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authorAmit Shah <amit.shah@redhat.com>2010-01-20 00:36:53 +0530
committerAnthony Liguori <aliguori@us.ibm.com>2010-01-20 08:25:23 -0600
commit6663a1956eb628f1bddc96d2cab361e039df5571 (patch)
tree6129b7448ac9e125b9e1a298283e3d56fa3f44b7 /hw/virtio-serial.h
parent98b19252cf1bd97c54bc4613f3537c5ec0aae263 (diff)
virtio-serial-bus: Maintain guest and host port open/close state
Via control channel messages, the guest can tell us whether a port got opened or closed. Similarly, we can also indicate to the guest of host port open/close events. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/virtio-serial.h')
-rw-r--r--hw/virtio-serial.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/virtio-serial.h b/hw/virtio-serial.h
index fe8e357a7..d9c7acba3 100644
--- a/hw/virtio-serial.h
+++ b/hw/virtio-serial.h
@@ -49,6 +49,7 @@ struct virtio_console_control {
#define VIRTIO_CONSOLE_PORT_READY 0
#define VIRTIO_CONSOLE_CONSOLE_PORT 1
#define VIRTIO_CONSOLE_RESIZE 2
+#define VIRTIO_CONSOLE_PORT_OPEN 3
/* == In-qemu interface == */
@@ -92,6 +93,11 @@ struct VirtIOSerialPort {
/* Identify if this is a port that binds with hvc in the guest */
uint8_t is_console;
+
+ /* Is the corresponding guest device open? */
+ bool guest_connected;
+ /* Is this device open for IO on the host? */
+ bool host_connected;
};
struct VirtIOSerialPortInfo {