projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 99032c45 | 1 | #------------------------------------------------------------------------------\r |
| 2 | #*\r | |
| fee4cb81 | 3 | #* Copyright 2006 - 2010, Intel Corporation \r |
| 99032c45 | 4 | #* All rights reserved. This program and the accompanying materials \r |
| 5 | #* are licensed and made available under the terms and conditions of the BSD License \r | |
| 6 | #* which accompanies this distribution. The full text of the license may be found at \r | |
| 7 | #* http://opensource.org/licenses/bsd-license.php \r | |
| 8 | #* \r | |
| 9 | #* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
| 10 | #* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
| 11 | #* \r | |
| 12 | #* CpuInterrupt.S\r | |
| 13 | #* \r | |
| 14 | #* Abstract:\r | |
| 15 | #*\r | |
| 16 | #------------------------------------------------------------------------------\r | |
| 17 | \r | |
| 18 | #PUBLIC SystemTimerHandler\r | |
| 19 | #PUBLIC SystemExceptionHandler\r | |
| 20 | #EXTERNDEF mExceptionCodeSize:DWORD\r | |
| 21 | \r | |
| 22 | #EXTERN TimerHandler: NEAR\r | |
| 23 | #EXTERN ExceptionHandler: NEAR\r | |
| 24 | #EXTERN mTimerVector: DWORD\r | |
| 25 | \r | |
| b29a823d | 26 | .data\r |
| 27 | ASM_GLOBAL ASM_PFX(mExceptionCodeSize)\r | |
| 99032c45 | 28 | ASM_PFX(mExceptionCodeSize): .long 9\r |
| 29 | \r | |
| b29a823d | 30 | .text\r |
| 31 | ASM_GLOBAL ASM_PFX(InitDescriptor)\r | |
| 99032c45 | 32 | \r |
| 33 | ASM_PFX(InitDescriptor):\r | |
| 34 | movq $GDT_BASE,%rax # EAX=PHYSICAL address of gdt\r | |
| 35 | movq %rax, gdtr + 2 # Put address of gdt into the gdtr\r | |
| 36 | lgdt gdtr\r | |
| 37 | movq $0x18, %rax\r | |
| 38 | movq %rax, %gs\r | |
| 39 | movq %rax, %fs\r | |
| 40 | movq $IDT_BASE,%rax # EAX=PHYSICAL address of idt\r | |
| 41 | movq %rax, idtr + 2 # Put address of idt into the idtr\r | |
| 42 | lidt idtr\r | |
| 43 | ret\r | |
| 44 | \r | |
| 45 | # VOID\r | |
| 46 | # InstallInterruptHandler (\r | |
| 47 | # UINTN Vector,\r | |
| 48 | # VOID (*Handler)(VOID)\r | |
| 49 | # )\r | |
| b29a823d | 50 | ASM_GLOBAL ASM_PFX(InstallInterruptHandler)\r |
| 99032c45 | 51 | ASM_PFX(InstallInterruptHandler):\r |
| 52 | # Vector:DWORD @ 4(%esp)\r | |
| 53 | # Handler:DWORD @ 8(%esp)\r | |
| 54 | push %rbx\r | |
| 55 | pushfq # save eflags\r | |
| 56 | cli # turn off interrupts\r | |
| 57 | subq $0x10, %rsp # open some space on the stack\r | |
| 58 | movq %rsp, %rbx\r | |
| 59 | \r | |
| 60 | sidt (%rbx) # get fword address of IDT\r | |
| 61 | movq 2(%rbx), %rbx # move offset of IDT into RBX\r | |
| 62 | addq $0x10, %rsp # correct stack\r | |
| 63 | movq %rcx, %rax # Get vector number\r | |
| 64 | shlq $4, %rax # multiply by 16 to get offset\r | |
| 65 | addq %rax, %rbx # add to IDT base to get entry\r | |
| 66 | movq %rdx, %rax # load new address into IDT entry\r | |
| 67 | movw %ax, (%rbx) # write bits 15..0 of offset\r | |
| 68 | shrq $16, %rax # use ax to copy 31..16 to descriptors\r | |
| 69 | movw %ax, 6(%rbx) # write bits 31..16 of offset\r | |
| 70 | shrq $16, %rax # use eax to copy 63..32 to descriptors\r | |
| 71 | movl %eax, 8(%rbx) # write bits 63..32 of offset\r | |
| 72 | popfq # restore flags (possible enabling interrupts)\r | |
| 73 | pop %rbx\r | |
| 74 | ret\r | |
| 75 | \r | |
| b29a823d | 76 | .macro JmpCommonIdtEntry\r |
| 99032c45 | 77 | # jmp commonIdtEntry - this must be hand coded to keep the assembler from\r |
| 78 | # using a 8 bit reletive jump when the entries are\r | |
| 79 | # within 255 bytes of the common entry. This must\r | |
| 80 | # be done to maintain the consistency of the size\r | |
| 81 | # of entry points...\r | |
| 82 | .byte 0xe9 # jmp 16 bit reletive \r | |
| 83 | .long commonIdtEntry - . - 4 # offset to jump to\r | |
| b29a823d | 84 | .endm\r |
| 99032c45 | 85 | \r |
| 9811c392 | 86 | .p2align 1\r |
| b29a823d | 87 | ASM_GLOBAL ASM_PFX(SystemExceptionHandler)\r |
| 99032c45 | 88 | ASM_PFX(SystemExceptionHandler):\r |
| 89 | INT0:\r | |
| 90 | push $0x0 # push error code place holder on the stack\r | |
| 91 | push $0x0 \r | |
| 92 | JmpCommonIdtEntry\r | |
| 93 | # db 0e9h # jmp 16 bit reletive \r | |
| 94 | # dd commonIdtEntry - $ - 4 # offset to jump to\r | |
| 95 | \r | |
| 96 | INT1:\r | |
| 97 | push $0x0 # push error code place holder on the stack\r | |
| 98 | push $0x1 \r | |
| 99 | JmpCommonIdtEntry\r | |
| 100 | \r | |
| 101 | INT2:\r | |
| 102 | push $0x0 # push error code place holder on the stack\r | |
| 103 | push $0x2 \r | |
| 104 | JmpCommonIdtEntry\r | |
| 105 | \r | |
| 106 | INT3:\r | |
| 107 | push $0x0 # push error code place holder on the stack\r | |
| 108 | push $0x3 \r | |
| 109 | JmpCommonIdtEntry\r | |
| 110 | \r | |
| 111 | INT4:\r | |
| 112 | push $0x0 # push error code place holder on the stack\r | |
| 113 | push $0x4 \r | |
| 114 | JmpCommonIdtEntry\r | |
| 115 | \r | |
| 116 | INT5:\r | |
| 117 | push $0x0 # push error code place holder on the stack\r | |
| 118 | push $0x5 \r | |
| 119 | JmpCommonIdtEntry\r | |
| 120 | \r | |
| 121 | INT6:\r | |
| 122 | push $0x0 # push error code place holder on the stack\r | |
| 123 | push $0x6 \r | |
| 124 | JmpCommonIdtEntry\r | |
| 125 | \r | |
| 126 | INT7:\r | |
| 127 | push $0x0 # push error code place holder on the stack\r | |
| 128 | push $0x7 \r | |
| 129 | JmpCommonIdtEntry\r | |
| 130 | \r | |
| 131 | INT8:\r | |
| 132 | # Double fault causes an error code to be pushed so no phony push necessary\r | |
| 133 | nop\r | |
| 134 | nop\r | |
| 135 | push $0x8 \r | |
| 136 | JmpCommonIdtEntry\r | |
| 137 | \r | |
| 138 | INT9:\r | |
| 139 | push $0x0 # push error code place holder on the stack\r | |
| 140 | push $0x9 \r | |
| 141 | JmpCommonIdtEntry\r | |
| 142 | \r | |
| 143 | INT10:\r | |
| 144 | # Invalid TSS causes an error code to be pushed so no phony push necessary\r | |
| 145 | nop\r | |
| 146 | nop\r | |
| 147 | push $10\r | |
| 148 | JmpCommonIdtEntry\r | |
| 149 | \r | |
| 150 | INT11:\r | |
| 151 | # Segment Not Present causes an error code to be pushed so no phony push necessary\r | |
| 152 | nop\r | |
| 153 | nop\r | |
| 154 | push $11\r | |
| 155 | JmpCommonIdtEntry\r | |
| 156 | \r | |
| 157 | INT12:\r | |
| 158 | # Stack fault causes an error code to be pushed so no phony push necessary\r | |
| 159 | nop\r | |
| 160 | nop\r | |
| 161 | push $12\r | |
| 162 | JmpCommonIdtEntry\r | |
| 163 | \r | |
| 164 | INT13:\r | |
| 165 | # GP fault causes an error code to be pushed so no phony push necessary\r | |
| 166 | nop\r | |
| 167 | nop\r | |
| 168 | push $13\r | |
| 169 | JmpCommonIdtEntry\r | |
| 170 | \r | |
| 171 | INT14:\r | |
| 172 | # Page fault causes an error code to be pushed so no phony push necessary\r | |
| 173 | nop\r | |
| 174 | nop\r | |
| 175 | push $14\r | |
| 176 | JmpCommonIdtEntry\r | |
| 177 | \r | |
| 178 | INT15:\r | |
| 179 | push $0x0 # push error code place holder on the stack\r | |
| 180 | push $15\r | |
| 181 | JmpCommonIdtEntry\r | |
| 182 | \r | |
| 183 | INT16:\r | |
| 184 | push $0x0 # push error code place holder on the stack\r | |
| 185 | push $16\r | |
| 186 | JmpCommonIdtEntry\r | |
| 187 | \r | |
| 188 | INT17:\r | |
| 189 | # Alignment check causes an error code to be pushed so no phony push necessary\r | |
| 190 | nop\r | |
| 191 | nop\r | |
| 192 | push $17\r | |
| 193 | JmpCommonIdtEntry\r | |
| 194 | \r | |
| 195 | INT18:\r | |
| 196 | push $0x0 # push error code place holder on the stack\r | |
| 197 | push $18\r | |
| 198 | JmpCommonIdtEntry\r | |
| 199 | \r | |
| 200 | INT19:\r | |
| 201 | push $0x0 # push error code place holder on the stack\r | |
| 202 | push $19\r | |
| 203 | JmpCommonIdtEntry\r | |
| 204 | \r | |
| 205 | INTUnknown:\r | |
| 208628f8 | 206 | # The following segment repeats (32 - 20) times:\r |
| fee4cb81 | 207 | # macro .rept isn't used here because Apple GAS compiler doesn't support it.\r |
| 208628f8 | 208 | # No. 1\r |
| 99032c45 | 209 | push $0x0 # push error code place holder on the stack\r |
| 210 | # push xxh # push vector number\r | |
| 211 | .byte 0x6a\r | |
| 212 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 213 | JmpCommonIdtEntry\r | |
| 208628f8 | 214 | # No. 2\r |
| 215 | push $0x0 # push error code place holder on the stack\r | |
| 216 | # push xxh # push vector number\r | |
| 217 | .byte 0x6a\r | |
| 218 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 219 | JmpCommonIdtEntry\r | |
| 220 | # No. 3\r | |
| 221 | push $0x0 # push error code place holder on the stack\r | |
| 222 | # push xxh # push vector number\r | |
| 223 | .byte 0x6a\r | |
| 224 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 225 | JmpCommonIdtEntry\r | |
| 226 | # No. 4\r | |
| 227 | push $0x0 # push error code place holder on the stack\r | |
| 228 | # push xxh # push vector number\r | |
| 229 | .byte 0x6a\r | |
| 230 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 231 | JmpCommonIdtEntry\r | |
| 232 | # No. 5\r | |
| 233 | push $0x0 # push error code place holder on the stack\r | |
| 234 | # push xxh # push vector number\r | |
| 235 | .byte 0x6a\r | |
| 236 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 237 | JmpCommonIdtEntry\r | |
| 238 | # No. 6\r | |
| 239 | push $0x0 # push error code place holder on the stack\r | |
| 240 | # push xxh # push vector number\r | |
| 241 | .byte 0x6a\r | |
| 242 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 243 | JmpCommonIdtEntry\r | |
| 244 | # No. 7\r | |
| 245 | push $0x0 # push error code place holder on the stack\r | |
| 246 | # push xxh # push vector number\r | |
| 247 | .byte 0x6a\r | |
| 248 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 249 | JmpCommonIdtEntry\r | |
| 250 | # No. 8\r | |
| 251 | push $0x0 # push error code place holder on the stack\r | |
| 252 | # push xxh # push vector number\r | |
| 253 | .byte 0x6a\r | |
| 254 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 255 | JmpCommonIdtEntry\r | |
| 256 | # No. 9\r | |
| 257 | push $0x0 # push error code place holder on the stack\r | |
| 258 | # push xxh # push vector number\r | |
| 259 | .byte 0x6a\r | |
| 260 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 261 | JmpCommonIdtEntry\r | |
| 262 | # No. 10\r | |
| 263 | push $0x0 # push error code place holder on the stack\r | |
| 264 | # push xxh # push vector number\r | |
| 265 | .byte 0x6a\r | |
| 266 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 267 | JmpCommonIdtEntry\r | |
| 268 | # No. 11\r | |
| 269 | push $0x0 # push error code place holder on the stack\r | |
| 270 | # push xxh # push vector number\r | |
| 271 | .byte 0x6a\r | |
| 272 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 273 | JmpCommonIdtEntry\r | |
| 274 | # No. 12\r | |
| 275 | push $0x0 # push error code place holder on the stack\r | |
| 276 | # push xxh # push vector number\r | |
| 277 | .byte 0x6a\r | |
| 278 | .byte ( . - INTUnknown - 3 ) / 9 + 20 # vector number\r | |
| 279 | JmpCommonIdtEntry\r | |
| 280 | \r | |
| 99032c45 | 281 | \r |
| b29a823d | 282 | ASM_GLOBAL ASM_PFX(SystemTimerHandler)\r |
| 99032c45 | 283 | ASM_PFX(SystemTimerHandler):\r |
| 284 | push $0\r | |
| 285 | push $ASM_PFX(mTimerVector)\r | |
| 286 | JmpCommonIdtEntry\r | |
| 287 | \r | |
| 288 | commonIdtEntry:\r | |
| 289 | # +---------------------+\r | |
| 290 | # + EFlags +\r | |
| 291 | # +---------------------+\r | |
| 292 | # + CS +\r | |
| 293 | # +---------------------+\r | |
| 294 | # + EIP +\r | |
| 295 | # +---------------------+\r | |
| 296 | # + Error Code +\r | |
| 297 | # +---------------------+\r | |
| 298 | # + Vector Number +\r | |
| 299 | # +---------------------+\r | |
| 300 | # + EBP +\r | |
| 301 | # +---------------------+ <-- EBP\r | |
| 302 | \r | |
| 303 | cli\r | |
| 304 | push %rbp\r | |
| 305 | movq %rsp,%rbp\r | |
| 306 | \r | |
| 307 | #\r | |
| 308 | # Since here the stack pointer is 16-byte aligned, so\r | |
| 309 | # EFI_FX_SAVE_STATE_X64 of EFI_SYSTEM_CONTEXT_x64\r | |
| 310 | # is 16-byte aligned\r | |
| 311 | # \r | |
| 312 | \r | |
| 313 | ## UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax#\r | |
| 314 | ## UINT64 R8, R9, R10, R11, R12, R13, R14, R15#\r | |
| 315 | push %r15\r | |
| 316 | push %r14\r | |
| 317 | push %r13\r | |
| 318 | push %r12\r | |
| 319 | push %r11\r | |
| 320 | push %r10\r | |
| 321 | push %r9\r | |
| 322 | push %r8\r | |
| 323 | push %rax\r | |
| 324 | push %rcx\r | |
| 325 | push %rdx\r | |
| 326 | push %rbx\r | |
| 327 | push 6*8(%rbp)\r | |
| 328 | push (%rbp)\r | |
| 329 | push %rsi\r | |
| 330 | push %rdi\r | |
| 331 | \r | |
| 332 | ## UINT64 Gs, Fs, Es, Ds, Cs, Ss# insure high 16 bits of each is zero\r | |
| 333 | movzx 7*8(%rbp), %rax\r | |
| 334 | push %rax # for ss\r | |
| 335 | movzx 4*8(%rbp), %rax\r | |
| 336 | push %rax # for cs\r | |
| 337 | movq %ds, %rax\r | |
| 338 | push %rax\r | |
| 339 | movq %es, %rax\r | |
| 340 | push %rax\r | |
| 341 | movq %fs, %rax\r | |
| 342 | push %rax\r | |
| 343 | movq %gs, %rax\r | |
| 344 | push %rax\r | |
| 345 | \r | |
| 346 | ## UINT64 Rip#\r | |
| 347 | push 3*8(%rbp)\r | |
| 348 | \r | |
| 349 | ## UINT64 Gdtr[2], Idtr[2]#\r | |
| 350 | subq $16, %rsp\r | |
| 351 | sidt (%rsp)\r | |
| 352 | subq $16, %rsp\r | |
| 353 | sgdt (%rsp)\r | |
| 354 | \r | |
| 355 | ## UINT64 Ldtr, Tr#\r | |
| 356 | xorq %rax, %rax\r | |
| 357 | str %ax\r | |
| 358 | push %rax\r | |
| 359 | sldt %ax\r | |
| 360 | push %rax\r | |
| 361 | \r | |
| 362 | ## UINT64 RFlags#\r | |
| 363 | push 5*8(%rbp)\r | |
| 364 | \r | |
| 365 | ## UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8#\r | |
| 366 | movq %cr8, %rax\r | |
| 367 | push %rax\r | |
| 368 | movq %cr4, %rax\r | |
| 369 | orq $0x208, %rax\r | |
| 370 | movq %rax, %cr4\r | |
| 371 | push %rax\r | |
| 372 | movq %cr3, %rax\r | |
| 373 | push %rax\r | |
| 374 | movq %cr2, %rax\r | |
| 375 | push %rax\r | |
| 376 | xorq %rax, %rax\r | |
| 377 | push %rax\r | |
| 378 | movq %cr0, %rax\r | |
| 379 | push %rax\r | |
| 380 | \r | |
| 381 | ## UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7#\r | |
| 382 | movq %dr7, %rax\r | |
| 383 | push %rax\r | |
| 384 | \r | |
| 385 | ## clear Dr7 while executing debugger itself\r | |
| 386 | xorq %rax, %rax\r | |
| 387 | movq %rax, %dr7\r | |
| 388 | \r | |
| 389 | movq %dr6, %rax\r | |
| 390 | push %rax\r | |
| 391 | \r | |
| 392 | ## insure all status bits in dr6 are clear...\r | |
| 393 | xorq %rax, %rax\r | |
| 394 | movq %rax, %dr6\r | |
| 395 | \r | |
| 396 | movq %dr3, %rax\r | |
| 397 | push %rax\r | |
| 398 | movq %dr2, %rax\r | |
| 399 | push %rax\r | |
| 400 | movq %dr1, %rax\r | |
| 401 | push %rax\r | |
| 402 | movq %dr0, %rax\r | |
| 403 | push %rax\r | |
| 404 | \r | |
| 405 | \r | |
| 406 | ## FX_SAVE_STATE_X64 FxSaveState#\r | |
| 407 | subq $512, %rsp\r | |
| 408 | movq %rsp, %rdi\r | |
| 409 | fxsave (%rdi)\r | |
| 410 | \r | |
| 411 | ## UINT64 ExceptionData#\r | |
| 412 | push 2*8 (%rbp) \r | |
| 413 | \r | |
| 414 | ## call into exception handler\r | |
| 415 | ## Prepare parameter and call\r | |
| 416 | movq 1*8(%rbp), %rcx\r | |
| 417 | movq %rsp, %rdx\r | |
| 418 | #\r | |
| 419 | # Per X64 calling convention, allocate maximum parameter stack space\r | |
| 420 | # and make sure RSP is 16-byte aligned\r | |
| 421 | #\r | |
| 422 | subq $(4*8+8), %rsp\r | |
| 423 | cmpq $32, %rcx\r | |
| 424 | jb CallException\r | |
| 425 | call ASM_PFX(TimerHandler)\r | |
| 426 | jmp ExceptionDone\r | |
| 427 | CallException:\r | |
| 428 | call ASM_PFX(ExceptionHandler)\r | |
| 429 | ExceptionDone:\r | |
| 430 | addq $(4*8+8), %rsp\r | |
| 431 | \r | |
| 432 | cli\r | |
| 99032c45 | 433 | ## UINT64 ExceptionData#\r |
| 434 | addq $8, %rsp\r | |
| 435 | \r | |
| 436 | ## FX_SAVE_STATE_X64 FxSaveState#\r | |
| 437 | movq %rsp, %rsi\r | |
| 438 | fxrstor (%esi)\r | |
| 439 | addq $512, %rsp\r | |
| 440 | \r | |
| 441 | \r | |
| 442 | ## UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7#\r | |
| 443 | pop %rax\r | |
| 444 | movq %rax, %dr0\r | |
| 445 | pop %rax\r | |
| 446 | movq %rax, %dr1\r | |
| 447 | pop %rax\r | |
| 448 | movq %rax, %dr2\r | |
| 449 | pop %rax\r | |
| 450 | movq %rax, %dr3\r | |
| 451 | ## skip restore of dr6. We cleared dr6 during the context save.\r | |
| 452 | addq $8, %rsp\r | |
| 453 | pop %rax\r | |
| 454 | movq %rax, %dr7\r | |
| 455 | \r | |
| 456 | ## UINT64 Cr0, Cr1, Cr2, Cr3, Cr4, Cr8#\r | |
| 457 | pop %rax\r | |
| 458 | movq %rax, %cr0\r | |
| 459 | addq $8, %rsp # not for Cr1\r | |
| 460 | pop %rax\r | |
| 461 | movq %rax, %cr2\r | |
| 462 | pop %rax\r | |
| 463 | movq %rax, %cr3\r | |
| 464 | pop %rax\r | |
| 465 | movq %rax, %cr4\r | |
| 466 | pop %rax\r | |
| 467 | mov %rax, %cr8\r | |
| 468 | \r | |
| 469 | ## UINT64 RFlags#\r | |
| 470 | pop 5*8(%rbp) \r | |
| 471 | \r | |
| 472 | ## UINT64 Ldtr, Tr#\r | |
| 473 | ## UINT64 Gdtr[2], Idtr[2]#\r | |
| 474 | ## Best not let anyone mess with these particular registers...\r | |
| 475 | addq $48, %rsp\r | |
| 476 | \r | |
| 477 | ## UINT64 Rip#\r | |
| 478 | pop 3*8(%rbp)\r | |
| 479 | \r | |
| 480 | ## UINT64 Gs, Fs, Es, Ds, Cs, Ss#\r | |
| 481 | pop %rax\r | |
| 482 | # mov gs, rax # not for gs\r | |
| 483 | pop %rax\r | |
| 484 | # mov fs, rax # not for fs\r | |
| 485 | # (X64 will not use fs and gs, so we do not restore it)\r | |
| 486 | pop %rax\r | |
| 487 | movq %rax, %es\r | |
| 488 | pop %rax\r | |
| 489 | movq %rax, %ds\r | |
| 490 | pop 4*8(%rbp) # for cs\r | |
| 491 | pop 7*8(%rbp) # for ss\r | |
| 492 | \r | |
| 493 | ## UINT64 Rdi, Rsi, Rbp, Rsp, Rbx, Rdx, Rcx, Rax#\r | |
| 494 | ## UINT64 R8, R9, R10, R11, R12, R13, R14, R15#\r | |
| 495 | pop %rdi\r | |
| 496 | pop %rsi\r | |
| 497 | addq $8, %rsp # not for rbp\r | |
| 498 | pop 6*8(%rbp) # for rsp\r | |
| 499 | pop %rbx\r | |
| 500 | pop %rdx\r | |
| 501 | pop %rcx\r | |
| 502 | pop %rax\r | |
| 503 | pop %r8\r | |
| 504 | pop %r9\r | |
| 505 | pop %r10\r | |
| 506 | pop %r11\r | |
| 507 | pop %r12\r | |
| 508 | pop %r13\r | |
| 509 | pop %r14\r | |
| 510 | pop %r15\r | |
| 511 | \r | |
| 512 | movq %rbp, %rsp\r | |
| 513 | pop %rbp\r | |
| 514 | addq $16, %rsp\r | |
| 515 | iretq\r | |
| 516 | \r | |
| 517 | \r | |
| 518 | ##############################################################################\r | |
| 519 | # data\r | |
| 520 | ##############################################################################\r | |
| 521 | \r | |
| b29a823d | 522 | .data\r |
| 99032c45 | 523 | \r |
| b29a823d | 524 | gdtr: .short GDT_END - GDT_BASE - 1 # GDT limit\r |
| fee4cb81 | 525 | .quad 0 # (GDT base gets set above)\r |
| 99032c45 | 526 | ##############################################################################\r |
| 527 | # global descriptor table (GDT)\r | |
| 528 | ##############################################################################\r | |
| 529 | \r | |
| fee4cb81 | 530 | .p2align 4 # make GDT 16-byte align\r |
| 99032c45 | 531 | \r |
| 532 | GDT_BASE:\r | |
| 533 | # null descriptor\r | |
| fee4cb81 RN |
534 | NULL_SEL = .-GDT_BASE # Selector [0x0]\r |
| 535 | .short 0 # limit 15:0\r | |
| 536 | .short 0 # base 15:0\r | |
| 537 | .byte 0 # base 23:16\r | |
| 538 | .byte 0 # type\r | |
| 539 | .byte 0 # limit 19:16, flags\r | |
| 540 | .byte 0 # base 31:24\r | |
| 99032c45 | 541 | \r |
| 542 | # linear data segment descriptor\r | |
| fee4cb81 | 543 | LINEAR_SEL = .-GDT_BASE # Selector [0x8]\r |
| 99032c45 | 544 | .short 0x0FFFF # limit 0xFFFFF\r |
| 545 | .short 0 # base 0\r | |
| 546 | .byte 0\r | |
| 547 | .byte 0x092 # present, ring 0, data, expand-up, writable\r | |
| 548 | .byte 0x0CF # page-granular, 32-bit\r | |
| 549 | .byte 0\r | |
| 550 | \r | |
| 551 | # linear code segment descriptor\r | |
| fee4cb81 | 552 | LINEAR_CODE_SEL = .-GDT_BASE # Selector [0x10]\r |
| 99032c45 | 553 | .short 0x0FFFF # limit 0xFFFFF\r |
| 554 | .short 0 # base 0\r | |
| 555 | .byte 0\r | |
| fee4cb81 | 556 | .byte 0x09A # present, ring 0, code, expand-up, writable\r |
| 99032c45 | 557 | .byte 0x0CF # page-granular, 32-bit\r |
| 558 | .byte 0\r | |
| 559 | \r | |
| 560 | # system data segment descriptor\r | |
| fee4cb81 | 561 | SYS_DATA_SEL = .-GDT_BASE # Selector [0x18]\r |
| 99032c45 | 562 | .short 0x0FFFF # limit 0xFFFFF\r |
| 563 | .short 0 # base 0\r | |
| 564 | .byte 0\r | |
| 565 | .byte 0x092 # present, ring 0, data, expand-up, writable\r | |
| 566 | .byte 0x0CF # page-granular, 32-bit\r | |
| 567 | .byte 0\r | |
| 568 | \r | |
| 569 | # system code segment descriptor\r | |
| fee4cb81 | 570 | SYS_CODE_SEL = .-GDT_BASE # Selector [0x20]\r |
| 99032c45 | 571 | .short 0x0FFFF # limit 0xFFFFF\r |
| 572 | .short 0 # base 0\r | |
| 573 | .byte 0\r | |
| fee4cb81 | 574 | .byte 0x09A # present, ring 0, code, expand-up, writable\r |
| 99032c45 | 575 | .byte 0x0CF # page-granular, 32-bit\r |
| 576 | .byte 0\r | |
| 577 | \r | |
| 578 | # spare segment descriptor\r | |
| fee4cb81 RN |
579 | SPARE3_SEL = .-GDT_BASE # Selector [0x28]\r |
| 580 | .short 0\r | |
| 581 | .short 0\r | |
| 582 | .byte 0\r | |
| 583 | .byte 0\r | |
| 584 | .byte 0\r | |
| 585 | .byte 0\r | |
| 586 | \r | |
| 587 | # system data segment descriptor\r | |
| 588 | SYS_DATA64_SEL = .-GDT_BASE # Selector [0x30]\r | |
| 589 | .short 0x0FFFF # limit 0xFFFFF\r | |
| 99032c45 | 590 | .short 0 # base 0\r |
| 591 | .byte 0\r | |
| fee4cb81 RN |
592 | .byte 0x092 # present, ring 0, data, expand-up, writable\r |
| 593 | .byte 0x0CF # page-granular, 32-bit\r | |
| 99032c45 | 594 | .byte 0\r |
| 595 | \r | |
| fee4cb81 RN |
596 | # system code segment descriptor\r |
| 597 | SYS_CODE64_SEL = .-GDT_BASE # Selector [0x38]\r | |
| 598 | .short 0x0FFFF # limit 0xFFFFF\r | |
| 99032c45 | 599 | .short 0 # base 0\r |
| 600 | .byte 0\r | |
| fee4cb81 RN |
601 | .byte 0x09A # present, ring 0, code, expand-up, writable\r |
| 602 | .byte 0x0AF # page-granular, 64-bit\r | |
| 99032c45 | 603 | .byte 0\r |
| 604 | \r | |
| 605 | # spare segment descriptor\r | |
| fee4cb81 RN |
606 | SPARE4_SEL = .-GDT_BASE # Selector [0x40]\r |
| 607 | .short 0\r | |
| 608 | .short 0\r | |
| 609 | .byte 0\r | |
| 610 | .byte 0\r | |
| 99032c45 | 611 | .byte 0\r |
| 99032c45 | 612 | .byte 0\r |
| 613 | \r | |
| 614 | GDT_END:\r | |
| 615 | \r | |
| b29a823d | 616 | idtr: .short IDT_END - IDT_BASE - 1 # IDT limit\r |
| fee4cb81 | 617 | .quad 0 # (IDT base gets set above)\r |
| 99032c45 | 618 | ##############################################################################\r |
| 619 | # interrupt descriptor table (IDT)\r | |
| 620 | #\r | |
| 621 | # Note: The hardware IRQ's specified in this table are the normal PC/AT IRQ\r | |
| 622 | # mappings. This implementation only uses the system timer and all other\r | |
| 623 | # IRQs will remain masked. The descriptors for vectors 33+ are provided\r | |
| 624 | # for convenience.\r | |
| 625 | ##############################################################################\r | |
| 626 | \r | |
| fee4cb81 | 627 | .p2align 3 # make IDT 8-byte align\r |
| 99032c45 | 628 | \r |
| 629 | IDT_BASE:\r | |
| 630 | # divide by zero (INT 0)\r | |
| 631 | DIV_ZERO_SEL = .-IDT_BASE\r | |
| 632 | .short 0 # offset 15:0\r | |
| fee4cb81 | 633 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 634 | .byte 0 # 0 for interrupt gate\r |
| 635 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 636 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
637 | .long 0 # offset 63:32\r |
| 638 | .long 0 # for reserved\r | |
| 99032c45 | 639 | \r |
| 640 | # debug exception (INT 1)\r | |
| 641 | DEBUG_EXCEPT_SEL = .-IDT_BASE\r | |
| 642 | .short 0 # offset 15:0\r | |
| fee4cb81 | 643 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 644 | .byte 0 # 0 for interrupt gate\r |
| 645 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 646 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
647 | .long 0 # offset 63:32\r |
| 648 | .long 0 # for reserved\r | |
| 99032c45 | 649 | \r |
| 650 | # NMI (INT 2)\r | |
| 651 | NMI_SEL = .-IDT_BASE\r | |
| 652 | .short 0 # offset 15:0\r | |
| fee4cb81 | 653 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 654 | .byte 0 # 0 for interrupt gate\r |
| 655 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 656 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
657 | .long 0 # offset 63:32\r |
| 658 | .long 0 # for reserved\r | |
| 99032c45 | 659 | \r |
| 660 | # soft breakpoint (INT 3)\r | |
| 661 | BREAKPOINT_SEL = .-IDT_BASE\r | |
| 662 | .short 0 # offset 15:0\r | |
| fee4cb81 | 663 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 664 | .byte 0 # 0 for interrupt gate\r |
| 665 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 666 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
667 | .long 0 # offset 63:32\r |
| 668 | .long 0 # for reserved\r | |
| 99032c45 | 669 | \r |
| 670 | # overflow (INT 4)\r | |
| 671 | OVERFLOW_SEL = .-IDT_BASE\r | |
| 672 | .short 0 # offset 15:0\r | |
| fee4cb81 | 673 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 674 | .byte 0 # 0 for interrupt gate\r |
| 675 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 676 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
677 | .long 0 # offset 63:32\r |
| 678 | .long 0 # for reserved\r | |
| 99032c45 | 679 | \r |
| 680 | # bounds check (INT 5)\r | |
| 681 | BOUNDS_CHECK_SEL = .-IDT_BASE\r | |
| 682 | .short 0 # offset 15:0\r | |
| fee4cb81 | 683 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 684 | .byte 0 # 0 for interrupt gate\r |
| 685 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 686 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
687 | .long 0 # offset 63:32\r |
| 688 | .long 0 # for reserved\r | |
| 99032c45 | 689 | \r |
| 690 | # invalid opcode (INT 6)\r | |
| 691 | INVALID_OPCODE_SEL = .-IDT_BASE\r | |
| 692 | .short 0 # offset 15:0\r | |
| fee4cb81 | 693 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 694 | .byte 0 # 0 for interrupt gate\r |
| 695 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 696 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
697 | .long 0 # offset 63:32\r |
| 698 | .long 0 # for reserved\r | |
| 99032c45 | 699 | \r |
| 700 | # device not available (INT 7)\r | |
| 701 | DEV_NOT_AVAIL_SEL = .-IDT_BASE\r | |
| 702 | .short 0 # offset 15:0\r | |
| fee4cb81 | 703 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 704 | .byte 0 # 0 for interrupt gate\r |
| 705 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 706 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
707 | .long 0 # offset 63:32\r |
| 708 | .long 0 # for reserved\r | |
| 99032c45 | 709 | \r |
| 710 | # double fault (INT 8)\r | |
| 711 | DOUBLE_FAULT_SEL = .-IDT_BASE\r | |
| 712 | .short 0 # offset 15:0\r | |
| fee4cb81 | 713 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 714 | .byte 0 # 0 for interrupt gate\r |
| 715 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 716 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
717 | .long 0 # offset 63:32\r |
| 718 | .long 0 # for reserved\r | |
| 99032c45 | 719 | \r |
| 720 | # Coprocessor segment overrun - reserved (INT 9)\r | |
| 721 | RSVD_INTR_SEL1 = .-IDT_BASE\r | |
| 722 | .short 0 # offset 15:0\r | |
| fee4cb81 | 723 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 724 | .byte 0 # 0 for interrupt gate\r |
| 725 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 726 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
727 | .long 0 # offset 63:32\r |
| 728 | .long 0 # for reserved\r | |
| 99032c45 | 729 | \r |
| 730 | # invalid TSS (INT 0ah)\r | |
| 731 | INVALID_TSS_SEL = .-IDT_BASE\r | |
| 732 | .short 0 # offset 15:0\r | |
| fee4cb81 | 733 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 734 | .byte 0 # 0 for interrupt gate\r |
| 735 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 736 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
737 | .long 0 # offset 63:32\r |
| 738 | .long 0 # for reserved\r | |
| 99032c45 | 739 | \r |
| 740 | # segment not present (INT 0bh)\r | |
| 741 | SEG_NOT_PRESENT_SEL = .-IDT_BASE\r | |
| 742 | .short 0 # offset 15:0\r | |
| fee4cb81 | 743 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 744 | .byte 0 # 0 for interrupt gate\r |
| 745 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 746 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
747 | .long 0 # offset 63:32\r |
| 748 | .long 0 # for reserved\r | |
| 99032c45 | 749 | \r |
| 750 | # stack fault (INT 0ch)\r | |
| 751 | STACK_FAULT_SEL = .-IDT_BASE\r | |
| 752 | .short 0 # offset 15:0\r | |
| fee4cb81 | 753 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 754 | .byte 0 # 0 for interrupt gate\r |
| 755 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 756 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
757 | .long 0 # offset 63:32\r |
| 758 | .long 0 # for reserved\r | |
| 99032c45 | 759 | \r |
| 760 | # general protection (INT 0dh)\r | |
| 761 | GP_FAULT_SEL = .-IDT_BASE\r | |
| 762 | .short 0 # offset 15:0\r | |
| fee4cb81 | 763 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 764 | .byte 0 # 0 for interrupt gate\r |
| 765 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 766 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
767 | .long 0 # offset 63:32\r |
| 768 | .long 0 # for reserved\r | |
| 99032c45 | 769 | \r |
| 770 | # page fault (INT 0eh)\r | |
| 771 | PAGE_FAULT_SEL = .-IDT_BASE\r | |
| 772 | .short 0 # offset 15:0\r | |
| fee4cb81 | 773 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 774 | .byte 0 # 0 for interrupt gate\r |
| 775 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 776 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
777 | .long 0 # offset 63:32\r |
| 778 | .long 0 # for reserved\r | |
| 99032c45 | 779 | \r |
| 780 | # Intel reserved - do not use (INT 0fh)\r | |
| 781 | RSVD_INTR_SEL2 = .-IDT_BASE\r | |
| 782 | .short 0 # offset 15:0\r | |
| fee4cb81 | 783 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 784 | .byte 0 # 0 for interrupt gate\r |
| 785 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 786 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
787 | .long 0 # offset 63:32\r |
| 788 | .long 0 # for reserved\r | |
| 99032c45 | 789 | \r |
| 790 | # floating point error (INT 0x10)\r | |
| 791 | FLT_POINT_ERR_SEL = .-IDT_BASE\r | |
| 792 | .short 0 # offset 15:0\r | |
| fee4cb81 | 793 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 794 | .byte 0 # 0 for interrupt gate\r |
| 795 | .byte 0x0e | 0x80 # type = 386 interrupt gate, present\r | |
| 796 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
797 | .long 0 # offset 63:32\r |
| 798 | .long 0 # for reserved\r | |
| 99032c45 | 799 | \r |
| 800 | # alignment check (INT 0x11)\r | |
| 801 | ALIGNMENT_CHECK_SEL = .-IDT_BASE\r | |
| 802 | .short 0 # offset 15:0\r | |
| fee4cb81 | 803 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 804 | .byte 0 # 0 for interrupt gate\r |
| 805 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 806 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
807 | .long 0 # offset 63:32\r |
| 808 | .long 0 # for reserved\r | |
| 99032c45 | 809 | \r |
| 810 | # machine check (INT 0x12)\r | |
| 811 | MACHINE_CHECK_SEL = .-IDT_BASE\r | |
| 812 | .short 0 # offset 15:0\r | |
| fee4cb81 | 813 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 814 | .byte 0 # 0 for interrupt gate\r |
| 815 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 816 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
817 | .long 0 # offset 63:32\r |
| 818 | .long 0 # for reserved\r | |
| 99032c45 | 819 | \r |
| 820 | # SIMD floating-point exception (INT 0x13)\r | |
| 821 | SIMD_EXCEPTION_SEL = .-IDT_BASE\r | |
| 822 | .short 0 # offset 15:0\r | |
| fee4cb81 | 823 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 824 | .byte 0 # 0 for interrupt gate\r |
| 825 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 826 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
827 | .long 0 # offset 63:32\r |
| 828 | .long 0 # for reserved\r | |
| 99032c45 | 829 | \r |
| 208628f8 | 830 | # The following segment repeats (32 - 20) times:\r |
| fee4cb81 | 831 | # macro .rept isn't used here because Apple GAS compiler doesn't support it.\r |
| 208628f8 | 832 | # No. 1\r |
| 99032c45 | 833 | .short 0 # offset 15:0\r |
| 834 | .short SYS_CODE_SEL # selector 15:0\r | |
| 835 | .byte 0 # 0 for interrupt gate\r | |
| 836 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 837 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
838 | .long 0 # offset 63:32\r |
| 839 | .long 0 # for reserved\r | |
| 208628f8 | 840 | # No. 2\r |
| 841 | .short 0 # offset 15:0\r | |
| 842 | .short SYS_CODE_SEL # selector 15:0\r | |
| 843 | .byte 0 # 0 for interrupt gate\r | |
| 844 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 845 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
846 | .long 0 # offset 63:32\r |
| 847 | .long 0 # for reserved\r | |
| 208628f8 | 848 | # No. 3\r |
| 849 | .short 0 # offset 15:0\r | |
| 850 | .short SYS_CODE_SEL # selector 15:0\r | |
| 851 | .byte 0 # 0 for interrupt gate\r | |
| 852 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 853 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
854 | .long 0 # offset 63:32\r |
| 855 | .long 0 # for reserved\r | |
| 208628f8 | 856 | # No. 4\r |
| 857 | .short 0 # offset 15:0\r | |
| 858 | .short SYS_CODE_SEL # selector 15:0\r | |
| 859 | .byte 0 # 0 for interrupt gate\r | |
| 860 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 861 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
862 | .long 0 # offset 63:32\r |
| 863 | .long 0 # for reserved\r | |
| 208628f8 | 864 | # No. 5\r |
| 865 | .short 0 # offset 15:0\r | |
| 866 | .short SYS_CODE_SEL # selector 15:0\r | |
| 867 | .byte 0 # 0 for interrupt gate\r | |
| 868 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 869 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
870 | .long 0 # offset 63:32\r |
| 871 | .long 0 # for reserved\r | |
| 208628f8 | 872 | # No. 6\r |
| 873 | .short 0 # offset 15:0\r | |
| 874 | .short SYS_CODE_SEL # selector 15:0\r | |
| 875 | .byte 0 # 0 for interrupt gate\r | |
| 876 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 877 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
878 | .long 0 # offset 63:32\r |
| 879 | .long 0 # for reserved\r | |
| 208628f8 | 880 | # No. 7\r |
| 881 | .short 0 # offset 15:0\r | |
| 882 | .short SYS_CODE_SEL # selector 15:0\r | |
| 883 | .byte 0 # 0 for interrupt gate\r | |
| 884 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 885 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
886 | .long 0 # offset 63:32\r |
| 887 | .long 0 # for reserved\r | |
| 208628f8 | 888 | # No. 8\r |
| 889 | .short 0 # offset 15:0\r | |
| 890 | .short SYS_CODE_SEL # selector 15:0\r | |
| 891 | .byte 0 # 0 for interrupt gate\r | |
| 892 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 893 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
894 | .long 0 # offset 63:32\r |
| 895 | .long 0 # for reserved\r | |
| 208628f8 | 896 | # No. 9\r |
| 897 | .short 0 # offset 15:0\r | |
| 898 | .short SYS_CODE_SEL # selector 15:0\r | |
| 899 | .byte 0 # 0 for interrupt gate\r | |
| 900 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 901 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
902 | .long 0 # offset 63:32\r |
| 903 | .long 0 # for reserved\r | |
| 208628f8 | 904 | # No. 10\r |
| 905 | .short 0 # offset 15:0\r | |
| 906 | .short SYS_CODE_SEL # selector 15:0\r | |
| 907 | .byte 0 # 0 for interrupt gate\r | |
| 908 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 909 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
910 | .long 0 # offset 63:32\r |
| 911 | .long 0 # for reserved\r | |
| 208628f8 | 912 | # No. 11\r |
| 913 | .short 0 # offset 15:0\r | |
| 914 | .short SYS_CODE_SEL # selector 15:0\r | |
| 915 | .byte 0 # 0 for interrupt gate\r | |
| 916 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 917 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
918 | .long 0 # offset 63:32\r |
| 919 | .long 0 # for reserved\r | |
| 208628f8 | 920 | # No. 12\r |
| 921 | .short 0 # offset 15:0\r | |
| 922 | .short SYS_CODE_SEL # selector 15:0\r | |
| 923 | .byte 0 # 0 for interrupt gate\r | |
| 924 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 925 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
926 | .long 0 # offset 63:32\r |
| 927 | .long 0 # for reserved\r | |
| 208628f8 | 928 | \r |
| 99032c45 | 929 | \r |
| 930 | # 72 unspecified descriptors\r | |
| fee4cb81 | 931 | .fill 72 * 16, 1, 0\r |
| 99032c45 | 932 | \r |
| 933 | # IRQ 0 (System timer) - (INT 0x68)\r | |
| 934 | IRQ0_SEL = .-IDT_BASE\r | |
| 935 | .short 0 # offset 15:0\r | |
| fee4cb81 | 936 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 937 | .byte 0 # 0 for interrupt gate\r |
| 938 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 939 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
940 | .long 0 # offset 63:32\r |
| 941 | .long 0 # 0 for reserved\r | |
| 99032c45 | 942 | \r |
| 943 | # IRQ 1 (8042 Keyboard controller) - (INT 0x69)\r | |
| 944 | IRQ1_SEL = .-IDT_BASE\r | |
| 945 | .short 0 # offset 15:0\r | |
| fee4cb81 | 946 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 947 | .byte 0 # 0 for interrupt gate\r |
| 948 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 949 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
950 | .long 0 # offset 63:32\r |
| 951 | .long 0 # for reserved\r | |
| 99032c45 | 952 | \r |
| 953 | # Reserved - IRQ 2 redirect (IRQ 2) - DO NOT USE!!! - (INT 6ah)\r | |
| 954 | IRQ2_SEL = .-IDT_BASE\r | |
| 955 | .short 0 # offset 15:0\r | |
| fee4cb81 | 956 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 957 | .byte 0 # 0 for interrupt gate\r |
| 958 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 959 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
960 | .long 0 # offset 63:32\r |
| 961 | .long 0 # for reserved\r | |
| 99032c45 | 962 | \r |
| 963 | # IRQ 3 (COM 2) - (INT 6bh)\r | |
| 964 | IRQ3_SEL = .-IDT_BASE\r | |
| 965 | .short 0 # offset 15:0\r | |
| fee4cb81 | 966 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 967 | .byte 0 # 0 for interrupt gate\r |
| 968 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 969 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
970 | .long 0 # offset 63:32\r |
| 971 | .long 0 # for reserved\r | |
| 99032c45 | 972 | \r |
| 973 | # IRQ 4 (COM 1) - (INT 6ch)\r | |
| 974 | IRQ4_SEL = .-IDT_BASE\r | |
| 975 | .short 0 # offset 15:0\r | |
| fee4cb81 | 976 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 977 | .byte 0 # 0 for interrupt gate\r |
| 978 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 979 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
980 | .long 0 # offset 63:32\r |
| 981 | .long 0 # for reserved\r | |
| 99032c45 | 982 | \r |
| 983 | # IRQ 5 (LPT 2) - (INT 6dh)\r | |
| 984 | IRQ5_SEL = .-IDT_BASE\r | |
| 985 | .short 0 # offset 15:0\r | |
| fee4cb81 | 986 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 987 | .byte 0 # 0 for interrupt gate\r |
| 988 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 989 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
990 | .long 0 # offset 63:32\r |
| 991 | .long 0 # for reserved\r | |
| 99032c45 | 992 | \r |
| 993 | # IRQ 6 (Floppy controller) - (INT 6eh)\r | |
| 994 | IRQ6_SEL = .-IDT_BASE\r | |
| 995 | .short 0 # offset 15:0\r | |
| fee4cb81 | 996 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 997 | .byte 0 # 0 for interrupt gate\r |
| 998 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 999 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1000 | .long 0 # offset 63:32\r |
| 1001 | .long 0 # for reserved\r | |
| 99032c45 | 1002 | \r |
| 1003 | # IRQ 7 (LPT 1) - (INT 6fh)\r | |
| 1004 | IRQ7_SEL = .-IDT_BASE\r | |
| 1005 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1006 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1007 | .byte 0 # 0 for interrupt gate\r |
| 1008 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1009 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1010 | .long 0 # offset 63:32\r |
| 1011 | .long 0 # for reserved\r | |
| 99032c45 | 1012 | \r |
| 1013 | # IRQ 8 (RTC Alarm) - (INT 0x70)\r | |
| 1014 | IRQ8_SEL = .-IDT_BASE\r | |
| 1015 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1016 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1017 | .byte 0 # 0 for interrupt gate\r |
| 1018 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1019 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1020 | .long 0 # offset 63:32\r |
| 1021 | .long 0 # for reserved\r | |
| 99032c45 | 1022 | \r |
| 1023 | # IRQ 9 - (INT 0x71)\r | |
| 1024 | IRQ9_SEL = .-IDT_BASE\r | |
| 1025 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1026 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1027 | .byte 0 # 0 for interrupt gate\r |
| 1028 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1029 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1030 | .long 0 # offset 63:32\r |
| 1031 | .long 0 # for reserved\r | |
| 99032c45 | 1032 | \r |
| 1033 | # IRQ 10 - (INT 0x72)\r | |
| 1034 | IRQ10_SEL = .-IDT_BASE\r | |
| 1035 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1036 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1037 | .byte 0 # 0 for interrupt gate\r |
| 1038 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1039 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1040 | .long 0 # offset 63:32\r |
| 1041 | .long 0 # for reserved\r | |
| 99032c45 | 1042 | \r |
| 1043 | # IRQ 11 - (INT 0x73)\r | |
| 1044 | IRQ11_SEL = .-IDT_BASE\r | |
| 1045 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1046 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1047 | .byte 0 # 0 for interrupt gate\r |
| 1048 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1049 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1050 | .long 0 # offset 63:32\r |
| 1051 | .long 0 # for reserved\r | |
| 99032c45 | 1052 | \r |
| 1053 | # IRQ 12 (PS/2 mouse) - (INT 0x74)\r | |
| 1054 | IRQ12_SEL = .-IDT_BASE\r | |
| 1055 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1056 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1057 | .byte 0 # 0 for interrupt gate\r |
| 1058 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1059 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1060 | .long 0 # offset 63:32\r |
| 1061 | .long 0 # for reserved\r | |
| 99032c45 | 1062 | \r |
| 1063 | # IRQ 13 (Floating point error) - (INT 0x75)\r | |
| 1064 | IRQ13_SEL = .-IDT_BASE\r | |
| 1065 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1066 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1067 | .byte 0 # 0 for interrupt gate\r |
| 1068 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1069 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1070 | .long 0 # offset 63:32\r |
| 1071 | .long 0 # for reserved\r | |
| 99032c45 | 1072 | \r |
| 1073 | # IRQ 14 (Secondary IDE) - (INT 0x76)\r | |
| 1074 | IRQ14_SEL = .-IDT_BASE\r | |
| 1075 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1076 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1077 | .byte 0 # 0 for interrupt gate\r |
| 1078 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1079 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1080 | .long 0 # offset 63:32\r |
| 1081 | .long 0 # for reserved\r | |
| 99032c45 | 1082 | \r |
| 1083 | # IRQ 15 (Primary IDE) - (INT 0x77)\r | |
| 1084 | IRQ15_SEL = .-IDT_BASE\r | |
| 1085 | .short 0 # offset 15:0\r | |
| fee4cb81 | 1086 | .short SYS_CODE64_SEL # selector 15:0\r |
| 99032c45 | 1087 | .byte 0 # 0 for interrupt gate\r |
| 1088 | .byte 0x0e | 0x80 # (10001110)type = 386 interrupt gate, present\r | |
| 1089 | .short 0 # offset 31:16\r | |
| fee4cb81 RN |
1090 | .long 0 # offset 63:32\r |
| 1091 | .long 0 # for reserved\r | |
| 99032c45 | 1092 | \r |
| b29a823d | 1093 | .fill 16, 1, 0\r |
| 99032c45 | 1094 | \r |
| 1095 | IDT_END:\r | |
| 1096 | \r |