mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-27 12:15:19 +01:00
264 lines
10 KiB
C
264 lines
10 KiB
C
/** @file
|
|
DMA Remapping Reporting (DMAR) ACPI table definition from Intel(R)
|
|
Virtualization Technology for Directed I/O (VT-D) Architecture Specification.
|
|
|
|
Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
@par Revision Reference:
|
|
- Intel(R) Virtualization Technology for Directed I/O (VT-D) Architecture
|
|
Specification v2.5, Dated November 2017.
|
|
http://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/vt-directed-io-spec.pdf
|
|
|
|
@par Glossary:
|
|
- HPET - High Precision Event Timer
|
|
- NUMA - Non-uniform Memory Access
|
|
**/
|
|
#ifndef _DMA_REMAPPING_REPORTING_TABLE_H_
|
|
#define _DMA_REMAPPING_REPORTING_TABLE_H_
|
|
|
|
#include <IndustryStandard/Acpi.h>
|
|
|
|
#pragma pack(1)
|
|
|
|
///
|
|
/// DMA-Remapping Reporting Structure definitions from section 8.1
|
|
///@{
|
|
#define EFI_ACPI_DMAR_REVISION 0x01
|
|
|
|
#define EFI_ACPI_DMAR_FLAGS_INTR_REMAP BIT0
|
|
#define EFI_ACPI_DMAR_FLAGS_X2APIC_OPT_OUT BIT1
|
|
#define EFI_ACPI_DMAR_FLAGS_DMA_CTRL_PLATFORM_OPT_IN_FLAG BIT2
|
|
///@}
|
|
|
|
///
|
|
/// Remapping Structure Types definitions from section 8.2
|
|
///@{
|
|
#define EFI_ACPI_DMAR_TYPE_DRHD 0x00
|
|
#define EFI_ACPI_DMAR_TYPE_RMRR 0x01
|
|
#define EFI_ACPI_DMAR_TYPE_ATSR 0x02
|
|
#define EFI_ACPI_DMAR_TYPE_RHSA 0x03
|
|
#define EFI_ACPI_DMAR_TYPE_ANDD 0x04
|
|
///@}
|
|
|
|
///
|
|
/// DMA-Remapping Hardware Unit definitions from section 8.3
|
|
///
|
|
#define EFI_ACPI_DMAR_DRHD_FLAGS_INCLUDE_PCI_ALL BIT0
|
|
|
|
///
|
|
/// DMA-Remapping Device Scope Entry Structure definitions from section 8.3.1
|
|
///@{
|
|
#define EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_ENDPOINT 0x01
|
|
#define EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_PCI_BRIDGE 0x02
|
|
#define EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_IOAPIC 0x03
|
|
#define EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_MSI_CAPABLE_HPET 0x04
|
|
#define EFI_ACPI_DEVICE_SCOPE_ENTRY_TYPE_ACPI_NAMESPACE_DEVICE 0x05
|
|
///@}
|
|
|
|
///
|
|
/// Root Port ATS Capability Reporting Structure definitions from section 8.5
|
|
///
|
|
#define EFI_ACPI_DMAR_ATSR_FLAGS_ALL_PORTS BIT0
|
|
|
|
///
|
|
/// Definition for DMA Remapping Structure Header
|
|
///
|
|
typedef struct {
|
|
UINT16 Type;
|
|
UINT16 Length;
|
|
} EFI_ACPI_DMAR_STRUCTURE_HEADER;
|
|
|
|
///
|
|
/// Definition for DMA-Remapping PCI Path
|
|
///
|
|
typedef struct {
|
|
UINT8 Device;
|
|
UINT8 Function;
|
|
} EFI_ACPI_DMAR_PCI_PATH;
|
|
|
|
///
|
|
/// Device Scope Structure is defined in section 8.3.1
|
|
///
|
|
typedef struct {
|
|
UINT8 Type;
|
|
UINT8 Length;
|
|
UINT16 Reserved2;
|
|
UINT8 EnumerationId;
|
|
UINT8 StartBusNumber;
|
|
} EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER;
|
|
|
|
/**
|
|
DMA-remapping hardware unit definition (DRHD) structure is defined in
|
|
section 8.3. This uniquely represents a remapping hardware unit present
|
|
in the platform. There must be at least one instance of this structure
|
|
for each PCI segment in the platform.
|
|
**/
|
|
typedef struct {
|
|
EFI_ACPI_DMAR_STRUCTURE_HEADER Header;
|
|
/**
|
|
- Bit[0]: INCLUDE_PCI_ALL
|
|
- If Set, this remapping hardware unit has under its scope all
|
|
PCI compatible devices in the specified Segment, except devices
|
|
reported under the scope of other remapping hardware units for
|
|
the same Segment.
|
|
- If Clear, this remapping hardware unit has under its scope only
|
|
devices in the specified Segment that are explicitly identified
|
|
through the DeviceScope field.
|
|
- Bits[7:1] Reserved.
|
|
**/
|
|
UINT8 Flags;
|
|
UINT8 Reserved;
|
|
///
|
|
/// The PCI Segment associated with this unit.
|
|
///
|
|
UINT16 SegmentNumber;
|
|
///
|
|
/// Base address of remapping hardware register-set for this unit.
|
|
///
|
|
UINT64 RegisterBaseAddress;
|
|
} EFI_ACPI_DMAR_DRHD_HEADER;
|
|
|
|
/**
|
|
Reserved Memory Region Reporting Structure (RMRR) is described in section 8.4
|
|
Reserved memory ranges that may be DMA targets may be reported through the
|
|
RMRR structures, along with the devices that requires access to the specified
|
|
reserved memory region.
|
|
**/
|
|
typedef struct {
|
|
EFI_ACPI_DMAR_STRUCTURE_HEADER Header;
|
|
UINT8 Reserved[2];
|
|
///
|
|
/// PCI Segment Number associated with devices identified through
|
|
/// the Device Scope field.
|
|
///
|
|
UINT16 SegmentNumber;
|
|
///
|
|
/// Base address of 4KB-aligned reserved memory region
|
|
///
|
|
UINT64 ReservedMemoryRegionBaseAddress;
|
|
/**
|
|
Last address of the reserved memory region. Value in this field must be
|
|
greater than the value in Reserved Memory Region Base Address field.
|
|
The reserved memory region size (Limit - Base + 1) must be an integer
|
|
multiple of 4KB.
|
|
**/
|
|
UINT64 ReservedMemoryRegionLimitAddress;
|
|
} EFI_ACPI_DMAR_RMRR_HEADER;
|
|
|
|
/**
|
|
Root Port ATS Capability Reporting (ATSR) structure is defined in section 8.5.
|
|
This structure is applicable only for platforms supporting Device-TLBs as
|
|
reported through the Extended Capability Register. For each PCI Segment in
|
|
the platform that supports Device-TLBs, BIOS provides an ATSR structure. The
|
|
ATSR structures identifies PCI-Express Root-Ports supporting Address
|
|
Translation Services (ATS) transactions. Software must enable ATS on endpoint
|
|
devices behind a Root Port only if the Root Port is reported as supporting
|
|
ATS transactions.
|
|
**/
|
|
typedef struct {
|
|
EFI_ACPI_DMAR_STRUCTURE_HEADER Header;
|
|
/**
|
|
- Bit[0]: ALL_PORTS:
|
|
- If Set, indicates all PCI Express Root Ports in the specified
|
|
PCI Segment supports ATS transactions.
|
|
- If Clear, indicates ATS transactions are supported only on
|
|
Root Ports identified through the Device Scope field.
|
|
- Bits[7:1] Reserved.
|
|
**/
|
|
UINT8 Flags;
|
|
UINT8 Reserved;
|
|
///
|
|
/// The PCI Segment associated with this ATSR structure
|
|
///
|
|
UINT16 SegmentNumber;
|
|
} EFI_ACPI_DMAR_ATSR_HEADER;
|
|
|
|
/**
|
|
Remapping Hardware Static Affinity (RHSA) is an optional structure defined
|
|
in section 8.6. This is intended to be used only on NUMA platforms with
|
|
Remapping hardware units and memory spanned across multiple nodes.
|
|
When used, there must be a RHSA structure for each Remapping hardware unit
|
|
reported through DRHD structure.
|
|
**/
|
|
typedef struct {
|
|
EFI_ACPI_DMAR_STRUCTURE_HEADER Header;
|
|
UINT8 Reserved[4];
|
|
///
|
|
/// Register Base Address of this Remap hardware unit reported in the
|
|
/// corresponding DRHD structure.
|
|
///
|
|
UINT64 RegisterBaseAddress;
|
|
///
|
|
/// Proximity Domain to which the Remap hardware unit identified by the
|
|
/// Register Base Address field belongs.
|
|
///
|
|
UINT32 ProximityDomain;
|
|
} EFI_ACPI_DMAR_RHSA_HEADER;
|
|
|
|
/**
|
|
An ACPI Name-space Device Declaration (ANDD) structure is defined in section
|
|
8.7 and uniquely represents an ACPI name-space enumerated device capable of
|
|
issuing DMA requests in the platform. ANDD structures are used in conjunction
|
|
with Device-Scope entries of type ACPI_NAMESPACE_DEVICE.
|
|
**/
|
|
typedef struct {
|
|
EFI_ACPI_DMAR_STRUCTURE_HEADER Header;
|
|
UINT8 Reserved[3];
|
|
/**
|
|
Each ACPI device enumerated through an ANDD structure must have a unique
|
|
value for this field. To report an ACPI device with ACPI Device Number
|
|
value of X, under the scope of a DRHD unit, a Device-Scope entry of type
|
|
ACPI_NAMESPACE_DEVICE is used with value of X in the Enumeration ID field.
|
|
The Start Bus Number and Path fields in the Device-Scope together
|
|
provides the 16-bit source-id allocated by platform for the ACPI device.
|
|
**/
|
|
UINT8 AcpiDeviceNumber;
|
|
} EFI_ACPI_DMAR_ANDD_HEADER;
|
|
|
|
/**
|
|
DMA Remapping Reporting Structure Header as defined in section 8.1
|
|
This header will be followed by list of Remapping Structures listed below
|
|
- DMA Remapping Hardware Unit Definition (DRHD)
|
|
- Reserved Memory Region Reporting (RMRR)
|
|
- Root Port ATS Capability Reporting (ATSR)
|
|
- Remapping Hardware Static Affinity (RHSA)
|
|
- ACPI Name-space Device Declaration (ANDD)
|
|
These structure types must by reported in numerical order.
|
|
i.e., All remapping structures of type 0 (DRHD) enumerated before remapping
|
|
structures of type 1 (RMRR), and so forth.
|
|
**/
|
|
typedef struct {
|
|
EFI_ACPI_DESCRIPTION_HEADER Header;
|
|
/**
|
|
This field indicates the maximum DMA physical addressability supported by
|
|
this platform. The system address map reported by the BIOS indicates what
|
|
portions of this addresses are populated. The Host Address Width (HAW) of
|
|
the platform is computed as (N+1), where N is the value reported in this
|
|
field.
|
|
For example, for a platform supporting 40 bits of physical addressability,
|
|
the value of 100111b is reported in this field.
|
|
**/
|
|
UINT8 HostAddressWidth;
|
|
/**
|
|
- Bit[0]: INTR_REMAP - If Clear, the platform does not support interrupt
|
|
remapping. If Set, the platform supports interrupt remapping.
|
|
- Bit[1]: X2APIC_OPT_OUT - For firmware compatibility reasons, platform
|
|
firmware may Set this field to request system software to opt
|
|
out of enabling Extended xAPIC (X2APIC) mode. This field is
|
|
valid only when the INTR_REMAP field (bit 0) is Set.
|
|
- Bit[2]: DMA_CTRL_PLATFORM_OPT_IN_FLAG - Platform firmware is
|
|
recommended to Set this field to report any platform initiated
|
|
DMA is restricted to only reserved memory regions (reported in
|
|
RMRR structures) when transferring control to system software
|
|
such as on ExitBootServices().
|
|
- Bits[7:3] Reserved.
|
|
**/
|
|
UINT8 Flags;
|
|
UINT8 Reserved[10];
|
|
} EFI_ACPI_DMAR_HEADER;
|
|
|
|
#pragma pack()
|
|
|
|
#endif
|