SecurityPkg: OpalPasswordSupportLib: Add Opal password support library.

APIs used to support opal password solution to trig opal command.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>

SecurityPkg/Include/Guid/OpalPasswordExtraInfoVariable.h

@@ -0,0 +1,27 @@
+/** @file
+  Defines Name GUIDs to represent an Opal device variable guid for Opal Security Feature.
+
+Copyright (c) 2016, 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 _OPAL_PASSWORD_EXTRA_INFO_VARIABLE_H_
+#define _OPAL_PASSWORD_EXTRA_INFO_VARIABLE_H_
+
+#define OPAL_EXTRA_INFO_VAR_NAME L"OpalExtraInfo"
+
+typedef struct {
+  UINT8   EnableBlockSid;
+} OPAL_EXTRA_INFO_VAR;
+
+extern EFI_GUID gOpalExtraInfoVariableGuid;
+
+#endif // _OPAL_PASSWORD_SECURITY_VARIABLE_H_
+