kitten/include/arch-x86_64/idt_vectors.h

   1 #ifndef _ARCH_X86_64_IDT_VECTORS_H
   2 #define _ARCH_X86_64_IDT_VECTORS_H
   3
   4 /*
   5  * Based on linux/include/asm-x86_64/hw_irq.h
   6  * Original file header:
   7  *     (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
   8  *     moved some of the old arch/i386/kernel/irq.h to here. VY
   9  *     IRQ/IPI changes taken from work by Thomas Radke
  10  *     <tomsoft@informatik.tu-chemnitz.de>
  11  *     hacked by Andi Kleen for x86-64.
  12  */
  13
  14 /**
  15  * This file defines symbolic names for interrupt vectors installed in the
  16  * Interrupt Descriptor Table (IDT). The IDT contains entries for 256 interrupt
  17  * vectors.  Vectors [0,31] are used for specific purposes defined by the x86_64
  18  * architecture.  Vectors [32,255] are available for external interrupts. The
  19  * LWK uses a number of interrupt vectors for its own internal purposes, e.g.,
  20  * inter-processor interrupts for TLB invalidations.
  21  */
  22
  23 /*
  24  * [0,31] Standard x86_64 architecture vectors
  25  */
  26 #define DIVIDE_ERROR_VECTOR                     0
  27 #define DEBUG_VECTOR                            1
  28 #define NMI_VECTOR                              2
  29 #define INT3_VECTOR                             3
  30 #define OVERFLOW_VECTOR                         4
  31 #define BOUNDS_VECTOR                           5
  32 #define INVALID_OP_VECTOR                       6
  33 #define DEVICE_NOT_AVAILABLE_VECTOR             7
  34 #define DOUBLE_FAULT_VECTOR                     8
  35 #define COPROC_SEGMENT_OVERRUN_VECTOR           9
  36 #define INVALID_TSS_VECTOR                      10
  37 #define SEGMENT_NOT_PRESENT_VECTOR              11
  38 #define STACK_SEGMENT_VECTOR                    12
  39 #define GENERAL_PROTECTION_VECTOR               13
  40 #define PAGE_FAULT_VECTOR                       14
  41 #define SPURIOUS_INTERRUPT_BUG_VECTOR           15
  42 #define COPROCESSOR_ERROR_VECTOR                16
  43 #define ALIGNMENT_CHECK_VECTOR                  17
  44 #define MACHINE_CHECK_VECTOR                    18
  45 #define SIMD_COPROCESSOR_ERROR_VECTOR           19
  46 /*
  47  * [20,31] Reserved by x86_64 architecture for future use
  48  * [32,47] Free for use by devices
  49  * [48,63] Standard ISA IRQs
  50  */
  51 #define IRQ0_VECTOR                             48
  52 #define IRQ1_VECTOR                             49
  53 #define IRQ2_VECTOR                             50
  54 #define IRQ3_VECTOR                             51
  55 #define IRQ4_VECTOR                             52
  56 #define IRQ5_VECTOR                             53
  57 #define IRQ6_VECTOR                             54
  58 #define IRQ7_VECTOR                             55
  59 #define IRQ8_VECTOR                             56
  60 #define IRQ9_VECTOR                             57
  61 #define IRQ10_VECTOR                            58
  62 #define IRQ11_VECTOR                            59
  63 #define IRQ12_VECTOR                            60
  64 #define IRQ13_VECTOR                            61
  65 #define IRQ14_VECTOR                            62
  66 #define IRQ15_VECTOR                            63
  67 /*
  68  * [64,238]  Free for use by devices
  69  * [239,255] Used by LWK for various internal purposes
  70  */
  71 #define APIC_TIMER_VECTOR                       239
  72 #define INVALIDATE_TLB_0_VECTOR                 240
  73 #define INVALIDATE_TLB_1_VECTOR                 241
  74 #define INVALIDATE_TLB_2_VECTOR                 242
  75 #define INVALIDATE_TLB_3_VECTOR                 243
  76 #define INVALIDATE_TLB_4_VECTOR                 244
  77 #define INVALIDATE_TLB_5_VECTOR                 245
  78 #define INVALIDATE_TLB_6_VECTOR                 246
  79 #define INVALIDATE_TLB_7_VECTOR                 247
  80 /* 248 is available */
  81 #define APIC_PERF_COUNTER_VECTOR                249
  82 #define APIC_THERMAL_VECTOR                     250
  83 /* 251 is available */
  84 #define XCALL_FUNCTION_VECTOR                   252
  85 #define XCALL_RESCHEDULE_VECTOR                 253
  86 #define APIC_ERROR_VECTOR                       254
  87 #define APIC_SPURIOUS_VECTOR                    255
  88
  89 /**
  90  * Meta-defines describing the interrupt vector space defined above.
  91  */
  92 #define NUM_IDT_ENTRIES                         256
  93 #define FIRST_EXTERNAL_VECTOR                   32
  94 #define FIRST_SYSTEM_VECTOR                     239
  95 #define INVALIDATE_TLB_VECTOR_START             240
  96 #define INVALIDATE_TLB_VECTOR_END               247
  97 #define NUM_INVALIDATE_TLB_VECTORS              8
  98
  99 #endif