On Monday 09 July 2007, Avi Kivity wrote: > > The problem with hotplugging devices on PCI is that there is not a good > > standard for this yet. The best option we have is probably PCI express > > hotplug, but I'm not sure how many legacy operating systems already support > > this. > > This is indeed a problem. Perhaps we should have a virtqueue for > reconfiguration (with a couple of read messages always queued for > host-side changes, and a write message sent when the guest reconfigures). Yes, that would be my preferred solution as well. For devices that need reconfiguration capability, one virtqueue for all out-of-band information should be enough, with device specific messages. Why do you think we want to have multiple outstanding read messages? I would guess that a single message is enough, you can always requeue it after one event gets processed. Arnd <>< _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
