Re: [PATCH v8 00/23] efi/x86: Avoid bare metal decompressor during EFI boot

Ard Biesheuvel
2023-08-05T22:20:07Z

On Sat, 5 Aug 2023 at 23:07, Borislav Petkov <bp@alien8.de> wrote:
>
> On Sat, Aug 05, 2023 at 07:37:17PM +0200, Ard Biesheuvel wrote:
> > So this is the host booting, right?
>
> Yes.
>
> > So is the position of the C bit perhaps getting detect incorrectly?
>
> I don't know yet. But the evildoer is someone else:
>
> 02d47ce2ae02 ("x86/head_64: Store boot_params pointer in callee save register")
>
> after bisection. More staring later as to why...
>

How bizarre.

But that was a bonus patch anyway, so we could just drop it for now.