From mboxrd@z Thu Jan 1 00:00:00 1970 From: Amit Shah Subject: [PATCH 9/9] virtio-serial-bus: Let the guest know of host connection changes after migration Date: Fri, 19 Mar 2010 17:28:46 +0530 Message-ID: <1268999926-29560-10-git-send-email-amit.shah@redhat.com> References: <1268999926-29560-1-git-send-email-amit.shah@redhat.com> <1268999926-29560-2-git-send-email-amit.shah@redhat.com> <1268999926-29560-3-git-send-email-amit.shah@redhat.com> <1268999926-29560-4-git-send-email-amit.shah@redhat.com> <1268999926-29560-5-git-send-email-amit.shah@redhat.com> <1268999926-29560-6-git-send-email-amit.shah@redhat.com> <1268999926-29560-7-git-send-email-amit.shah@redhat.com> <1268999926-29560-8-git-send-email-amit.shah@redhat.com> <1268999926-29560-9-git-send-email-amit.shah@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1268999926-29560-9-git-send-email-amit.shah@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: qemu-devel@nongnu.org Cc: Amit Shah , quintela@redhat.com, mst@redhat.com, virtualization@lists.linux-foundation.org List-Id: virtualization@lists.linuxfoundation.org If the host connection to a port is closed on the destination machine after migration, when the connection was open on the source, the host 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 2242edf..f5ea37e 100644 --- a/hw/virtio-serial-bus.c +++ b/hw/virtio-serial-bus.c @@ -435,6 +435,7 @@ static void virtio_serial_save(QEMUFile *f, void *opaque) QTAILQ_FOREACH(port, &s->ports, next) { qemu_put_be32s(f, &port->id); qemu_put_byte(f, port->guest_connected); + qemu_put_byte(f, port->host_connected); } } @@ -488,11 +489,21 @@ 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); 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