From: "Michael S. Tsirkin" Subject: [PATCHv2 0/2] virtio-net: 64 bit features, event index Date: Fri, 20 May 2011 02:24:00 +0300 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Krishna Kumar , Carsten Otte , lguest-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Shirley Ma , kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-s390-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, habanero-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, Heiko Carstens , virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, steved-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org, Christian Borntraeger , Tom Lendacky , Martin Schwidefsky , linux390-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org To: qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: lguest-bounces+glkvl-lguest=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: lguest-bounces+glkvl-lguest=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org List-Id: kvm.vger.kernel.org OK, here's a patch that implements the virtio spec update that I sent earlier. It supercedes the PUBLISH_USED_IDX patches I sent out earlier. Support is added in both userspace and vhost-net. If you see issues or are just curious, you can turn the new feature off. For example: -global virtio-net-pci.event_idx=on -global virtio-blk-pci.event_idx=off Also, it's possible to try both vhost-net and virtio-net. Another part is adding support for 64 bit features in place. The high bits are actually unused, to test hack qemu to set some high bit. linux code is here: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost-net-next-event-idx-v3 git://git.kernel.org/pub/scm/linux/kernel/git/mst/qemu-kvm.git virtio-net-event-idx-v3 Changes from v1: - unify used and avail ring handling in a single feature bit - copy avail event idx fix from vhost-net Michael S. Tsirkin (2): virtio/vhost: support 64 bit features virtio+vhost: event idx feature hw/qdev-properties.c | 39 +++++++++++++--- hw/qdev.h | 10 ++++ hw/s390-virtio-bus.c | 5 +- hw/s390-virtio-bus.h | 2 +- hw/syborg_virtio.c | 7 ++- hw/vhost_net.c | 14 ++++-- hw/vhost_net.h | 4 +- hw/virtio-9p.c | 2 +- hw/virtio-balloon.c | 2 +- hw/virtio-blk.c | 2 +- hw/virtio-blk.h | 2 +- hw/virtio-net.c | 11 +++-- hw/virtio-net.h | 34 +++++++------- hw/virtio-pci.c | 91 +++++++++++++++++++++++++++---------- hw/virtio-serial-bus.c | 2 +- hw/virtio.c | 116 ++++++++++++++++++++++++++++++++++++++++++------ hw/virtio.h | 24 +++++++--- 17 files changed, 275 insertions(+), 92 deletions(-) -- 1.7.5.53.gc233e