On Tue, Mar 15, 2022 at 09:49:01AM -0400, Matthew Rosato wrote: > The rationale for splitting steps 1 and 2 are that VFIO_SET_IOMMU doesn't > have a mechanism for specifying more than the type as an arg, no? Otherwise > yes, you could specify a kvm fd at this point and it would have some other > advantages (e.g. skip notifier). But we still can't use the IOMMU for > mapping until step 3. Stuff like this is why I'd be much happier if this could join our iommfd project so we can have clean modeling of the multiple iommu_domains. Jason