SmmLockBox.h

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#ifndef _SMM_LOCK_BOX_GUID_H_
#define _SMM_LOCK_BOX_GUID_H_
 
#define EFI_SMM_LOCK_BOX_COMMUNICATION_GUID \
  {0x2a3cfebd, 0x27e8, 0x4d0a, {0x8b, 0x79, 0xd6, 0x88, 0xc2, 0xa3, 0xe1, 0xc0}}
 
//
// Below data structure is used for communication between PEI/DXE to SMM.
//
 
#define EFI_SMM_LOCK_BOX_COMMAND_SAVE                  0x1
#define EFI_SMM_LOCK_BOX_COMMAND_UPDATE                0x2
#define EFI_SMM_LOCK_BOX_COMMAND_RESTORE               0x3
#define EFI_SMM_LOCK_BOX_COMMAND_SET_ATTRIBUTES        0x4
#define EFI_SMM_LOCK_BOX_COMMAND_RESTORE_ALL_IN_PLACE  0x5
 
typedef struct {
  UINT32    Command;
  UINT32    DataLength;
  UINT64    ReturnStatus;
} EFI_SMM_LOCK_BOX_PARAMETER_HEADER;
 
typedef struct {
  EFI_SMM_LOCK_BOX_PARAMETER_HEADER    Header;
  GUID                                 Guid;
  PHYSICAL_ADDRESS                     Buffer;
  UINT64                               Length;
} EFI_SMM_LOCK_BOX_PARAMETER_SAVE;
 
typedef struct {
  EFI_SMM_LOCK_BOX_PARAMETER_HEADER    Header;
  GUID                                 Guid;
  UINT64                               Offset;
  PHYSICAL_ADDRESS                     Buffer;
  UINT64                               Length;
} EFI_SMM_LOCK_BOX_PARAMETER_UPDATE;
 
typedef struct {
  EFI_SMM_LOCK_BOX_PARAMETER_HEADER    Header;
  GUID                                 Guid;
  PHYSICAL_ADDRESS                     Buffer;
  UINT64                               Length;
} EFI_SMM_LOCK_BOX_PARAMETER_RESTORE;
 
typedef struct {
  EFI_SMM_LOCK_BOX_PARAMETER_HEADER    Header;
  GUID                                 Guid;
  UINT64                               Attributes;
} EFI_SMM_LOCK_BOX_PARAMETER_SET_ATTRIBUTES;
 
typedef struct {
  EFI_SMM_LOCK_BOX_PARAMETER_HEADER    Header;
} EFI_SMM_LOCK_BOX_PARAMETER_RESTORE_ALL_IN_PLACE;
 
extern EFI_GUID  gEfiSmmLockBoxCommunicationGuid;
 
#endif