OvmfPkg: XenHypercallLib: introduce XenHypercallIsAvailable()

[mirror_edk2.git] / OvmfPkg / Library / XenHypercallLib / ArmXenHypercall.c

/** @file\r
  Xen Hypercall Library implementation for ARM architecture\r
\r
  Copyright (C) 2015, Red Hat, Inc.\r
  Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>\r
\r
  This program and the accompanying materials are licensed and made available\r
  under the terms and conditions of the BSD License that accompanies this\r
  distribution. The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php.\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r
  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
**/\r
\r
#include <Base.h>\r
\r
/**\r
  Check if the Xen Hypercall library is able to make calls to the Xen\r
  hypervisor.\r
\r
  Client code should call further functions in this library only if, and after,\r
  this function returns TRUE.\r
\r
  @retval TRUE   Hypercalls are available.\r
  @retval FALSE  Hypercalls are not available.\r
**/\r
BOOLEAN\r
EFIAPI\r
XenHypercallIsAvailable (\r
  VOID\r
  )\r
{\r
  return TRUE;\r
}\r
\r
RETURN_STATUS\r
EFIAPI\r
XenHypercallLibInit (\r
  VOID\r
  )\r
{\r
  return RETURN_SUCCESS;\r
}\r