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mp.h

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+// See MultiProcessor Specification Version 1.[14]
+
+struct mp {             // floating pointer
+    uchar signature[4];           // "_MP_"
+    void *physaddr;               // phys addr of MP config table
+    uchar length;                 // 1
+    uchar specrev;                // [14]
+    uchar checksum;               // all bytes must add up to 0
+    uchar type;                   // MP system config type
+    uchar imcrp;
+    uchar reserved[3];
+};
+
+struct mpconf {         // configuration table header
+    uchar signature[4];           // "PCMP"
+    ushort length;                // total table length
+    uchar version;                // [14]
+    uchar checksum;               // all bytes must add up to 0
+    uchar product[20];            // product id
+    uint *oemtable;               // OEM table pointer
+    ushort oemlength;             // OEM table length
+    ushort entry;                 // entry count
+    uint *lapicaddr;              // address of local APIC
+    ushort xlength;               // extended table length
+    uchar xchecksum;              // extended table checksum
+    uchar reserved;
+};
+
+struct mpproc {         // processor table entry
+    uchar type;                   // entry type (0)
+    uchar apicid;                 // local APIC id
+    uchar version;                // local APIC verison
+    uchar flags;                  // CPU flags
+    #define MPBOOT 0x02           // This proc is the bootstrap processor.
+    uchar signature[4];           // CPU signature
+    uint feature;                 // feature flags from CPUID instruction
+    uchar reserved[8];
+};
+
+struct mpioapic {       // I/O APIC table entry
+    uchar type;                   // entry type (2)
+    uchar apicno;                 // I/O APIC id
+    uchar version;                // I/O APIC version
+    uchar flags;                  // I/O APIC flags
+    uint *addr;                  // I/O APIC address
+};
+
+// Table entry types
+#define MPPROC    0x00  // One per processor
+#define MPBUS     0x01  // One per bus
+#define MPIOAPIC  0x02  // One per I/O APIC
+#define MPIOINTR  0x03  // One per bus interrupt source
+#define MPLINTR   0x04  // One per system interrupt source
+
+
+