On Wed, 16 May 2018 15:53:48 +0200 Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote: > On 15/05/2018 18:01, Cornelia Huck wrote: > > On Fri, 11 May 2018 11:53:52 +0200 > > Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote: > >> Couldn't we introduce ABI versioning ? > > Can you elaborate what you're referring to? > > > > If you mean checking capabilities of the kernel or so: If we can avoid > > that and just try (and stop if it does not work), I'd prefer that (no > > dependencies). > > VFIO_CHECK_EXTENSION is already used in different drivers > for this kind of interface extension. > We could use it to setup appropriate callbacks for scsh/csch/xsch/hsch > depending on the extension argument. Hm, this might be useful for things like xsch that aren't really well served by the current interface. Or we could try using the device-specific capability interface. Let me think and play with this a bit.
