Hi Kevin, On Fri, Jul 09, 2021 at 07:48:44AM +0000, Tian, Kevin wrote: > /dev/iommu provides an unified interface for managing I/O page tables for > devices assigned to userspace. Device passthrough frameworks (VFIO, vDPA, > etc.) are expected to use this interface instead of creating their own logic to > isolate untrusted device DMAs initiated by userspace. > > This proposal describes the uAPI of /dev/iommu and also sample sequences > with VFIO as example in typical usages. The driver-facing kernel API provided > by the iommu layer is still TBD, which can be discussed after consensus is > made on this uAPI. The document looks good to me, I don't have other concerns at the moment Thanks, Jean
