On Wed, Apr 25, 2012 at 02:40:39PM +0530, Amit Shah wrote: > If a port was open before going into one of the sleep states, the port > can continue normal operation after restore. However, the host has to > be told that the guest side of the connection is open to restore > pre-suspend state. > > This wasn't noticed so far due to a bug in qemu that was fixed recently > (which marked the guest-side connection as always open). > > CC: stable@xxxxxxxxxxxxxxx # Only for 3.3 > > Signed-off-by: Amit Shah <amit.shah@xxxxxxxxxx> Applied and queued for the next 3.4 pull, thanks. > --- > drivers/char/virtio_console.c | 7 +++++++ > 1 files changed, 7 insertions(+), 0 deletions(-) > > diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c > index ddf86b6..cdf2f54 100644 > --- 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; > } > -- > 1.7.7.6 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
