On Tue, Feb 07, 2017 at 04:28:19PM +0800, Peter Xu wrote: > This patch is based on Aviv Ben-David (<bd.a...@gmail.com>)'s patch > upstream: > > "IOMMU: enable intel_iommu map and unmap notifiers" > https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg01453.html > > However I removed/fixed some content, and added my own codes. > > Instead of translate() every page for iotlb invalidations (which is > slower), we walk the pages when needed and notify in a hook function. > > This patch enables vfio devices for VT-d emulation. > > And, since we already have vhost DMAR support via device-iotlb, a > natural benefit that this patch brings is that vt-d enabled vhost can > live even without ATS capability now. Though more tests are needed. >
Hi, Michael, If there is any possiblility that this version be merged in the future at any point, would you please help add Aviv's sign-off into this patch as well right here (I think it should be before Jason's r-b): Signed-off-by: Aviv Ben-David <bd.a...@gmail.com> Since I think we should definitely give Aviv more credit since he's done a great work before (and devoted lots of time). (Aviv, please reply if you have other opinions, or I'll just make myself bold) Thanks, > Reviewed-by: Jason Wang <jasow...@redhat.com> > Signed-off-by: Peter Xu <pet...@redhat.com> [...] -- peterx
