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1 | jermar | 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 | #include <arch/interrupt.h> |
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712 | decky | 30 | #include <syscall/syscall.h> |
1 | jermar | 31 | #include <print.h> |
68 | decky | 32 | #include <debug.h> |
1 | jermar | 33 | #include <panic.h> |
34 | #include <arch/i8259.h> |
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35 | #include <func.h> |
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36 | #include <cpu.h> |
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37 | #include <arch/asm.h> |
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5 | jermar | 38 | #include <mm/tlb.h> |
703 | jermar | 39 | #include <mm/as.h> |
22 | jermar | 40 | #include <arch.h> |
268 | palkovsky | 41 | #include <symtab.h> |
391 | jermar | 42 | #include <proc/thread.h> |
1 | jermar | 43 | |
44 | /* |
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45 | * Interrupt and exception dispatching. |
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46 | */ |
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47 | |||
48 | void (* disable_irqs_function)(__u16 irqmask) = NULL; |
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49 | void (* enable_irqs_function)(__u16 irqmask) = NULL; |
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50 | void (* eoi_function)(void) = NULL; |
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51 | |||
576 | palkovsky | 52 | #define PRINT_INFO_ERRCODE(st) { \ |
53 | __native *x = (__native *) st; \ |
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54 | char *symbol = get_symtab_entry(x[1]); \ |
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268 | palkovsky | 55 | if (!symbol) \ |
56 | symbol = ""; \ |
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57 | printf("----------------EXCEPTION OCCURED----------------\n"); \ |
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58 | printf("%%eip: %X (%s)\n",x[1],symbol); \ |
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59 | printf("ERROR_WORD=%X\n", x[0]); \ |
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60 | printf("%%cs=%X,flags=%X\n", x[2], x[3]); \ |
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61 | printf("%%eax=%X, %%ebx=%X, %%ecx=%X, %%edx=%X\n",\ |
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62 | x[-2],x[-5],x[-3],x[-4]); \ |
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63 | printf("%%esi=%X, %%edi=%X, %%ebp=%X, %%esp=%X\n",\ |
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64 | x[-8],x[-9],x[-1],x); \ |
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65 | printf("stack: %X, %X, %X, %X\n", x[4], x[5], x[6], x[7]); \ |
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66 | printf(" %X, %X, %X, %X\n", x[8], x[9], x[10], x[11]); \ |
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67 | } |
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68 | |||
576 | palkovsky | 69 | void null_interrupt(int n, void *st) |
1 | jermar | 70 | { |
576 | palkovsky | 71 | __native *stack = (__native *) st; |
1 | jermar | 72 | |
73 | printf("int %d: null_interrupt\n", n); |
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74 | printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]); |
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75 | panic("unserviced interrupt\n"); |
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76 | } |
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77 | |||
576 | palkovsky | 78 | void gp_fault(int n, void *stack) |
1 | jermar | 79 | { |
268 | palkovsky | 80 | PRINT_INFO_ERRCODE(stack); |
168 | jermar | 81 | panic("general protection fault\n"); |
1 | jermar | 82 | } |
83 | |||
576 | palkovsky | 84 | void ss_fault(int n, void *stack) |
84 | vana | 85 | { |
268 | palkovsky | 86 | PRINT_INFO_ERRCODE(stack); |
103 | jermar | 87 | panic("stack fault\n"); |
84 | vana | 88 | } |
89 | |||
90 | |||
576 | palkovsky | 91 | void nm_fault(int n, void *stack) |
73 | vana | 92 | { |
458 | decky | 93 | #ifdef CONFIG_FPU_LAZY |
309 | palkovsky | 94 | scheduler_fpu_lazy_request(); |
95 | #else |
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96 | panic("fpu fault"); |
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97 | #endif |
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73 | vana | 98 | } |
99 | |||
100 | |||
101 | |||
576 | palkovsky | 102 | void page_fault(int n, void *stack) |
1 | jermar | 103 | { |
703 | jermar | 104 | __address page; |
105 | |||
106 | page = read_cr2(); |
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107 | if (!as_page_fault(page)) { |
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108 | PRINT_INFO_ERRCODE(stack); |
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109 | printf("page fault address: %X\n", page); |
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110 | panic("page fault\n"); |
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111 | } |
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1 | jermar | 112 | } |
113 | |||
712 | decky | 114 | void syscall(int n, void *st) |
1 | jermar | 115 | { |
712 | decky | 116 | __native *stack = (__native *) st; |
117 | |||
118 | if (stack[-2] < SYSCALL_END) |
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119 | syscall_table[stack[-2]](stack[-5], stack[-3], stack[-4]); |
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120 | else |
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121 | panic("Undefined syscall %d", stack[-2]); |
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1 | jermar | 122 | } |
123 | |||
576 | palkovsky | 124 | void tlb_shootdown_ipi(int n, void *stack) |
5 | jermar | 125 | { |
126 | trap_virtual_eoi(); |
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6 | jermar | 127 | tlb_shootdown_ipi_recv(); |
5 | jermar | 128 | } |
129 | |||
576 | palkovsky | 130 | void wakeup_ipi(int n, void *stack) |
7 | jermar | 131 | { |
132 | trap_virtual_eoi(); |
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133 | } |
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134 | |||
1 | jermar | 135 | void trap_virtual_enable_irqs(__u16 irqmask) |
136 | { |
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137 | if (enable_irqs_function) |
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138 | enable_irqs_function(irqmask); |
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139 | else |
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68 | decky | 140 | panic("no enable_irqs_function\n"); |
1 | jermar | 141 | } |
142 | |||
143 | void trap_virtual_disable_irqs(__u16 irqmask) |
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144 | { |
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145 | if (disable_irqs_function) |
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146 | disable_irqs_function(irqmask); |
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147 | else |
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68 | decky | 148 | panic("no disable_irqs_function\n"); |
1 | jermar | 149 | } |
150 | |||
151 | void trap_virtual_eoi(void) |
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152 | { |
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153 | if (eoi_function) |
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154 | eoi_function(); |
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155 | else |
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68 | decky | 156 | panic("no eoi_function\n"); |
1 | jermar | 157 | |
158 | } |