tree ed5f684cb6a5b683846d6b3d97fa2c0999835c24
parent 4e13c1ac6baa1d6c2b650d66ca89e1e12727ec19
author Alexey Kardashevskiy <aik@ozlabs.ru> 1369107190 +1000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1371711314 +1000

powerpc/vfio: Implement IOMMU driver for VFIO

VFIO implements platform independent stuff such as
a PCI driver, BAR access (via read/write on a file descriptor
or direct mapping when possible) and IRQ signaling.

The platform dependent part includes IOMMU initialization
and handling.  This implements an IOMMU driver for VFIO
which does mapping/unmapping pages for the guest IO and
provides information about DMA window (required by a POWER
guest).

Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>