OvmfPkg/AcpiTables/Madt.aslc

   1 /** @file
   2   MADT Table
   3
   4   This file contains a structure definition for the ACPI 1.0 Multiple APIC
   5   Description Table (MADT).
   6
   7   Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
   8   This program and the accompanying materials are
   9   licensed and made available under the terms and conditions of the BSD License
  10   which accompanies this distribution.  The full text of the license may be found at
  11   http://opensource.org/licenses/bsd-license.php
  12
  13   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  14   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  15
  16 **/
  17
  18 #include <IndustryStandard/Acpi.h>
  19 #include <Platform.h>
  20
  21 //
  22 // Local APIC address
  23 //
  24 #define EFI_ACPI_LOCAL_APIC_ADDRESS 0xFEE00000 // TBD
  25
  26 //
  27 // Multiple APIC Flags are defined in AcpiX.0.h
  28 //
  29 #define EFI_ACPI_1_0_MULTIPLE_APIC_FLAGS (EFI_ACPI_1_0_PCAT_COMPAT)
  30
  31 //
  32 // Define the number of each table type.
  33 // This is where the table layout is modified.
  34 //
  35 #define EFI_ACPI_PROCESSOR_LOCAL_APIC_COUNT           1
  36 #define EFI_ACPI_INTERRUPT_SOURCE_OVERRIDE_COUNT      2
  37 #define EFI_ACPI_IO_APIC_COUNT                        1
  38
  39 //
  40 // Ensure proper structure formats
  41 //
  42 #pragma pack (1)
  43
  44 //
  45 // ACPI 1.0 MADT structure
  46 //
  47 typedef struct {
  48   EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER   Header;
  49
  50 #if EFI_ACPI_PROCESSOR_LOCAL_APIC_COUNT > 0
  51   EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE           LocalApic[EFI_ACPI_PROCESSOR_LOCAL_APIC_COUNT];
  52 #endif
  53
  54 #if EFI_ACPI_INTERRUPT_SOURCE_OVERRIDE_COUNT > 0
  55   EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE      Iso[EFI_ACPI_INTERRUPT_SOURCE_OVERRIDE_COUNT];
  56 #endif
  57
  58 #if EFI_ACPI_IO_APIC_COUNT > 0
  59   EFI_ACPI_1_0_IO_APIC_STRUCTURE                        IoApic[EFI_ACPI_IO_APIC_COUNT];
  60 #endif
  61
  62 } EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE;
  63
  64 #pragma pack ()
  65
  66 //
  67 // Multiple APIC Description Table
  68 //
  69 EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE Madt = {
  70   {
  71     {
  72       EFI_ACPI_1_0_APIC_SIGNATURE,
  73       sizeof (EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE),
  74       EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION,
  75       0x00,                                                     // Checksum will be updated at runtime
  76       {EFI_ACPI_OEM_ID},
  77       EFI_ACPI_OEM_TABLE_ID,
  78       EFI_ACPI_OEM_REVISION,
  79       EFI_ACPI_CREATOR_ID,
  80       EFI_ACPI_CREATOR_REVISION
  81     },
  82
  83     //
  84     // MADT specific fields
  85     //
  86     EFI_ACPI_LOCAL_APIC_ADDRESS,
  87     EFI_ACPI_1_0_MULTIPLE_APIC_FLAGS,
  88   },
  89
  90   //
  91   // Processor Local APIC Structure
  92   //
  93   {
  94     {
  95       EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC,                        // Type
  96       sizeof (EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE),     // Length
  97       0x00,                                                     // Processor ID
  98       0x00,                                                     // Local APIC ID
  99       0x00000001                                                // Flags - Enabled by default
 100     }
 101   },
 102
 103   //
 104   // Interrupt Source Override Structure
 105   //
 106
 107   {
 108     {
 109       //
 110       // IRQ0=>IRQ2 Interrupt Source Override Structure
 111       //
 112       EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE,                   // Type
 113       sizeof (EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE),// Length
 114       0x00,                                                     // Bus - ISA
 115       0x00,                                                     // Source - IRQ0
 116       0x00000002,                                               // Global System Interrupt - IRQ2
 117       0x0000                                                    // Flags - Conforms to specifications of the bus
 118     },
 119
 120     {
 121       //
 122       // ISO (SCI Active High) Interrupt Source Override Structure
 123       //
 124       EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE,                   // Type
 125       sizeof (EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE),// Length
 126       0x00,                                                     // Bus - ISA
 127       0x09,                                                     // Source - IRQ0
 128       0x00000009,                                               // Global System Interrupt - IRQ2
 129       0x000D                                                    // Flags - Level-tiggered, Active High
 130     }
 131   },
 132
 133   //
 134   // IO APIC Structure
 135   //
 136   {
 137     {
 138       EFI_ACPI_1_0_IO_APIC,                                     // Type
 139       sizeof (EFI_ACPI_1_0_IO_APIC_STRUCTURE),                  // Length
 140       0x02,                                                     // IO APIC ID
 141       EFI_ACPI_RESERVED_BYTE,                                   // Reserved
 142       0xFEC00000,                                               // IO APIC Address (physical)
 143       0x00000000                                                // Global System Interrupt Base
 144     }
 145   },
 146 };
 147
 148
 149 VOID*
 150 ReferenceAcpiTable (
 151   VOID
 152   )
 153 {
 154   //
 155   // Reference the table being generated to prevent the optimizer from removing the
 156   // data structure from the exeutable
 157   //
 158   return (VOID*)&Madt;
 159 }