On Thu, 19 Nov 2015, Jike Song wrote: > Hi Alex, thanks for the discussion. > > In addition to Kevin's replies, I have a high-level question: can VFIO > be used by QEMU for both KVM and Xen?
No. VFIO cannot be used with Xen today. When running on Xen, the IOMMU is owned by Xen.