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/** @file
ACPI memory mapped configuration space access table definition, defined at
in the PCI Firmware Specification, version 3.0.
Specification is available at http://www.pcisig.com.
Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
#define _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
#include <IndustryStandard/Acpi.h>
//
// Ensure proper structure formats
//
#pragma pack(1)
///
/// Memory Mapped Configuration Space Access Table (MCFG)
/// This table is a basic description table header followed by
/// a number of base address allocation structures.
///
typedef struct {
UINT64 BaseAddress;
UINT16 PciSegmentGroupNumber;
UINT8 StartBusNumber;
UINT8 EndBusNumber;
UINT32 Reserved;
} EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE;
///
/// MCFG Table header definition. The rest of the table
/// must be defined in a platform specific manner.
///
typedef struct {
EFI_ACPI_DESCRIPTION_HEADER Header;
UINT64 Reserved;
} EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER;
///
/// MCFG Revision (defined in spec)
///
#define EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION 0x01
#pragma pack()
#endif
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