EdkCompatibilityPkg/Foundation/Framework/Guid/SmramMemoryReserve/SmramMemoryReserve.h

   1 /*++
   2
   3 Copyright (c) 1999 - 2002, Intel Corporation. All rights reserved.<BR>
   4 This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12
  13 Module Name:
  14
  15   SmramMemoryReserve.h
  16
  17 Abstract:
  18
  19   GUID for use in reserving SMRAM regions.
  20
  21 --*/
  22
  23 #ifndef _EFI_SMM_PEI_SMRAM_MEMORY_RESERVE_H_
  24 #define _EFI_SMM_PEI_SMRAM_MEMORY_RESERVE_H_
  25
  26 #define EFI_SMM_PEI_SMRAM_MEMORY_RESERVE \
  27   { \
  28     0x6dadf1d1, 0xd4cc, 0x4910, {0xbb, 0x6e, 0x82, 0xb1, 0xfd, 0x80, 0xff, 0x3d} \
  29   }
  30
  31 //
  32 // *******************************************************
  33 //  EFI_SMRAM_DESCRIPTOR
  34 // *******************************************************
  35 //
  36 typedef struct {
  37   EFI_PHYSICAL_ADDRESS  PhysicalStart;  // Phsyical location in DRAM
  38   EFI_PHYSICAL_ADDRESS  CpuStart;       // Address CPU uses to access the SMI handler
  39   // May or may not match PhysicalStart
  40   //
  41   UINT64                PhysicalSize;
  42   UINT64                RegionState;
  43 } EFI_SMRAM_DESCRIPTOR;
  44
  45 //
  46 // *******************************************************
  47 //  EFI_SMRAM_STATE
  48 // *******************************************************
  49 //
  50 #define EFI_SMRAM_OPEN                0x00000001
  51 #define EFI_SMRAM_CLOSED              0x00000002
  52 #define EFI_SMRAM_LOCKED              0x00000004
  53 #define EFI_CACHEABLE                 0x00000008
  54 #define EFI_ALLOCATED                 0x00000010
  55 #define EFI_NEEDS_TESTING             0x00000020
  56 #define EFI_NEEDS_ECC_INITIALIZATION  0x00000040
  57
  58 //
  59 // *******************************************************
  60 //  EFI_SMRAM_HOB_DESCRIPTOR_BLOCK
  61 // *******************************************************
  62 //
  63 typedef struct {
  64   UINT32                NumberOfSmmReservedRegions;
  65   EFI_SMRAM_DESCRIPTOR  Descriptor[1];
  66 } EFI_SMRAM_HOB_DESCRIPTOR_BLOCK;
  67
  68 extern EFI_GUID gEfiSmmPeiSmramMemoryReserve;
  69
  70 #endif