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54 lines
1.7 KiB
54 lines
1.7 KiB
4 years ago
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/** @file
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ACPI memory mapped configuration space access table definition, defined at
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in the PCI Firmware Specification, version 3.0.
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Specification is available at http://www.pcisig.com.
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Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
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#define _MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_H_
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//
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// Ensure proper structure formats
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//
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#pragma pack(1)
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///
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/// Memory Mapped Configuration Space Access Table (MCFG)
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/// This table is a basic description table header followed by
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/// a number of base address allocation structures.
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///
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typedef struct {
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UINT64 BaseAddress;
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UINT16 PciSegmentGroupNumber;
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UINT8 StartBusNumber;
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UINT8 EndBusNumber;
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UINT32 Reserved;
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} EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE;
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///
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/// MCFG Table header definition. The rest of the table
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/// must be defined in a platform specific manner.
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///
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typedef struct {
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EFI_ACPI_DESCRIPTION_HEADER Header;
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UINT64 Reserved;
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} EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER;
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///
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/// MCFG Revision (defined in spec)
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///
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#define EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION 0x01
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#pragma pack()
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#endif
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