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
 238 // rbp = TrapFrame, eax = ExceptionCode, edx = NumParams, r9,r10,r11 = params
 239 _InternalDispatchException:
 240
 241     /* Allocate stack space for EXCEPTION_RECORD and KEXCEPTION_FRAME */
 242     sub rsp, SIZE_EXCEPTION_RECORD + SIZE_KEXCEPTION_FRAME
 243
 244     /* Set up EXCEPTION_RECORD */
 245     lea rcx, [rsp + SIZE_KEXCEPTION_FRAME]
 246     mov [rcx + EXCEPTION_RECORD_ExceptionCode], eax
 247     xor rax, rax
 248     mov [rcx + EXCEPTION_RECORD_ExceptionFlags], eax
 249     mov [rcx + EXCEPTION_RECORD_ExceptionRecord], rax
 250     mov rax, [rbp + KTRAP_FRAME_Rip]
 251     mov [rcx + EXCEPTION_RECORD_ExceptionAddress], rax
 252     mov [rcx + EXCEPTION_RECORD_NumberParameters], edx
 253     mov [rcx + EXCEPTION_RECORD_ExceptionInformation + 0x00], r9
 254     mov [rcx + EXCEPTION_RECORD_ExceptionInformation + 0x08], r10
 255     mov [rcx + EXCEPTION_RECORD_ExceptionInformation + 0x10], r11
 256
 257     /* Set up KEXCEPTION_FRAME */
 258     mov rax, [rbp + KTRAP_FRAME_Rbp]
 259     mov [rsp + KEXCEPTION_FRAME_Rbp], rax
 260     mov [rsp + KEXCEPTION_FRAME_Rbx], rbx
 261     mov [rsp + KEXCEPTION_FRAME_Rdi], rdi
 262     mov [rsp + KEXCEPTION_FRAME_Rsi], rsi
 263     mov [rsp + KEXCEPTION_FRAME_R12], r12
 264     mov [rsp + KEXCEPTION_FRAME_R13], r13
 265     mov [rsp + KEXCEPTION_FRAME_R14], r14
 266     mov [rsp + KEXCEPTION_FRAME_R15], r15
 267     mov qword ptr [rsp + KEXCEPTION_FRAME_Return], 0
 268
 269     /* Call KiDispatchException */
 270     // rcx already points to ExceptionRecord
 271     mov rdx, rsp                                // ExceptionFrame
 272     mov r8, rbp                                 // TrapFrame
 273     mov r9b, [r8 + KTRAP_FRAME_PreviousMode]    // PreviousMode
 274     mov byte ptr [rsp + KEXCEPTION_FRAME_P5], 1 // FirstChance
 275     call _KiDispatchException
 276
 277     add rsp, SIZE_EXCEPTION_RECORD + SIZE_KEXCEPTION_FRAME
 278     ret
 279
 280 /* SOFTWARE INTERRUPT SERVICES ***********************************************/
 281 .text
 282 .code64
 283
 284 .proc KiDivideErrorFault
 285     .pushframe 0
 286     /* Push pseudo error code */
 287     push 0
 288     .allocstack 0x8
 289
 290     UNIMPLEMENTED KiDivideErrorFault
 291
 292     jmp $
 293 .endproc
 294
 295 .proc KiDebugTrapOrFault
 296     .pushframe 0
 297     /* Push pseudo error code */
 298     push 0
 299     .allocstack 0x8
 300
 301     ENTER_TRAP_FRAME TRAPFLAG_ALL
 302
 303     TRAPINFO KiDebugTrapOrFault
 304
 305     /* Check if the frame was from kernelmode */
 306     test word ptr [rbp + KTRAP_FRAME_SegCs], 3
 307     jz KiDebugTrapOrFaultKMode
 308
 309     /* Enable interrupts for user-mode */
 310     sti
 311
 312 KiDebugTrapOrFaultKMode:
 313
 314     /* Dispatch the exception */
 315     mov eax, STATUS_SINGLE_STEP
 316     mov edx, 0
 317     mov r9, 0
 318     mov r10, 0
 319     mov r11, 0
 320     call _InternalDispatchException
 321
 322     /* Return */
 323     LEAVE_TRAP_FRAME
 324     iretq
 325 .endproc
 326
 327 .proc KiNmiInterrupt
 328     .pushframe 0
 329     /* Push pseudo error code */
 330     push 0
 331     .allocstack 0x8
 332
 333     UNIMPLEMENTED KiNmiInterrupt
 334
 335     jmp $
 336 .endproc
 337
 338 .proc KiBreakpointTrap
 339     .pushframe 0
 340     /* Push pseudo error code */
 341     push 0
 342     .allocstack 0x8
 343
 344     ENTER_TRAP_FRAME TRAPFLAG_ALL
 345
 346     TRAPINFO KiBreakpointTrap
 347
 348 //    lea rcx, _MsgBreakpointTrap[rip]
 349 //    mov rdx, rsp
 350 //    call _FrLdrDbgPrint[rip]
 351
 352     /* Dispatch the exception */
 353     mov eax, STATUS_BREAKPOINT
 354     mov edx, 3
 355     mov r9, 0
 356     mov r10, 0
 357     mov r11, 0
 358     call _InternalDispatchException
 359
 360     /* Return */
 361     LEAVE_TRAP_FRAME
 362     iretq
 363 .endproc
 364
 365 .proc KiOverflowTrap
 366     .pushframe 0
 367     /* Push pseudo error code */
 368     push 0
 369     .allocstack 0x8
 370
 371     UNIMPLEMENTED KiOverflowTrap
 372     jmp $
 373 .endproc
 374
 375 .proc KiBoundFault
 376     .pushframe 0
 377     /* Push pseudo error code */
 378     push 0
 379     .allocstack 8
 380
 381     sub rsp, 0x20
 382     .allocstack 0x20
 383
 384     mov [rsp + 8], rbx
 385     .savereg rbx, 8
 386
 387     UNIMPLEMENTED KiBoundFault
 388
 389     jmp $
 390 .endproc
 391
 392 .proc KiInvalidOpcodeFault
 393     .pushframe 0
 394     /* Push pseudo error code */
 395     push 0
 396     .allocstack 0x8
 397
 398     ENTER_TRAP_FRAME TRAPFLAG_ALL
 399
 400     TRAPINFO KiInvalidOpcodeFault
 401
 402 //    DISPATCH_EXCEPTION STATUS_BREAKPOINT, 3, 0, 0, 0
 403
 404     mov rdx, [rbp + KTRAP_FRAME_Rip]
 405     lea rcx, _MsgInvalidOpcodeFault[rip]
 406     call _FrLdrDbgPrint[rip]
 407     jmp $
 408
 409     /* Return */
 410     LEAVE_TRAP_FRAME
 411     iretq
 412 .endproc
 413
 414 .proc KiNpxNotAvailableFault
 415     .pushframe 0
 416     /* Push pseudo error code */
 417     push 0
 418     .allocstack 0x8
 419
 420     UNIMPLEMENTED KiNpxNotAvailableFault
 421
 422     jmp $
 423 .endproc
 424
 425 .proc KiDoubleFaultAbort
 426     .pushframe 0
 427     /* Push pseudo error code */
 428     push 0
 429     .allocstack 0x8
 430
 431     /* Reserve stack space for parameters */
 432     sub rsp, 0x28
 433     .allocstack 0x28
 434
 435     /* Bugcheck code UNEXPECTED_KERNEL_MODE_TRAP */
 436     mov rcx, 0x0000007F
 437
 438     /* Set double fault parameters */
 439     mov rdx, 0x00000008
 440     mov r8, 0
 441     mov r9, 0
 442     mov qword ptr [rsp + 0x20], 0
 443
 444     call _KeBugCheckEx
 445
 446     jmp $
 447 .endproc
 448
 449 .proc KiNpxSegmentOverrunAbort
 450     .pushframe 0
 451     /* Push pseudo error code */
 452     push 0
 453     .allocstack 0x8
 454
 455     UNIMPLEMENTED KiNpxSegmentOverrunAbort
 456
 457     jmp $
 458 .endproc
 459
 460 .proc KiInvalidTssFault
 461     .pushframe 1
 462     /* We have an error code */
 463
 464     UNIMPLEMENTED KiInvalidTssFault
 465
 466     jmp $
 467 .endproc
 468
 469
 470 .proc KiSegmentNotPresentFault
 471     .pushframe 1
 472     /* We have an error code */
 473
 474     UNIMPLEMENTED KiSegmentNotPresentFault
 475
 476     jmp $
 477 .endproc
 478
 479 .proc KiStackFault
 480     .pushframe 1
 481     /* We have an error code */
 482
 483     UNIMPLEMENTED KiStackFault
 484
 485     jmp $
 486 .endproc
 487
 488
 489 .proc KiGeneralProtectionFault
 490     .pushframe 1
 491     /* We have an error code */
 492
 493     cli
 494     ENTER_TRAP_FRAME TRAPFLAG_ALL
 495
 496     TRAPINFO KiGeneralProtectionFault
 497
 498     mov rdx, [rbp + KTRAP_FRAME_Rip]
 499     lea rcx, _MsgGeneralProtFault[rip]
 500     call _FrLdrDbgPrint[rip]
 501
 502     /* Check if this was from user-mode */
 503     cmp byte ptr [rbp + KTRAP_FRAME_PreviousMode], KernelMode
 504     jnz KiGpfUserMode
 505
 506     /* Get instruction */
 507     mov rax, [rbp + KTRAP_FRAME_Rip]
 508     mov rax, [rax]
 509
 510     /* Check for MSR failure */
 511     cmp al, 0xF
 512     jz KiGpfMsr
 513
 514     /* Check for IRET */
 515     cmp ax, 0xCF48
 516     je KiGpfIret
 517
 518     /* Check for pop ds/es/fs/gs */
 519     xor edx, edx
 520     cmp al, 0x1F
 521     jz KiGpfPopSegDs
 522     cmp al, 0x07
 523     jz KiGpfPopSegEs
 524     cmp ax, 0xA10F
 525     jz KiGpfPopSegFs
 526     cmp ax, 0xA90F
 527     jz KiGpfPopSegGs
 528
 529
 530     mov dx, 0x002B // KGDT64_R3_DATA | RPL_MASK
 531     cmp [rbp + KTRAP_FRAME_SegDs], dx
 532     jne KiGpfPopSegDs
 533     cmp [rbp + KTRAP_FRAME_SegEs], dx
 534     jne KiGpfPopSegEs
 535     cmp [rbp + KTRAP_FRAME_SegFs], dx
 536     jne KiGpfPopSegFs
 537     cmp [rbp + KTRAP_FRAME_SegGs], dx
 538     jne KiGpfPopSegGs
 539
 540 KiGpfFatal:
 541
 542     /* Bugcheck */
 543     mov ecx, UNEXPECTED_KERNEL_MODE_TRAP
 544     mov rdx, 0x0000D // EXCEPTION_GP_FAULT
 545     xor rdx, rdx
 546     xor r8, r8
 547     xor r9, r9 // Reserved
 548     mov [rbp + KTRAP_FRAME_P5], rbp // trap frame
 549     call _KeBugCheckWithTf
 550
 551
 552
 553 KiGpfPopSegDs:
 554     mov [rbp + KTRAP_FRAME_SegDs], dx
 555     jmp KiGpfPopSeg
 556
 557 KiGpfPopSegEs:
 558     mov [rbp + KTRAP_FRAME_SegEs], dx
 559     jmp KiGpfPopSeg
 560
 561 KiGpfPopSegFs:
 562     mov [rbp + KTRAP_FRAME_SegFs], dx
 563     jmp KiGpfPopSeg
 564
 565 KiGpfPopSegGs:
 566     mov [rbp + KTRAP_FRAME_SegGs], dx
 567     jmp KiGpfPopSeg
 568
 569 KiGpfPopSeg:
 570     jmp KiGpfExit
 571
 572 KiGpfIret:
 573     /* Get error code */
 574     mov ax, [rbp + KTRAP_FRAME_ErrorCode]
 575 //    and ax, ~RPL_MASK
 576
 577 KiGpfMsr:
 578
 579     jmp KiGpfFatal
 580
 581
 582 KiGpfUserMode:
 583
 584     /* Dispatch the exception */
 585     mov eax, STATUS_ACCESS_VIOLATION
 586     mov edx, 2
 587     mov r9, [rbp + KTRAP_FRAME_ErrorCode]
 588     mov r10, 0
 589     mov r11, 0
 590     call _InternalDispatchException
 591
 592 KiGpfExit:
 593
 594     /* Return */
 595     LEAVE_TRAP_FRAME
 596     iretq
 597
 598 .endproc
 599
 600
 601 .proc KiPageFault
 602     .pushframe 1
 603     /* We have an error code */
 604
 605     ENTER_TRAP_FRAME TRAPFLAG_ALL
 606
 607     TRAPINFO KiPageFault
 608
 609 #if 0
 610     lea rcx, _MsgPageFault[rip]
 611     mov rdx, [rbp + KTRAP_FRAME_ErrorCode]
 612     mov r8, [rbp + KTRAP_FRAME_Rip]
 613     mov r9, [rbp + KTRAP_FRAME_FaultAddress]
 614     call _FrLdrDbgPrint[rip]
 615 #endif
 616
 617     /* Save page fault address */
 618     mov rdx, cr2
 619     mov [rbp  + KTRAP_FRAME_FaultAddress], rdx
 620
 621     /* Call page fault handler */
 622     mov ecx, [rbp + KTRAP_FRAME_ErrorCode] // StoreInstruction
 623     and ecx, 1
 624     // rdx == Address
 625     mov r8b, [rbp + KTRAP_FRAME_SegCs] // Mode
 626     and r8b, 1
 627     mov r9, rbp // TrapInformation
 628     call _MmAccessFault
 629
 630     /* Check for success */
 631     test eax, eax
 632     jge PageFaultReturn
 633
 634     /* Set parameter 1 to error code */
 635     mov r9d, [rbp + KTRAP_FRAME_ErrorCode]
 636
 637     /* Set parameter2 to faulting address */
 638     mov r10, cr2  // Param2 = faulting address
 639
 640     cmp eax, STATUS_ACCESS_VIOLATION
 641     je AccessViolation
 642     cmp eax, STATUS_GUARD_PAGE_VIOLATION
 643     je SpecialCode
 644     cmp eax, STATUS_STACK_OVERFLOW
 645     je SpecialCode
 646
 647 InPageException:
 648     /* Dispatch in-page exception */
 649     mov r11d, eax // Param3 = Status
 650     mov eax, STATUS_IN_PAGE_ERROR // ExceptionCode
 651     mov edx, 3    // ParamCount
 652     call _InternalDispatchException
 653     jmp PageFaultReturn
 654
 655 AccessViolation:
 656     /* Use more proper status code */
 657     mov eax, KI_EXCEPTION_ACCESS_VIOLATION
 658
 659 SpecialCode:
 660     /* Setup a normal page fault exception */
 661     mov edx, 2   // ParamCount
 662     call _InternalDispatchException
 663
 664 PageFaultReturn:
 665     LEAVE_TRAP_FRAME;
 666     iretq
 667 .endproc
 668
 669
 670 .proc KiFloatingErrorFault
 671     .pushframe 0
 672     /* Push pseudo error code */
 673     push 0
 674     .allocstack 0x8
 675
 676     UNIMPLEMENTED KiFloatingErrorFault
 677
 678     jmp $
 679 .endproc
 680
 681 .proc KiAlignmentFault
 682     .pushframe 1
 683     /* We have an error code */
 684
 685     UNIMPLEMENTED KiAlignmentFault
 686
 687     jmp $
 688 .endproc
 689
 690 .proc KiMcheckAbort
 691     .pushframe 0
 692     /* Push pseudo error code */
 693     push 0
 694     .allocstack 0x08
 695
 696     UNIMPLEMENTED KiMcheckAbort
 697
 698     jmp $
 699 .endproc
 700
 701 .proc KiXmmException
 702     .pushframe 0
 703     /* Push pseudo error code */
 704     push 0
 705     .allocstack 0x08
 706
 707     UNIMPLEMENTED KiXmmException
 708
 709     jmp $
 710 .endproc
 711
 712 .proc KiApcInterrupt
 713     .pushframe 1
 714
 715     UNIMPLEMENTED KiApcInterrupt
 716
 717     jmp $
 718 .endproc
 719
 720 .proc KiRaiseAssertion
 721     .pushframe 1
 722
 723     UNIMPLEMENTED KiRaiseAssertion
 724
 725     jmp $
 726 .endproc
 727
 728 .proc KiDebugServiceTrap
 729     .pushframe 0
 730     /* Push pseudo error code */
 731     push 0
 732     .allocstack 0x08
 733
 734     ENTER_TRAP_FRAME TRAPFLAG_ALL
 735
 736     TRAPINFO KiDebugServiceTrap
 737
 738     /* Increase Rip to skip the int3 */
 739     inc qword ptr [rbp + KTRAP_FRAME_Rip]
 740
 741     /* Dispatch the exception */
 742     mov eax, STATUS_BREAKPOINT
 743     mov edx, 3
 744     mov r9, [rbp+KTRAP_FRAME_Rax] // Service
 745     mov r10, [rbp+KTRAP_FRAME_Rcx] // Buffer
 746     mov r11, [rbp+KTRAP_FRAME_Rdx] // Length
 747     call _InternalDispatchException
 748
 749     LEAVE_TRAP_FRAME;
 750     iretq
 751 .endproc
 752
 753
 754 .proc KiDpcInterrupt
 755     .pushframe 1
 756
 757     UNIMPLEMENTED KiDpcInterrupt
 758
 759     jmp $
 760 .endproc
 761
 762
 763 .proc KiIpiInterrupt
 764     .pushframe 1
 765
 766     UNIMPLEMENTED KiIpiInterrupt
 767
 768     jmp $
 769 .endproc
 770
 771
 772 .proc KiUnexpectedInterrupt
 773     .pushframe 0
 774     push 0
 775     .allocstack 0x8
 776
 777     lea rcx, _MsgUnexpectedInterrupt[rip]
 778     call _FrLdrDbgPrint[rip]
 779
 780     mov ecx, TRAP_CAUSE_UNKNOWN
 781 //    mov rdx, // The unexpected interrupt
 782 //    mov rdx, // The unknown floating-point exception
 783 //    mov r8, // The enabled and asserted status bits
 784     xor r9, r9 // Reserved
 785     mov [rbp + KTRAP_FRAME_P5], rbp // trap frame
 786     call _KeBugCheckWithTf
 787
 788 .endproc
 789
 790
 791 .proc KiSystemFatalException
 792
 793 .endproc
 794