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