Re: [PATCH 0/4] Shadow VirtQueue event index support

[Michael S. Tsirkin]

On Thu, Oct 20, 2022 at 05:52:47PM +0200, Eugenio Pérez wrote:
> Event idx helps to reduce the number of notifications between the device
> and the driver. It allows them to specify an index on the circular
> descriptors rings where to issue the notification, instead of a single
> binary indicator.
> 
> Adding support for SVQ.


Jason seems to be taking this through net

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>

> These patches are sent on top of [1] series, so trivial conflicts could arise
> if it is applied directly on master. Future versions can be not based on
> it is more convenient.
> 
> [1] https://lists.nongnu.org/archive/html/qemu-devel/2022-10/msg03280.html
> 
> Eugenio Pérez (4):
>   vhost: allocate event_idx fields on vring
>   vhost: toggle device callbacks using used event idx
>   vhost: use avail event idx on vhost_svq_kick
>   vhost: Accept event idx flag
> 
>  hw/virtio/vhost-shadow-virtqueue.c | 39 ++++++++++++++++++++++++------
>  1 file changed, 31 insertions(+), 8 deletions(-)
> 
> -- 
> 2.31.1
>