On Fri, Mar 14, 2014 at 12:18:38PM +0100, Gerd Hoffmann wrote: > Hi, > > > Perhaps a configuration field is better, like this: > > > > u32 events_read; > > u32 events_clear; > > > > A new event sets a bit in events_read and generates a configuration > > change interrupt. The guest should never write to events_read. > > Makes sense to me. I think I'll go write up things as diff against > virtio-wip, then post it for review. > > cheers, > Gerd >
Net device has a similar problem with gratitious packet sending. What we are doing there is VIRTIO_NET_S_ANNOUNCE bit in the status field in the configuration, coupled with VIRTIO_NET_CTRL_ANNOUNCE_ACK command to clear it. -- MST
