From: Eugenio Pérez <epere...@redhat.com>
Since this capability is emulated by qemu shadowed CVQ cannot forward it
to the device. Process all that command within qemu.
Signed-off-by: Eugenio Pérez <epere...@redhat.com>
Message-Id: <20221221115015.1400889-4-epere...@redhat.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Acked-by: Jason Wang <jasow...@redhat.com>
---
net/vhost-vdpa.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index d36664f33a..41de76376f 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -616,9 +616,18 @@ static int
vhost_vdpa_net_handle_ctrl_avail(VhostShadowVirtqueue *svq,
out.iov_len = iov_to_buf(elem->out_sg, elem->out_num, 0,
s->cvq_cmd_out_buffer,
vhost_vdpa_net_cvq_cmd_len());
- dev_written = vhost_vdpa_net_cvq_add(s, out.iov_len, sizeof(status));
- if (unlikely(dev_written < 0)) {
- goto out;
+ if (*(uint8_t *)s->cvq_cmd_out_buffer == VIRTIO_NET_CTRL_ANNOUNCE) {
+ /*
+ * Guest announce capability is emulated by qemu, so don't forward to
+ * the device.
+ */
+ dev_written = sizeof(status);
+ *s->status = VIRTIO_NET_OK;
+ } else {
+ dev_written = vhost_vdpa_net_cvq_add(s, out.iov_len, sizeof(status));
+ if (unlikely(dev_written < 0)) {
+ goto out;
+ }
}
if (unlikely(dev_written < sizeof(status))) {
--
MST
