From patchwork Tue Apr 27 12:33:58 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Shah X-Patchwork-Id: 51061 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id DE590B7D6A for ; Tue, 27 Apr 2010 22:48:52 +1000 (EST) Received: from localhost ([127.0.0.1]:54276 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O6kAy-000122-J9 for incoming@patchwork.ozlabs.org; Tue, 27 Apr 2010 08:46:08 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1O6k1I-0005vy-7x for qemu-devel@nongnu.org; Tue, 27 Apr 2010 08:36:08 -0400 Received: from [140.186.70.92] (port=51253 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O6k1G-0005vX-Ga for qemu-devel@nongnu.org; Tue, 27 Apr 2010 08:36:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1O6k1F-0002jA-7b for qemu-devel@nongnu.org; Tue, 27 Apr 2010 08:36:06 -0400 Received: from mx1.redhat.com ([209.132.183.28]:18061) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1O6k1E-0002j5-U8 for qemu-devel@nongnu.org; Tue, 27 Apr 2010 08:36:05 -0400 Received: from int-mx08.intmail.prod.int.phx2.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o3RCa3pU028264 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 27 Apr 2010 08:36:03 -0400 Received: from localhost (vpn-238-78.phx2.redhat.com [10.3.238.78]) by int-mx08.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o3RCa1p3006735; Tue, 27 Apr 2010 08:36:02 -0400 From: Amit Shah To: Anthony Liguori Date: Tue, 27 Apr 2010 18:03:58 +0530 Message-Id: <1272371652-23087-5-git-send-email-amit.shah@redhat.com> In-Reply-To: <1272371652-23087-4-git-send-email-amit.shah@redhat.com> References: <1272371652-23087-1-git-send-email-amit.shah@redhat.com> <1272371652-23087-2-git-send-email-amit.shah@redhat.com> <1272371652-23087-3-git-send-email-amit.shah@redhat.com> <1272371652-23087-4-git-send-email-amit.shah@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.21 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. Cc: Amit Shah , qemu list , Juan Quintela Subject: [Qemu-devel] [PATCH v6 04/18] virtio-serial: save/load: Send target host connection status if different X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org 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;