virtio-serial: propagate guest_connected to the port on post_load

Submitted by Hans de Goede on March 24, 2013, 1:02 p.m.

Details

Message ID 1364130157-13177-2-git-send-email-hdegoede@redhat.com
State New
Headers show

Commit Message

Hans de Goede March 24, 2013, 1:02 p.m.
From: Alon Levy <alevy@redhat.com>

When migrating a host with with a spice agent running the mouse becomes
non operational after the migration due to the agent state being
inconsistent between the guest and the client.

After migration the spicevmc backend on the destination has never been notified
of the (non 0) guest_connected state. Virtio-serial holds this state
information and migrates it, this patch properly propagates this information
to virtio-console and through that to interested chardev backends.

rhbz #725965

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 hw/virtio-serial-bus.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch hide | download patch | download mbox

diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index eb7af21..a9cb114 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -579,6 +579,7 @@  static void virtio_serial_post_load_timer_cb(void *opaque)
     VirtIOSerial *s = opaque;
     VirtIOSerialPort *port;
     uint8_t host_connected;
+    VirtIOSerialPortClass *vsc;
 
     if (!s->post_load) {
         return;
@@ -594,6 +595,10 @@  static void virtio_serial_post_load_timer_cb(void *opaque)
             send_control_event(s, port->id, VIRTIO_CONSOLE_PORT_OPEN,
                                port->host_connected);
         }
+        vsc = VIRTIO_SERIAL_PORT_GET_CLASS(port);
+        if (vsc->set_guest_connected) {
+            vsc->set_guest_connected(port, port->guest_connected);
+        }
     }
     g_free(s->post_load->connected);
     qemu_free_timer(s->post_load->timer);