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 - 2014, Intel Corporation. All rights reserved.<BR>
   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 **/
  17
  18 #ifndef _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
  19 #define _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
  20
  21 //
  22 // Ensure proper structure formats
  23 //
  24 #pragma pack(1)
  25 //
  26 // Memory Mapped Configuration Space Access Table (MCFG)
  27 // This table is a basic description table header followed by
  28 // a number of base address allocation structures.
  29 //
  30 typedef struct {
  31   UINT64  BaseAddress;
  32   UINT16  PciSegmentGroupNumber;
  33   UINT8   StartBusNumber;
  34   UINT8   EndBusNumber;
  35   UINT32  Reserved;
  36 } EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE;
  37
  38 //
  39 // MCFG Revision (defined in spec)
  40 //
  41 #define EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION  0x01
  42
  43 #pragma pack()
  44
  45 #endif