Fix Duet hang/reboot issue due to the NULL instance of CpuExceptionHandlerLib is...

[mirror_edk2.git] / DuetPkg / FSVariable / FSVariable.h

/*++\r
\r
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
\r
  FSVariable.h\r
  \r
Abstract:\r
\r
--*/\r
\r
#ifndef _FS_VARIABLE_H\r
#define _FS_VARIABLE_H\r
\r
//\r
// Statements that include other header files\r
//\r
#include <PiDxe.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/PcdLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/UefiRuntimeLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiLib.h>\r
#include <Library/HobLib.h>\r
#include <Library/DxeServicesTableLib.h>\r
#include <Library/DevicePathLib.h>\r
\r
#include <Guid/HobList.h>\r
#include <Guid/FlashMapHob.h>\r
#include <Guid/VariableFormat.h>\r
#include <Guid/GlobalVariable.h>\r
#include <Protocol/Variable.h>\r
#include <Protocol/VariableWrite.h>\r
#include <Protocol/SimpleFileSystem.h>\r
#include <Protocol/BlockIo.h>\r
\r
\r
#include "EfiFlashMap.h"\r
#include "VariableStorage.h"\r
\r
#define VOLATILE_VARIABLE_STORE_SIZE  FixedPcdGet32(PcdVariableStoreSize)\r
#define VARIABLE_SCRATCH_SIZE         MAX(FixedPcdGet32(PcdMaxVariableSize), FixedPcdGet32(PcdMaxHardwareErrorVariableSize))\r
#define VARIABLE_RECLAIM_THRESHOLD    (1024)\r
///\r
/// The size of a 3 character ISO639 language code.\r
///\r
#define ISO_639_2_ENTRY_SIZE    3\r
\r
#define GET_VARIABLE_NAME_PTR(a)  (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))\r
\r
typedef enum {\r
  Physical,\r
  Virtual\r
} VARIABLE_POINTER_TYPE;\r
\r
typedef enum {\r
  NonVolatile,\r
  Volatile,\r
  MaxType\r
} VARIABLE_STORAGE_TYPE;\r
\r
typedef struct {\r
  VARIABLE_HEADER         *CurrPtr;\r
  VARIABLE_HEADER         *EndPtr;\r
  VARIABLE_HEADER         *StartPtr;\r
  VARIABLE_STORAGE_TYPE   Type;\r
} VARIABLE_POINTER_TRACK;\r
\r
#define VARIABLE_MEMBER_OFFSET(Member, StartOffset) \\r
        ( sizeof (VARIABLE_STORE_HEADER) + (StartOffset) + \\r
          (UINTN) ((UINT8 *) &((VARIABLE_HEADER*) 0)->Member - (UINT8 *) &((VARIABLE_HEADER*) 0)->StartId) \\r
        )\r
\r
\r
typedef struct {\r
  EFI_EVENT_NOTIFY   GoVirtualChildEvent[MaxType];\r
  VARIABLE_STORAGE   *VariableStore[MaxType];       // Instance of VariableStorage\r
  VOID               *VariableBase[MaxType];        // Start address of variable storage\r
  UINTN              LastVariableOffset[MaxType];   // The position to write new variable to (index from VariableBase)\r
  VOID               *Scratch;                      // Buffer used during reclaim\r
  UINTN              CommonVariableTotalSize;\r
  UINTN              HwErrVariableTotalSize;\r
  CHAR8              *PlatformLangCodes;\r
  CHAR8              *LangCodes;\r
  CHAR8              *PlatformLang;\r
  CHAR8              Lang[ISO_639_2_ENTRY_SIZE + 1];\r
} VARIABLE_GLOBAL;\r
\r
//\r
// Functions\r
//\r
\r
EFI_STATUS\r
EFIAPI\r
VariableServiceInitialize (\r
  IN EFI_HANDLE         ImageHandle,\r
  IN EFI_SYSTEM_TABLE   *SystemTable\r
  );\r
\r
VOID\r
EFIAPI\r
VariableClassAddressChangeEvent (\r
  IN EFI_EVENT        Event,\r
  IN VOID             *Context\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
DuetGetVariable (\r
  IN      CHAR16            *VariableName,\r
  IN      EFI_GUID          *VendorGuid,\r
  OUT     UINT32            *Attributes OPTIONAL,\r
  IN OUT  UINTN             *DataSize,\r
  OUT     VOID              *Data\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
GetNextVariableName (\r
  IN OUT  UINTN             *VariableNameSize,\r
  IN OUT  CHAR16            *VariableName,\r
  IN OUT  EFI_GUID          *VendorGuid\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
SetVariable (\r
  IN CHAR16                  *VariableName,\r
  IN EFI_GUID                *VendorGuid,\r
  IN UINT32                  Attributes,\r
  IN UINTN                   DataSize,\r
  IN VOID                    *Data\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
QueryVariableInfo (\r
  IN  UINT32                 Attributes,\r
  OUT UINT64                 *MaximumVariableStorageSize,\r
  OUT UINT64                 *RemainingVariableStorageSize,\r
  OUT UINT64                 *MaximumVariableSize\r
  );\r
\r
#endif\r