On Mon, Aug 19, 2024 at 11:19:39AM -0700, Nicolin Chen wrote: > > But nesting enablment with out viommu is alot less useful than I had > > thought :( > > Actually, without viommu, the hwpt cache invalidate alone could > still support non-SVA case? That is what I thought, but doesn't the guest still have to invalidate the CD table entry # 0? > Though we still have the blocker at the msi mapping... It still > requires a solution, even for viommu series. Yes, small steps. The point of this step was to get the nested paging only (without msi, pri, etc, etc) Jason