diff mbox series

[RFC,v2,8/8] vdpa: Offer VIRTIO_NET_F_GUEST_ANNOUNCE feature if SVQ is enabled

Message ID 20221019125210.226291-9-eperezma@redhat.com (mailing list archive)
State New, archived
Headers show
Series Guest announce feature emulation using Shadow VirtQueue | expand

Commit Message

Eugenio Perez Martin Oct. 19, 2022, 12:52 p.m. UTC 
So qemu emulates it in case the device does not support it.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 net/vhost-vdpa.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 5fda405a66..64442e8455 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -566,6 +566,9 @@  static NetClientState *net_vhost_vdpa_init(NetClientState *peer,
 
         /* VIRTIO_NET_F_STATUS is mandatory for _F_GUEST_ANNOUNCE. */
         s->vhost_vdpa.added_features |= BIT_ULL(VIRTIO_NET_F_STATUS);
+
+        /* We can emulate guest announce shadowing CVQ */
+        s->vhost_vdpa.added_features |= BIT_ULL(VIRTIO_NET_F_GUEST_ANNOUNCE);
     }
     if (!is_datapath) {
         s->cvq_cmd_out_buffer = qemu_memalign(qemu_real_host_page_size(),