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From:   Matthew Garrett <mjg59@google.com>
Date:   Thu, 05 Apr 2018 18:03:37 +0000
Message-ID: <CACdnJuuXexHPCkK5GW-XH2bjjXiRRg+9TFWfzeZt63-q4=Je0w@mail.gmail.com>
Subject: Re: [GIT PULL] Kernel lockdown for secure boot
To:     Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>, luto@kernel.org,
        David Howells <dhowells@redhat.com>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>, jmorris@namei.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        jforbes@redhat.com, linux-man@vger.kernel.org, jlee@suse.com,
        LSM List <linux-security-module@vger.kernel.org>,
        linux-api@vger.kernel.org, Kees Cook <keescook@chromium.org>,
        linux-efi <linux-efi@vger.kernel.org>
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On Thu, Apr 5, 2018 at 10:59 AM Alan Cox <gnomes@lxorguk.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.