linux-kernel - Re: [PATCH 0/7] Intel pci: Fix various problems with Intel IOMMU code

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Date:	Sun, 29 May 2011 01:12:02 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Mike Travis <travis@....com>
Cc:	Chris Wright <chrisw@...s-sol.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, Mike Habeck <habeck@....com>,
	Dimitri Sivanich <sivanich@....com>,
	Derek Fults <dfults@....com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>, stable@...nel.org,
	iommu@...ts.linux-foundation.org, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] Intel pci: Fix various problems with Intel IOMMU
 code

On Sat, 2011-05-28 at 13:15 -0500, Mike Travis wrote:
> 	Various problems exist in the Intel IOMMU PCI driver when
> 	using DMA remapping in 1:1 identity mode on UV systems and
> 	devices cannot address all of physical memory.
> 
> 	This patchset addresses those problems.

Patches 1-6 applied to iommu-2.6.git. Please test. Thanks.

Please note for future reference that 'From:' lines such as the one in
your patch 1/7 should be *first* in the body of your email. The git-am
tool doesn't find them and set the authorship if you put them with the
Signed-off-bys. Also please avoid putting whitespace at the beginning of
every line of your commit comments.

I still hate patch 7, but the point was that I wouldn't have to care
about it. Once your patches 1-6 are included in known stable releases
that your SCU can recognise, it can just pass 'iommu=pt' for those.

It's only the "probably buggy" kernels with older release numbers that
you'll pass 'forcedac,pt64' to, so your mission is to get patch 7 or
some variant of it accepted into *those* kernels.

-- 
dwmw2

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