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[Qemu-devel] [PATCH v5 04/17] virtio-serial: save/load: Send target host
From: |
Amit Shah |
Subject: |
[Qemu-devel] [PATCH v5 04/17] virtio-serial: save/load: Send target host connection status if different |
Date: |
Wed, 14 Apr 2010 10:58:24 +0530 |
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 <address@hidden>
---
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
- [Qemu-devel] [PATCH v5 00/17] virtio-serial fixes, new abi for port discovery, flow control, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 01/17] virtio-serial: save/load: Ensure target has enough ports, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 02/17] virtio-serial: save/load: Ensure nr_ports on src and dest are same., Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 03/17] virtio-serial: save/load: Ensure we have hot-plugged ports instantiated, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 04/17] virtio-serial: save/load: Send target host connection status if different,
Amit Shah <=
- [Qemu-devel] [PATCH v5 05/17] virtio-serial: Use control messages to notify guest of new ports, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 06/17] virtio-serial: whitespace: match surrounding code, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 07/17] virtio-serial: Remove redundant check for 0-sized write request, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 08/17] virtio-serial: Update copyright year to 2010, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 09/17] virtio-serial: Propagate errors in initialising ports / devices in guest, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 10/17] virtio-serial: Send out guest data to ports only if port is opened, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 11/17] iov: Introduce a new file for helpers around iovs, add iov_from_buf(), Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 12/17] iov: Add iov_to_buf and iov_size helpers, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 13/17] virtio-serial: Handle scatter-gather buffers for control messages, Amit Shah, 2010/04/14
- [Qemu-devel] [PATCH v5 14/17] virtio-serial: Handle scatter/gather input from the guest, Amit Shah, 2010/04/14