1 /****************************************************************************** 2 * xen-compat.h 3 * 4 * Guest OS interface to Xen. Compatibility layer. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Copyright (c) 2006, Christian Limpach 25 */ 26 27 #ifndef __XEN_PUBLIC_XEN_COMPAT_H__ 28 #define __XEN_PUBLIC_XEN_COMPAT_H__ 29 30 #define __XEN_LATEST_INTERFACE_VERSION__ 0x00030205 31 32 #if defined(__XEN__) || defined(__XEN_TOOLS__) 33 /* Xen is built with matching headers and implements the latest interface. */ 34 #define __XEN_INTERFACE_VERSION__ __XEN_LATEST_INTERFACE_VERSION__ 35 #elif !defined(__XEN_INTERFACE_VERSION__) 36 /* Guests which do not specify a version get the legacy interface. */ 37 #define __XEN_INTERFACE_VERSION__ 0x00000000 38 #endif 39 40 #if __XEN_INTERFACE_VERSION__ > __XEN_LATEST_INTERFACE_VERSION__ 41 #error "These header files do not support the requested interface version." 42 #endif 43 44 /* Fields defined as a Xen guest handle since 0x00030205. */ 45 #if __XEN_INTERFACE_VERSION__ >= 0x00030205 46 #define XEN_GUEST_HANDLE_00030205(type) XEN_GUEST_HANDLE(type) 47 #else 48 #define XEN_GUEST_HANDLE_00030205(type) type * 49 #endif 50 51 #endif /* __XEN_PUBLIC_XEN_COMPAT_H__ */ 52