virtio: console: tell host of open ports after resume from s3/s4

[linux-flexiantxendom0-3.2.10.git] / drivers / char / virtio_console.c

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index ddf86b6..cdf2f54 100644 (file)
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1895,6 +1895,13 @@ static int virtcons_restore(struct virtio_device *vdev)
 
                /* Get port open/close status on the host */
                send_control_msg(port, VIRTIO_CONSOLE_PORT_READY, 1);
+
+               /*
+                * If a port was open at the time of suspending, we
+                * have to let the host know that it's still open.
+                */
+               if (port->guest_connected)
+                       send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 1);
        }
        return 0;
 }