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(parent: 88d7ab8) | patch
kvm/vfio: Support for DMA coherent IOMMUs
authorAlex Williamson <alex.williamson@redhat.com>
Wed, 26 Feb 2014 18:38:40 +0000 (11:38 -0700)
committerAlex Williamson <alex.williamson@redhat.com>
Wed, 26 Feb 2014 18:38:40 +0000 (11:38 -0700)
commit9d830d47c7a756da6f0b55fa25d51eec0739eb02
tree3f40dbe93c1b0120246eab829f33490a127e336ctree | snapshot
parent88d7ab8949427f492c39f6daf0ac67f0242a88bccommit | diff
kvm/vfio: Support for DMA coherent IOMMUs

VFIO now has support for using the IOMMU_CACHE flag and a mechanism
for an external user to test the current operating mode of the IOMMU.
Add support for this to the kvm-vfio pseudo device so that we only
register noncoherent DMA when necessary.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
virt/kvm/vfio.c diff | blob | history
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