[Qemu-devel] [PATCH 0/4] ioeventfd support for virtio-mmio

[Ying-Shiuan Pan <yingshiuan.pan@gmail.com>]

I added host/guest notifiers support for virtio-mmio, so that qemu can
enable vhost-net for kvm-arm. Sorry for that I cannot measure the performance
difference because I have only Exynos-5250 arndale boards which only provide
a 100 Mbps Ethernet. But in our previous work in kvm-arm (refer: Evaluation of
a Server-Grade Software-Only ARM Hypervisor), the vhost-net increased at least
30% in throughput comparing to virtio-net.

Ying-Shiuan Pan (4):
  virtio-mmio: introduce set_host_notifier()
  virtio-mmio: introduce set_guest_notifiers
  virtio-mmio: start ioeventfd when status gets DRIVER_OK
  virtio-mmio: add a new property for ioeventfd

 hw/block/virtio-blk.c      |   1 +
 hw/net/virtio-net.c        |   1 +
 hw/virtio/virtio-mmio.c    | 176 +++++++++++++++++++++++++++++++++++++++++++++
 include/hw/virtio/virtio.h |   1 +
 4 files changed, 179 insertions(+)

-- 
1.8.1.2