tyler.durden/audk
1
0
Fork 0
mirror of https://github.com/acidanthera/audk.git synced 2025-07-24 22:24:37 +02:00
Code Issues Packages Projects Releases Wiki Activity

Refine include file of GUID HOB for SMRAM memory reserve, according to review comments.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8763 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xli24 2009-07-06 15:09:45 +00:00
parent c9c705a855
commit 444bf90deb
1 changed files with 29 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
IntelFrameworkPkg/Include/Guid/SmramMemoryReserve.h
View File

@ -1,5 +1,12 @@
/** @file /** @file
GUID for use in reserving SMRAM regions. Definition of GUIDed HOB for reserving SMRAM regions.
This file defines:
* the GUID used to identify the GUID HOB for reserving SMRAM regions.
* the data structure of SMRAM descriptor to describe SMRAM candidate regions
* values of state of SMRAM candidate regions
* the GUID specific data structure of HOB for reserving SMRAM regions.
This GUIDed HOB can be used to convey the existence of the T-SEG reservation and H-SEG usage
Copyright (c) 2007 - 2009, Intel Corporation Copyright (c) 2007 - 2009, Intel Corporation
All rights reserved. This program and the accompanying materials All rights reserved. This program and the accompanying materials
@ -10,8 +17,6 @@
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name: SmramMemoryReserve.h
@par Revision Reference: @par Revision Reference:
GUIDs defined in SmmCis spec version 0.9 GUIDs defined in SmmCis spec version 0.9
@ -27,42 +32,41 @@
0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \ 0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d } \
} }
// ///
// ******************************************************* /// Describes the candidate regions for SMRAM that are
// EFI_SMRAM_DESCRIPTOR /// supported by this platform.
// ******************************************************* ///
//
typedef struct { typedef struct {
EFI_PHYSICAL_ADDRESS PhysicalStart; ///< Phsyical location in DRAM EFI_PHYSICAL_ADDRESS PhysicalStart; ///< Designates the physical address of the SMRAM in memory.
EFI_PHYSICAL_ADDRESS CpuStart; ///< Address CPU uses to access the SMI handler EFI_PHYSICAL_ADDRESS CpuStart; ///< Designates the address of the SMRAM, as seen by software executing on the processors.
// May or may not match PhysicalStart UINT64 PhysicalSize; ///< Describes the number of bytes in the SMRAM region.
// UINT64 RegionState; ///< Describes the accessibility attributes of the SMRAM.
UINT64 PhysicalSize;
UINT64 RegionState;
} EFI_SMRAM_DESCRIPTOR; } EFI_SMRAM_DESCRIPTOR;
// //
// ******************************************************* // Definition of SMRAM states, used as value for EFI_SMRAM_DESCRIPTOR.RegionState.
// EFI_SMRAM_STATE
// *******************************************************
// //
#define EFI_SMRAM_OPEN 0x00000001 #define EFI_SMRAM_OPEN 0x00000001
#define EFI_SMRAM_CLOSED 0x00000002 #define EFI_SMRAM_CLOSED 0x00000002
#define EFI_SMRAM_LOCKED 0x00000004 #define EFI_SMRAM_LOCKED 0x00000004
#define EFI_CACHEABLE 0x00000008 #define EFI_CACHEABLE 0x00000008
#define EFI_ALLOCATED 0x00000010 #define EFI_ALLOCATED 0x00000010
#define EFI_NEEDS_TESTING 0x00000020
#define EFI_NEEDS_ECC_INITIALIZATION 0x00000040
// ///
// ******************************************************* /// GUID specific data structure of HOB for reserving SMRAM regions.
// EFI_SMRAM_HOB_DESCRIPTOR_BLOCK ///
// *******************************************************
//
typedef struct { typedef struct {
///
/// Designates the number of possible regions in the system
/// that can be usable for SMRAM.
///
UINTN NumberOfSmmReservedRegions; UINTN NumberOfSmmReservedRegions;
///
/// Used throughout this protocol to describe the candidate
/// regions for SMRAM that are supported by this platform.
///
EFI_SMRAM_DESCRIPTOR Descriptor[1]; EFI_SMRAM_DESCRIPTOR Descriptor[1];
} EFI_SMRAM_HOB_DESCRIPTOR_BLOCK; } EFI_HOB_SMRAM_DESCRIPTOR_BLOCK;
extern EFI_GUID gEfiSmmPeiSmramMemoryReserveGuid; extern EFI_GUID gEfiSmmPeiSmramMemoryReserveGuid;