| commit | 4725a4181b0fd5b646c51f079d7eac753b14b094 | |
| author | Eugenio Pérez <eperezma@redhat.com> | |
| Mon, 14 Mar 2022 17:34:44 +0000 (14 18:34 +0100) | ||
| committer | Jason Wang <jasowang@redhat.com> | |
| Tue, 15 Mar 2022 05:57:44 +0000 (15 13:57 +0800) | ||
| tree | aad20294b423827c12eed4b496b2b6edaebd8ce2 | treesnapshot (tar.gz zip) |
| parent | a8ac88585da1a3ae9c48bfd9e04430e895dc912d | commitdiff |
vhost: Add vhost_svq_valid_features to shadow vq
This allows SVQ to negotiate features with the guest and the device. For
the device, SVQ is a driver. While this function bypasses all
non-transport features, it needs to disable the features that SVQ does
not support when forwarding buffers. This includes packed vq layout,
indirect descriptors or event idx.
Future changes can add support to offer more features to the guest,
since the use of VirtQueue gives this for free. This is left out at the
moment for simplicity.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This allows SVQ to negotiate features with the guest and the device. For
the device, SVQ is a driver. While this function bypasses all
non-transport features, it needs to disable the features that SVQ does
not support when forwarding buffers. This includes packed vq layout,
indirect descriptors or event idx.
Future changes can add support to offer more features to the guest,
since the use of VirtQueue gives this for free. This is left out at the
moment for simplicity.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
| hw/virtio/vhost-shadow-virtqueue.c | diffblobblamehistory | |
| hw/virtio/vhost-shadow-virtqueue.h | diffblobblamehistory | |
| hw/virtio/vhost-vdpa.c | diffblobblamehistory |