linux-kernel - Re: [PATCH v2] x86/kexec: Add EFI config table identity mapping for kexec kernel

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Message-ID: <20230802135856.GBZMphIHHLa3dXRRVe@fat_crate.local>
Date:   Wed, 2 Aug 2023 15:58:56 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Tom Lendacky <thomas.lendacky@....com>
Cc:     Tao Liu <ltao@...hat.com>, Michael Roth <michael.roth@....com>,
        tglx@...utronix.de, mingo@...hat.com, dave.hansen@...ux.intel.com,
        x86@...nel.org, hpa@...or.com, ardb@...nel.org,
        linux-kernel@...r.kernel.org, bhe@...hat.com, dyoung@...hat.com,
        kexec@...ts.infradead.org, linux-efi@...r.kernel.org
Subject: Re: [PATCH v2] x86/kexec: Add EFI config table identity mapping for
 kexec kernel

On Wed, Aug 02, 2023 at 08:40:36AM -0500, Tom Lendacky wrote:
> Short of figuring out how to map page accesses earlier through the
> boot_page_fault IDT routine

And you want to do that because?

-- 
Regards/Gruss,
    Boris.

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