Re: BUG in drivers/dma/ioat/dma_v2.c:314

From: David Woodhouse
Date: Thu Jul 01 2010 - 02:21:28 EST


On Wed, 2010-06-30 at 22:44 +0100, Williams, Dan J wrote:
> I don't see a way around this beyond blacklisting this (platform, vt-d
> setting, driver) combination. Is there a quirk infrastructure for this
> sort of problem?

Yeah, kind of. If the IOAT PCI device _always_ has its own IOMMU, we
could have a quirk for it which says it must _never_ be matched by a
catch-all IOMMU. That would probably solve it?

--
David Woodhouse Open Source Technology Centre
David.Woodhouse@xxxxxxxxx Intel Corporation

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