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/** @file
This code defines ACPI DMA Remapping table related definitions.
See the System Agent BIOS specification for definition of the table.
Copyright (c) 1999 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _DMA_REMAPPING_TABLE_H_
#define _DMA_REMAPPING_TABLE_H_
#include <Uefi.h>
#include <Base.h>
#include <IndustryStandard/Acpi30.h>
#pragma pack(1)
///
/// DMAR table signature
///
#define EFI_ACPI_VTD_DMAR_TABLE_SIGNATURE 0x52414D44 ///< "DMAR"
#define EFI_ACPI_DMAR_TABLE_REVISION 1
#define EFI_ACPI_DRHD_ENGINE_HEADER_LENGTH 0x10
#define EFI_ACPI_RMRR_HEADER_LENGTH 0x18
#define MAX_PCI_DEPTH 5
typedef struct {
UINT8 Type;
UINT8 Length;
UINT16 Reserved;
UINT8 EnumId;
UINT8 StartBusNumber;
UINT8 PciPath[2]; ///< device, function
} EFI_ACPI_DEV_SCOPE_STRUCTURE;
typedef struct {
UINT16 Type;
UINT16 Length;
UINT8 Flags;
UINT8 Reserved;
UINT16 SegmentNum;
EFI_PHYSICAL_ADDRESS RegisterBaseAddress;
EFI_ACPI_DEV_SCOPE_STRUCTURE DeviceScope[1];
} EFI_ACPI_DRHD_ENGINE1_STRUCT;
typedef struct {
UINT16 Type;
UINT16 Length;
UINT8 Flags;
UINT8 Reserved;
UINT16 SegmentNum;
EFI_PHYSICAL_ADDRESS RegisterBaseAddress;
EFI_ACPI_DEV_SCOPE_STRUCTURE DeviceScope[2];
} EFI_ACPI_DRHD_ENGINE2_STRUCT;
typedef struct {
UINT16 Type;
UINT16 Length;
UINT16 Reserved;
UINT16 SegmentNum;
EFI_PHYSICAL_ADDRESS RmrBaseAddress;
EFI_PHYSICAL_ADDRESS RmrLimitAddress;
EFI_ACPI_DEV_SCOPE_STRUCTURE DeviceScope[2];
} EFI_ACPI_RMRR_USB_STRUC;
typedef struct {
UINT16 Type;
UINT16 Length;
UINT16 Reserved;
UINT16 SegmentNum;
EFI_PHYSICAL_ADDRESS RmrBaseAddress;
EFI_PHYSICAL_ADDRESS RmrLimitAddress;
EFI_ACPI_DEV_SCOPE_STRUCTURE DeviceScope[1]; ///< IGD
} EFI_ACPI_RMRR_IGD_STRUC;
typedef struct {
UINT16 Type;
UINT16 Length;
UINT8 Reserved[3];
UINT8 AcpiDeviceNumber;
UINT8 AcpiObjectName[20];
} EFI_ACPI_ANDD_STRUC;
typedef struct {
EFI_ACPI_DESCRIPTION_HEADER Header;
UINT8 HostAddressWidth;
UINT8 Flags;
UINT8 Reserved[10];
EFI_ACPI_DRHD_ENGINE1_STRUCT DrhdEngine1;
EFI_ACPI_DRHD_ENGINE2_STRUCT DrhdEngine2;
EFI_ACPI_RMRR_USB_STRUC RmrrUsb;
EFI_ACPI_RMRR_IGD_STRUC RmrrIgd;
} EFI_ACPI_DMAR_TABLE;
#pragma pack()
#endif
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