OvmfPkg/Library/LockBoxLib/LockBoxLib.h

   1 /** @file
   2
   3  Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
   4
   5  SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef __LOCK_BOX_LIB_IMPL_H__
  10 #define __LOCK_BOX_LIB_IMPL_H__
  11
  12 #pragma pack(1)
  13
  14 typedef struct {
  15   UINT32               Signature;
  16   UINT32               SubPageBuffer;
  17   UINT32               SubPageRemaining;
  18 } LOCK_BOX_GLOBAL;
  19
  20 #define LOCK_BOX_GLOBAL_SIGNATURE SIGNATURE_32('L', 'B', 'G', 'S')
  21
  22 extern LOCK_BOX_GLOBAL *mLockBoxGlobal;
  23
  24 #pragma pack()
  25
  26 /**
  27   Allocates a buffer of type EfiACPIMemoryNVS.
  28
  29   Allocates the number bytes specified by AllocationSize of type
  30   EfiACPIMemoryNVS and returns a pointer to the allocated buffer.
  31   If AllocationSize is 0, then a valid buffer of 0 size is
  32   returned.  If there is not enough memory remaining to satisfy
  33   the request, then NULL is returned.
  34
  35   @param  AllocationSize        The number of bytes to allocate.
  36
  37   @return A pointer to the allocated buffer or NULL if allocation fails.
  38
  39 **/
  40 VOID *
  41 EFIAPI
  42 AllocateAcpiNvsPool (
  43   IN UINTN  AllocationSize
  44   );
  45
  46
  47 RETURN_STATUS
  48 EFIAPI
  49 LockBoxLibInitialize (
  50   VOID
  51   );
  52
  53
  54 #endif