On Mon, Nov 15, 2010 at 03:05:39PM -0600, Anthony Liguori wrote: > On 11/15/2010 02:53 PM, Stefan Hajnoczi wrote: > > > >vhost has a solution for this: register a VMChangeStateHandler > >function that stops ioeventfd while vm_stop(0) is in effect. Then > >poll to see if there is work pending. > > > >I will add equivalent functionality to virtio-ioeventfd. > > I still think that stopping this at the net/block layer is going to > be a lot more robust in the long term. > All net/block traffic flows > through a single set of interfaces whereas getting the devices to > completely stop themselves requires touching every device and making > sure that noone adds back vmstop-unfriendly behavior down the road. > > Regards, > > Anthony Liguori
So I'm not sure I understand what is proposed here. Care posting a patch? -- MST