| 1 | /** @file
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| 2 | MADT Table
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| 3 |
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| 4 | This file contains a structure definition for the ACPI 1.0 Multiple APIC
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| 5 | Description Table (MADT).
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| 6 |
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| 7 | Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
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| 8 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 9 |
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| 10 | **/
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| 11 |
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| 12 | #include <IndustryStandard/Acpi.h>
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| 13 | #include <Platform.h>
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| 14 |
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| 15 | //
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| 16 | // Local APIC address
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| 17 | //
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| 18 | #define EFI_ACPI_LOCAL_APIC_ADDRESS 0xFEE00000 // TBD
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| 19 |
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| 20 | //
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| 21 | // Multiple APIC Flags are defined in AcpiX.0.h
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| 22 | //
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| 23 | #define EFI_ACPI_1_0_MULTIPLE_APIC_FLAGS (EFI_ACPI_1_0_PCAT_COMPAT)
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| 24 |
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| 25 | //
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| 26 | // Define the number of each table type.
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| 27 | // This is where the table layout is modified.
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| 28 | //
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| 29 | #define EFI_ACPI_PROCESSOR_LOCAL_APIC_COUNT 1
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| 30 | #define EFI_ACPI_INTERRUPT_SOURCE_OVERRIDE_COUNT 2
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| 31 | #define EFI_ACPI_IO_APIC_COUNT 1
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| 32 |
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| 33 | //
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| 34 | // Ensure proper structure formats
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| 35 | //
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| 36 | #pragma pack (1)
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| 37 |
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| 38 | //
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| 39 | // ACPI 1.0 MADT structure
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| 40 | //
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| 41 | typedef struct {
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| 42 | EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER Header;
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| 43 |
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| 44 | #if EFI_ACPI_PROCESSOR_LOCAL_APIC_COUNT > 0
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| 45 | EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE LocalApic[EFI_ACPI_PROCESSOR_LOCAL_APIC_COUNT];
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| 46 | #endif
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| 47 |
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| 48 | #if EFI_ACPI_INTERRUPT_SOURCE_OVERRIDE_COUNT > 0
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| 49 | EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE Iso[EFI_ACPI_INTERRUPT_SOURCE_OVERRIDE_COUNT];
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| 50 | #endif
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| 51 |
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| 52 | #if EFI_ACPI_IO_APIC_COUNT > 0
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| 53 | EFI_ACPI_1_0_IO_APIC_STRUCTURE IoApic[EFI_ACPI_IO_APIC_COUNT];
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| 54 | #endif
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| 55 |
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| 56 | } EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE;
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| 57 |
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| 58 | #pragma pack ()
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| 59 |
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| 60 | //
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| 61 | // Multiple APIC Description Table
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| 62 | //
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| 63 | EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE Madt = {
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| 64 | {
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| 65 | {
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| 66 | EFI_ACPI_1_0_APIC_SIGNATURE,
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| 67 | sizeof (EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE),
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| 68 | EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION,
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| 69 | 0x00, // Checksum will be updated at runtime
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| 70 | {EFI_ACPI_OEM_ID},
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| 71 | EFI_ACPI_OEM_TABLE_ID,
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| 72 | EFI_ACPI_OEM_REVISION,
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| 73 | EFI_ACPI_CREATOR_ID,
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| 74 | EFI_ACPI_CREATOR_REVISION
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| 75 | },
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| 76 |
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| 77 | //
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| 78 | // MADT specific fields
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| 79 | //
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| 80 | EFI_ACPI_LOCAL_APIC_ADDRESS,
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| 81 | EFI_ACPI_1_0_MULTIPLE_APIC_FLAGS,
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| 82 | },
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| 83 |
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| 84 | //
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| 85 | // Processor Local APIC Structure
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| 86 | //
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| 87 | {
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| 88 | {
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| 89 | EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC, // Type
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| 90 | sizeof (EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE), // Length
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| 91 | 0x00, // Processor ID
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| 92 | 0x00, // Local APIC ID
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| 93 | 0x00000001 // Flags - Enabled by default
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| 94 | }
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| 95 | },
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| 96 |
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| 97 | //
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| 98 | // Interrupt Source Override Structure
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| 99 | //
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| 100 |
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| 101 | {
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| 102 | {
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| 103 | //
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| 104 | // IRQ0=>IRQ2 Interrupt Source Override Structure
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| 105 | //
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| 106 | EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE, // Type
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| 107 | sizeof (EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE),// Length
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| 108 | 0x00, // Bus - ISA
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| 109 | 0x00, // Source - IRQ0
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| 110 | 0x00000002, // Global System Interrupt - IRQ2
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| 111 | 0x0000 // Flags - Conforms to specifications of the bus
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| 112 | },
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| 113 |
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| 114 | {
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| 115 | //
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| 116 | // ISO (SCI Active High) Interrupt Source Override Structure
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| 117 | //
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| 118 | EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE, // Type
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| 119 | sizeof (EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE),// Length
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| 120 | 0x00, // Bus - ISA
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| 121 | 0x09, // Source - IRQ0
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| 122 | 0x00000009, // Global System Interrupt - IRQ2
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| 123 | 0x000D // Flags - Level-tiggered, Active High
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| 124 | }
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| 125 | },
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| 126 |
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| 127 | //
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| 128 | // IO APIC Structure
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| 129 | //
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| 130 | {
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| 131 | {
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| 132 | EFI_ACPI_1_0_IO_APIC, // Type
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| 133 | sizeof (EFI_ACPI_1_0_IO_APIC_STRUCTURE), // Length
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| 134 | 0x02, // IO APIC ID
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| 135 | EFI_ACPI_RESERVED_BYTE, // Reserved
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| 136 | 0xFEC00000, // IO APIC Address (physical)
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| 137 | 0x00000000 // Global System Interrupt Base
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| 138 | }
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| 139 | },
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| 140 | };
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| 141 |
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| 142 |
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| 143 | VOID*
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| 144 | ReferenceAcpiTable (
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| 145 | VOID
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| 146 | )
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| 147 | {
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| 148 | //
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| 149 | // Reference the table being generated to prevent the optimizer from removing the
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| 150 | // data structure from the exeutable
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| 151 | //
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| 152 | return (VOID*)&Madt;
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| 153 | }
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