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qemu-patch-raspberry4
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vhost-user: save features if the char dev is closed 

That way the state can be correctly restored when the device is opened
again. This might happen if the backend is restarted.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1738768
Reported-by: Pei Zhang <pezhang@redhat.com>
Fixes: 6ab79a20af ("do not call vhost_net_cleanup() on running net from char user event")
Cc: ddstreet@canonical.com
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Message-Id: <20190924162044.11414-1-amorenoz@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
stable-4.2
Adrian Moreno 2019-09-24 18:20:44 +02:00 committed by Michael S. Tsirkin
parent 4f59102571
commit c6beefd674
1 changed files with 4 additions and 0 deletions
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4
net/vhost-user.c
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@ -235,6 +235,10 @@ static void chr_closed_bh(void *opaque)
s = DO_UPCAST(NetVhostUserState, nc, ncs[0]);
if (s->vhost_net) {
s->acked_features = vhost_net_get_acked_features(s->vhost_net);
}
qmp_set_link(name, false, &err);
qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, net_vhost_user_event,