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Date:   Thu, 05 Apr 2018 18:03:37 +0000
From:   Matthew Garrett <>
To:     Alan Cox <>
Cc:     Linus Torvalds <>,,
        David Howells <>,
        Ard Biesheuvel <>,,
        Greg Kroah-Hartman <>,
        Linux Kernel Mailing List <>,,,,
        LSM List <>,, Kees Cook <>,
        linux-efi <>
Subject: Re: [GIT PULL] Kernel lockdown for secure boot

On Thu, Apr 5, 2018 at 10:59 AM Alan Cox <> 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.

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