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[mirror_edk2.git] / MdePkg / Include / IndustryStandard / MemoryMappedConfigurationSpaceAccessTable.h
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42eedea9 1/** @file\r
9095d37b 2 ACPI memory mapped configuration space access table definition, defined at\r
000f6a28 3 in the PCI Firmware Specification, version 3.0.\r
568eb0cb 4 Specification is available at http://www.pcisig.com.\r
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5\r
6 Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r
9344f092 7 SPDX-License-Identifier: BSD-2-Clause-Patent\r
568eb0cb 8**/\r
9\r
10#ifndef _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_\r
11#define _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_\r
12\r
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13#include <IndustryStandard/Acpi.h>\r
14\r
766f4bc1 15//\r
16// Ensure proper structure formats\r
17//\r
18#pragma pack(1)\r
19\r
1bc5d021 20///\r
21/// Memory Mapped Configuration Space Access Table (MCFG)\r
22/// This table is a basic description table header followed by\r
23/// a number of base address allocation structures.\r
24///\r
568eb0cb 25typedef struct {\r
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26 UINT64 BaseAddress;\r
27 UINT16 PciSegmentGroupNumber;\r
28 UINT8 StartBusNumber;\r
29 UINT8 EndBusNumber;\r
30 UINT32 Reserved;\r
568eb0cb 31} EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE;\r
1bc5d021 32\r
33///\r
9095d37b 34/// MCFG Table header definition. The rest of the table\r
1bc5d021 35/// must be defined in a platform specific manner.\r
36///\r
3431f363 37typedef struct {\r
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38 EFI_ACPI_DESCRIPTION_HEADER Header;\r
39 UINT64 Reserved;\r
3431f363 40} EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER;\r
1bc5d021 41\r
42///\r
43/// MCFG Revision (defined in spec)\r
44///\r
568eb0cb 45#define EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION 0x01\r
46\r
766f4bc1 47#pragma pack()\r
48\r
568eb0cb 49#endif\r