| /** @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 |