projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 9b6bbcdb MK |
1 | /** @file\r |
| 2 | QNC Smm Library Services header file.\r | |
| 3 | \r | |
| 4 | Copyright (c) 2013-2015 Intel Corporation.\r | |
| 5 | \r | |
| c9f231d0 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 9b6bbcdb MK |
7 | \r |
| 8 | **/\r | |
| 9 | \r | |
| 10 | #ifndef __QNC_SMM_LIB_H__\r | |
| 11 | #define __QNC_SMM_LIB_H__\r | |
| 12 | \r | |
| 13 | /**\r | |
| 14 | This routine is the chipset code that accepts a request to "open" a region of SMRAM.\r | |
| 15 | The region could be legacy ABSEG, HSEG, or TSEG near top of physical memory.\r | |
| 16 | The use of "open" means that the memory is visible from all boot-service\r | |
| 17 | and SMM agents.\r | |
| 18 | \r | |
| 19 | @retval FALSE Cannot open a locked SMRAM region\r | |
| 20 | @retval TRUE Success to open SMRAM region.\r | |
| 21 | **/\r | |
| 22 | BOOLEAN\r | |
| 23 | EFIAPI\r | |
| 24 | QNCOpenSmramRegion (\r | |
| 25 | VOID\r | |
| 26 | );\r | |
| 27 | \r | |
| 28 | /**\r | |
| 29 | This routine is the chipset code that accepts a request to "close" a region of SMRAM.\r | |
| 30 | The region could be legacy AB or TSEG near top of physical memory.\r | |
| 31 | The use of "close" means that the memory is only visible from SMM agents,\r | |
| 32 | not from BS or RT code.\r | |
| 33 | \r | |
| 34 | @retval FALSE Cannot open a locked SMRAM region\r | |
| 35 | @retval TRUE Success to open SMRAM region.\r | |
| 36 | **/\r | |
| 37 | BOOLEAN\r | |
| 38 | EFIAPI\r | |
| 39 | QNCCloseSmramRegion (\r | |
| 40 | VOID\r | |
| 41 | );\r | |
| 42 | \r | |
| 43 | /**\r | |
| 44 | This routine is the chipset code that accepts a request to "lock" SMRAM.\r | |
| 45 | The region could be legacy AB or TSEG near top of physical memory.\r | |
| 46 | The use of "lock" means that the memory can no longer be opened\r | |
| 47 | to BS state.\r | |
| 48 | **/\r | |
| 49 | VOID\r | |
| 50 | EFIAPI\r | |
| 51 | QNCLockSmramRegion (\r | |
| 52 | VOID\r | |
| 53 | );\r | |
| 54 | \r | |
| 55 | \r | |
| 56 | #endif\r | |
| 57 | \r |