| 1 | /* |
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| 2 | * hal_kentry.S - Entry points into the kernel (traps, interrupts, syscalls) |
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| 3 | * |
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| 4 | * Copyright (c) 2017 Maxime Villard |
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| 5 | * |
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| 6 | * This file is part of ALMOS-MKH. |
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| 7 | * |
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| 8 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 9 | * under the terms of the GNU General Public License as published by |
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| 10 | * the Free Software Foundation; version 2.0 of the License. |
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| 11 | * |
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| 12 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU General Public License |
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| 18 | * along with ALMOS-MKH.; if not, write to the Free Software Foundation, |
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| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |
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| 22 | #define x86_ASM |
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| 23 | #include <hal_boot.h> |
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| 24 | #include <hal_kentry.h> |
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| 25 | |
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| 26 | #define TRAPENTRY(a) \ |
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| 27 | pushq $(a); \ |
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| 28 | jmp alltraps; |
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| 29 | |
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| 30 | #define ZTRAPENTRY(a) \ |
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| 31 | pushq $0; \ |
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| 32 | TRAPENTRY(a) |
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| 33 | |
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| 34 | .text |
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| 35 | .globl hal_trap_entry |
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| 36 | .type hal_trap_entry, @function |
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| 37 | |
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| 38 | ASM_ENTRY(x86_trap00) |
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| 39 | ZTRAPENTRY(T_DIVIDE) |
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| 40 | |
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| 41 | ASM_ENTRY(x86_trap01) |
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| 42 | ZTRAPENTRY(T_TRCTRAP) |
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| 43 | |
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| 44 | ASM_ENTRY(x86_trap02) |
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| 45 | ZTRAPENTRY(T_NMI) |
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| 46 | |
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| 47 | ASM_ENTRY(x86_trap03) |
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| 48 | ZTRAPENTRY(T_BPTFLT) |
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| 49 | |
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| 50 | ASM_ENTRY(x86_trap04) |
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| 51 | ZTRAPENTRY(T_OFLOW) |
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| 52 | |
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| 53 | ASM_ENTRY(x86_trap05) |
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| 54 | ZTRAPENTRY(T_BOUND) |
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| 55 | |
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| 56 | ASM_ENTRY(x86_trap06) |
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| 57 | ZTRAPENTRY(T_PRIVINFLT) |
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| 58 | |
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| 59 | ASM_ENTRY(x86_trap07) |
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| 60 | ZTRAPENTRY(T_DNA) |
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| 61 | |
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| 62 | ASM_ENTRY(x86_trap08) |
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| 63 | TRAPENTRY(T_DOUBLEFLT) |
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| 64 | |
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| 65 | ASM_ENTRY(x86_trap09) |
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| 66 | ZTRAPENTRY(T_FPOPFLT) |
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| 67 | |
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| 68 | ASM_ENTRY(x86_trap0a) |
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| 69 | TRAPENTRY(T_TSSFLT) |
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| 70 | |
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| 71 | ASM_ENTRY(x86_trap0b) |
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| 72 | ZTRAPENTRY(T_SEGNPFLT) |
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| 73 | |
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| 74 | ASM_ENTRY(x86_trap0c) |
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| 75 | ZTRAPENTRY(T_STKFLT) |
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| 76 | |
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| 77 | ASM_ENTRY(x86_trap0d) |
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| 78 | ZTRAPENTRY(T_PROTFLT) |
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| 79 | |
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| 80 | ASM_ENTRY(x86_trap0e) |
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| 81 | TRAPENTRY(T_PAGEFLT) |
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| 82 | |
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| 83 | ASM_ENTRY(x86_trap0f) |
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| 84 | ZTRAPENTRY(T_ASTFLT) |
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| 85 | |
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| 86 | ASM_ENTRY(x86_trap10) |
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| 87 | ZTRAPENTRY(T_ARITHTRAP) |
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| 88 | |
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| 89 | ASM_ENTRY(x86_trap11) |
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| 90 | TRAPENTRY(T_ALIGNFLT) |
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| 91 | |
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| 92 | ASM_ENTRY(x86_trap12) |
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| 93 | ZTRAPENTRY(T_MCA) |
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| 94 | |
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| 95 | ASM_ENTRY(x86_trap13) |
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| 96 | ZTRAPENTRY(T_XMM) |
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| 97 | |
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| 98 | ASM_ENTRY(x86_trap14) |
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| 99 | ASM_ENTRY(x86_trap15) |
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| 100 | ASM_ENTRY(x86_trap16) |
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| 101 | ASM_ENTRY(x86_trap17) |
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| 102 | ASM_ENTRY(x86_trap18) |
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| 103 | ASM_ENTRY(x86_trap19) |
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| 104 | ASM_ENTRY(x86_trap1a) |
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| 105 | ASM_ENTRY(x86_trap1b) |
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| 106 | ASM_ENTRY(x86_trap1c) |
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| 107 | ASM_ENTRY(x86_trap1d) |
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| 108 | ASM_ENTRY(x86_trap1e) |
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| 109 | ASM_ENTRY(x86_trap1f) |
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| 110 | /* 20 - 31 reserved for future exp */ |
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| 111 | ZTRAPENTRY(T_RESERVED) |
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| 112 | |
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| 113 | /* |
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| 114 | * Arguments pushed on the stack: |
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| 115 | * tf_trapno |
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| 116 | * tf_err: Dummy inserted if not defined |
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| 117 | * tf_rip |
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| 118 | * tf_cs |
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| 119 | * tf_rflags |
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| 120 | * tf_rsp |
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| 121 | * tf_ss |
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| 122 | */ |
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| 123 | alltraps: |
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| 124 | movq %rsp,%rdi |
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| 125 | call hal_trap_entry |
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| 126 | /* NOTREACHED */ |
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| 127 | |
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| 128 | .data |
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| 129 | .globl x86_traps |
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| 130 | .type x86_traps, @object |
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| 131 | |
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| 132 | .align 64 |
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| 133 | x86_traps: |
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| 134 | .quad x86_trap00, x86_trap01 |
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| 135 | .quad x86_trap02, x86_trap03 |
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| 136 | .quad x86_trap04, x86_trap05 |
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| 137 | .quad x86_trap06, x86_trap07 |
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| 138 | .quad x86_trap08, x86_trap09 |
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| 139 | .quad x86_trap0a, x86_trap0b |
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| 140 | .quad x86_trap0c, x86_trap0d |
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| 141 | .quad x86_trap0e, x86_trap0f |
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| 142 | .quad x86_trap10, x86_trap11 |
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| 143 | .quad x86_trap12, x86_trap13 |
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| 144 | .quad x86_trap14, x86_trap15 |
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| 145 | .quad x86_trap16, x86_trap17 |
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| 146 | .quad x86_trap18, x86_trap19 |
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| 147 | .quad x86_trap1a, x86_trap1b |
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| 148 | .quad x86_trap1c, x86_trap1d |
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| 149 | .quad x86_trap1e, x86_trap1f |
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| 150 | |
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