On Sun, 2011-07-31 at 08:21 +1000, Benjamin Herrenschmidt wrote: > On Sat, 2011-07-30 at 09:58 +1000, Benjamin Herrenschmidt wrote: > > Hi folks ! > > > > So I promised Anthony I would try to summarize some of the comments & > > issues we have vs. VFIO after we've tried to use it for PCI pass-through > > on POWER. It's pretty long, there are various items with more or less > > impact, some of it is easily fixable, some are API issues, and we'll > > probably want to discuss them separately, but for now here's a brain > > dump. > > > > David, Alexei, please make sure I haven't missed anything :-) > > And I think I have :-) > > * Config space > > VFIO currently handles that as a byte stream. It's quite gross to be > honest and it's not right. You shouldn't lose access size information > between guest and host when performing real accesses. > > Some config space registers can have side effects and not respecting > access sizes can be nasty. It's a bug, let's fix it. Alex -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
