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virtio-serial: propagate guest_connected to the port on post_load

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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>
Message-id: 1364292483-16564-11-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Alon Levy 2013-03-26 11:08:02 +01:00 committed by Anthony Liguori
parent b2c1394af1
commit bc6b815d9e
1 changed files with 5 additions and 0 deletions
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5
hw/virtio-serial-bus.c
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@ -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);