On Fri, Apr 16, 2021 at 10:23:32AM -0700, Jacob Pan wrote: > Perhaps similar to cgroup v1 vs v2, it took a long time and with known > limitations in v1. cgroup v2 is still having transition problems, if anything it is a cautionary tale to think really hard about uAPI because transitioning can be really hard. It might be very wise to make /dev/ioasid and /dev/vfio ioctl compatible in some way so existing software has a smoother upgrade path. For instance by defining a default IOASID Jason
