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vfio/type1: Add extension to test DMA cache coherence of IOMMU
authorAlex Williamson <alex.williamson@redhat.com>
Wed, 26 Feb 2014 18:38:37 +0000 (11:38 -0700)
committerAlex Williamson <alex.williamson@redhat.com>
Wed, 26 Feb 2014 18:38:37 +0000 (11:38 -0700)
Now that the type1 IOMMU backend can support IOMMU_CACHE, we need to
be able to test whether coherency is currently enforced.  Add an
extension for this.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

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