1 files changed, 78 insertions, 0 deletions
diff --git a/EdkModulePkg/Include/Common/Variable.h b/EdkModulePkg/Include/Common/Variable.h
new file mode 100644
index 0000000000..e75adafc12
--- /dev/null
+++ b/EdkModulePkg/Include/Common/Variable.h
@@ -0,0 +1,78 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. 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.             
+
+Module Name:
+
+  EfiVariable.h
+  
+Abstract:
+  
+  Header file for EFI Variable Services
+
+--*/
+
+#ifndef _EFI_VARIABLE_H_
+#define _EFI_VARIABLE_H_
+
+#define VARIABLE_STORE_SIGNATURE  EFI_SIGNATURE_32 ('$', 'V', 'S', 'S')
+
+#define MAX_VARIABLE_SIZE         1024
+
+#define VARIABLE_DATA             0x55AA
+
+//
+// Variable Store Header flags
+//
+#define VARIABLE_STORE_FORMATTED  0x5a
+#define VARIABLE_STORE_HEALTHY    0xfe
+
+//
+// Variable Store Status
+//
+typedef enum {
+  EfiRaw,
+  EfiValid,
+  EfiInvalid,
+  EfiUnknown
+} VARIABLE_STORE_STATUS;
+
+//
+// Variable State flags
+//
+#define VAR_IN_DELETED_TRANSITION     0xfe  // Variable is in obsolete transistion
+#define VAR_DELETED                   0xfd  // Variable is obsolete
+#define VAR_ADDED                     0x7f  // Variable has been completely added
+#define IS_VARIABLE_STATE(_c, _Mask)  (BOOLEAN) (((~_c) & (~_Mask)) != 0)
+
+#pragma pack(1)
+
+typedef struct {
+  UINT32  Signature;
+  UINT32  Size;
+  UINT8   Format;
+  UINT8   State;
+  UINT16  Reserved;
+  UINT32  Reserved1;
+} VARIABLE_STORE_HEADER;
+
+typedef struct {
+  UINT16    StartId;
+  UINT8     State;
+  UINT8     Reserved;
+  UINT32    Attributes;
+  UINT32     NameSize;
+  UINT32     DataSize;
+  EFI_GUID  VendorGuid;
+} VARIABLE_HEADER;
+
+#pragma pack()
+
+#endif // _EFI_VARIABLE_H_