Re: [Xen-devel] [PATCH v6] x86/iommu: add IOMMU entries for p2m_mmio_direct pages

2017-02-08 Thread George Dunlap
On 07/02/17 17:28, Roger Pau Monne wrote: > There's nothing wrong with allowing the domain to perform DMA transfers to > MMIO areas that it already can access from the CPU, and this allows us to > remove the hack in set_identity_p2m_entry for PVH Dom0. > > Signed-off-by: Roger Pau Monné > Reviewe

Re: [Xen-devel] [PATCH v6] x86/iommu: add IOMMU entries for p2m_mmio_direct pages

2017-02-08 Thread Jan Beulich
>>> On 07.02.17 at 18:28, wrote: > There's nothing wrong with allowing the domain to perform DMA transfers to > MMIO areas that it already can access from the CPU, and this allows us to > remove the hack in set_identity_p2m_entry for PVH Dom0. > > Signed-off-by: Roger Pau Monné > Reviewed-by: An