[guest,kernel] powerpc/pseries: Enable VFIO

[Michael Ellerman]

On Fri, 2017-03-24 at 06:37:21 UTC, Alexey Kardashevskiy wrote:
> This enables VFIO on pseries host in order to allow VFIO in nested guest
> under PR KVM or DPDK in a HV guest. This adds support of
> the VFIO_SPAPR_TCE_IOMMU type.
> 
> This adds exchange() callback to allow TCE updates by the SPAPR TCE IOMMU
> driver in VFIO.
> 
> This initializes DMA32 window parameters in iommu_table_group as
> as this does not implement VFIO_SPAPR_TCE_v2_IOMMU and
> VFIO_SPAPR_TCE_IOMMU just reuses the existing DMA32 window.
> 
> Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>
> Reviewed-by: David Gibson <david at gibson.dropbear.id.au>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/b6e1f6adce8068620f728f717f90f4

cheers