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38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
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/** @file
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Support for Microsoft Secure MOR implementation, defined at
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Microsoft Secure MOR implementation.
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https://msdn.microsoft.com/en-us/library/windows/hardware/mt270973(v=vs.85).aspx
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Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_H__
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#define __MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_H__
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#define MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_GUID \
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{ \
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0xBB983CCF, 0x151D, 0x40E1, {0xA0, 0x7B, 0x4A, 0x17, 0xBE, 0x16, 0x82, 0x92} \
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}
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#define MEMORY_OVERWRITE_REQUEST_CONTROL_LOCK_NAME L"MemoryOverwriteRequestControlLock"
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//
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// VendorGuid: {BB983CCF-151D-40E1-A07B-4A17BE168292}
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// Name: MemoryOverwriteRequestControlLock
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// Attributes: NV+BS+RT
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// GetVariable value in Data parameter: 0x0 (unlocked); 0x1 (locked without key); 0x2 (locked with key)
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// SetVariable value in Data parameter: 0x0 (unlocked); 0x1 (locked);
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// Revision 2 additionally accepts an 8-byte value that represents a shared secret key.
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//
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//
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// Note: Setting MemoryOverwriteRequestControlLock does not commit to flash (just changes the internal lock state).
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// Getting the variable returns the internal state and never exposes the key.
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//
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extern EFI_GUID gEfiMemoryOverwriteRequestControlLockGuid;
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#endif
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