On Mon, Oct 18, 2021 at 02:57:12PM +1100, David Gibson wrote: > The first user might read this. Subsequent users are likely to just > copy paste examples from earlier things without fully understanding > them. In general documenting restrictions somewhere is never as > effective as making those restrictions part of the interface signature > itself. I'd think this argument would hold more water if you could point to someplace in existing userspace that cares about the VFIO grouping. >From what I see the applications do what the admin tells them to do - and if the admin says to use a certain VFIO device then that is excatly what they do. I don't know of any applications that ask the admin to tell them group information. What I see is aligning what the kernel provides to the APIs the applications have already built. Jason
