Patchwork virtio-serial: propagate guest_connected to the port on post_load

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Submitter Hans de Goede
Date March 24, 2013, 1:02 p.m.
Message ID <1364130157-13177-2-git-send-email-hdegoede@redhat.com>
Download mbox | patch
Permalink /patch/230451/
State New
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Comments

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

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);