/** @file
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Protocol used to support ACPI VT-d DMA remapping reporting
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@copyright
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Copyright 2006 - 2021 Intel Corporation. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __DMA_REMAP_H__
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#define __DMA_REMAP_H__
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//
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// Protocol for GUID.
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//
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typedef struct _DMA_REMAP_PROTOCOL DMA_REMAP_PROTOCOL;
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#define DRHD_SIGNATURE (('D'<<24) + ('R'<<16) + ('H'<<8) + 'D')
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#define RMRR_SIGNATURE (('R'<<24) + ('M'<<16) + ('R'<<8) + 'R')
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#define ATSR_SIGNATURE (('A'<<24) + ('T'<<16) + ('S'<<8) + 'R')
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#define RHSA_SIGNATURE (('A'<<24) + ('S'<<16) + ('H'<<8) + 'R')
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#define ANDD_SIGNATURE (('A'<<24) + ('N'<<16) + ('D'<<8) + 'D')
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typedef enum {
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DrhdType,
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RmrrType,
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AtsrType,
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RhsaType
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} REMAP_TYPE;
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typedef enum {
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PciEndpoint = 1,
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PciBridge = 2
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} PCI_DEV_TYPE;
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typedef struct {
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UINT8 Device;
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UINT8 Function;
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} PCI_NODE;
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typedef struct {
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UINT8 DeviceType;
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UINT8 EnumerationID;
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UINT8 StartBusNumber;
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PCI_NODE *PciNode;
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} DEVICE_SCOPE;
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typedef struct {
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UINT32 Signature;
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UINT8 Flags;
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UINT16 SegmentNumber;
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UINT64 RegisterBase;
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UINTN DeviceScopeNumber;
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DEVICE_SCOPE *DeviceScope;
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} DMAR_DRHD;
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typedef struct {
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UINT32 Signature;
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UINT16 SegmentNumber;
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UINT64 RsvdMemBase;
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UINT64 RsvdMemLimit;
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UINTN DeviceScopeNumber;
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DEVICE_SCOPE *DeviceScope;
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} DMAR_RMRR;
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typedef struct {
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UINT32 Signature;
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UINT8 Flags;
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UINT16 SegmentNumber;
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UINTN DeviceScopeNumber;
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UINT32 ATSRPresentBit;
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DEVICE_SCOPE *DeviceScope;
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} DMAR_ATSR;
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typedef struct {
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UINT32 Signature;
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UINT64 RegisterBase;
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UINT32 Domian;
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UINT16 RhsaCount;
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} DMAR_RHSA;
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typedef
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EFI_STATUS
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(EFIAPI *INSERT_DMA_REMAP) (
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IN DMA_REMAP_PROTOCOL *This,
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IN REMAP_TYPE RemapType,
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IN VOID *RemapEntry
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);
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typedef
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EFI_STATUS
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(EFIAPI *GET_DMAR_TABLE) (
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IN DMA_REMAP_PROTOCOL *This,
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IN VOID **DmarTable
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);
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typedef struct _DMA_REMAP_PROTOCOL {
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BOOLEAN VTdSupport;
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BOOLEAN DmaCtrlOptIn;
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BOOLEAN InterruptRemap;
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BOOLEAN X2ApicOptOut;
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BOOLEAN ATS;
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INSERT_DMA_REMAP InsertDmaRemap;
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GET_DMAR_TABLE GetDmarTable;
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} DMA_REMAP_PROTOCOL;
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extern EFI_GUID gDmaRemapProtocolGuid;
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#endif
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