reactos/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, Vector)
  17 idt _KiUnexpectedInterrupt&Vector, INT_32_DPL0
  18 ENDM
  19
  20 MACRO(GENERATE_INT_HANDLER, Vector)
  21 //.func KiUnexpectedInterrupt&Number
  22 _KiUnexpectedInterrupt&Vector:
  23     /* This is a push instruction with 8bit operand. Since the instruction
  24        sign extends the value to 32 bits, we need to offset it */
  25     push (Vector - 128)
  26     jmp _KiEndUnexpectedRange@0
  27 //.endfunc
  28 ENDM
  29
  30 EXTERN _KiTrap02:PROC
  31
  32 /* GLOBALS *******************************************************************/
  33
  34 .data
  35 ASSUME nothing
  36
  37 .align 16
  38
  39 PUBLIC _KiIdt
  40 _KiIdt:
  41 /* This is the Software Interrupt Table that we handle in this file:        */
  42 idt _KiTrap00,         INT_32_DPL0  /* INT 00: Divide Error (#DE)           */
  43 idt _KiTrap01,         INT_32_DPL0  /* INT 01: Debug Exception (#DB)        */
  44 idt _KiTrap02,         INT_32_DPL0  /* INT 02: NMI Interrupt                */
  45 idt _KiTrap03,         INT_32_DPL3  /* INT 03: Breakpoint Exception (#BP)   */
  46 idt _KiTrap04,         INT_32_DPL3  /* INT 04: Overflow Exception (#OF)     */
  47 idt _KiTrap05,         INT_32_DPL0  /* INT 05: BOUND Range Exceeded (#BR)   */
  48 idt _KiTrap06,         INT_32_DPL0  /* INT 06: Invalid Opcode Code (#UD)    */
  49 idt _KiTrap07,         INT_32_DPL0  /* INT 07: Device Not Available (#NM)   */
  50 idt _KiTrap08,         INT_32_DPL0  /* INT 08: Double Fault Exception (#DF) */
  51 idt _KiTrap09,         INT_32_DPL0  /* INT 09: RESERVED                     */
  52 idt _KiTrap0A,         INT_32_DPL0  /* INT 0A: Invalid TSS Exception (#TS)  */
  53 idt _KiTrap0B,         INT_32_DPL0  /* INT 0B: Segment Not Present (#NP)    */
  54 idt _KiTrap0C,         INT_32_DPL0  /* INT 0C: Stack Fault Exception (#SS)  */
  55 idt _KiTrap0D,         INT_32_DPL0  /* INT 0D: General Protection (#GP)     */
  56 idt _KiTrap0E,         INT_32_DPL0  /* INT 0E: Page-Fault Exception (#PF)   */
  57 idt _KiTrap0F,         INT_32_DPL0  /* INT 0F: RESERVED                     */
  58 idt _KiTrap10,         INT_32_DPL0  /* INT 10: x87 FPU Error (#MF)          */
  59 idt _KiTrap11,         INT_32_DPL0  /* INT 11: Align Check Exception (#AC)  */
  60 idt _KiTrap0F,         INT_32_DPL0  /* INT 12: Machine Check Exception (#MC)*/
  61 idt _KiTrap0F,         INT_32_DPL0  /* INT 13: SIMD FPU Exception (#XF)     */
  62 REPEAT 22
  63 idt _KiTrap0F,         INT_32_DPL0  /* INT 14-29: UNDEFINED INTERRUPTS      */
  64 ENDR
  65 idt _KiGetTickCount,   INT_32_DPL3  /* INT 2A: Get Tick Count Handler       */
  66 idt _KiCallbackReturn, INT_32_DPL3  /* INT 2B: User-Mode Callback Return    */
  67 idt _KiRaiseAssertion, INT_32_DPL3  /* INT 2C: Debug Assertion Handler      */
  68 idt _KiDebugService,   INT_32_DPL3  /* INT 2D: Debug Service Handler        */
  69 idt _KiSystemService,  INT_32_DPL3  /* INT 2E: System Call Service Handler  */
  70 idt _KiTrap0F,         INT_32_DPL0  /* INT 2F: RESERVED                     */
  71 i = HEX(30)
  72 REPEAT 208
  73     GENERATE_IDT_STUB %i
  74     i = i + 1
  75 ENDR
  76
  77 PUBLIC _KiIdtDescriptor
  78 _KiIdtDescriptor:
  79     .short 0
  80     .short HEX(7FF)
  81     .long _KiIdt
  82
  83 PUBLIC _KiUnexpectedEntrySize
  84 _KiUnexpectedEntrySize:
  85     .long _KiUnexpectedInterrupt49 - _KiUnexpectedInterrupt48
  86
  87 /******************************************************************************/
  88 .code
  89
  90 PUBLIC _KiStartUnexpectedRange@0
  91 _KiStartUnexpectedRange@0:
  92 i = HEX(30)
  93 REPEAT 208
  94     GENERATE_INT_HANDLER %i
  95     i = i + 1
  96 ENDR
  97
  98 TRAP_ENTRY KiTrap00, KI_PUSH_FAKE_ERROR_CODE
  99 TRAP_ENTRY KiTrap01, KI_PUSH_FAKE_ERROR_CODE
 100 TRAP_ENTRY KiTrap03, KI_PUSH_FAKE_ERROR_CODE
 101 TRAP_ENTRY KiTrap04, KI_PUSH_FAKE_ERROR_CODE
 102 TRAP_ENTRY KiTrap05, KI_PUSH_FAKE_ERROR_CODE
 103 TRAP_ENTRY KiTrap06, KI_PUSH_FAKE_ERROR_CODE
 104 TRAP_ENTRY KiTrap07, KI_PUSH_FAKE_ERROR_CODE
 105 TRAP_ENTRY KiTrap08, 0
 106 TRAP_ENTRY KiTrap09, KI_PUSH_FAKE_ERROR_CODE
 107 TRAP_ENTRY KiTrap0A, 0
 108 TRAP_ENTRY KiTrap0B, 0
 109 TRAP_ENTRY KiTrap0C, 0
 110 TRAP_ENTRY KiTrap0D, 0
 111 TRAP_ENTRY KiTrap0E, 0
 112 TRAP_ENTRY KiTrap0F, KI_PUSH_FAKE_ERROR_CODE
 113 TRAP_ENTRY KiTrap10, KI_PUSH_FAKE_ERROR_CODE
 114 TRAP_ENTRY KiTrap11, KI_PUSH_FAKE_ERROR_CODE
 115 TRAP_ENTRY KiTrap13, KI_PUSH_FAKE_ERROR_CODE
 116 TRAP_ENTRY KiGetTickCount, KI_PUSH_FAKE_ERROR_CODE
 117 TRAP_ENTRY KiCallbackReturn, KI_PUSH_FAKE_ERROR_CODE
 118 TRAP_ENTRY KiRaiseAssertion, KI_PUSH_FAKE_ERROR_CODE
 119 TRAP_ENTRY KiDebugService, KI_PUSH_FAKE_ERROR_CODE
 120 TRAP_ENTRY KiUnexpectedInterruptTail, 0
 121
 122 ALIGN 4
 123 EXTERN @KiInterruptTemplateHandler@8:PROC
 124 PUBLIC _KiInterruptTemplate
 125 _KiInterruptTemplate:
 126     KiEnterTrap KI_PUSH_FAKE_ERROR_CODE
 127 PUBLIC _KiInterruptTemplate2ndDispatch
 128 _KiInterruptTemplate2ndDispatch:
 129     mov edx, 0
 130 PUBLIC _KiInterruptTemplateObject
 131 _KiInterruptTemplateObject:
 132     mov eax, offset @KiInterruptTemplateHandler@8
 133     jmp eax
 134 PUBLIC _KiInterruptTemplateDispatch
 135 _KiInterruptTemplateDispatch:
 136
 137 EXTERN @KiSystemServiceHandler@8:PROC
 138 PUBLIC _KiSystemService
 139 .PROC _KiSystemService
 140     FPO 0, 0, 0, 0, 1, FRAME_TRAP
 141     KiEnterTrap (KI_PUSH_FAKE_ERROR_CODE OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
 142     KiCallHandler @KiSystemServiceHandler@8
 143 .ENDP
 144
 145 PUBLIC _KiFastCallEntry
 146 .PROC _KiFastCallEntry
 147     FPO 0, 0, 0, 0, 1, FRAME_TRAP
 148     KiEnterTrap (KI_FAST_SYSTEM_CALL OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
 149     KiCallHandler @KiSystemServiceHandler@8
 150 .ENDP
 151
 152 PUBLIC _KiFastCallEntryWithSingleStep
 153 .PROC _KiFastCallEntryWithSingleStep
 154     FPO 0, 0, 0, 0, 1, FRAME_TRAP
 155     KiEnterTrap (KI_FAST_SYSTEM_CALL OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
 156     or dword ptr [ecx + KTRAP_FRAME_EFLAGS], EFLAGS_TF
 157     KiCallHandler @KiSystemServiceHandler@8
 158 .ENDP
 159
 160 PUBLIC _KiEndUnexpectedRange@0
 161 _KiEndUnexpectedRange@0:
 162     add dword ptr[esp], 128
 163     jmp _KiUnexpectedInterruptTail
 164
 165
 166 /* EXIT CODE *****************************************************************/
 167
 168 KiTrapExitStub KiSystemCallReturn,        (KI_RESTORE_EAX OR KI_RESTORE_EFLAGS OR KI_EXIT_JMP)
 169 KiTrapExitStub KiSystemCallSysExitReturn, (KI_RESTORE_EAX OR KI_RESTORE_FS OR KI_RESTORE_EFLAGS OR KI_EXIT_SYSCALL)
 170 KiTrapExitStub KiSystemCallTrapReturn,    (KI_RESTORE_EAX OR KI_RESTORE_FS OR KI_EXIT_IRET)
 171
 172 KiTrapExitStub KiEditedTrapReturn,        (KI_RESTORE_VOLATILES OR KI_RESTORE_EFLAGS OR KI_EDITED_FRAME OR KI_EXIT_RET)
 173 KiTrapExitStub KiTrapReturn,              (KI_RESTORE_VOLATILES OR KI_RESTORE_SEGMENTS OR KI_EXIT_IRET)
 174 KiTrapExitStub KiTrapReturnNoSegments,    (KI_RESTORE_VOLATILES OR KI_EXIT_IRET)
 175 KiTrapExitStub KiTrapReturnNoSegmentsRet8,(KI_RESTORE_VOLATILES OR KI_RESTORE_EFLAGS OR KI_EXIT_RET8)
 176
 177 #ifdef _MSC_VER
 178 EXTERN _PsConvertToGuiThread@0:PROC
 179
 180 PUBLIC _KiConvertToGuiThread@0
 181 _KiConvertToGuiThread@0:
 182     /* Safe ebx */
 183     push ebx
 184
 185     /* Calculate the stack frame offset in ebx */
 186     mov ebx, ebp
 187     sub ebx, esp
 188
 189     /* Call the worker function */
 190     call _PsConvertToGuiThread@0
 191
 192     /* Adjust ebp to the new stack */
 193     mov ebp, esp
 194     add ebp, ebx
 195
 196     /* Restore ebx */
 197     pop ebx
 198
 199     /* return to the caller */
 200     ret
 201 #endif
 202
 203 END