Re: [PATCHv2 03/14] virtio_ring: support event idx feature

2011-05-20 Thread Rusty Russell
On Fri, 20 May 2011 02:10:44 +0300, Michael S. Tsirkin m...@redhat.com wrote: Support for the new event idx feature: 1. When enabling interrupts, publish the current avail index value to the host to get interrupts on the next update. 2. Use the new avail_event feature to reduce the number

[PATCHv2 03/14] virtio_ring: support event idx feature

2011-05-19 Thread Michael S. Tsirkin
Support for the new event idx feature: 1. When enabling interrupts, publish the current avail index value to the host to get interrupts on the next update. 2. Use the new avail_event feature to reduce the number of exits from the guest. Simple test with the simulator: [virtio]# time