> From: Yang Zhang [mailto:yang.zhang...@gmail.com] > Sent: Friday, May 27, 2016 10:26 AM > > On 2016/5/26 16:29, Lan Tianyu wrote: > > Hi All: > > We try pushing virtual iommu support for Xen guest and there are some > > features blocked by it. > > > > Motivation: > > ----------------------- > > 1) Add SVM(Shared Virtual Memory) support for Xen guest > > To support iGFX pass-through for SVM enabled devices, it requires > > virtual iommu support to emulate related registers and intercept/handle > > guest SVM configure in the VMM. > > IIRC, SVM needs the nested IOMMU support not only virtual iommu. Correct > me if i am wrong. >
nested in physical IOMMU. You don't need to present nested in vIOMMU. Thanks Kevin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
