On Mon, Mar 28, 2022 at 09:53:27AM +0800, Jason Wang wrote: > To me, it looks more easier to not answer this question by letting > userspace know about the change, That is not backwards compatbile, so I don't think it helps unless we say if you open /dev/vfio/vfio you get old behavior and if you open /dev/iommu you get new... Nor does it answer if I can fix RDMA or not :\ So we really do need to know what exactly is the situation here. Jason
