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800 | palkovsky | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | #ifndef __ia32_INTERRUPT_H__ |
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30 | #define __ia32_INTERRUPT_H__ |
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31 | |||
32 | #include <arch/types.h> |
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33 | #include <arch/pm.h> |
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34 | |||
35 | #define IVT_ITEMS IDT_ITEMS |
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36 | |||
37 | #define EXC_COUNT 32 |
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38 | #define IRQ_COUNT 16 |
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39 | |||
40 | #define IVT_EXCBASE 0 |
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41 | #define IVT_IRQBASE (IVT_EXCBASE+EXC_COUNT) |
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42 | #define IVT_FREEBASE (IVT_IRQBASE+IRQ_COUNT) |
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43 | |||
44 | #define IRQ_CLK 0 |
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45 | #define IRQ_KBD 1 |
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46 | #define IRQ_PIC1 2 |
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47 | #define IRQ_PIC_SPUR 7 |
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48 | |||
49 | /* this one must have four least significant bits set to ones */ |
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50 | #define VECTOR_APIC_SPUR (IVT_ITEMS-1) |
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51 | |||
52 | #if (((VECTOR_APIC_SPUR + 1)%16) || VECTOR_APIC_SPUR >= IVT_ITEMS) |
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53 | #error Wrong definition of VECTOR_APIC_SPUR |
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54 | #endif |
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55 | |||
1072 | palkovsky | 56 | #define VECTOR_DEBUG 1 |
800 | palkovsky | 57 | #define VECTOR_PIC_SPUR (IVT_IRQBASE+IRQ_PIC_SPUR) |
58 | #define VECTOR_CLK (IVT_IRQBASE+IRQ_CLK) |
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59 | #define VECTOR_KBD (IVT_IRQBASE+IRQ_KBD) |
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60 | |||
61 | #define VECTOR_TLB_SHOOTDOWN_IPI (IVT_FREEBASE+0) |
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62 | #define VECTOR_WAKEUP_IPI (IVT_FREEBASE+1) |
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1077 | palkovsky | 63 | #define VECTOR_DEBUG_IPI (IVT_FREEBASE+2) |
800 | palkovsky | 64 | |
958 | jermar | 65 | /** This is passed to interrupt handlers */ |
66 | struct istate { |
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67 | __u64 rax; |
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68 | __u64 rbx; |
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69 | __u64 rcx; |
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70 | __u64 rdx; |
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71 | __u64 rsi; |
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72 | __u64 rdi; |
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73 | __u64 r8; |
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74 | __u64 r9; |
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75 | __u64 r10; |
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76 | __u64 r11; |
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77 | __u64 r12; |
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78 | __u64 r13; |
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79 | __u64 r14; |
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80 | __u64 r15; |
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81 | __u64 rbp; |
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1021 | jermar | 82 | __u64 error_word; |
83 | __u64 rip; |
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84 | __u64 cs; |
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85 | __u64 rflags; |
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86 | __u64 stack[]; /* Additional data on stack */ |
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87 | }; |
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958 | jermar | 88 | |
1595 | palkovsky | 89 | /** Return true if exception happened while in userspace */ |
90 | static inline int istate_from_uspace(istate_t *istate) |
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91 | { |
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92 | return !(istate->rip & 0x8000000000000000); |
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93 | } |
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94 | |||
1288 | jermar | 95 | static inline void istate_set_retaddr(istate_t *istate, __address retaddr) |
96 | { |
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97 | istate->rip = retaddr; |
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98 | } |
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1595 | palkovsky | 99 | static inline __native istate_get_pc(istate_t *istate) |
100 | { |
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101 | return istate->rip; |
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102 | } |
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1288 | jermar | 103 | |
800 | palkovsky | 104 | extern void (* disable_irqs_function)(__u16 irqmask); |
105 | extern void (* enable_irqs_function)(__u16 irqmask); |
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106 | extern void (* eoi_function)(void); |
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107 | |||
1051 | jermar | 108 | extern void print_info_errcode(int n, istate_t *istate); |
958 | jermar | 109 | extern void null_interrupt(int n, istate_t *istate); |
110 | extern void gp_fault(int n, istate_t *istate); |
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111 | extern void nm_fault(int n, istate_t *istate); |
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112 | extern void ss_fault(int n, istate_t *istate); |
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113 | extern void page_fault(int n, istate_t *istate); |
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114 | extern void syscall(int n, istate_t *istate); |
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115 | extern void tlb_shootdown_ipi(int n, istate_t *istate); |
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800 | palkovsky | 116 | |
117 | extern void trap_virtual_enable_irqs(__u16 irqmask); |
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118 | extern void trap_virtual_disable_irqs(__u16 irqmask); |
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119 | extern void trap_virtual_eoi(void); |
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1050 | palkovsky | 120 | /* AMD64 - specific page handler */ |
121 | extern void ident_page_fault(int n, istate_t *istate); |
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800 | palkovsky | 122 | |
123 | #endif |