From: David Woodhouse <dwmw2@infradead.org>
To: Kees Cook <keescook@chromium.org>,
Daniel Vetter <daniel.vetter@intel.com>
Cc: iommu@lists.linux-foundation.org,
Jani Nikula <jani.nikula@linux.intel.com>,
intel-gfx@lists.freedesktop.org, Joerg Roedel <joro@8bytes.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iommu/intel: disable DMAR for Q35 integrated gfx
Date: Mon, 05 Dec 2016 22:07:15 +0000 [thread overview]
Message-ID: <1480975635.81411.4.camel@infradead.org> (raw)
In-Reply-To: <20161205215841.GA20819@beast>
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On Mon, 2016-12-05 at 13:58 -0800, Kees Cook wrote:
> This blacklists the Q35 integrated graphics so IOMMU can be otherwise
> enabled. Without this, a Q35 system can only enable IOMMU when booting
> with "intel_iommu=on,igfx_off" but not "intel_iommu=on".
Hm, is this definitely the same bug? Or is it something different, and
perhaps a BIOS issue? There are many of those...
--
dwmw2
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next prev parent reply other threads:[~2016-12-05 22:07 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 [this message]
2016-12-05 22:18 ` Kees Cook
2016-12-05 22:47 ` David Woodhouse
2016-12-05 23:16 ` Kees Cook
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