ntoskrnl/ke/i386/trap.s

   1 /*
   2  * FILE:            ntoskrnl/ke/i386/trap.S
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PURPOSE:         System Traps, Entrypoints and Exitpoints
   5  * PROGRAMMER:      Alex Ionescu (alex@relsoft.net)
   6  *                  Timo Kreuzer (timo.kreuzer@reactos.org)
   7  * NOTE:            See asmmacro.S for the shared entry/exit code.
   8  */
   9
  10 /* INCLUDES ******************************************************************/
  11
  12 #include <asm.inc>
  13 #include <ks386.inc>
  14 #include <internal/i386/asmmacro.S>
  15
  16 MACRO(GENERATE_IDT_STUB, Number)
  17 idt _KiUnexpectedInterrupt&Number, INT_32_DPL0
  18 ENDM
  19
  20 MACRO(GENERATE_INT_HANDLER, Number)
  21 //.func KiUnexpectedInterrupt&Number
  22 _KiUnexpectedInterrupt&Number:
  23     push PRIMARY_VECTOR_BASE + Number
  24     jmp _KiEndUnexpectedRange@0
  25 //.endfunc
  26 ENDM
  27
  28 EXTERN _KiTrap02:PROC
  29
  30 /* GLOBALS *******************************************************************/
  31
  32 .data
  33 ASSUME nothing
  34
  35 .align 16
  36
  37 PUBLIC _KiIdt
  38 _KiIdt:
  39 /* This is the Software Interrupt Table that we handle in this file:        */
  40 idt _KiTrap00,         INT_32_DPL0  /* INT 00: Divide Error (#DE)           */
  41 idt _KiTrap01,         INT_32_DPL0  /* INT 01: Debug Exception (#DB)        */
  42 idt _KiTrap02,         INT_32_DPL0  /* INT 02: NMI Interrupt                */
  43 idt _KiTrap03,         INT_32_DPL3  /* INT 03: Breakpoint Exception (#BP)   */
  44 idt _KiTrap04,         INT_32_DPL3  /* INT 04: Overflow Exception (#OF)     */
  45 idt _KiTrap05,         INT_32_DPL0  /* INT 05: BOUND Range Exceeded (#BR)   */
  46 idt _KiTrap06,         INT_32_DPL0  /* INT 06: Invalid Opcode Code (#UD)    */
  47 idt _KiTrap07,         INT_32_DPL0  /* INT 07: Device Not Available (#NM)   */
  48 idt _KiTrap08,         INT_32_DPL0  /* INT 08: Double Fault Exception (#DF) */
  49 idt _KiTrap09,         INT_32_DPL0  /* INT 09: RESERVED                     */
  50 idt _KiTrap0A,         INT_32_DPL0  /* INT 0A: Invalid TSS Exception (#TS)  */
  51 idt _KiTrap0B,         INT_32_DPL0  /* INT 0B: Segment Not Present (#NP)    */
  52 idt _KiTrap0C,         INT_32_DPL0  /* INT 0C: Stack Fault Exception (#SS)  */
  53 idt _KiTrap0D,         INT_32_DPL0  /* INT 0D: General Protection (#GP)     */
  54 idt _KiTrap0E,         INT_32_DPL0  /* INT 0E: Page-Fault Exception (#PF)   */
  55 idt _KiTrap0F,         INT_32_DPL0  /* INT 0F: RESERVED                     */
  56 idt _KiTrap10,         INT_32_DPL0  /* INT 10: x87 FPU Error (#MF)          */
  57 idt _KiTrap11,         INT_32_DPL0  /* INT 11: Align Check Exception (#AC)  */
  58 idt _KiTrap0F,         INT_32_DPL0  /* INT 12: Machine Check Exception (#MC)*/
  59 idt _KiTrap0F,         INT_32_DPL0  /* INT 13: SIMD FPU Exception (#XF)     */
  60 REPEAT 22
  61 idt _KiTrap0F,         INT_32_DPL0  /* INT 14-29: UNDEFINED INTERRUPTS      */
  62 ENDR
  63 idt _KiGetTickCount,   INT_32_DPL3  /* INT 2A: Get Tick Count Handler       */
  64 idt _KiCallbackReturn, INT_32_DPL3  /* INT 2B: User-Mode Callback Return    */
  65 idt _KiRaiseAssertion, INT_32_DPL3  /* INT 2C: Debug Assertion Handler      */
  66 idt _KiDebugService,   INT_32_DPL3  /* INT 2D: Debug Service Handler        */
  67 idt _KiSystemService,  INT_32_DPL3  /* INT 2E: System Call Service Handler  */
  68 idt _KiTrap0F,         INT_32_DPL0  /* INT 2F: RESERVED                     */
  69 i = 0
  70 REPEAT 208
  71     GENERATE_IDT_STUB %i
  72     i = i + 1
  73 ENDR
  74
  75 PUBLIC _KiIdtDescriptor
  76 _KiIdtDescriptor:
  77     .short 0
  78     .short HEX(7FF)
  79     .long _KiIdt
  80
  81 PUBLIC _KiUnexpectedEntrySize
  82 _KiUnexpectedEntrySize:
  83     .long _KiUnexpectedInterrupt1 - _KiUnexpectedInterrupt0
  84
  85 /******************************************************************************/
  86 .code
  87
  88 TRAP_ENTRY KiTrap00, KI_PUSH_FAKE_ERROR_CODE
  89 TRAP_ENTRY KiTrap01, KI_PUSH_FAKE_ERROR_CODE
  90 TRAP_ENTRY KiTrap03, KI_PUSH_FAKE_ERROR_CODE
  91 TRAP_ENTRY KiTrap04, KI_PUSH_FAKE_ERROR_CODE
  92 TRAP_ENTRY KiTrap05, KI_PUSH_FAKE_ERROR_CODE
  93 TRAP_ENTRY KiTrap06, KI_PUSH_FAKE_ERROR_CODE
  94 TRAP_ENTRY KiTrap07, KI_PUSH_FAKE_ERROR_CODE
  95 TRAP_ENTRY KiTrap08, 0
  96 TRAP_ENTRY KiTrap09, KI_PUSH_FAKE_ERROR_CODE
  97 TRAP_ENTRY KiTrap0A, 0
  98 TRAP_ENTRY KiTrap0B, 0
  99 TRAP_ENTRY KiTrap0C, 0
 100 TRAP_ENTRY KiTrap0D, 0
 101 TRAP_ENTRY KiTrap0E, 0
 102 TRAP_ENTRY KiTrap0F, KI_PUSH_FAKE_ERROR_CODE
 103 TRAP_ENTRY KiTrap10, KI_PUSH_FAKE_ERROR_CODE
 104 TRAP_ENTRY KiTrap11, KI_PUSH_FAKE_ERROR_CODE
 105 TRAP_ENTRY KiTrap13, KI_PUSH_FAKE_ERROR_CODE
 106 TRAP_ENTRY KiGetTickCount, KI_PUSH_FAKE_ERROR_CODE
 107 TRAP_ENTRY KiCallbackReturn, KI_PUSH_FAKE_ERROR_CODE
 108 TRAP_ENTRY KiRaiseAssertion, KI_PUSH_FAKE_ERROR_CODE
 109 TRAP_ENTRY KiDebugService, KI_PUSH_FAKE_ERROR_CODE
 110 TRAP_ENTRY KiUnexpectedInterruptTail, 0
 111
 112 ALIGN 4
 113 EXTERN @KiInterruptTemplateHandler@8:PROC
 114 PUBLIC _KiInterruptTemplate
 115 _KiInterruptTemplate:
 116     KiEnterTrap KI_PUSH_FAKE_ERROR_CODE
 117 PUBLIC _KiInterruptTemplate2ndDispatch
 118 _KiInterruptTemplate2ndDispatch:
 119     mov edx, 0
 120 PUBLIC _KiInterruptTemplateObject
 121 _KiInterruptTemplateObject:
 122     mov eax, offset @KiInterruptTemplateHandler@8
 123     jmp eax
 124 PUBLIC _KiInterruptTemplateDispatch
 125 _KiInterruptTemplateDispatch:
 126
 127 EXTERN @KiSystemServiceHandler@8:PROC
 128 PUBLIC _KiSystemService
 129 _KiSystemService:
 130     KiEnterTrap (KI_PUSH_FAKE_ERROR_CODE OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
 131     KiCallHandler @KiSystemServiceHandler@8
 132
 133 EXTERN @KiFastCallEntryHandler@8:PROC
 134 PUBLIC _KiFastCallEntry
 135 _KiFastCallEntry:
 136     KiEnterTrap (KI_FAST_SYSTEM_CALL OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
 137     KiCallHandler @KiFastCallEntryHandler@8
 138
 139 PUBLIC _KiStartUnexpectedRange@0
 140 _KiStartUnexpectedRange@0:
 141 i = 0
 142 REPEAT 208
 143     GENERATE_INT_HANDLER %i
 144     i = i + 1
 145 ENDR
 146 PUBLIC _KiEndUnexpectedRange@0
 147 _KiEndUnexpectedRange@0:
 148     jmp _KiUnexpectedInterruptTail
 149
 150
 151 /* EXIT CODE *****************************************************************/
 152
 153 KiTrapExitStub KiSystemCallReturn,        (KI_RESTORE_EAX OR KI_RESTORE_EFLAGS OR KI_EXIT_JMP)
 154 KiTrapExitStub KiSystemCallSysExitReturn, (KI_RESTORE_EAX OR KI_RESTORE_FS OR KI_RESTORE_EFLAGS OR KI_EXIT_SYSCALL)
 155 KiTrapExitStub KiSystemCallTrapReturn,    (KI_RESTORE_EAX OR KI_RESTORE_FS OR KI_EXIT_IRET)
 156
 157 KiTrapExitStub KiEditedTrapReturn,        (KI_RESTORE_VOLATILES OR KI_RESTORE_EFLAGS OR KI_EDITED_FRAME OR KI_EXIT_RET)
 158 KiTrapExitStub KiTrapReturn,              (KI_RESTORE_VOLATILES OR KI_RESTORE_SEGMENTS OR KI_EXIT_IRET)
 159 KiTrapExitStub KiTrapReturnNoSegments,    (KI_RESTORE_VOLATILES OR KI_EXIT_IRET)
 160
 161 #ifdef _MSC_VER
 162 EXTERN _PsConvertToGuiThread@0:PROC
 163
 164 PUBLIC _KiConvertToGuiThread@0
 165 _KiConvertToGuiThread@0:
 166     /* Calculate the stack frame offset in ebx */
 167     mov ebx, ebp
 168     sub ebx, esp
 169
 170     /* Call the worker function */
 171     call _PsConvertToGuiThread@0
 172
 173     /* Adjust ebp to the new stack */
 174     mov ebp, esp
 175     add ebp, ebx
 176
 177     /* return to the caller */
 178     ret
 179 #endif
 180
 181 END