BaseTools/Source/C/Include/IndustryStandard/MemoryMappedConfigurationSpaceAccessTable.h

   1 /** @file
   2   ACPI memory mapped configuration space access table definition, defined at
   3   in the PCI Firmware Specification, version 3.0 draft version 0.5.
   4   Specification is available at http://www.pcisig.com.
   5
   6   Copyright (c) 2006 - 2008, Intel Corporation.  All rights reserved.
   7
   8   This program and the accompanying materials are licensed and made available
   9   under the terms and conditions of the BSD License which accompanies this
  10   distribution.  The full text of the license may be found at:
  11     http://opensource.org/licenses/bsd-license.php
  12
  13   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  14   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  15
  16   File Name: MemoryMappedConfigurationSpaceAccessTable.h
  17
  18 **/
  19
  20 #ifndef _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
  21 #define _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
  22
  23 //
  24 // Ensure proper structure formats
  25 //
  26 #pragma pack(1)
  27 //
  28 // Memory Mapped Configuration Space Access Table (MCFG)
  29 // This table is a basic description table header followed by
  30 // a number of base address allocation structures.
  31 //
  32 typedef struct {
  33   UINT64  BaseAddress;
  34   UINT16  PciSegmentGroupNumber;
  35   UINT8   StartBusNumber;
  36   UINT8   EndBusNumber;
  37   UINT32  Reserved;
  38 } EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE;
  39
  40 //
  41 // MCFG Revision (defined in spec)
  42 //
  43 #define EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION  0x01
  44
  45 #pragma pack()
  46
  47 #endif