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+/** @file
+ GUID used for MemoryOverwriteRequestControl UEFI variable defined in
+ TCG Platform Reset Attack Mitigation Specification 1.00.
+ See http://trustedcomputinggroup.org for the latest specification
+
+ The purpose of the MemoryOverwriteRequestControl UEFI variable is to give users (e.g., OS, loader) the ability to
+ indicate to the platform that secrets are present in memory and that the platform firmware must clear memory upon
+ a restart. The OS loader should not create the variable. Rather, the firmware is required to create it.
+
+@copyright
+ Copyright (c) 2012 Intel Corporation. All rights reserved
+ This software and associated documentation (if any) is furnished
+ under a license and may only be used or copied in accordance
+ with the terms of the license. Except as permitted by such
+ license, no part of this software or documentation may be
+ reproduced, stored in a retrieval system, or transmitted in any
+ form or by any means without the express written consent of
+ Intel Corporation.
+
+ This file contains a 'Sample Driver' and is licensed as such
+ under the terms of your license agreement with Intel or your
+ vendor. This file may be modified by the user, subject to
+ the additional terms of the license agreement
+**/
+
+#ifndef _MEMORY_OVERWRITE_CONTROL_DATA_GUID_H_
+#define _MEMORY_OVERWRITE_CONTROL_DATA_GUID_H_
+
+#define MEMORY_ONLY_RESET_CONTROL_GUID \
+ { \
+ 0xe20939be, 0x32d4, 0x41be, {0xa1, 0x50, 0x89, 0x7f, 0x85, 0xd4, 0x98, 0x29} \
+ }
+
+///
+/// Variable name is "MemoryOverwriteRequestControl" and it is a 1 byte unsigned value.
+/// The attributes should be:
+/// EFI_VARIABLE_NON_VOLATILE |
+/// EFI_VARIABLE_BOOTSERVICE_ACCESS |
+/// EFI_VARIABLE_RUNTIME_ACCESS
+///
+#define MEMORY_OVERWRITE_REQUEST_VARIABLE_NAME L"MemoryOverwriteRequestControl"
+
+///
+/// 0 = Firmware MUST clear the MOR bi
+/// 1 = Firmware MUST set the MOR bit
+///
+#define MOR_CLEAR_MEMORY_BIT_MASK 0x01
+
+///
+/// 0 = Firmware MAY autodetect a clean shutdown of the Static RTM OS.
+/// 1 = Firmware MUST NOT autodetect a clean shutdown of the Static RTM OS.
+///
+#define MOR_DISABLEAUTODETECT_BIT_MASK 0x10
+
+///
+/// MOR field bit offset
+///
+#define MOR_CLEAR_MEMORY_BIT_OFFSET 0
+#define MOR_DISABLEAUTODETECT_BIT_OFFSET 4
+
+/**
+ Return the ClearMemory bit value 0 or 1.
+
+ @param mor 1 byte value that contains ClearMemory and DisableAutoDetect bit.
+
+ @return ClearMemory bit value
+**/
+#define MOR_CLEAR_MEMORY_VALUE(mor) (((UINT8)(mor) & MOR_CLEAR_MEMORY_BIT_MASK) >> MOR_CLEAR_MEMORY_BIT_OFFSET)
+
+/**
+ Return the DisableAutoDetect bit value 0 or 1.
+
+ @param mor 1 byte value that contains ClearMemory and DisableAutoDetect bit.
+
+ @return DisableAutoDetect bit value
+**/
+#define MOR_DISABLE_AUTO_DETECT_VALUE(mor) (((UINT8)(mor) & MOR_DISABLEAUTODETECT_BIT_MASK) >> MOR_DISABLEAUTODETECT_BIT_OFFSET)
+
+extern EFI_GUID gEfiMemoryOverwriteControlDataGuid;
+
+#endif