On Sun, 2011-02-13 at 10:52 -0600, Anthony Liguori wrote: > > A virtual bus is just an interface. If all virtual devices that > interact via hcalls would all reside on the same virtual bus, then > having hypercalls registered through that interface makes sense > because > you can associate hypercalls with particular devices. This means > that > you can automatically deregister on device removal and things like > that.
I see. Well, VIO related h-calls are only part of the picture here, I think we can live with having explicit de-registration if needed ;-) Besides the h-call is still implemented even if no device -instance- is currently plugged into the partition anyways. It just returns a (well defined per-hcall) error code if the instance handle passed to it is bogus. > But I don't think this will work out well. I think treating the > hypercalls as a simple dispatch table just like ioport would make > sense. Yup. Cheers, Ben.
