mirror of https://github.com/acidanthera/audk.git
351 lines
9.9 KiB
C
351 lines
9.9 KiB
C
/** @file
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SRAT table parser
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Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.
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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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@par Reference(s):
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- ACPI 6.2 Specification - Errata A, September 2017
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**/
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#include <IndustryStandard/Acpi.h>
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#include <Library/PrintLib.h>
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#include <Library/UefiLib.h>
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#include "AcpiParser.h"
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#include "AcpiTableParser.h"
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// Local Variables
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STATIC CONST UINT8* SratRAType;
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STATIC CONST UINT8* SratRALength;
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STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;
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/**
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This function validates the Reserved field in the SRAT table header.
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@param [in] Ptr Pointer to the start of the field data.
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@param [in] Context Pointer to context specific information e.g. this
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could be a pointer to the ACPI table header.
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**/
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STATIC
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VOID
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EFIAPI
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ValidateSratReserved (
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IN UINT8* Ptr,
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IN VOID* Context
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);
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/**
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This function traces the APIC Proximity Domain field.
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@param [in] Format Format string for tracing the data.
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@param [in] Ptr Pointer to the start of the buffer.
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**/
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STATIC
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VOID
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EFIAPI
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DumpSratApicProximity (
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IN CONST CHAR16* Format,
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IN UINT8* Ptr
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);
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/**
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An ACPI_PARSER array describing the SRAT Table.
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**/
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STATIC CONST ACPI_PARSER SratParser[] = {
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PARSE_ACPI_HEADER (&AcpiHdrInfo),
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{L"Reserved", 4, 36, L"0x%x", NULL, NULL, ValidateSratReserved, NULL},
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{L"Reserved", 8, 40, L"0x%lx", NULL, NULL, NULL, NULL}
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};
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/**
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An ACPI_PARSER array describing the Resource Allocation structure header.
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**/
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STATIC CONST ACPI_PARSER SratResourceAllocationParser[] = {
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{L"Type", 1, 0, NULL, NULL, (VOID**)&SratRAType, NULL, NULL},
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{L"Length", 1, 1, NULL, NULL, (VOID**)&SratRALength, NULL, NULL}
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};
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/**
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An ACPI_PARSER array describing the GICC Affinity structure.
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**/
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STATIC CONST ACPI_PARSER SratGicCAffinityParser[] = {
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{L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Proximity Domain", 4, 2, L"0x%x", NULL, NULL, NULL, NULL},
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{L"ACPI Processor UID", 4, 6, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Flags", 4, 10, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Clock Domain", 4, 14, L"0x%x", NULL, NULL, NULL, NULL}
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};
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/**
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An ACPI_PARSER array describing the GIC ITS Affinity structure.
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**/
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STATIC CONST ACPI_PARSER SratGicITSAffinityParser[] = {
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{L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Proximity Domain", 4, 2, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Reserved", 2, 6, L"0x%x", NULL, NULL, NULL, NULL},
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{L"ITS Id", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},
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};
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/**
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An ACPI_PARSER array describing the Memory Affinity structure.
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**/
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STATIC CONST ACPI_PARSER SratMemAffinityParser[] = {
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{L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Proximity Domain", 4, 2, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Reserved", 2, 6, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Base Address Low", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Base Address High", 4, 12, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Length Low", 4, 16, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Length High", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Reserved", 4, 24, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Flags", 4, 28, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Reserved", 8, 32, L"0x%lx", NULL, NULL, NULL, NULL}
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};
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/**
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An ACPI_PARSER array describing the APIC/SAPIC Affinity structure.
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**/
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STATIC CONST ACPI_PARSER SratApciSapicAffinityParser[] = {
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{L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Proximity Domain [7:0]", 1, 2, L"0x%x", NULL, NULL, NULL, NULL},
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{L"APIC ID", 1, 3, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Flags", 4, 4, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Local SAPIC EID", 1, 8, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Proximity Domain [31:8]", 3, 9, L"0x%x", DumpSratApicProximity,
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NULL, NULL, NULL},
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{L"Clock Domain", 4, 12, L"0x%x", NULL, NULL, NULL, NULL}
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};
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/**
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An ACPI_PARSER array describing the Processor Local x2APIC Affinity structure.
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**/
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STATIC CONST ACPI_PARSER SratX2ApciAffinityParser[] = {
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{L"Type", 1, 0, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Length", 1, 1, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Reserved", 2, 2, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Proximity Domain", 4, 4, L"0x%x", NULL, NULL, NULL, NULL},
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{L"X2APIC ID", 4, 8, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Flags", 4, 12, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Clock Domain", 4, 16, L"0x%x", NULL, NULL, NULL, NULL},
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{L"Reserved", 4, 20, L"0x%x", NULL, NULL, NULL, NULL}
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};
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/** This function validates the Reserved field in the SRAT table header.
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@param [in] Ptr Pointer to the start of the field data.
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@param [in] Context Pointer to context specific information e.g. this
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could be a pointer to the ACPI table header.
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**/
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STATIC
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VOID
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EFIAPI
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ValidateSratReserved (
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IN UINT8* Ptr,
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IN VOID* Context
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)
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{
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if (*(UINT32*)Ptr != 1) {
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IncrementErrorCount ();
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Print (L"\nERROR: Reserved should be 1 for backward compatibility.\n");
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}
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}
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/**
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This function traces the APIC Proximity Domain field.
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@param [in] Format Format string for tracing the data.
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@param [in] Ptr Pointer to the start of the buffer.
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**/
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STATIC
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VOID
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EFIAPI
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DumpSratApicProximity (
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IN CONST CHAR16* Format,
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IN UINT8* Ptr
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)
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{
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UINT32 ProximityDomain;
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ProximityDomain = Ptr[0] | (Ptr[1] << 8) | (Ptr[2] << 16);
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Print (Format, ProximityDomain);
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}
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/**
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This function parses the ACPI SRAT table.
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When trace is enabled this function parses the SRAT table and
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traces the ACPI table fields.
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This function parses the following Resource Allocation Structures:
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- Processor Local APIC/SAPIC Affinity Structure
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- Memory Affinity Structure
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- Processor Local x2APIC Affinity Structure
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- GICC Affinity Structure
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This function also performs validation of the ACPI table fields.
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@param [in] Trace If TRUE, trace the ACPI fields.
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@param [in] Ptr Pointer to the start of the buffer.
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@param [in] AcpiTableLength Length of the ACPI table.
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@param [in] AcpiTableRevision Revision of the ACPI table.
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**/
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VOID
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EFIAPI
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ParseAcpiSrat (
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IN BOOLEAN Trace,
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IN UINT8* Ptr,
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IN UINT32 AcpiTableLength,
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IN UINT8 AcpiTableRevision
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)
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{
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UINT32 Offset;
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UINT8* ResourcePtr;
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UINT32 GicCAffinityIndex;
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UINT32 GicITSAffinityIndex;
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UINT32 MemoryAffinityIndex;
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UINT32 ApicSapicAffinityIndex;
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UINT32 X2ApicAffinityIndex;
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CHAR8 Buffer[80]; // Used for AsciiName param of ParseAcpi
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GicCAffinityIndex = 0;
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GicITSAffinityIndex = 0;
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MemoryAffinityIndex = 0;
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ApicSapicAffinityIndex = 0;
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X2ApicAffinityIndex = 0;
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if (!Trace) {
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return;
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}
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Offset = ParseAcpi (
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TRUE,
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0,
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"SRAT",
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Ptr,
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AcpiTableLength,
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PARSER_PARAMS (SratParser)
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);
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ResourcePtr = Ptr + Offset;
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while (Offset < AcpiTableLength) {
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ParseAcpi (
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FALSE,
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0,
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NULL,
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ResourcePtr,
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2, // The length is 1 byte at offset 1
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PARSER_PARAMS (SratResourceAllocationParser)
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);
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switch (*SratRAType) {
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case EFI_ACPI_6_2_GICC_AFFINITY:
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AsciiSPrint (
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Buffer,
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sizeof (Buffer),
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"GICC Affinity Structure [%d]",
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GicCAffinityIndex++
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);
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ParseAcpi (
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TRUE,
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2,
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Buffer,
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ResourcePtr,
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*SratRALength,
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PARSER_PARAMS (SratGicCAffinityParser)
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);
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break;
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case EFI_ACPI_6_2_GIC_ITS_AFFINITY:
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AsciiSPrint (
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Buffer,
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sizeof (Buffer),
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"GIC ITS Affinity Structure [%d]",
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GicITSAffinityIndex++
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);
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ParseAcpi (
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TRUE,
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2,
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Buffer,
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ResourcePtr,
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*SratRALength,
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PARSER_PARAMS (SratGicITSAffinityParser)
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);
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break;
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case EFI_ACPI_6_2_MEMORY_AFFINITY:
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AsciiSPrint (
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Buffer,
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sizeof (Buffer),
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"Memory Affinity Structure [%d]",
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MemoryAffinityIndex++
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);
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ParseAcpi (
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TRUE,
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2,
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Buffer,
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ResourcePtr,
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*SratRALength,
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PARSER_PARAMS (SratMemAffinityParser)
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);
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break;
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case EFI_ACPI_6_2_PROCESSOR_LOCAL_APIC_SAPIC_AFFINITY:
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AsciiSPrint (
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Buffer,
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sizeof (Buffer),
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"APIC/SAPIC Affinity Structure [%d]",
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ApicSapicAffinityIndex++
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);
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ParseAcpi (
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TRUE,
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2,
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Buffer,
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ResourcePtr,
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*SratRALength,
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PARSER_PARAMS (SratApciSapicAffinityParser)
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);
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break;
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case EFI_ACPI_6_2_PROCESSOR_LOCAL_X2APIC_AFFINITY:
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AsciiSPrint (
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Buffer,
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sizeof (Buffer),
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"X2APIC Affinity Structure [%d]",
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X2ApicAffinityIndex++
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);
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ParseAcpi (
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TRUE,
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2,
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Buffer,
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ResourcePtr,
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*SratRALength,
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PARSER_PARAMS (SratX2ApciAffinityParser)
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);
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break;
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default:
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IncrementErrorCount ();
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Print (L"ERROR: Unknown SRAT Affinity type = 0x%x\n", *SratRAType);
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break;
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}
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ResourcePtr += (*SratRALength);
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Offset += (*SratRALength);
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}
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}
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