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author | Luke Gorrie <luke@snabb.co> | 2015-04-26 15:00:49 +0200 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2015-04-27 20:49:45 +0200 |
commit | 294ce717e0f212ed0763307f3eab72b4a1bdf4d0 (patch) | |
tree | 6219dfb61787de117b5b4765836e9031f9455fe7 | |
parent | 658c27181bf3b08a9cf2fab00ecce7f76065f6af (diff) | |
download | qemu-294ce717e0f212ed0763307f3eab72b4a1bdf4d0.zip qemu-294ce717e0f212ed0763307f3eab72b4a1bdf4d0.tar.gz qemu-294ce717e0f212ed0763307f3eab72b4a1bdf4d0.tar.bz2 |
vhost-user: Send VHOST_RESET_OWNER on vhost stop
Ensure that the vhost-user slave knows when the vrings are valid and
when they are invalid, for example during a guest reboot.
The vhost-user protocol says this of VHOST_RESET_OWNER:
Issued when a new connection is about to be closed. The Master
will no longer own this connection (and will usually close it).
Send this message to tell the vhost-user slave that the vhost session
has ended and that session state (e.g. vrings) is no longer valid.
Signed-off-by: Luke Gorrie <luke@snabb.co>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r-- | hw/net/vhost_net.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c index cf23335..47f8b89 100644 --- a/hw/net/vhost_net.c +++ b/hw/net/vhost_net.c @@ -263,6 +263,13 @@ static void vhost_net_stop_one(struct vhost_net *net, &file); assert(r >= 0); } + } else if (net->nc->info->type == NET_CLIENT_OPTIONS_KIND_VHOST_USER) { + for (file.index = 0; file.index < net->dev.nvqs; ++file.index) { + const VhostOps *vhost_ops = net->dev.vhost_ops; + int r = vhost_ops->vhost_call(&net->dev, VHOST_RESET_OWNER, + NULL); + assert(r >= 0); + } } if (net->nc->info->poll) { net->nc->info->poll(net->nc, true); |