OvmfPkg: Apply uncrustify changes

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

/** @file\r
  Functions to make Xen hypercalls.\r
\r
  Copyright (C) 2014, Citrix Ltd.\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <PiDxe.h>\r
\r
#include <IndustryStandard/Xen/hvm/params.h>\r
#include <IndustryStandard/Xen/memory.h>\r
\r
#include <Library/DebugLib.h>\r
#include <Library/XenHypercallLib.h>\r
\r
RETURN_STATUS\r
EFIAPI\r
XenHypercallLibConstruct (\r
  VOID\r
  )\r
{\r
  XenHypercallLibInit ();\r
  //\r
  // We don't fail library construction, since that has catastrophic\r
  // consequences for client modules (whereas those modules may easily be\r
  // running on a non-Xen platform). Instead, XenHypercallIsAvailable()\r
  // will return FALSE.\r
  //\r
  return RETURN_SUCCESS;\r
}\r
\r
UINT64\r
EFIAPI\r
XenHypercallHvmGetParam (\r
  IN UINT32  Index\r
  )\r
{\r
  xen_hvm_param_t  Parameter;\r
  INTN             Error;\r
\r
  Parameter.domid = DOMID_SELF;\r
  Parameter.index = Index;\r
  Error           = XenHypercall2 (\r
                      __HYPERVISOR_hvm_op,\r
                      HVMOP_get_param,\r
                      (INTN)&Parameter\r
                      );\r
  if (Error != 0) {\r
    DEBUG ((\r
      DEBUG_ERROR,\r
      "XenHypercall: Error %Ld trying to get HVM parameter %d\n",\r
      (INT64)Error,\r
      Index\r
      ));\r
    return 0;\r
  }\r
\r
  return Parameter.value;\r
}\r
\r
INTN\r
EFIAPI\r
XenHypercallMemoryOp (\r
  IN     UINTN  Operation,\r
  IN OUT VOID   *Arguments\r
  )\r
{\r
  return XenHypercall2 (\r
           __HYPERVISOR_memory_op,\r
           Operation,\r
           (INTN)Arguments\r
           );\r
}\r
\r
INTN\r
EFIAPI\r
XenHypercallEventChannelOp (\r
  IN     INTN  Operation,\r
  IN OUT VOID  *Arguments\r
  )\r
{\r
  return XenHypercall2 (\r
           __HYPERVISOR_event_channel_op,\r
           Operation,\r
           (INTN)Arguments\r
           );\r
}\r