Re: [PATCH v7 01/22] x86/decompressor: Don't rely on upper 32 bits of GPRs being preserved

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To: Ard Biesheuvel <ardb@xxxxxxxxxx>
Subject: Re: [PATCH v7 01/22] x86/decompressor: Don't rely on upper 32 bits of GPRs being preserved
From: Borislav Petkov <bp@xxxxxxxxx>
Date: Mon, 31 Jul 2023 13:01:29 +0200
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, linux-efi@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Evgeniy Baskov <baskov@xxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Alexey Khoroshilov <khoroshilov@xxxxxxxxx>, Peter Jones <pjones@xxxxxxxxxx>, Gerd Hoffmann <kraxel@xxxxxxxxxx>, Dave Young <dyoung@xxxxxxxxxx>, Mario Limonciello <mario.limonciello@xxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Tom Lendacky <thomas.lendacky@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Joerg Roedel <jroedel@xxxxxxx>
In-reply-to: <CAMj1kXHOsAHPMSSAdGKR22-uN-jki7y5TcQOJ4GLue1z1kbtuw@mail.gmail.com>
References: <20230728090916.1538550-1-ardb@kernel.org> <20230728090916.1538550-2-ardb@kernel.org> <20230731100713.GAZMeH0RvXfNclFqMO@fat_crate.local> <CAMj1kXHOsAHPMSSAdGKR22-uN-jki7y5TcQOJ4GLue1z1kbtuw@mail.gmail.com>

On Mon, Jul 31, 2023 at 12:09:04PM +0200, Ard Biesheuvel wrote:
> This is already fixed further down in the series.

Thanks, lemme look.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

References:
- [PATCH v7 00/22] efi/x86: Avoid bare metal decompressor during EFI boot
  - From: Ard Biesheuvel
- [PATCH v7 01/22] x86/decompressor: Don't rely on upper 32 bits of GPRs being preserved
  - From: Ard Biesheuvel
- Re: [PATCH v7 01/22] x86/decompressor: Don't rely on upper 32 bits of GPRs being preserved
  - From: Borislav Petkov
- Re: [PATCH v7 01/22] x86/decompressor: Don't rely on upper 32 bits of GPRs being preserved
  - From: Ard Biesheuvel

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