linux-kernel - Re: [PATCH v5 06/20] x86/decompressor: Store boot

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Message-ID: <20230711075733.GFZK0LbaVA/cHUbChN@fat_crate.local>
Date:   Tue, 11 Jul 2023 09:57:33 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Evgeniy Baskov <baskov@...ras.ru>,
        Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Alexey Khoroshilov <khoroshilov@...ras.ru>,
        Peter Jones <pjones@...hat.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Dave Young <dyoung@...hat.com>,
        Mario Limonciello <mario.limonciello@....com>,
        Kees Cook <keescook@...omium.org>,
        Tom Lendacky <thomas.lendacky@....com>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Joerg Roedel <jroedel@...e.de>
Subject: Re: [PATCH v5 06/20] x86/decompressor: Store boot_params pointer in
 callee save register

On Mon, Jul 10, 2023 at 11:55:49PM +0200, Ard Biesheuvel wrote:
> I already did, actually, but I dropped it from this series because it
> was getting too long, and not essential for the overall goal of the
> changes.

Yeah, might wanna add it, though, for the simple reason that
compressed/head_64.S and kernel/head_64.S will otherwise differ in the
%rsi handling unnecessarily and people might wonder why.

Thx.

-- 
Regards/Gruss,
    Boris.

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