1 /*****************************************************************************
2  * xenbus.h
3  *
4  * Xenbus protocol details.
5  *
6  * Copyright (C) 2005 XenSource Ltd.
7  */
8 
9 #ifndef _XEN_PUBLIC_IO_XENBUS_H
10 #define _XEN_PUBLIC_IO_XENBUS_H
11 
12 /* The state of either end of the Xenbus, i.e. the current communication
13    status of initialisation across the bus.  States here imply nothing about
14    the state of the connection between the driver and the kernel's device
15    layers.  */
16 enum xenbus_state
17 {
18 	XenbusStateUnknown      = 0,
19 	XenbusStateInitialising = 1,
20 	XenbusStateInitWait     = 2,  /* Finished early
21 					 initialisation, but waiting
22 					 for information from the peer
23 					 or hotplug scripts. */
24 	XenbusStateInitialised  = 3,  /* Initialised and waiting for a
25 					 connection from the peer. */
26 	XenbusStateConnected    = 4,
27 	XenbusStateClosing      = 5,  /* The device is being closed
28 					 due to an error or an unplug
29 					 event. */
30 	XenbusStateClosed       = 6,
31 
32 	/*
33 	* Reconfiguring: The device is being reconfigured.
34 	*/
35 	XenbusStateReconfiguring = 7,
36 
37 	XenbusStateReconfigured  = 8
38 };
39 
40 #endif /* _XEN_PUBLIC_IO_XENBUS_H */
41 
42 /*
43  * Local variables:
44  *  c-file-style: "linux"
45  *  indent-tabs-mode: t
46  *  c-indent-level: 8
47  *  c-basic-offset: 8
48  *  tab-width: 8
49  * End:
50  */
51