MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h

   1 /*++
   2
   3 Copyright (c) 2006 - 2007, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   Variable.h
  15
  16 Abstract:
  17
  18 --*/
  19
  20 #ifndef _VARIABLE_H
  21 #define _VARIABLE_H
  22
  23 #include <PiDxe.h>
  24 #include <Protocol/VariableWrite.h>
  25 #include <Protocol/FaultTolerantWriteLite.h>
  26 #include <Protocol/FirmwareVolumeBlock.h>
  27 #include <Protocol/Variable.h>
  28 #include <Library/PcdLib.h>
  29 #include <Library/UefiDriverEntryPoint.h>
  30 #include <Library/DxeServicesTableLib.h>
  31 #include <Library/UefiRuntimeLib.h>
  32 #include <Library/DebugLib.h>
  33 #include <Library/BaseMemoryLib.h>
  34 #include <Library/FvbServiceLib.h>
  35 #include <Library/UefiBootServicesTableLib.h>
  36 #include <Library/UefiLib.h>
  37 #include <Library/BaseLib.h>
  38 #include <Library/MemoryAllocationLib.h>
  39 #include <Library/HobLib.h>
  40 #include <Guid/VariableInfo.h>
  41 #include <Guid/GlobalVariable.h>
  42 #include <VariableFormat.h>
  43
  44
  45
  46 #define VARIABLE_RECLAIM_THRESHOLD (1024)
  47
  48 #define VARIABLE_STORE_SIZE FixedPcdGet32(PcdVariableStoreSize)
  49 #define SCRATCH_SIZE        FixedPcdGet32(PcdMaxVariableSize)
  50
  51 //
  52 // Define GET_PAD_SIZE to optimize compiler
  53 //
  54 #if ((ALIGNMENT == 0) || (ALIGNMENT == 1))
  55 #define GET_PAD_SIZE(a) (0)
  56 #else
  57 #define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))
  58 #endif
  59
  60 #define GET_VARIABLE_NAME_PTR(a)  (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))
  61
  62
  63 typedef struct {
  64   VARIABLE_HEADER *CurrPtr;
  65   VARIABLE_HEADER *EndPtr;
  66   VARIABLE_HEADER *StartPtr;
  67   BOOLEAN         Volatile;
  68 } VARIABLE_POINTER_TRACK;
  69
  70 typedef struct {
  71   EFI_PHYSICAL_ADDRESS  VolatileVariableBase;
  72   EFI_PHYSICAL_ADDRESS  NonVolatileVariableBase;
  73   EFI_LOCK              VariableServicesLock;
  74   UINT32                ReentrantState;
  75 } VARIABLE_GLOBAL;
  76
  77 typedef struct {
  78   VARIABLE_GLOBAL VariableGlobal;
  79   UINTN           VolatileLastVariableOffset;
  80   UINTN           NonVolatileLastVariableOffset;
  81   UINT32          FvbInstance;
  82 } VARIABLE_MODULE_GLOBAL;
  83
  84 typedef struct {
  85   EFI_GUID    *Guid;
  86   CHAR16      *Name;
  87   UINT32      Attributes;
  88   UINTN       DataSize;
  89   VOID        *Data;
  90 } VARIABLE_CACHE_ENTRY;
  91
  92
  93 //
  94 // Functions
  95 //
  96
  97 EFI_STATUS
  98 EFIAPI
  99 VariableServiceInitialize (
 100   IN EFI_HANDLE         ImageHandle,
 101   IN EFI_SYSTEM_TABLE   *SystemTable
 102   );
 103
 104
 105 EFI_STATUS
 106 FtwVariableSpace (
 107   IN EFI_PHYSICAL_ADDRESS   VariableBaseAddress,
 108   IN UINT8                  *Buffer,
 109   IN UINTN                  BufferSize
 110   );
 111
 112 #endif