projects / mirror_edk2.git / blame
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1 | /** @file\r |
| 2 | QNC Smm Library Services header file.\r | |
| 3 | \r | |
| 4 | Copyright (c) 2013-2015 Intel Corporation.\r | |
| 5 | \r | |
| 6 | This program and the accompanying materials\r | |
| 7 | are licensed and made available under the terms and conditions of the BSD License\r | |
| 8 | which accompanies this distribution. The full text of the license may be found at\r | |
| 9 | http://opensource.org/licenses/bsd-license.php\r | |
| 10 | \r | |
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 13 | \r | |
| 14 | **/\r | |
| 15 | \r | |
| 16 | #ifndef __QNC_SMM_LIB_H__\r | |
| 17 | #define __QNC_SMM_LIB_H__\r | |
| 18 | \r | |
| 19 | /**\r | |
| 20 | This routine is the chipset code that accepts a request to "open" a region of SMRAM.\r | |
| 21 | The region could be legacy ABSEG, HSEG, or TSEG near top of physical memory.\r | |
| 22 | The use of "open" means that the memory is visible from all boot-service\r | |
| 23 | and SMM agents.\r | |
| 24 | \r | |
| 25 | @retval FALSE Cannot open a locked SMRAM region\r | |
| 26 | @retval TRUE Success to open SMRAM region.\r | |
| 27 | **/\r | |
| 28 | BOOLEAN\r | |
| 29 | EFIAPI\r | |
| 30 | QNCOpenSmramRegion (\r | |
| 31 | VOID\r | |
| 32 | );\r | |
| 33 | \r | |
| 34 | /**\r | |
| 35 | This routine is the chipset code that accepts a request to "close" a region of SMRAM.\r | |
| 36 | The region could be legacy AB or TSEG near top of physical memory.\r | |
| 37 | The use of "close" means that the memory is only visible from SMM agents,\r | |
| 38 | not from BS or RT code.\r | |
| 39 | \r | |
| 40 | @retval FALSE Cannot open a locked SMRAM region\r | |
| 41 | @retval TRUE Success to open SMRAM region.\r | |
| 42 | **/\r | |
| 43 | BOOLEAN\r | |
| 44 | EFIAPI\r | |
| 45 | QNCCloseSmramRegion (\r | |
| 46 | VOID\r | |
| 47 | );\r | |
| 48 | \r | |
| 49 | /**\r | |
| 50 | This routine is the chipset code that accepts a request to "lock" SMRAM.\r | |
| 51 | The region could be legacy AB or TSEG near top of physical memory.\r | |
| 52 | The use of "lock" means that the memory can no longer be opened\r | |
| 53 | to BS state.\r | |
| 54 | **/\r | |
| 55 | VOID\r | |
| 56 | EFIAPI\r | |
| 57 | QNCLockSmramRegion (\r | |
| 58 | VOID\r | |
| 59 | );\r | |
| 60 | \r | |
| 61 | \r | |
| 62 | #endif\r | |
| 63 | \r |