reactos/ntoskrnl/ke/amd64/trap.S

   1 /*
   2  * FILE:            ntoskrnl/ke/amd64/trap.S
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PURPOSE:         System Traps, Entrypoints and Exitpoints
   5  * PROGRAMMER:      Timo Kreuzer (timo.kreuzer@reactos.org)
   6  */
   7
   8 /* INCLUDES ******************************************************************/
   9
  10 #include <ndk/amd64/asm.h>
  11 #include <ndk/amd64/asmmacro.S>
  12
  13 /* GLOBALS *******************************************************************/
  14
  15 .data
  16
  17 .global _MsgUnimplemented
  18 _MsgUnimplemented:
  19 .asciz "WARNING:  %s at %s:%d is UNIMPLEMENTED!\n"
  20
  21 _MsgPageFault:
  22 .ascii "Page fault! Code = 0x%x, RIP = %p, FaultingAddress = %p\n\0"
  23
  24 _MsgGeneralProtFault:
  25 .ascii "General protection fault at %p!\n\0"
  26
  27 _MsgBreakpointTrap:
  28 .ascii "BreakpointTrap at %p\n\0"
  29
  30 _MsgUnexpectedInterrupt:
  31 .ascii "UnexpectedInterrupt\n\0"
  32
  33 _MsgInvalidOpcodeFault:
  34 .ascii "General protection fault at %p!\n\0"
  35
  36 _MsgTrapInfo:
  37 .ascii "Trap: %s at %p\n\0"
  38
  39 .macro TRAPINFO func
  40 #if 0
  41     jmp 2f
  42     .equ expr, 12
  43 1:  .asciz "\func"
  44 2:
  45     sub rsp, 0x20
  46     lea rcx, _MsgTrapInfo[rip]
  47     lea rdx, 1b[rip]
  48     mov r8, [rbp + KTRAP_FRAME_Rip]
  49     call _FrLdrDbgPrint[rip]
  50     add rsp, 0x20
  51 #endif
  52 .endm
  53
  54 /* Helper Macros *************************************************************/
  55
  56 #define TRAPFLAG_VOLATILES 0x01
  57 #define TRAPFLAG_NONVOLATILES 0x02
  58 #define TRAPFLAG_XMM 0x04
  59 #define TRAPFLAG_SEGMENTS 0x08
  60 #define TRAPFLAG_DEBUG 0x10
  61
  62 #define TRAPFLAG_SYSTEMSERVICE (TRAPFLAG_VOLATILES|TRAPFLAG_DEBUG)
  63 #define TRAPFLAG_ALL 0xff
  64
  65 /*
  66  * Stack Layout:
  67  * |-------------------|
  68  * | KTRAP_FRAME       |
  69  * |-------------------| <- rbp
  70  * | EXCEPTION_RECORD  |
  71  * |-------------------|
  72  * | KEXCEPTION_FRAME  |
  73  * |-------------------| <- rsp
  74  *
  75  */
  76
  77 /*
  78  * ENTER_TRAP_FRAME - Allocate SIZE_KTRAP_FRAME and save registers to it
  79  */
  80 .macro ENTER_TRAP_FRAME Flags
  81 .set SIZE_INITIAL_FRAME, 7 * 8
  82 //.set SIZE_LOCAL_DATA, SIZE_EXCEPTION_RECORD + 0x28
  83 .set SIZE_TRAP_FRAME_ALLOC, SIZE_KTRAP_FRAME - SIZE_INITIAL_FRAME
  84 .set TRAPFLAGS, \Flags
  85
  86     /* Save rbp */
  87     push rbp
  88     .pushreg rbp
  89
  90     /* Make room for a KTRAP_FRAME and function parameters */
  91     sub rsp, SIZE_TRAP_FRAME_ALLOC
  92     .allocstack SIZE_TRAP_FRAME_ALLOC
  93
  94     /* Point rbp to the KTRAP_FRAME */
  95     lea rbp, [rsp]
  96
  97 .if (TRAPFLAGS & TRAPFLAG_NONVOLATILES)
  98     /* Save non-volatile registers */
  99     mov [rbp + KTRAP_FRAME_Rbx], rbx
 100     mov [rbp + KTRAP_FRAME_Rdi], rdi
 101     mov [rbp + KTRAP_FRAME_Rsi], rsi
 102 .endif
 103
 104 .if (TRAPFLAGS & TRAPFLAG_VOLATILES)
 105     /* Save volatile registers */
 106     mov [rbp + KTRAP_FRAME_Rax], rax
 107     mov [rbp + KTRAP_FRAME_Rcx], rcx
 108     mov [rbp + KTRAP_FRAME_Rdx], rdx
 109     mov [rbp + KTRAP_FRAME_R8], r8
 110     mov [rbp + KTRAP_FRAME_R9], r9
 111     mov [rbp + KTRAP_FRAME_R10], r10
 112     mov [rbp + KTRAP_FRAME_R11], r11
 113 .endif
 114
 115 .if (TRAPFLAGS & TRAPFLAG_XMM)
 116     /* Save xmm registers */
 117 //    movdqa [rbp + KTRAP_FRAME_Xmm0], xmm0
 118 //    movdqa [rbp + KTRAP_FRAME_Xmm1], xmm1
 119 //    movdqa [rbp + KTRAP_FRAME_Xmm2], xmm2
 120 //    movdqa [rbp + KTRAP_FRAME_Xmm3], xmm3
 121 //    movdqa [rbp + KTRAP_FRAME_Xmm4], xmm4
 122 //    movdqa [rbp + KTRAP_FRAME_Xmm5], xmm5
 123 .endif
 124
 125 .if (TRAPFLAGS & TRAPFLAG_SEGMENTS)
 126     /* Save segment selectors */
 127     mov ax, ds
 128     mov [rbp + KTRAP_FRAME_SegDs], ax
 129     mov ax, es
 130     mov [rbp + KTRAP_FRAME_SegEs], ax
 131     mov ax, fs
 132     mov [rbp + KTRAP_FRAME_SegFs], ax
 133     mov ax, gs
 134     mov [rbp + KTRAP_FRAME_SegGs], ax
 135 .endif
 136
 137     /* Save previous mode and swap gs when it was UserMode */
 138     mov ax, [rbp + KTRAP_FRAME_SegCs]
 139     and ax, 1
 140     mov [rbp + KTRAP_FRAME_PreviousMode], al
 141     jz 1f
 142     swapgs
 143 1:
 144
 145     /* Save previous irql */
 146     mov rax, cr8
 147     mov [rbp + KTRAP_FRAME_PreviousIrql], al
 148
 149 // KTRAP_FRAME_FaultIndicator
 150 // KTRAP_FRAME_ExceptionActive
 151 // KTRAP_FRAME_MxCsr
 152
 153 .if (TRAPFLAGS & TRAPFLAG_DEBUG)
 154     /* Save debug registers */
 155     mov rax, dr0
 156     mov [rbp + KTRAP_FRAME_Dr0], rax
 157     mov rax, dr1
 158     mov [rbp + KTRAP_FRAME_Dr1], rax
 159     mov rax, dr2
 160     mov [rbp + KTRAP_FRAME_Dr2], rax
 161     mov rax, dr3
 162     mov [rbp + KTRAP_FRAME_Dr3], rax
 163     mov rax, dr6
 164     mov [rbp + KTRAP_FRAME_Dr6], rax
 165     mov rax, dr7
 166     mov [rbp + KTRAP_FRAME_Dr7], rax
 167 .endif
 168
 169 // KTRAP_FRAME_DebugControl
 170 // KTRAP_FRAME_LastBranchToRip
 171 // KTRAP_FRAME_LastBranchFromRip
 172 // KTRAP_FRAME_LastExceptionToRip
 173 // KTRAP_FRAME_LastExceptionFromRip
 174 // KTRAP_FRAME_TrapFrame
 175
 176     /* Make sure the direction flag is cleared */
 177     cld
 178 .endm
 179
 180
 181 /*
 182  *  LEAVE_TRAP_FRAME - Restore registers and free stack space
 183  */
 184 .macro LEAVE_TRAP_FRAME
 185
 186 .if (TRAPFLAGS & TRAPFLAG_SEGMENTS)
 187     /* Restore segment selectors */
 188     mov ax, [rbp + KTRAP_FRAME_SegDs]
 189     mov ds, ax
 190     mov ax, [rbp + KTRAP_FRAME_SegEs]
 191     mov es, ax
 192     mov ax, [rbp + KTRAP_FRAME_SegFs]
 193     mov fs, ax
 194 .endif
 195
 196     test byte ptr [rbp + KTRAP_FRAME_PreviousMode], 1
 197     jz 1f
 198     swapgs
 199 1:
 200
 201 .if (TRAPFLAGS & TRAPFLAG_NONVOLATILES)
 202     /* Restore non-volatile registers */
 203     mov rbx, [rbp + KTRAP_FRAME_Rbx]
 204     mov rdi, [rbp + KTRAP_FRAME_Rdi]
 205     mov rsi, [rbp + KTRAP_FRAME_Rsi]
 206 .endif
 207
 208 .if (TRAPFLAGS & TRAPFLAG_VOLATILES)
 209     /* Restore volatile registers */
 210     mov rax, [rbp + KTRAP_FRAME_Rax]
 211     mov rcx, [rbp + KTRAP_FRAME_Rcx]
 212     mov rdx, [rbp + KTRAP_FRAME_Rdx]
 213     mov r8, [rbp + KTRAP_FRAME_R8]
 214     mov r9, [rbp + KTRAP_FRAME_R9]
 215     mov r10, [rbp + KTRAP_FRAME_R10]
 216     mov r11, [rbp + KTRAP_FRAME_R11]
 217 .endif
 218
 219 .if (TRAPFLAGS & TRAPFLAG_XMM)
 220     /* Restore xmm registers */
 221 //    movdqa xmm0, [rbp + KTRAP_FRAME_Xmm0]
 222 //    movdqa xmm1, [rbp + KTRAP_FRAME_Xmm1]
 223 //    movdqa xmm2, [rbp + KTRAP_FRAME_Xmm2]
 224 //    movdqa xmm3, [rbp + KTRAP_FRAME_Xmm3]
 225 //    movdqa xmm4, [rbp + KTRAP_FRAME_Xmm4]
 226 //    movdqa xmm5, [rbp + KTRAP_FRAME_Xmm5]
 227 .endif
 228
 229     /* Restore rbp */
 230     mov rbp, [rbp + KTRAP_FRAME_Rbp]
 231
 232     /* Adjust stack pointer (plus one qword for rbp, one for error code) */
 233     add rsp, SIZE_TRAP_FRAME_ALLOC + 0x10
 234 .endm
 235
 236
 237 /* FUNCTIONS *****************************************************************/
 238
 239 .text
 240 .code64
 241
 242 // rbp = TrapFrame, eax = ExceptionCode, edx = NumParams, r9,r10,r11 = params
 243 _InternalDispatchException:
 244
 245     /* Allocate stack space for EXCEPTION_RECORD and KEXCEPTION_FRAME */
 246     sub rsp, SIZE_EXCEPTION_RECORD + SIZE_KEXCEPTION_FRAME
 247
 248     /* Set up EXCEPTION_RECORD */
 249     lea rcx, [rsp + SIZE_KEXCEPTION_FRAME]
 250     mov [rcx + EXCEPTION_RECORD_ExceptionCode], eax
 251     xor rax, rax
 252     mov [rcx + EXCEPTION_RECORD_ExceptionFlags], eax
 253     mov [rcx + EXCEPTION_RECORD_ExceptionRecord], rax
 254     mov rax, [rbp + KTRAP_FRAME_Rip]
 255     mov [rcx + EXCEPTION_RECORD_ExceptionAddress], rax
 256     mov [rcx + EXCEPTION_RECORD_NumberParameters], edx
 257     mov [rcx + EXCEPTION_RECORD_ExceptionInformation + 0x00], r9
 258     mov [rcx + EXCEPTION_RECORD_ExceptionInformation + 0x08], r10
 259     mov [rcx + EXCEPTION_RECORD_ExceptionInformation + 0x10], r11
 260
 261     /* Set up KEXCEPTION_FRAME */
 262     mov rax, [rbp + KTRAP_FRAME_Rbp]
 263     mov [rsp + KEXCEPTION_FRAME_Rbp], rax
 264     mov [rsp + KEXCEPTION_FRAME_Rbx], rbx
 265     mov [rsp + KEXCEPTION_FRAME_Rdi], rdi
 266     mov [rsp + KEXCEPTION_FRAME_Rsi], rsi
 267     mov [rsp + KEXCEPTION_FRAME_R12], r12
 268     mov [rsp + KEXCEPTION_FRAME_R13], r13
 269     mov [rsp + KEXCEPTION_FRAME_R14], r14
 270     mov [rsp + KEXCEPTION_FRAME_R15], r15
 271     mov qword ptr [rsp + KEXCEPTION_FRAME_Return], 0
 272
 273     /* Call KiDispatchException */
 274     // rcx already points to ExceptionRecord
 275     mov rdx, rsp                                // ExceptionFrame
 276     mov r8, rbp                                 // TrapFrame
 277     mov r9b, [r8 + KTRAP_FRAME_PreviousMode]    // PreviousMode
 278     mov byte ptr [rsp + KEXCEPTION_FRAME_P5], 1 // FirstChance
 279     call _KiDispatchException
 280
 281     add rsp, SIZE_EXCEPTION_RECORD + SIZE_KEXCEPTION_FRAME
 282     ret
 283
 284 /* SOFTWARE INTERRUPT SERVICES ***********************************************/
 285
 286 .proc KiDivideErrorFault
 287     .pushframe 0
 288     /* Push pseudo error code */
 289     push 0
 290     .allocstack 0x8
 291
 292     UNIMPLEMENTED KiDivideErrorFault
 293
 294     jmp $
 295 .endproc
 296
 297 .proc KiDebugTrapOrFault
 298     .pushframe 0
 299     /* Push pseudo error code */
 300     push 0
 301     .allocstack 0x8
 302
 303     ENTER_TRAP_FRAME TRAPFLAG_ALL
 304
 305     TRAPINFO KiDebugTrapOrFault
 306
 307     /* Check if the frame was from kernelmode */
 308     test word ptr [rbp + KTRAP_FRAME_SegCs], 3
 309     jz KiDebugTrapOrFaultKMode
 310
 311     /* Enable interrupts for user-mode */
 312     sti
 313
 314 KiDebugTrapOrFaultKMode:
 315
 316     /* Dispatch the exception */
 317     mov eax, STATUS_SINGLE_STEP
 318     mov edx, 0
 319     mov r9, 0
 320     mov r10, 0
 321     mov r11, 0
 322     call _InternalDispatchException
 323
 324     /* Return */
 325     LEAVE_TRAP_FRAME
 326     iretq
 327 .endproc
 328
 329 .proc KiNmiInterrupt
 330     .pushframe 0
 331     /* Push pseudo error code */
 332     push 0
 333     .allocstack 0x8
 334
 335     UNIMPLEMENTED KiNmiInterrupt
 336
 337     jmp $
 338 .endproc
 339
 340 .proc KiBreakpointTrap
 341     .pushframe 0
 342     /* Push pseudo error code */
 343     push 0
 344     .allocstack 0x8
 345
 346     ENTER_TRAP_FRAME TRAPFLAG_ALL
 347
 348     TRAPINFO KiBreakpointTrap
 349
 350 //    lea rcx, _MsgBreakpointTrap[rip]
 351 //    mov rdx, rsp
 352 //    call _FrLdrDbgPrint[rip]
 353
 354     /* Dispatch the exception */
 355     mov eax, STATUS_BREAKPOINT
 356     mov edx, 3
 357     mov r9, 0
 358     mov r10, 0
 359     mov r11, 0
 360     call _InternalDispatchException
 361
 362     /* Return */
 363     LEAVE_TRAP_FRAME
 364     iretq
 365 .endproc
 366
 367 .proc KiOverflowTrap
 368     .pushframe 0
 369     /* Push pseudo error code */
 370     push 0
 371     .allocstack 0x8
 372
 373     UNIMPLEMENTED KiOverflowTrap
 374     jmp $
 375 .endproc
 376
 377 .proc KiBoundFault
 378     .pushframe 0
 379     /* Push pseudo error code */
 380     push 0
 381     .allocstack 8
 382
 383     sub rsp, 0x20
 384     .allocstack 0x20
 385
 386     mov [rsp + 8], rbx
 387     .savereg rbx, 8
 388
 389     UNIMPLEMENTED KiBoundFault
 390
 391     jmp $
 392 .endproc
 393
 394 .proc KiInvalidOpcodeFault
 395     .pushframe 0
 396     /* Push pseudo error code */
 397     push 0
 398     .allocstack 0x8
 399
 400     ENTER_TRAP_FRAME TRAPFLAG_ALL
 401
 402     TRAPINFO KiInvalidOpcodeFault
 403
 404 //    DISPATCH_EXCEPTION STATUS_BREAKPOINT, 3, 0, 0, 0
 405
 406     mov rdx, [rbp + KTRAP_FRAME_Rip]
 407     lea rcx, _MsgInvalidOpcodeFault[rip]
 408     call _FrLdrDbgPrint[rip]
 409     jmp $
 410
 411     /* Return */
 412     LEAVE_TRAP_FRAME
 413     iretq
 414 .endproc
 415
 416 .proc KiNpxNotAvailableFault
 417     .pushframe 0
 418     /* Push pseudo error code */
 419     push 0
 420     .allocstack 0x8
 421
 422     UNIMPLEMENTED KiNpxNotAvailableFault
 423
 424     jmp $
 425 .endproc
 426
 427 .proc KiDoubleFaultAbort
 428     .pushframe 0
 429     /* Push pseudo error code */
 430     push 0
 431     .allocstack 0x8
 432
 433     /* Reserve stack space for parameters */
 434     sub rsp, 0x28
 435     .allocstack 0x28
 436
 437     /* Bugcheck code UNEXPECTED_KERNEL_MODE_TRAP */
 438     mov rcx, 0x0000007F
 439
 440     /* Set double fault parameters */
 441     mov rdx, 0x00000008
 442     mov r8, 0
 443     mov r9, 0
 444     mov qword ptr [rsp + 0x20], 0
 445
 446     call _KeBugCheckEx
 447
 448     jmp $
 449 .endproc
 450
 451 .proc KiNpxSegmentOverrunAbort
 452     .pushframe 0
 453     /* Push pseudo error code */
 454     push 0
 455     .allocstack 0x8
 456
 457     UNIMPLEMENTED KiNpxSegmentOverrunAbort
 458
 459     jmp $
 460 .endproc
 461
 462 .proc KiInvalidTssFault
 463     .pushframe 1
 464     /* We have an error code */
 465
 466     UNIMPLEMENTED KiInvalidTssFault
 467
 468     jmp $
 469 .endproc
 470
 471
 472 .proc KiSegmentNotPresentFault
 473     .pushframe 1
 474     /* We have an error code */
 475
 476     UNIMPLEMENTED KiSegmentNotPresentFault
 477
 478     jmp $
 479 .endproc
 480
 481 .proc KiStackFault
 482     .pushframe 1
 483     /* We have an error code */
 484
 485     UNIMPLEMENTED KiStackFault
 486
 487     jmp $
 488 .endproc
 489
 490
 491 .proc KiGeneralProtectionFault
 492     .pushframe 1
 493     /* We have an error code */
 494
 495     cli
 496     ENTER_TRAP_FRAME TRAPFLAG_ALL
 497
 498     TRAPINFO KiGeneralProtectionFault
 499
 500     mov rdx, [rbp + KTRAP_FRAME_Rip]
 501     lea rcx, _MsgGeneralProtFault[rip]
 502     call _FrLdrDbgPrint[rip]
 503
 504     /* Check if this was from user-mode */
 505     cmp byte ptr [rbp + KTRAP_FRAME_PreviousMode], KernelMode
 506     jnz KiGpfUserMode
 507
 508     /* Get instruction */
 509     mov rax, [rbp + KTRAP_FRAME_Rip]
 510     mov rax, [rax]
 511
 512     /* Check for MSR failure */
 513     cmp al, 0xF
 514     jz KiGpfMsr
 515
 516     /* Check for IRET */
 517     cmp ax, 0xCF48
 518     je KiGpfIret
 519
 520     /* Check for pop ds/es/fs/gs */
 521     xor edx, edx
 522     cmp al, 0x1F
 523     jz KiGpfPopSegDs
 524     cmp al, 0x07
 525     jz KiGpfPopSegEs
 526     cmp ax, 0xA10F
 527     jz KiGpfPopSegFs
 528     cmp ax, 0xA90F
 529     jz KiGpfPopSegGs
 530
 531
 532     mov dx, 0x002B // KGDT64_R3_DATA | RPL_MASK
 533     cmp [rbp + KTRAP_FRAME_SegDs], dx
 534     jne KiGpfPopSegDs
 535     cmp [rbp + KTRAP_FRAME_SegEs], dx
 536     jne KiGpfPopSegEs
 537     cmp [rbp + KTRAP_FRAME_SegFs], dx
 538     jne KiGpfPopSegFs
 539     cmp [rbp + KTRAP_FRAME_SegGs], dx
 540     jne KiGpfPopSegGs
 541
 542 KiGpfFatal:
 543
 544     /* Bugcheck */
 545     mov ecx, UNEXPECTED_KERNEL_MODE_TRAP
 546     mov rdx, 0x0000D // EXCEPTION_GP_FAULT
 547     xor rdx, rdx
 548     xor r8, r8
 549     xor r9, r9 // Reserved
 550     mov [rbp + KTRAP_FRAME_P5], rbp // trap frame
 551     call _KeBugCheckWithTf
 552
 553
 554
 555 KiGpfPopSegDs:
 556     mov [rbp + KTRAP_FRAME_SegDs], dx
 557     jmp KiGpfPopSeg
 558
 559 KiGpfPopSegEs:
 560     mov [rbp + KTRAP_FRAME_SegEs], dx
 561     jmp KiGpfPopSeg
 562
 563 KiGpfPopSegFs:
 564     mov [rbp + KTRAP_FRAME_SegFs], dx
 565     jmp KiGpfPopSeg
 566
 567 KiGpfPopSegGs:
 568     mov [rbp + KTRAP_FRAME_SegGs], dx
 569     jmp KiGpfPopSeg
 570
 571 KiGpfPopSeg:
 572     jmp KiGpfExit
 573
 574 KiGpfIret:
 575     /* Get error code */
 576     mov ax, [rbp + KTRAP_FRAME_ErrorCode]
 577 //    and ax, ~RPL_MASK
 578
 579 KiGpfMsr:
 580
 581     jmp KiGpfFatal
 582
 583
 584 KiGpfUserMode:
 585
 586     /* Dispatch the exception */
 587     mov eax, STATUS_ACCESS_VIOLATION
 588     mov edx, 2
 589     mov r9, [rbp + KTRAP_FRAME_ErrorCode]
 590     mov r10, 0
 591     mov r11, 0
 592     call _InternalDispatchException
 593
 594 KiGpfExit:
 595
 596     /* Return */
 597     LEAVE_TRAP_FRAME
 598     iretq
 599
 600 .endproc
 601
 602
 603 .proc KiPageFault
 604     .pushframe 1
 605     /* We have an error code */
 606
 607     ENTER_TRAP_FRAME TRAPFLAG_ALL
 608
 609     TRAPINFO KiPageFault
 610
 611 #if 0
 612     lea rcx, _MsgPageFault[rip]
 613     mov rdx, [rbp + KTRAP_FRAME_ErrorCode]
 614     mov r8, [rbp + KTRAP_FRAME_Rip]
 615     mov r9, [rbp + KTRAP_FRAME_FaultAddress]
 616     call _FrLdrDbgPrint[rip]
 617 #endif
 618
 619     /* Save page fault address */
 620     mov rdx, cr2
 621     mov [rbp  + KTRAP_FRAME_FaultAddress], rdx
 622
 623     /* Call page fault handler */
 624     mov ecx, [rbp + KTRAP_FRAME_ErrorCode] // StoreInstruction
 625     and ecx, 1
 626     // rdx == Address
 627     mov r8b, [rbp + KTRAP_FRAME_SegCs] // Mode
 628     and r8b, 1
 629     mov r9, rbp // TrapInformation
 630     call _MmAccessFault
 631
 632     /* Check for success */
 633     test eax, eax
 634     jge PageFaultReturn
 635
 636     /* Set parameter 1 to error code */
 637     mov r9d, [rbp + KTRAP_FRAME_ErrorCode]
 638
 639     /* Set parameter2 to faulting address */
 640     mov r10, cr2  // Param2 = faulting address
 641
 642     cmp eax, STATUS_ACCESS_VIOLATION
 643     je AccessViolation
 644     cmp eax, STATUS_GUARD_PAGE_VIOLATION
 645     je SpecialCode
 646     cmp eax, STATUS_STACK_OVERFLOW
 647     je SpecialCode
 648
 649 InPageException:
 650     /* Dispatch in-page exception */
 651     mov r11d, eax // Param3 = Status
 652     mov eax, STATUS_IN_PAGE_ERROR // ExceptionCode
 653     mov edx, 3    // ParamCount
 654     call _InternalDispatchException
 655     jmp PageFaultReturn
 656
 657 AccessViolation:
 658     /* Use more proper status code */
 659     mov eax, KI_EXCEPTION_ACCESS_VIOLATION
 660
 661 SpecialCode:
 662     /* Setup a normal page fault exception */
 663     mov edx, 2   // ParamCount
 664     call _InternalDispatchException
 665
 666 PageFaultReturn:
 667     LEAVE_TRAP_FRAME;
 668     iretq
 669 .endproc
 670
 671
 672 .proc KiFloatingErrorFault
 673     .pushframe 0
 674     /* Push pseudo error code */
 675     push 0
 676     .allocstack 0x8
 677
 678     UNIMPLEMENTED KiFloatingErrorFault
 679
 680     jmp $
 681 .endproc
 682
 683 .proc KiAlignmentFault
 684     .pushframe 1
 685     /* We have an error code */
 686
 687     UNIMPLEMENTED KiAlignmentFault
 688
 689     jmp $
 690 .endproc
 691
 692 .proc KiMcheckAbort
 693     .pushframe 0
 694     /* Push pseudo error code */
 695     push 0
 696     .allocstack 0x08
 697
 698     UNIMPLEMENTED KiMcheckAbort
 699
 700     jmp $
 701 .endproc
 702
 703 .proc KiXmmException
 704     .pushframe 0
 705     /* Push pseudo error code */
 706     push 0
 707     .allocstack 0x08
 708
 709     UNIMPLEMENTED KiXmmException
 710
 711     jmp $
 712 .endproc
 713
 714 .proc KiApcInterrupt
 715     .pushframe 1
 716
 717     UNIMPLEMENTED KiApcInterrupt
 718
 719     jmp $
 720 .endproc
 721
 722 .proc KiRaiseAssertion
 723     .pushframe 1
 724
 725     UNIMPLEMENTED KiRaiseAssertion
 726
 727     jmp $
 728 .endproc
 729
 730 .proc KiDebugServiceTrap
 731     .pushframe 0
 732     /* Push pseudo error code */
 733     push 0
 734     .allocstack 0x08
 735
 736     ENTER_TRAP_FRAME TRAPFLAG_ALL
 737
 738     TRAPINFO KiDebugServiceTrap
 739
 740     /* Increase Rip to skip the int3 */
 741     inc qword ptr [rbp + KTRAP_FRAME_Rip]
 742
 743     /* Dispatch the exception */
 744     mov eax, STATUS_BREAKPOINT
 745     mov edx, 3
 746     mov r9, [rbp+KTRAP_FRAME_Rax] // Service
 747     mov r10, [rbp+KTRAP_FRAME_Rcx] // Buffer
 748     mov r11, [rbp+KTRAP_FRAME_Rdx] // Length
 749     call _InternalDispatchException
 750
 751     LEAVE_TRAP_FRAME;
 752     iretq
 753 .endproc
 754
 755
 756 .proc KiDpcInterrupt
 757     .pushframe 1
 758
 759     UNIMPLEMENTED KiDpcInterrupt
 760
 761     jmp $
 762 .endproc
 763
 764
 765 .proc KiIpiInterrupt
 766     .pushframe 1
 767
 768     UNIMPLEMENTED KiIpiInterrupt
 769
 770     jmp $
 771 .endproc
 772
 773
 774 .proc KiUnexpectedInterrupt
 775     .pushframe 0
 776     push 0
 777     .allocstack 0x8
 778
 779     lea rcx, _MsgUnexpectedInterrupt[rip]
 780     call _FrLdrDbgPrint[rip]
 781
 782     mov ecx, TRAP_CAUSE_UNKNOWN
 783 //    mov rdx, // The unexpected interrupt
 784 //    mov rdx, // The unknown floating-point exception
 785 //    mov r8, // The enabled and asserted status bits
 786     xor r9, r9 // Reserved
 787     mov [rbp + KTRAP_FRAME_P5], rbp // trap frame
 788     call _KeBugCheckWithTf
 789
 790 .endproc
 791
 792
 793 .proc KiSystemFatalException
 794
 795 .endproc
 796