[ion] 25020: - Implement V86 trap fixup during traps and interrupts. - Implement DR register save/restore during traps, interrupts and system calls. - Remove respective entry from krnlfun.c.
2 Dec
2006
2 Dec
'06
8:49 p.m.
Author: ion
Date: Sat Dec 2 23:49:56 2006
New Revision: 25020
URL: http://svn.reactos.org/svn/reactos?rev=25020&view=rev
Log:
- Implement V86 trap fixup during traps and interrupts.
- Implement DR register save/restore during traps, interrupts and system calls.
- Remove respective entry from krnlfun.c.
Modified:
trunk/reactos/include/ndk/asm.h
trunk/reactos/ntoskrnl/KrnlFun.c
trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S
trunk/reactos/ntoskrnl/ke/i386/trap.s
Modified: trunk/reactos/include/ndk/asm.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/asm.h?rev=2502…
==============================================================================
--- trunk/reactos/include/ndk/asm.h (original)
+++ trunk/reactos/include/ndk/asm.h Sat Dec 2 23:49:56 2006
@@ -135,6 +135,16 @@
#define KPROCESS_IOPM_OFFSET 0x30
#define KPROCESS_ACTIVE_PROCESSORS 0x34
#define EPROCESS_VDM_OBJECTS 0x144
+
+//
+// KPRCB Offsets
+//
+#define KPRCB_DR0 0x2F8
+#define KPRCB_DR1 0x2FC
+#define KPRCB_DR2 0x300
+#define KPRCB_DR3 0x304
+#define KPRCB_DR6 0x308
+#define KPRCB_DR7 0x20C
//
// KPCR Offsets
Modified: trunk/reactos/ntoskrnl/KrnlFun.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/KrnlFun.c?rev=250…
==============================================================================
--- trunk/reactos/ntoskrnl/KrnlFun.c (original)
+++ trunk/reactos/ntoskrnl/KrnlFun.c Sat Dec 2 23:49:56 2006
@@ -28,7 +28,6 @@
//
// Ke:
// - Figure out why the DPC stack doesn't really work.
-// - Add DR macro/save and VM macro/save.
// - New optimized table-based tick-hashed timer implementation.
// - New Thread Scheduler based on 2003.
// - Implement KiCallbackReturn, KiGetTickCount, KiRaiseAssertion.
Modified: trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S (original)
+++ trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S Sat Dec 2 23:49:56 2006
@@ -187,6 +187,104 @@
.endm
//
+// @name V86_TRAP_FIXUP
+//
+// This macro sets up the debug header in the trap frame.
+//
+// @param None.
+//
+// @remark ebp = PKTRAP_FRAME
+//
+.macro V86_TRAP_FIXUP
+ /* Get V86 segment registers */
+ mov eax, [ebp+KTRAP_FRAME_V86_FS]
+ mov ebx, [ebp+KTRAP_FRAME_V86_GS]
+ mov ecx, [ebp+KTRAP_FRAME_V86_ES]
+ mov edx, [ebp+KTRAP_FRAME_V86_DS]
+
+ /* Restore them into Protected Mode trap frame */
+ mov [ebp+KTRAP_FRAME_FS], ax
+ mov [ebp+KTRAP_FRAME_GS], bx
+ mov [ebp+KTRAP_FRAME_ES], cx
+ mov [ebp+KTRAP_FRAME_DS], dx
+
+ /* Go back to mainline code */
+ jmp 1f
+.endm
+
+//
+// @name DR_TRAP_FIXUP
+//
+// This macro sets up the debug header in the trap frame.
+//
+// @param None.
+//
+// @remark ebp = PKTRAP_FRAME
+//
+.macro DR_TRAP_FIXUP
+ /* Check if this was V86 mode */
+ test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
+ jnz 2f
+
+ /* Check if it was user mode */
+ test byte ptr [ebp+KTRAP_FRAME_CS], MODE_MASK
+ jz 3f
+
+2:
+ /* Get DR0, 1, 2 */
+ mov ebx, dr0
+ mov ecx, dr1
+ mov edi, dr2
+
+ /* Save them */
+ mov [ebp+KTRAP_FRAME_DR0], ebx
+ mov [ebp+KTRAP_FRAME_DR1], ecx
+ mov [ebp+KTRAP_FRAME_DR2], edi
+
+ /* Get DR3, 6, 7 */
+ mov ebx, dr0
+ mov ecx, dr1
+ mov edi, dr2
+
+ /* Save them */
+ mov [ebp+KTRAP_FRAME_DR3], ebx
+ mov [ebp+KTRAP_FRAME_DR6], ecx
+ mov [ebp+KTRAP_FRAME_DR7], edi
+
+ /* Clear DR7 */
+ xor ebx, ebx
+ mov dr7, ebx
+
+ /* Get the PRCB */
+ mov edi, PCR[KPCR_PRCB]
+
+ /* Get DR0, 1 */
+ mov ebx, [edi+KPRCB_DR0]
+ mov ecx, [edi+KPRCB_DR1]
+
+ /* Set them */
+ mov dr0, ebx
+ mov dr1, ecx
+
+ /* Get DR2, 3 */
+ mov ebx, [edi+KPRCB_DR2]
+ mov ecx, [edi+KPRCB_DR3]
+
+ /* Set them */
+ mov dr2, ebx
+ mov dr3, ecx
+
+ /* Get DR6, 7 */
+ mov ebx, [edi+KPRCB_DR6]
+ mov ecx, [edi+KPRCB_DR7]
+
+ /* Set them */
+ mov dr6, ebx
+ mov dr7, ecx
+ jz 3f
+.endm
+
+//
// @name SET_TF_DEBUG_HEADER
//
// This macro sets up the debug header in the trap frame.
@@ -315,6 +413,7 @@
/* Save FS and set it to PCR */
push fs
mov ebx, KGDT_R0_PCR
+ .byte 0x66
mov fs, bx
/* Save exception list and bogus previous mode */
@@ -336,16 +435,23 @@
sub esp, 0x30
/* Load the segment registers */
+ .byte 0x66
mov ds, ax
+ .byte 0x66
mov es, ax
+
+ /* Check if this interrupt happened in 16-bit mode */
+ cmp esp, 0x10000
+ jb _Ki16BitStackException
/* Set up frame */
mov ebp, esp
/* Check if this was from V86 Mode */
- /* test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK; */
- /* jnz V86_Label; */
-
+ test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
+ jnz V86_&Label
+
+1:
/* Get current thread */
mov ecx, [fs:KPCR_CURRENT_THREAD]
cld
@@ -353,9 +459,10 @@
/* Flush DR7 */
and dword ptr [ebp+KTRAP_FRAME_DR7], 0
+3:
/* Check if the thread was being debugged */
- /* test byte ptr [ecx+KTHREAD_DEBUG_ACTIVE], 0xFF; */
- /* jnz Dr_Label; */
+ test byte ptr [ecx+KTHREAD_DEBUG_ACTIVE], 0xFF
+ jnz Dr_&Label
/* Set the Trap Frame Debug Header */
SET_TF_DEBUG_HEADER
@@ -399,10 +506,11 @@
mov dword ptr [esp+KTRAP_FRAME_PREVIOUS_MODE], -1
/* Check if this was from V86 Mode */
- /* test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK */
- /* jnz V86_&Label*/
+ test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
+ jnz V86_&Label
/* Check if this was kernel mode */
+1:
cmp dword ptr [esp+KTRAP_FRAME_CS], KGDT_R0_CODE
jz 1f
@@ -463,9 +571,10 @@
.endif
/* Save DR registers if needed */
- //jnz Dr_&Label
+ jnz Dr_&Label
/* Set the trap frame debug header */
+3:
SET_TF_DEBUG_HEADER
.endm
@@ -484,7 +593,7 @@
//
// @remark None.
//
-.macro SYSCALL_PROLOG
+.macro SYSCALL_PROLOG Label
/* Create a trap frame */
push 0
push ebp
@@ -495,6 +604,7 @@
/* Load PCR Selector into fs */
mov ebx, KGDT_R0_PCR
+ .byte 0x66
mov fs, bx
/* Get a pointer to the current thread */
@@ -507,19 +617,15 @@
mov dword ptr [fs:KPCR_EXCEPTION_LIST], -1
/* Save the old previous mode */
- push ss:[esi+KTHREAD_PREVIOUS_MODE]
+ push [esi+KTHREAD_PREVIOUS_MODE]
/* Skip the other registers */
sub esp, 0x48
-
- /* Hack: it seems that on VMWare someone damages ES/DS on exit. Investigate! */
- mov [esp+KTRAP_FRAME_DS], ds
- mov [esp+KTRAP_FRAME_ES], es
/* Set the new previous mode based on the saved CS selector */
mov ebx, [esp+0x6C]
and ebx, 1
- mov byte ptr ss:[esi+KTHREAD_PREVIOUS_MODE], bl
+ mov byte ptr [esi+KTHREAD_PREVIOUS_MODE], bl
/* Go on the Kernel stack frame */
mov ebp, esp
@@ -539,9 +645,108 @@
cld
/* Save DR registers if needed */
- //jnz Dr_kss_&Label
+ jnz Dr_&Label
/* Set the trap frame debug header */
+3:
+ SET_TF_DEBUG_HEADER
+
+ /* Enable interrupts */
+ sti
+.endm
+
+//
+// @name FASTCALL_PROLOG
+//
+// TODO
+//
+// @param Label
+// Unique label identifying the name of the caller function; will be
+// used to append to the name of the DR helper function, which must
+// already exist.
+//
+// @remark None.
+//
+.macro FASTCALL_PROLOG Label
+ /* Set FS to PCR */
+ mov ecx, KGDT_R0_PCR
+ mov fs, cx
+ //push KGDT_R0_PCR
+ //pop fs
+
+ /* Set user selector */
+ mov ecx, KGDT_R3_DATA | RPL_MASK
+
+ /* Set DS/ES to User Selector */
+ mov ds, cx
+ mov es, cx
+
+ /* Set the current stack to Kernel Stack */
+ mov ecx, [fs:KPCR_TSS]
+ mov esp, [ecx+KTSS_ESP0]
+
+ /* Set up a fake INT Stack. */
+ push KGDT_R3_DATA + RPL_MASK
+ push edx /* Ring 3 SS:ESP */
+ pushf /* Ring 3 EFLAGS */
+ push 2 /* Ring 0 EFLAGS */
+ add edx, 8 /* Skip user parameter list */
+ popf /* Set our EFLAGS */
+ or dword ptr [esp], EFLAGS_INTERRUPT_MASK /* Re-enable IRQs in EFLAGS, to fake INT
*/
+ push KGDT_R3_CODE + RPL_MASK
+ push dword ptr ds:KUSER_SHARED_SYSCALL_RET
+
+ /* Setup the Trap Frame stack */
+ push 0
+ push ebp
+ push ebx
+ push esi
+ push edi
+ push KGDT_R3_TEB + RPL_MASK
+
+ /* Save pointer to our PCR */
+ mov ebx, [fs:KPCR_SELF]
+
+ /* Get a pointer to the current thread */
+ mov esi, [ebx+KPCR_CURRENT_THREAD]
+
+ /* Set the exception handler chain terminator */
+ push [ebx+KPCR_EXCEPTION_LIST]
+ mov dword ptr [ebx+KPCR_EXCEPTION_LIST], -1
+
+ /* Use the thread's stack */
+ mov ebp, [esi+KTHREAD_INITIAL_STACK]
+
+ /* Push previous mode */
+ push UserMode
+
+ /* Skip the other registers */
+ sub esp, 0x48
+
+ /* Make space for us on the stack */
+ sub ebp, 0x29C
+
+ /* Write the previous mode */
+ mov byte ptr [esi+KTHREAD_PREVIOUS_MODE], UserMode
+
+ /* Sanity check */
+ cmp ebp, esp
+ jnz BadStack
+
+ /* Flush DR7 */
+ and dword ptr [ebp+KTRAP_FRAME_DR7], 0
+
+ /* Check if the thread was being debugged */
+ test byte ptr [esi+KTHREAD_DEBUG_ACTIVE], 0xFF
+
+ /* Set the thread's trap frame */
+ mov [esi+KTHREAD_TRAP_FRAME], ebp
+
+ /* Save DR registers if needed */
+ jnz Dr_&Label
+
+ /* Set the trap frame debug header */
+3:
SET_TF_DEBUG_HEADER
/* Enable interrupts */
@@ -966,6 +1171,13 @@
mov esi, [esp+KTRAP_FRAME_EIP]
mov [ebx], esi
+.if \RestoreVolatiles
+ /* Restore volatiles */
+ mov eax, [esp+KTRAP_FRAME_EAX]
+ mov edx, [esp+KTRAP_FRAME_EDX]
+ mov ecx, [esp+KTRAP_FRAME_ECX]
+.endif
+
/* Return */
add esp, KTRAP_FRAME_EDI
pop edi
Modified: trunk/reactos/ntoskrnl/ke/i386/trap.s
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/trap.s?re…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/trap.s (original)
+++ trunk/reactos/ntoskrnl/ke/i386/trap.s Sat Dec 2 23:49:56 2006
@@ -96,100 +96,22 @@
int 3
.func KiSystemService
+Dr_kss: DR_TRAP_FIXUP
_KiSystemService:
/* Enter the shared system call prolog */
- SYSCALL_PROLOG
+ SYSCALL_PROLOG kss
/* Jump to the actual handler */
jmp SharedCode
.endfunc
.func KiFastCallEntry
+Dr_FastCallDrSave: DR_TRAP_FIXUP
_KiFastCallEntry:
- /* Set FS to PCR */
- mov ecx, KGDT_R0_PCR
- mov fs, cx
- //push KGDT_R0_PCR
- //pop fs
-
- /* Set user selector */
- mov ecx, KGDT_R3_DATA | RPL_MASK
-
- /* Set DS/ES to User Selector */
- mov ds, cx
- mov es, cx
-
- /* Set the current stack to Kernel Stack */
- mov ecx, [fs:KPCR_TSS]
- mov esp, ss:[ecx+KTSS_ESP0]
-
- /* Set up a fake INT Stack. */
- push KGDT_R3_DATA + RPL_MASK
- push edx /* Ring 3 SS:ESP */
- pushf /* Ring 3 EFLAGS */
- push 2 /* Ring 0 EFLAGS */
- add edx, 8 /* Skip user parameter list */
- popf /* Set our EFLAGS */
- or dword ptr [esp], EFLAGS_INTERRUPT_MASK /* Re-enable IRQs in EFLAGS, to fake INT
*/
- push KGDT_R3_CODE + RPL_MASK
- push dword ptr ds:KUSER_SHARED_SYSCALL_RET
-
- /* Setup the Trap Frame stack */
- push 0
- push ebp
- push ebx
- push esi
- push edi
- push KGDT_R3_TEB + RPL_MASK
-
- /* Save pointer to our PCR */
- mov ebx, [fs:KPCR_SELF]
-
- /* Get a pointer to the current thread */
- mov esi, [ebx+KPCR_CURRENT_THREAD]
-
- /* Set the exception handler chain terminator */
- push [ebx+KPCR_EXCEPTION_LIST]
- mov dword ptr [ebx+KPCR_EXCEPTION_LIST], -1
-
- /* Use the thread's stack */
- mov ebp, [esi+KTHREAD_INITIAL_STACK]
-
- /* Push previous mode */
- push UserMode
-
- /* Skip the other registers */
- sub esp, 0x48
-
- /* Make space for us on the stack */
- sub ebp, 0x29C
-
- /* Write the previous mode */
- mov byte ptr [esi+KTHREAD_PREVIOUS_MODE], UserMode
-
- /* Sanity check */
- cmp ebp, esp
- jnz BadStack
-
- /* Flush DR7 */
- and dword ptr [ebp+KTRAP_FRAME_DR7], 0
-
- /* Check if the thread was being debugged */
- test byte ptr [esi+KTHREAD_DEBUG_ACTIVE], 0xFF
-
- /* Set the thread's trap frame */
- mov [esi+KTHREAD_TRAP_FRAME], ebp
-
- /* Save DR registers if needed */
- //jnz Dr_FastCallDrSave
-
- /* Set the trap frame debug header */
- SET_TF_DEBUG_HEADER
-
- /* Enable interrupts */
- sti
+ /* Enter the fast system call prolog */
+ FASTCALL_PROLOG FastCallDrSave
SharedCode:
@@ -514,13 +436,15 @@
int 3
.func KiDebugService
+Dr_kids: DR_TRAP_FIXUP
+V86_kids: V86_TRAP_FIXUP
_KiDebugService:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(kids)
+ TRAP_PROLOG kids
/* Increase EIP so we skip the INT3 */
//inc dword ptr [ebp+KTRAP_FRAME_EIP]
@@ -749,12 +673,14 @@
/* HARDWARE TRAP HANDLERS ****************************************************/
.func KiTrap0
+Dr_kit0: DR_TRAP_FIXUP
+V86_kit0: V86_TRAP_FIXUP
_KiTrap0:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(0)
+ TRAP_PROLOG kit0
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
@@ -788,12 +714,14 @@
.endfunc
.func KiTrap1
+Dr_kit1: DR_TRAP_FIXUP
+V86_kit1: V86_TRAP_FIXUP
_KiTrap1:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(1)
+ TRAP_PROLOG kit1
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
@@ -839,12 +767,14 @@
.endfunc
.func KiTrap3
+Dr_kit3: DR_TRAP_FIXUP
+V86_kit3: V86_TRAP_FIXUP
_KiTrap3:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(3)
+ TRAP_PROLOG kit3
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
@@ -887,12 +817,14 @@
.endfunc
.func KiTrap4
+Dr_kit4: DR_TRAP_FIXUP
+V86_kit4: V86_TRAP_FIXUP
_KiTrap4:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(4)
+ TRAP_PROLOG kit4
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
@@ -927,12 +859,14 @@
.endfunc
.func KiTrap5
+Dr_kit5: DR_TRAP_FIXUP
+V86_kit5: V86_TRAP_FIXUP
_KiTrap5:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(5)
+ TRAP_PROLOG kit5
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
@@ -971,6 +905,8 @@
.endfunc
.func KiTrap6
+Dr_kit6: DR_TRAP_FIXUP
+V86_kit6: V86_TRAP_FIXUP
_KiTrap6:
/* It this a V86 GPF? */
@@ -989,7 +925,7 @@
push 0
/* Enter trap */
- TRAP_PROLOG(6)
+ TRAP_PROLOG kit6
/* Check if this happened in kernel mode */
test byte ptr [ebp+KTRAP_FRAME_CS], MODE_MASK
@@ -1086,12 +1022,14 @@
.endfunc
.func KiTrap7
+Dr_kit7: DR_TRAP_FIXUP
+V86_kit7: V86_TRAP_FIXUP
_KiTrap7:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(7)
+ TRAP_PROLOG kit7
/* Get the current thread and stack */
StartTrapHandle:
@@ -1405,12 +1343,14 @@
.endfunc
.func KiTrap9
+Dr_kit9: DR_TRAP_FIXUP
+V86_kit9: V86_TRAP_FIXUP
_KiTrap9:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(9)
+ TRAP_PROLOG kit9
/* Enable interrupts and bugcheck */
sti
@@ -1419,9 +1359,11 @@
.endfunc
.func KiTrap10
+Dr_kit10: DR_TRAP_FIXUP
+V86_kit10: V86_TRAP_FIXUP
_KiTrap10:
/* Enter trap */
- TRAP_PROLOG(10)
+ TRAP_PROLOG kit10
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
@@ -1448,9 +1390,11 @@
.endfunc
.func KiTrap11
+Dr_kit11: DR_TRAP_FIXUP
+V86_kit11: V86_TRAP_FIXUP
_KiTrap11:
/* Enter trap */
- TRAP_PROLOG(11)
+ TRAP_PROLOG kit11
/* FIXME: ROS Doesn't handle segment faults yet */
mov eax, 11
@@ -1458,9 +1402,11 @@
.endfunc
.func KiTrap12
+Dr_kit12: DR_TRAP_FIXUP
+V86_kit12: V86_TRAP_FIXUP
_KiTrap12:
/* Enter trap */
- TRAP_PROLOG(12)
+ TRAP_PROLOG kit12
/* FIXME: ROS Doesn't handle stack faults yet */
mov eax, 12
@@ -1468,6 +1414,8 @@
.endfunc
.func KiTrap13
+Dr_kitd: DR_TRAP_FIXUP
+V86_kitd: V86_TRAP_FIXUP
_KiTrap13:
/* It this a V86 GPF? */
@@ -1531,7 +1479,7 @@
NotV86:
/* Enter trap */
- TRAP_PROLOG(13)
+ TRAP_PROLOG kitd
/* Check if this was from kernel-mode */
test dword ptr [ebp+KTRAP_FRAME_CS], MODE_MASK
@@ -1678,9 +1626,11 @@
.endfunc
.func KiTrap14
+Dr_kit14: DR_TRAP_FIXUP
+V86_kit14: V86_TRAP_FIXUP
_KiTrap14:
/* Enter trap */
- TRAP_PROLOG(14)
+ TRAP_PROLOG kit14
/* Call the C exception handler */
push 14
@@ -1693,12 +1643,14 @@
.endfunc
.func KiTrap0F
+Dr_kit15: DR_TRAP_FIXUP
+V86_kit15: V86_TRAP_FIXUP
_KiTrap0F:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(15)
+ TRAP_PROLOG kit15
sti
/* Raise a fatal exception */
@@ -1707,12 +1659,14 @@
.endfunc
.func KiTrap16
+Dr_kit16: DR_TRAP_FIXUP
+V86_kit16: V86_TRAP_FIXUP
_KiTrap16:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(16)
+ TRAP_PROLOG kit16
/* Check if this is the NPX Thread */
mov eax, fs:[KPCR_CURRENT_THREAD]
@@ -1732,12 +1686,14 @@
.endfunc
.func KiTrap17
+Dr_kit17: DR_TRAP_FIXUP
+V86_kit17: V86_TRAP_FIXUP
_KiTrap17:
/* Push error code */
push 0
/* Enter trap */
- TRAP_PROLOG(17)
+ TRAP_PROLOG kit17
/* FIXME: ROS Doesn't handle alignment faults yet */
mov eax, 17
@@ -1784,6 +1740,22 @@
ret
.endfunc
+.func Ki16BitStackException
+_Ki16BitStackException:
+
+ /* Save stack */
+ push ss
+ push esp
+
+ /* Go to kernel mode thread stack */
+ mov eax, fs:[KPCR_CURRENT_THREAD]
+ add esp, [eax+KTHREAD_INITIAL_STACK]
+
+ /* Switch to good stack segment */
+ /* TODO */
+ int 3
+.endfunc
+
/* UNEXPECTED INTERRUPT HANDLERS **********************************************/
.globl _KiStartUnexpectedRange@0
@@ -1796,6 +1768,8 @@
jmp _KiUnexpectedInterruptTail
.func KiUnexpectedInterruptTail
+V86_kui: V86_TRAP_FIXUP
+Dr_kui: DR_TRAP_FIXUP
_KiUnexpectedInterruptTail:
/* Enter interrupt trap */
@@ -1907,6 +1881,8 @@
.endfunc
.func KiInterruptTemplate
+V86_kit: V86_TRAP_FIXUP
+Dr_kit: DR_TRAP_FIXUP
_KiInterruptTemplate:
/* Enter interrupt trap */
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