> From: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx> > Sent: Monday, July 26, 2021 4:15 PM > > 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 for your review.
