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[Qemu-devel] [PATCH] vhost-user: save features if the char dev is closed
From: |
Adrian Moreno |
Subject: |
[Qemu-devel] [PATCH] vhost-user: save features if the char dev is closed |
Date: |
Tue, 17 Sep 2019 21:19:01 +0200 |
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 <address@hidden>
Fixes: 6ab79a20af3a (do not call vhost_net_cleanup() on running net from char
user event)
Cc: address@hidden
Cc: Michael S. Tsirkin <address@hidden>
Signed-off-by: Adrian Moreno <address@hidden>
---
net/vhost-user.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/net/vhost-user.c b/net/vhost-user.c
index 51921de443..acf20cb9e0 100644
--- a/net/vhost-user.c
+++ b/net/vhost-user.c
@@ -235,6 +235,13 @@ static void chr_closed_bh(void *opaque)
s = DO_UPCAST(NetVhostUserState, nc, ncs[0]);
+ if (s->vhost_net) {
+ uint64_t features = vhost_net_get_acked_features(s->vhost_net);
+ if (features) {
+ s->acked_features = features;
+ }
+ }
+
qmp_set_link(name, false, &err);
qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, net_vhost_user_event,
--
2.21.0
- [Qemu-devel] [PATCH] vhost-user: save features if the char dev is closed,
Adrian Moreno <=