linux-kernel - Re: [GIT PULL] Kernel lockdown for secure boot

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Message-ID: <CACdnJuuXexHPCkK5GW-XH2bjjXiRRg+9TFWfzeZt63-q4=Je0w@mail.gmail.com>
Date:   Thu, 05 Apr 2018 18:03:37 +0000
From:   Matthew Garrett <mjg59@...gle.com>
To:     Alan Cox <gnomes@...rguk.ukuu.org.uk>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>, luto@...nel.org,
        David Howells <dhowells@...hat.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>, jmorris@...ei.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        jforbes@...hat.com, linux-man@...r.kernel.org, jlee@...e.com,
        LSM List <linux-security-module@...r.kernel.org>,
        linux-api@...r.kernel.org, Kees Cook <keescook@...omium.org>,
        linux-efi <linux-efi@...r.kernel.org>
Subject: Re: [GIT PULL] Kernel lockdown for secure boot

On Thu, Apr 5, 2018 at 10:59 AM Alan Cox <gnomes@...rguk.ukuu.org.uk> wrote:
> VT-D

Once Intel provide that on all hardware and actually make it work reliably
with their graphics chipsets it's certainly a solution for the PCI DMA
problem, but right now it's still effectively undeployable for a lot of
real world cases.