mirror of https://github.com/acidanthera/audk.git
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
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/** @file
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QNC Smm Library Services header file.
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Copyright (c) 2013-2015 Intel Corporation.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __QNC_SMM_LIB_H__
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#define __QNC_SMM_LIB_H__
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/**
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This routine is the chipset code that accepts a request to "open" a region of SMRAM.
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The region could be legacy ABSEG, HSEG, or TSEG near top of physical memory.
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The use of "open" means that the memory is visible from all boot-service
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and SMM agents.
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@retval FALSE Cannot open a locked SMRAM region
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@retval TRUE Success to open SMRAM region.
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**/
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BOOLEAN
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EFIAPI
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QNCOpenSmramRegion (
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VOID
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);
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/**
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This routine is the chipset code that accepts a request to "close" a region of SMRAM.
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The region could be legacy AB or TSEG near top of physical memory.
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The use of "close" means that the memory is only visible from SMM agents,
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not from BS or RT code.
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@retval FALSE Cannot open a locked SMRAM region
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@retval TRUE Success to open SMRAM region.
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**/
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BOOLEAN
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EFIAPI
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QNCCloseSmramRegion (
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VOID
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);
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/**
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This routine is the chipset code that accepts a request to "lock" SMRAM.
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The region could be legacy AB or TSEG near top of physical memory.
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The use of "lock" means that the memory can no longer be opened
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to BS state.
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**/
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VOID
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EFIAPI
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QNCLockSmramRegion (
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VOID
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);
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#endif
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