diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/vhost-vdpa.c | 15 |
1 files 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))) { |