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Date:   Wed, 6 Jul 2022 01:12:33 +0100
From:   Matthew Garrett <mjg59@srcf.ucam.org>
To:     Brendan Trotter <btrotter@gmail.com>
Cc:     The development of GNU GRUB <grub-devel@gnu.org>,
        Ard Biesheuvel <ardb@kernel.org>,
        Daniel Kiper <daniel.kiper@oracle.com>,
        Alec Brown <alec.r.brown@oracle.com>,
        Kanth Ghatraju <kanth.ghatraju@oracle.com>,
        Ross Philipson <ross.philipson@oracle.com>,
        "piotr.krol@3mdeb.com" <piotr.krol@3mdeb.com>,
        "krystian.hebel@3mdeb.com" <krystian.hebel@3mdeb.com>,
        "persaur@gmail.com" <persaur@gmail.com>,
        "Yoder, Stuart" <stuart.yoder@arm.com>,
        Andrew Cooper <andrew.cooper3@citrix.com>,
        "michal.zygowski@3mdeb.com" <michal.zygowski@3mdeb.com>,
        James Bottomley <James.Bottomley@hansenpartnership.com>,
        "lukasz@hawrylko.pl" <lukasz@hawrylko.pl>,
        linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org,
        James Morris <jmorris@namei.org>
Subject: Re: Linux DRTM on UEFI platforms
Message-ID: <20220706001233.GA5802@srcf.ucam.org>
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On Wed, Jul 06, 2022 at 09:33:23AM +0930, Brendan Trotter wrote:

> The only correct approach is "efi-stub -> head_64.S -> kernel's own
> secure init"; where (on UEFI systems) neither GRUB nor Trenchboot has
> a valid reason to exist and should never be installed.

Surely the entire point of DRTM is that we *don't* have to trust the 
bootloader?