1/* $NetBSD: xen-compat.h,v 1.1.1.2 2011/12/07 14:41:16 cegger Exp $ */
2/******************************************************************************
3 * xen-compat.h
4 *
5 * Guest OS interface to Xen. Compatibility layer.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to
9 * deal in the Software without restriction, including without limitation the
10 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
11 * sell copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Copyright (c) 2006, Christian Limpach
26 */
27
28#ifndef __XEN_PUBLIC_XEN_COMPAT_H__
29#define __XEN_PUBLIC_XEN_COMPAT_H__
30
31#define __XEN_LATEST_INTERFACE_VERSION__ 0x0003020a
32
33#if defined(__XEN__) || defined(__XEN_TOOLS__)
34/* Xen is built with matching headers and implements the latest interface. */
35#define __XEN_INTERFACE_VERSION__ __XEN_LATEST_INTERFACE_VERSION__
36#elif !defined(__XEN_INTERFACE_VERSION__)
37/* Guests which do not specify a version get the legacy interface. */
38#define __XEN_INTERFACE_VERSION__ 0x00000000
39#endif
40
41#if __XEN_INTERFACE_VERSION__ > __XEN_LATEST_INTERFACE_VERSION__
42#error "These header files do not support the requested interface version."
43#endif
44
45#endif /* __XEN_PUBLIC_XEN_COMPAT_H__ */
46