Add comments to explain the reason return status is not checked. The return status...

[mirror_edk2.git] / MdeModulePkg / Universal / CapsulePei / Capsule.h

/** @file\r
\r
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions\r
of the BSD License which accompanies this distribution.  The\r
full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef _CAPSULE_PEIM_H_\r
#define _CAPSULE_PEIM_H_\r
\r
#include <PiPei.h>\r
#include <Uefi/UefiSpec.h>\r
\r
#include <Ppi/Capsule.h>\r
#include <Ppi/LoadFile.h>\r
#include <Ppi/ReadOnlyVariable2.h>\r
#include <Guid/CapsuleVendor.h>\r
\r
#include <Library/DebugLib.h>\r
#include <Library/PeimEntryPoint.h>\r
#include <Library/PeiServicesLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/HobLib.h>\r
#include <Library/PeiServicesTablePointerLib.h>\r
#include <Library/PrintLib.h>\r
#include <Library/PeCoffLib.h>\r
#include <Library/PeCoffGetEntryPointLib.h>\r
#include <Library/PcdLib.h>\r
#include <Library/ReportStatusCodeLib.h>\r
#include <IndustryStandard/PeImage.h>\r
#include "Common/CommonHeader.h"\r
\r
#ifdef MDE_CPU_IA32 \r
\r
#pragma pack(1)\r
\r
//\r
// Page-Map Level-4 Offset (PML4) and\r
// Page-Directory-Pointer Offset (PDPE) entries 4K & 2MB\r
//\r
\r
typedef union {\r
  struct {\r
    UINT64  Present:1;                // 0 = Not present in memory, 1 = Present in memory\r
    UINT64  ReadWrite:1;              // 0 = Read-Only, 1= Read/Write\r
    UINT64  UserSupervisor:1;         // 0 = Supervisor, 1=User\r
    UINT64  WriteThrough:1;           // 0 = Write-Back caching, 1=Write-Through caching\r
    UINT64  CacheDisabled:1;          // 0 = Cached, 1=Non-Cached\r
    UINT64  Accessed:1;               // 0 = Not accessed, 1 = Accessed (set by CPU)\r
    UINT64  Reserved:1;               // Reserved\r
    UINT64  MustBeZero:2;             // Must Be Zero\r
    UINT64  Available:3;              // Available for use by system software\r
    UINT64  PageTableBaseAddress:40;  // Page Table Base Address\r
    UINT64  AvabilableHigh:11;        // Available for use by system software\r
    UINT64  Nx:1;                     // No Execute bit\r
  } Bits;\r
  UINT64    Uint64;\r
} PAGE_MAP_AND_DIRECTORY_POINTER;\r
\r
//\r
// Page Table Entry 2MB\r
//\r
typedef union {\r
  struct {\r
    UINT64  Present:1;                // 0 = Not present in memory, 1 = Present in memory\r
    UINT64  ReadWrite:1;              // 0 = Read-Only, 1= Read/Write\r
    UINT64  UserSupervisor:1;         // 0 = Supervisor, 1=User\r
    UINT64  WriteThrough:1;           // 0 = Write-Back caching, 1=Write-Through caching\r
    UINT64  CacheDisabled:1;          // 0 = Cached, 1=Non-Cached\r
    UINT64  Accessed:1;               // 0 = Not accessed, 1 = Accessed (set by CPU)\r
    UINT64  Dirty:1;                  // 0 = Not Dirty, 1 = written by processor on access to page\r
    UINT64  MustBe1:1;                // Must be 1 \r
    UINT64  Global:1;                 // 0 = Not global page, 1 = global page TLB not cleared on CR3 write\r
    UINT64  Available:3;              // Available for use by system software\r
    UINT64  PAT:1;                    //\r
    UINT64  MustBeZero:8;             // Must be zero;\r
    UINT64  PageTableBaseAddress:31;  // Page Table Base Address\r
    UINT64  AvabilableHigh:11;        // Available for use by system software\r
    UINT64  Nx:1;                     // 0 = Execute Code, 1 = No Code Execution\r
  } Bits;\r
  UINT64    Uint64;\r
} PAGE_TABLE_ENTRY;\r
\r
//\r
// Page Table Entry 1GB\r
//\r
typedef union {\r
  struct {\r
    UINT64  Present:1;                // 0 = Not present in memory, 1 = Present in memory\r
    UINT64  ReadWrite:1;              // 0 = Read-Only, 1= Read/Write\r
    UINT64  UserSupervisor:1;         // 0 = Supervisor, 1=User\r
    UINT64  WriteThrough:1;           // 0 = Write-Back caching, 1=Write-Through caching\r
    UINT64  CacheDisabled:1;          // 0 = Cached, 1=Non-Cached\r
    UINT64  Accessed:1;               // 0 = Not accessed, 1 = Accessed (set by CPU)\r
    UINT64  Dirty:1;                  // 0 = Not Dirty, 1 = written by processor on access to page\r
    UINT64  MustBe1:1;                // Must be 1 \r
    UINT64  Global:1;                 // 0 = Not global page, 1 = global page TLB not cleared on CR3 write\r
    UINT64  Available:3;              // Available for use by system software\r
    UINT64  PAT:1;                    //\r
    UINT64  MustBeZero:17;            // Must be zero;\r
    UINT64  PageTableBaseAddress:22;  // Page Table Base Address\r
    UINT64  AvabilableHigh:11;        // Available for use by system software\r
    UINT64  Nx:1;                     // 0 = Execute Code, 1 = No Code Execution\r
  } Bits;\r
  UINT64    Uint64;\r
} PAGE_TABLE_1G_ENTRY;\r
\r
#pragma pack()\r
\r
typedef\r
EFI_STATUS\r
(*COALESCE_ENTRY) (\r
  IN EFI_PEI_SERVICES                **PeiServices,\r
  IN EFI_CAPSULE_BLOCK_DESCRIPTOR    *BlockList,\r
  IN OUT VOID                        **MemoryBase,\r
  IN OUT UINTN                       *MemorySize\r
  );\r
\r
#endif\r
\r
#endif\r