From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1O1vZm-0008ET-3q for qemu-devel@nongnu.org; Wed, 14 Apr 2010 01:55:50 -0400 Received: from [140.186.70.92] (port=43789 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O1vZk-0008DH-5J for qemu-devel@nongnu.org; Wed, 14 Apr 2010 01:55:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1O1vZi-0000h6-N2 for qemu-devel@nongnu.org; Wed, 14 Apr 2010 01:55:47 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42252) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1O1vZi-0000gz-DA for qemu-devel@nongnu.org; Wed, 14 Apr 2010 01:55:46 -0400 From: Amit Shah Date: Wed, 14 Apr 2010 10:58:24 +0530 Message-Id: <1271222917-7803-5-git-send-email-amit.shah@redhat.com> In-Reply-To: <1271222917-7803-4-git-send-email-amit.shah@redhat.com> References: <1271222917-7803-1-git-send-email-amit.shah@redhat.com> <1271222917-7803-2-git-send-email-amit.shah@redhat.com> <1271222917-7803-3-git-send-email-amit.shah@redhat.com> <1271222917-7803-4-git-send-email-amit.shah@redhat.com> Subject: [Qemu-devel] [PATCH v5 04/17] virtio-serial: save/load: Send target host connection status if different List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: qemu list , Amit Shah , Gerd Hoffmann , Juan Quintela If the host connection to a port is closed on the destination machine after migration, whereas the connection was open on the source, the guest has to be informed of that. Similar for a host connection open on the destination. Signed-off-by: Amit Shah --- hw/virtio-serial-bus.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c index 5316ef6..484dc94 100644 --- a/hw/virtio-serial-bus.c +++ b/hw/virtio-serial-bus.c @@ -395,6 +395,7 @@ static void virtio_serial_save(QEMUFile *f, void *opaque) */ qemu_put_be32s(f, &port->id); qemu_put_byte(f, port->guest_connected); + qemu_put_byte(f, port->host_connected); } } @@ -448,6 +449,7 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id) /* Items in struct VirtIOSerialPort */ for (i = 0; i < nr_active_ports; i++) { uint32_t id; + bool host_connected; id = qemu_get_be32(f); port = find_port_by_id(s, id); @@ -460,6 +462,15 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id) } port->guest_connected = qemu_get_byte(f); + host_connected = qemu_get_byte(f); + if (host_connected != port->host_connected) { + /* + * We have to let the guest know of the host connection + * status change + */ + send_control_event(port, VIRTIO_CONSOLE_PORT_OPEN, + port->host_connected); + } } return 0; -- 1.6.2.5