arif <usamaarif642 at gmail.com> wrote:
> >>
> >>
> > ...
> >> Hi Ard,
> >>
> >> Just wanted to check how should we proceed forward? Should we try and fix the warning
> >> and corruption during kexec as done in this series or not initialize memory attributes
> >> table at all in kexec boot? I would prefer fixing the issues as in this series.
> >>
> >
> > I would prefer kexec boot on x86 to disregard the memory attributes
> > table entirely.
>
> Would you like Dave to send something like
> https://lore.kernel.org/all/CALu+AoS8tb=HgaybDw5OG4A1QbOXHvuidpu0ynmz-nE1nBqzTA@mail.gmail.com/
> on the mailing list (wrapped in ifdef CONFIG_X86_64)
>
I prefer this approach. and no need for the ifdef, this is x86
specific code, and the memory attributes table is already ignored
entirely on 32-bit x86 iirc
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