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   EFI_ACPI_1_0_APIC_SIGNATURE,
  71   sizeof (EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE),
  72   EFI_ACPI_1_0_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION,
  73   0x00,                                                     // Checksum will be updated at runtime
  74   EFI_ACPI_OEM_ID,
  75   EFI_ACPI_OEM_TABLE_ID,
  76   EFI_ACPI_OEM_REVISION,
  77   EFI_ACPI_CREATOR_ID,
  78   EFI_ACPI_CREATOR_REVISION,
  79
  80   //
  81   // MADT specific fields
  82   //
  83   EFI_ACPI_LOCAL_APIC_ADDRESS,
  84   EFI_ACPI_1_0_MULTIPLE_APIC_FLAGS,
  85
  86   //
  87   // Processor Local APIC Structure
  88   //
  89
  90   EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC,                        // Type
  91   sizeof (EFI_ACPI_1_0_PROCESSOR_LOCAL_APIC_STRUCTURE),     // Length
  92   0x00,                                                     // Processor ID
  93   0x00,                                                     // Local APIC ID
  94   0x00000001,                                               // Flags - Enabled by default
  95
  96   //
  97   // Interrupt Source Override Structure
  98   //
  99
 100   //
 101   // IRQ0=>IRQ2 Interrupt Source Override Structure
 102   //
 103   EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE,                   // Type
 104   sizeof (EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE),// Length
 105   0x00,                                                     // Bus - ISA
 106   0x00,                                                     // Source - IRQ0
 107   0x00000002,                                               // Global System Interrupt - IRQ2
 108   0x0000,                                                   // Flags - Conforms to specifications of the bus
 109
 110   //
 111   // ISO (SCI Active High) Interrupt Source Override Structure
 112   //
 113   EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE,                   // Type
 114   sizeof (EFI_ACPI_1_0_INTERRUPT_SOURCE_OVERRIDE_STRUCTURE),// Length
 115   0x00,                                                     // Bus - ISA
 116   0x09,                                                     // Source - IRQ0
 117   0x00000009,                                               // Global System Interrupt - IRQ2
 118   0x000D,                                                   // Flags - Level-tiggered, Active High
 119
 120   //
 121   // IO APIC Structure
 122   //
 123   EFI_ACPI_1_0_IO_APIC,                                     // Type
 124   sizeof (EFI_ACPI_1_0_IO_APIC_STRUCTURE),                  // Length
 125   0x02,                                                     // IO APIC ID
 126   EFI_ACPI_RESERVED_BYTE,                                   // Reserved
 127   0xFEC00000,                                               // IO APIC Address (physical)
 128   0x00000000                                                // Global System Interrupt Base
 129 };
 130
 131
 132 VOID*
 133 ReferenceAcpiTable (
 134   VOID
 135   )
 136 {
 137   //
 138   // Reference the table being generated to prevent the optimizer from removing the
 139   // data structure from the exeutable
 140   //
 141   return (VOID*)&Madt;
 142 }