Hi Kevin, On Thu, Sep 02, 2021 at 10:27:06PM +0000, Tian, Kevin wrote: > > Indeed, this looks like a flavour of the accelerated invalidation > > stuff we've talked about already. > > > > I would see it probably exposed as some HW specific IOCTL on the iommu > > fd to get access to the accelerated invalidation for IOASID's in the > > FD. > > > > Indeed, this seems like a further example of why /dev/iommu is looking > > like a good idea as this RFC is very complicated to do something > > fairly simple. > > > > Where are thing on the /dev/iommu work these days? > > We are actively working on the basic skeleton. Our original plan is to send > out the 1st draft before LPC, with support of vfio type1 semantics and > and pci dev only (single-device group). But later we realized that adding > multi-devices group support is also necessary even in the 1st draft to avoid > some dirty hacks and build the complete picture. This will add some time > though. If things go well, we'll still try hit the original plan. If not, it will be > soon after LPC. As I also want to take a look at your work for this implementation, would you please CC me when you send out your patches? Thank you!
