BaseTools: Library hashing fix and optimization for --hash feature

[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
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 (__HYPERVISOR_hvm_op,\r
                         HVMOP_get_param, (INTN) &Parameter);\r
  if (Error != 0) {\r
    DEBUG ((EFI_D_ERROR,\r
            "XenHypercall: Error %Ld trying to get HVM parameter %d\n",\r
            (INT64)Error, Index));\r
    return 0;\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 (__HYPERVISOR_memory_op,\r
                        Operation, (INTN) Arguments);\r
}\r
\r
INTN\r
EFIAPI\r
XenHypercallEventChannelOp (\r
  IN     INTN Operation,\r
  IN OUT VOID *Arguments\r
  )\r
{\r
  return XenHypercall2 (__HYPERVISOR_event_channel_op,\r
                        Operation, (INTN) Arguments);\r
}\r