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x86/amd-iommu: Export cache-coherency capability
authorJoerg Roedel <joerg.roedel@amd.com>
Tue, 27 Jul 2010 15:14:24 +0000 (17:14 +0200)
committerJoerg Roedel <joerg.roedel@amd.com>
Tue, 27 Jul 2010 15:14:24 +0000 (17:14 +0200)
This patch exports the capability of the AMD IOMMU to force
cache coherency of DMA transactions through the IOMMU-API.
This is required to disable some nasty hacks in KVM when
this capability is not available.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

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