include/hw/xen/interface/xen-compat.h

   1 /* SPDX-License-Identifier: MIT */
   2 /******************************************************************************
   3  * xen-compat.h
   4  *
   5  * Guest OS interface to Xen.  Compatibility layer.
   6  *
   7  * Copyright (c) 2006, Christian Limpach
   8  */
   9
  10 #ifndef __XEN_PUBLIC_XEN_COMPAT_H__
  11 #define __XEN_PUBLIC_XEN_COMPAT_H__
  12
  13 #define __XEN_LATEST_INTERFACE_VERSION__ 0x00040e00
  14
  15 #if defined(__XEN__) || defined(__XEN_TOOLS__)
  16 /* Xen is built with matching headers and implements the latest interface. */
  17 #define __XEN_INTERFACE_VERSION__ __XEN_LATEST_INTERFACE_VERSION__
  18 #elif !defined(__XEN_INTERFACE_VERSION__)
  19 /* Guests which do not specify a version get the legacy interface. */
  20 #define __XEN_INTERFACE_VERSION__ 0x00000000
  21 #endif
  22
  23 #if __XEN_INTERFACE_VERSION__ > __XEN_LATEST_INTERFACE_VERSION__
  24 #error "These header files do not support the requested interface version."
  25 #endif
  26
  27 #define COMPAT_FLEX_ARRAY_DIM XEN_FLEX_ARRAY_DIM
  28
  29 #endif /* __XEN_PUBLIC_XEN_COMPAT_H__ */