Hi Yaohui, Yes, there is a flag associated both with the used and the avail rings to disable notifications. This can be used to implement polling.
There have been multiple research projects/papers that have experimented with polling. Regards, Anthony Liguori On Fri, Sep 27, 2013 at 1:56 PM, Hu Yaohui <loki2...@gmail.com> wrote: > Hi All, > I am wondering whether virtio has provided polling mode already. Instead > of sending a event from guest to host through eventfd on guest side and > inject an interrupt into guest on host side to notify each other? Could > both sides keep polling the Vring to communicate with each other? > Thanks for your time! > > Best Wishes, > Yaohui >