KernelLand/Kernel/arch/x86/include/mptable.h

   1 /*
   2  * Acess2 Kernel (x86 Port)
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * include/mptable.h
   6  * - MPTable definitions
   7  */
   8
   9 #define MPPTR_IDENT     ('_'|('M'<<8)|('P'<<16)|('_'<<24))
  10 #define MPTABLE_IDENT   ('P'|('C'<<8)|('M'<<16)|('P'<<24))
  11
  12 typedef struct sMPInfo {
  13         Uint32  Sig;    // '_MP_'
  14         Uint32  MPConfig;
  15         Uint8   Length;
  16         Uint8   Version;
  17         Uint8   Checksum;
  18         Uint8   Features[5];    // 2-4 are unused
  19 } tMPInfo;
  20
  21 typedef union uMPTable_Ent {
  22         Uint8   Type;
  23         struct {
  24                 Uint8   Type;
  25                 Uint8   APICID;
  26                 Uint8   APICVer;
  27                 Uint8   CPUFlags;       // bit 0: Enabled, bit 1: Boot Processor
  28                 Uint32  CPUSignature;   // Stepping, Model, Family
  29                 Uint32  FeatureFlags;
  30                 Uint32  Reserved[2];
  31         } __attribute__((packed))       Proc;   // 0x00
  32         struct {
  33                 Uint8   Type;
  34                 Uint8   ID;
  35                 char    TypeString[6];
  36         } __attribute__((packed))       Bus;    // 0x01
  37         struct {
  38                 Uint8   Type;
  39                 Uint8   ID;
  40                 Uint8   Version;
  41                 Uint8   Flags;  // bit 0: Enabled
  42                 Uint32  Addr;
  43         } __attribute__((packed))       IOAPIC; // 0x02
  44         struct {
  45                 Uint8   Type;
  46                 Uint8   IntType;
  47                 Uint16  Flags;  // 0,1: Polarity, 2,3: Trigger Mode
  48                 Uint8   SourceBusID;
  49                 Uint8   SourceBusIRQ;
  50                 Uint8   DestAPICID;
  51                 Uint8   DestAPICIRQ;
  52         } __attribute__((packed))       IOInt;
  53         struct {
  54                 Uint8   Type;
  55                 Uint8   IntType;
  56                 Uint16  Flags;  // 0,1: Polarity, 2,3: Trigger Mode
  57                 Uint8   SourceBusID;
  58                 Uint8   SourceBusIRQ;
  59                 Uint8   DestLocalAPICID;
  60                 Uint8   DestLocalAPICIRQ;
  61         } __attribute__((packed))       LocalInt;
  62 } __attribute__((packed)) tMPTable_Ent;
  63
  64 typedef struct sMPTable {
  65         Uint32  Sig;
  66         Uint16  BaseTableLength;
  67         Uint8   SpecRev;
  68         Uint8   Checksum;
  69
  70         char    OemID[8];
  71         char    ProductID[12];
  72
  73         Uint32  OEMTablePtr;
  74         Uint16  OEMTableSize;
  75         Uint16  EntryCount;
  76
  77         Uint32  LocalAPICMemMap;        //!< Address used to access the local APIC
  78         Uint16  ExtendedTableLen;
  79         Uint8   ExtendedTableChecksum;
  80         Uint8   Reserved;
  81
  82         tMPTable_Ent    Entries[];
  83 } tMPTable;