On Thu, 20 Apr 2023 at 04:13, Duan, Zhenzhong <zhenzhong.d...@intel.com> wrote: > >From: Peter Maydell <peter.mayd...@linaro.org>
> >Question: is it OK for an implementation of this method to call the notifier > >for > >translations that are in the IOMMU and which are not in the scope of the > >notifier (ie which are outside the intersection) ? Or must it specifically > >restrict > >itself to only calling the notifier for translations which are inside the > >notifier's > >range ? > In the calling path to notifier->notify(), memory_region_notify_iommu_one() > ensures passing an IOMMUTLBEntry in the notifier's range. > I think it's ok for an implementation of replay() to walk over the entire > IOMMU MemoryRegion because unrelated entries are filtered as above. > It's just less optimistic which this patch try to address for intel_iommu. OK, great. -- PMM
