uefi/linaro-edk2/OvmfPkg/Library/LockBoxLib/LockBoxLib.h

/** @file
  
 Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>

 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
 http://opensource.org/licenses/bsd-license.php

 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#ifndef __LOCK_BOX_LIB_IMPL_H__
#define __LOCK_BOX_LIB_IMPL_H__

#pragma pack(1)

typedef struct {
  UINT32               Signature;
  UINT32               SubPageBuffer;
  UINT32               SubPageRemaining;
} LOCK_BOX_GLOBAL;

#define LOCK_BOX_GLOBAL_SIGNATURE SIGNATURE_32('L', 'B', 'G', 'S')

extern LOCK_BOX_GLOBAL *mLockBoxGlobal;

#pragma pack()

/**
  Allocates a buffer of type EfiACPIMemoryNVS.

  Allocates the number bytes specified by AllocationSize of type
  EfiACPIMemoryNVS and returns a pointer to the allocated buffer.
  If AllocationSize is 0, then a valid buffer of 0 size is
  returned.  If there is not enough memory remaining to satisfy
  the request, then NULL is returned.

  @param  AllocationSize        The number of bytes to allocate.

  @return A pointer to the allocated buffer or NULL if allocation fails.

**/
VOID *
EFIAPI
AllocateAcpiNvsPool (
  IN UINTN  AllocationSize
  );


RETURN_STATUS
EFIAPI
LockBoxLibInitialize (
  VOID
  );


#endif