1 /*
2 * Private include for xenbus communications.
3 *
4 * Copyright (C) 2005 Rusty Russell, IBM Corporation
5 *
6 * This file may be distributed separately from the Linux kernel, or
7 * incorporated into other software packages, subject to the following license:
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this source file (the "Software"), to deal in the Software without
11 * restriction, including without limitation the rights to use, copy, modify,
12 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
13 * and to permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 * IN THE SOFTWARE.
26 *
27 * $FreeBSD: releng/8.1/sys/xen/xenbus/xenbus_comms.h 186557 2008-12-29 06:31:03Z kmacy $
28 */
29
30 #ifndef _XENBUS_COMMS_H
31 #define _XENBUS_COMMS_H
32
33 struct sx;
34 extern int xen_store_evtchn;
35 extern char *xen_store;
36
37 int xs_init(void);
38 int xb_init_comms(void);
39
40 /* Low level routines. */
41 int xb_write(const void *data, unsigned len, struct lock_object *);
42 int xb_read(void *data, unsigned len, struct lock_object *);
43 extern int xenbus_running;
44
45 char *kasprintf(const char *fmt, ...);
46
47
48 #endif /* _XENBUS_COMMS_H */
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