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Subject: Re: [PATCH] intel-iommu: Work around yet another BIOS bug
From: David Woodhouse <dwmw2@infradead.org>
To: Ray Lee <ray-lk@madrabbit.org>
Cc: torvalds@linux-foundation.org, Andrew Morton <akpm@linux-foundation.org>,
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Date: Thu, 20 Aug 2009 20:32:20 +0100
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On Thu, 2009-08-20 at 12:29 -0700, Ray Lee wrote:
> Think about changing this to a warning that "Your IOMMU appears to be
> disabled." All ones is, after all, the traditional hint that the
> device is turned off.

Hints are all very well, but the BIOS provided an ACPI table explicitly
telling us that there was an active IOMMU at this location.

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@intel.com                              Intel Corporation