From: David Woodhouse <dwmw2@infradead.org>
To: Kees Cook <keescook@chromium.org>
Cc: Daniel Vetter <daniel.vetter@intel.com>,
iommu@lists.linux-foundation.org,
Jani Nikula <jani.nikula@linux.intel.com>,
intel-gfx@lists.freedesktop.org, Joerg Roedel <joro@8bytes.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] iommu/intel: disable DMAR for Q35 integrated gfx
Date: Mon, 05 Dec 2016 22:47:32 +0000 [thread overview]
Message-ID: <1480978052.28987.58.camel@infradead.org> (raw)
In-Reply-To: <CAGXu5j+QJZk9PghXdo=3Rp-noshG-GeSKxn+nuicqpRgFiiR5w@mail.gmail.com>
On Mon, 2016-12-05 at 14:18 -0800, Kees Cook wrote:
> Hm, I have no idea. :) What would I look for in the BIOS?
For a start, what is the actual failure mode?
> I figured since g4 was busted, surely q35 was too, since it's even
> older...
Oh no, they all have different failures. Intel never actually *tested*
their graphics hardware before shipping it, but IIRC it was only Q4x
where we concluded the hardware was just too broken to live.
next prev parent reply other threads:[~2016-12-05 22:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-05 21:58 Kees Cook
2016-12-05 22:07 ` David Woodhouse
2016-12-05 22:18 ` Kees Cook
2016-12-05 22:47 ` David Woodhouse [this message]
2016-12-05 23:16 ` Kees Cook
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