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Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Include/IndustryStandard/DmaRemappingReportingTable.h | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/MdePkg/Include/IndustryStandard/DmaRemappingReportingTable.h b/MdePkg/Include/IndustryStandard/DmaRemappingReportingTable.h new file mode 100644 index 0000000000..a4a7e000e1 --- /dev/null +++ b/MdePkg/Include/IndustryStandard/DmaRemappingReportingTable.h @@ -0,0 +1,261 @@ +/** @file
+ DMA Remapping Reporting (DMAR) ACPI table definition from Intel(R)
+ Virtualization Technology for Directed I/O (VT-D) Architecture Specification.
+
+ Copyright (c) 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.
+
+ @par Revision Reference:
+ - Intel(R) Virtualization Technology for Directed I/O (VT-D) Architecture
+ Specification v2.4, Dated June 2016.
+ 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_
+
+#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
+///@}
+
+///
+/// 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.
+ - Bits[7:2] Reserved.
+ **/
+ UINT8 Flags;
+ UINT8 Reserved[10];
+} EFI_ACPI_DMAR_HEADER;
+
+#pragma pack()
+
+#endif
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