tree 643da66cb95f5afbfc752901654626c373e26820
parent 92e6d7438ee631aac85258ee3d4de8c860d8c32f
author Cornelia Huck <cornelia.huck@de.ibm.com> 1412692787 +0200
committer Michael S. Tsirkin <mst@redhat.com> 1418119525 +0200

virtio: allow transports to get avail/used addresses

For virtio-1, we can theoretically have a more complex virtqueue
layout with avail and used buffers not on a contiguous memory area
with the descriptor table. For now, it's fine for a transport driver
to stay with the old layout: It needs, however, a way to access
the locations of the avail/used rings so it can register them with
the host.

Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

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