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-rw-r--r--src/vnet/devices/virtio/vhost-user.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/vnet/devices/virtio/vhost-user.c b/src/vnet/devices/virtio/vhost-user.c
index 100ec613bc2..3cbeca9b3fc 100644
--- a/src/vnet/devices/virtio/vhost-user.c
+++ b/src/vnet/devices/virtio/vhost-user.c
@@ -583,7 +583,10 @@ vhost_user_vring_close (vhost_user_intf_t * vui, u32 qid)
vring->callfd_idx = ~0;
}
if (vring->errfd != -1)
- close (vring->errfd);
+ {
+ close (vring->errfd);
+ vring->errfd = -1;
+ }
vhost_user_vring_init (vui, qid);
}
@@ -1026,12 +1029,16 @@ vhost_user_socket_read (unix_file_t * uf)
goto close_socket;
}
- /* Spec says: Client must [...] stop ring upon receiving VHOST_USER_GET_VRING_BASE. */
- vhost_user_vring_close (vui, msg.state.index);
-
+ /*
+ * Copy last_avail_idx from the vring before closing it because
+ * closing the vring also initializes the vring last_avail_idx
+ */
msg.state.num = vui->vrings[msg.state.index].last_avail_idx;
msg.flags |= 4;
msg.size = sizeof (msg.state);
+
+ /* Spec says: Client must [...] stop ring upon receiving VHOST_USER_GET_VRING_BASE. */
+ vhost_user_vring_close (vui, msg.state.index);
break;
case VHOST_USER_NONE: