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https://github.com/reactos/reactos.git
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- New ISR Timeout detection code.
- New Interrupt Storm detection code. - Use PCR everywhere instead of fs:[ or [fs:. Significant improvements on UP builds because we use ds:[KPCRADDRESSS] for them. - Ongoing work. svn path=/trunk/; revision=26137
This commit is contained in:
Alex Ionescu
parent
42c0ac532c
commit
32ca724933
5 changed files with 245 additions and 78 deletions
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@ -222,10 +222,12 @@ Author:
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//
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#define KINTERRUPT_SERVICE_ROUTINE 0x0C
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#define KINTERRUPT_SERVICE_CONTEXT 0x10
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#define KINTERRUPT_TICK_COUNT 0x18
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#define KINTERRUPT_ACTUAL_LOCK 0x1C
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#define KINTERRUPT_IRQL 0x20
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#define KINTERRUPT_VECTOR 0x24
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#define KINTERRUPT_SYNCHRONIZE_IRQL 0x29
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#define KINTERRUPT_DISPATCH_COUNT 0x38
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//
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// KGDTENTRY Offsets
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@ -546,6 +548,7 @@ Author:
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#define IRQL_GT_ZERO_AT_SYSTEM_SERVICE 0x4A
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#define UNEXPECTED_KERNEL_MODE_TRAP 0x7F
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#define ATTEMPTED_SWITCH_FROM_DPC 0xB8
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#define HARDWARE_INTERRUPT_STORM 0xF2
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//
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// IRQL Levels
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@ -607,3 +610,4 @@ Author:
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#define MAXIMUM_IDTVECTOR 0xFF
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#endif // !_ASM_H
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@ -622,14 +622,14 @@ typedef struct _KINTERRUPT
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KSPIN_LOCK SpinLock;
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ULONG TickCount;
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PKSPIN_LOCK ActualLock;
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PVOID DispatchAddress;
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PKINTERRUPT_ROUTINE DispatchAddress;
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ULONG Vector;
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KIRQL Irql;
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KIRQL SynchronizeIrql;
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BOOLEAN FloatingSave;
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BOOLEAN Connected;
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CHAR Number;
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UCHAR ShareVector;
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CCHAR Number;
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BOOLEAN ShareVector;
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KINTERRUPT_MODE Mode;
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#if (NTDDI_VERSION >= NTDDI_LONGHORN)
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KINTERRUPT_POLARITY Polarity;
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@ -353,7 +353,7 @@ _KiUnexpectedInterrupt&Number:
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/* Get the current thread */
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1:
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mov ebx, [fs:KPCR_CURRENT_THREAD]
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mov ebx, PCR[KPCR_CURRENT_THREAD]
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/* Make it non-alerted */
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mov byte ptr [ebx+KTHREAD_ALERTED], 0
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@ -440,7 +440,7 @@ _KiUnexpectedInterrupt&Number:
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mov fs, bx
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/* Save exception list and bogus previous mode */
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push fs:[KPCR_EXCEPTION_LIST]
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push PCR[KPCR_EXCEPTION_LIST]
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push -1
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/* Save volatiles and segment registers */
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@ -476,7 +476,7 @@ _KiUnexpectedInterrupt&Number:
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1:
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/* Get current thread */
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mov ecx, [fs:KPCR_CURRENT_THREAD]
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mov ecx, PCR[KPCR_CURRENT_THREAD]
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cld
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/* Flush DR7 */
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@ -555,10 +555,10 @@ _KiUnexpectedInterrupt&Number:
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1:
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/* Get the previous exception list */
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mov ebx, [fs:KPCR_EXCEPTION_LIST]
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mov ebx, PCR[KPCR_EXCEPTION_LIST]
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/* Set the exception handler chain terminator */
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mov dword ptr [fs:KPCR_EXCEPTION_LIST], -1
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mov dword ptr PCR[KPCR_EXCEPTION_LIST], -1
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/* Save the previous exception list */
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mov [esp+KTRAP_FRAME_EXCEPTION_LIST], ebx
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@ -579,7 +579,7 @@ _KiUnexpectedInterrupt&Number:
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and dword ptr [esp+KTRAP_FRAME_ERROR_CODE], 0
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/* Get the current thread and clear direction flag */
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mov ecx, [fs:KPCR_CURRENT_THREAD]
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mov ecx, PCR[KPCR_CURRENT_THREAD]
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cld
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/* Flush DR7 */
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@ -631,13 +631,13 @@ _KiUnexpectedInterrupt&Number:
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mov fs, bx
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/* Get a pointer to the current thread */
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mov esi, [fs:KPCR_CURRENT_THREAD]
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mov esi, PCR[KPCR_CURRENT_THREAD]
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/* Save the previous exception list */
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push [fs:KPCR_EXCEPTION_LIST]
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push PCR[KPCR_EXCEPTION_LIST]
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/* Set the exception handler chain terminator */
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mov dword ptr [fs:KPCR_EXCEPTION_LIST], -1
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mov dword ptr PCR[KPCR_EXCEPTION_LIST], -1
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/* Save the old previous mode */
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push [esi+KTHREAD_PREVIOUS_MODE]
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@ -705,7 +705,7 @@ _KiUnexpectedInterrupt&Number:
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mov es, cx
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/* Set the current stack to Kernel Stack */
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mov ecx, [fs:KPCR_TSS]
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mov ecx, PCR[KPCR_TSS]
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mov esp, [ecx+KTSS_ESP0]
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/* Set up a fake INT Stack. */
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@ -728,7 +728,7 @@ _KiUnexpectedInterrupt&Number:
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push KGDT_R3_TEB + RPL_MASK
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/* Save pointer to our PCR */
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mov ebx, [fs:KPCR_SELF]
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mov ebx, PCR[KPCR_SELF]
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/* Get a pointer to the current thread */
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mov esi, [ebx+KPCR_CURRENT_THREAD]
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@ -831,7 +831,7 @@ _KiUnexpectedInterrupt&Number:
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cld
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/* Save the exception list */
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mov eax, [fs:KPCR_EXCEPTION_LIST]
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mov eax, PCR[KPCR_EXCEPTION_LIST]
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mov [esp+KTRAP_FRAME_EXCEPTION_LIST], eax
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/* Check if we need debugging */
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@ -854,7 +854,7 @@ _KiUnexpectedInterrupt&Number:
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/* Get the current thread and make it unalerted */
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ExitBegin:
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mov ebx, [fs:KPCR_CURRENT_THREAD]
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mov ebx, PCR[KPCR_CURRENT_THREAD]
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mov byte ptr [ebx+KTHREAD_ALERTED], 0
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/* Check if it has User-mode APCs pending */
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@ -954,7 +954,7 @@ PendingUserApc:
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jnz 1f
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/* Assert exception list */
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cmp dword ptr fs:[KPCR_EXCEPTION_LIST], 0
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cmp dword ptr PCR[KPCR_EXCEPTION_LIST], 0
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jnz 2f
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1:
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@ -975,7 +975,7 @@ PendingUserApc:
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#endif
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/* Restore it */
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mov [fs:KPCR_EXCEPTION_LIST], edx
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mov PCR[KPCR_EXCEPTION_LIST], edx
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.if \RestorePreviousMode
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/* Get previous mode */
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@ -990,7 +990,7 @@ PendingUserApc:
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#endif
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/* Restore the previous mode */
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mov esi, [fs:KPCR_CURRENT_THREAD]
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mov esi, PCR[KPCR_CURRENT_THREAD]
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mov byte ptr [esi+KTHREAD_PREVIOUS_MODE], cl
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.else
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@ -1211,3 +1211,117 @@ FastExit:
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iret
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.endm
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//
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// @name INT_EPILOG
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//
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// This macro creates an epilogue for leaving any system trap.
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// It is used for exiting system calls, exceptions, interrupts and generic
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// traps.
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//
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// @param Spurious - TRUE if the interrupt was unexpected and spurious.
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//
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// @remark None.
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//
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.macro INT_EPILOG Spurious
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.if \Spurious
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/* Just exit the trap */
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jmp _Kei386EoiHelper@0
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.else
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/* Disable interrupts */
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cli
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/* End the interrupt and do EOI */
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call _HalEndSystemInterrupt@8
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jmp _Kei386EoiHelper@0
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.endif
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.endm
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#ifdef DBG
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.macro VERIFY_INT Label
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/* Get the current time and mask it to 192 ticks */
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mov eax, _KeTickCount
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and eax, 0xC0
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/* Check if we're in the same tick area */
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cmp eax, dword ptr [edi+KINTERRUPT_TICK_COUNT]
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jg VfRst_&Label
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jl VfWrap_&Label
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/* If we got here, then our count is too large */
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dec word ptr [edi+KINTERRUPT_DISPATCH_COUNT]
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jz VfOvr_&Label
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Vf_&Label:
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.endm
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.macro VERIFY_INT_END Label, Info
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VfOvr_&Label:
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/* Decrement the dispatch count and check if we should bug check */
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dec word ptr [edi+KINTERRUPT_DISPATCH_COUNT+2]
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jz 1f
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/* Update the tick count */
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add eax, 0x40
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mov [edi+KINTERRUPT_TICK_COUNT], eax
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jmp VfRstDef_&Label
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.1:
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/* Check if the debugger is enabled */
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cmp byte ptr __KdDebuggerEnabled, 0
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jnz 1f
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/* It isn't, bugcheck */
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push Info
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push edi
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push [edi+KINTERRUPT_SERVICE_CONTEXT]
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push [edi+KINTERRUPT_SERVICE_ROUTINE]
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push HARDWARE_INTERRUPT_STORM
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call _KeBugCheckEx@20
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1:
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/* Debugger enabled, do a debug print + break instead */
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push [edi+KINTERRUPT_SERVICE_ROUTINE]
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push offset _IsrOverflowMsg
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call _DbgPrint
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add esp, 8
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int 3
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/* Breakpoint handled, get the new tick count */
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mov eax, _KeTickCount
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and eax, 0xC0
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VfRst_&Label:
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/* Reset tick count */
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mov dword ptr [edi+KINTERRUPT_TICK_COUNT], eax
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mov word ptr [edi+KINTERRUPT_DISPATCH_COUNT+2], 64
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VfRstDef_&Label:
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/* Put default overflow count and continue */
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mov ax, _KiISROverflow
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mov word ptr [edi+KINTERRUPT_DISPATCH_COUNT], ax
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jmp Vf_&Label
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VfWrap_&Label:
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/* Check if we wrapped */
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add eax, 0x40
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cmp eax, [edi+KINTERRUPT_TICK_COUNT]
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je Vf_&Label
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/* We did, start over */
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mov eax, _KeTickCount
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jmp VfRst_&Label
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.endm
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#else
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/* We don't verify interrupts on retail builds */
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.macro VERIFY_INT Label
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.endm
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.macro VERIFY_INT_END Label, Info
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.endm
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#endif
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@ -9,12 +9,17 @@
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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*/
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/* INCLUDES ****************************************************************/
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/* INCLUDES *****************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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/* GLOBALS *******************************************************************/
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ULONG KiISRTimeout = 55;
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USHORT KiISROverflow = 30000;
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/* PRIVATE FUNCTIONS *********************************************************/
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VOID
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@ -172,6 +177,8 @@ KeInitializeInterrupt(IN PKINTERRUPT Interrupt,
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Interrupt->ShareVector = ShareVector;
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Interrupt->Number = ProcessorNumber;
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Interrupt->FloatingSave = FloatingSave;
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Interrupt->TickCount = (ULONG)-1;
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Interrupt->DispatchCount = (ULONG)-1;
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/* Loop the template in memory */
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for (i = 0; i < KINTERRUPT_DISPATCH_CODES; i++)
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@ -180,6 +187,14 @@ KeInitializeInterrupt(IN PKINTERRUPT Interrupt,
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*DispatchCode++ = KiInterruptTemplate[i];
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}
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/* Sanity check */
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DPRINT1("Template Size: %lx. Code Size: %lx\n",
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(ULONG_PTR)&KiInterruptTemplateDispatch -
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(ULONG_PTR)KiInterruptTemplate,
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KINTERRUPT_DISPATCH_CODES * 4);
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ASSERT((ULONG_PTR)&KiInterruptTemplateDispatch -
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(ULONG_PTR)KiInterruptTemplate <= (KINTERRUPT_DISPATCH_CODES * 4));
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/* Jump to the last 4 bytes */
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Patch = (PULONG)((ULONG_PTR)Patch +
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((ULONG_PTR)&KiInterruptTemplateObject -
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@ -216,7 +231,6 @@ KeConnectInterrupt(IN PKINTERRUPT Interrupt)
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(Interrupt->SynchronizeIrql < Irql) ||
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(Interrupt->FloatingSave))
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{
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DPRINT1("Invalid interrupt object\n");
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return FALSE;
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}
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@ -254,7 +268,7 @@ KeConnectInterrupt(IN PKINTERRUPT Interrupt)
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(Dispatch.Interrupt->Mode == Interrupt->Mode))
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{
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/* The vector is shared and the interrupts are compatible */
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ASSERT(FALSE); // FIXME: NOT YET SUPPORTED/TESTED
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while (TRUE); // FIXME: NOT YET SUPPORTED/TESTED
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Interrupt->Connected = Connected = TRUE;
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ASSERT(Irql <= SYNCH_LEVEL);
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@ -275,6 +289,14 @@ KeConnectInterrupt(IN PKINTERRUPT Interrupt)
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KiReleaseDispatcherLock(OldIrql);
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KeRevertToUserAffinityThread();
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/* Check if we failed while trying to connect */
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if ((Connected) && (Error))
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{
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DPRINT1("HalEnableSystemInterrupt failed\n");
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KeDisconnectInterrupt(Interrupt);
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Connected = FALSE;
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}
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/* Return to caller */
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return Connected;
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}
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@ -93,6 +93,12 @@ _UnexpectedMsg:
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_UnhandledMsg:
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.asciz "\n\x7\x7!!! Unhandled or Unexpected Code at line: %lx!!!\n"
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_IsrTimeoutMsg:
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.asciz "\n*** ISR at %lx took over .5 second\n"
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_IsrOverflowMsg:
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.asciz "\n*** ISR at %lx appears to have an interrupt storm\n"
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_KiTrapPrefixTable:
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.byte 0xF2 /* REP */
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.byte 0xF3 /* REP INS/OUTS */
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@ -174,7 +180,7 @@ SharedCode:
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jnz NotWin32K
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/* Get the TEB */
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mov ecx, [fs:KPCR_TEB]
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mov ecx, PCR[KPCR_TEB]
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/* Check if we should flush the User Batch */
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xor ebx, ebx
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@ -191,7 +197,7 @@ ReadBatch:
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NotWin32K:
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/* Increase total syscall count */
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inc dword ptr fs:[KPCR_SYSTEM_CALLS]
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inc dword ptr PCR[KPCR_SYSTEM_CALLS]
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#ifdef DBG
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/* Increase per-syscall count */
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@ -243,7 +249,7 @@ AfterSysCall:
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mov eax, esi /* Restore it */
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/* Get our temporary current thread pointer for sanity check */
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mov ecx, fs:[KPCR_CURRENT_THREAD]
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mov ecx, PCR[KPCR_CURRENT_THREAD]
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/* Make sure that we are not attached and that APCs are not disabled */
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mov dl, [ecx+KTHREAD_APC_STATE_INDEX]
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@ -262,7 +268,7 @@ SkipCheck:
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KeReturnFromSystemCall:
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/* Get the Current Thread */
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mov ecx, [fs:KPCR_CURRENT_THREAD]
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mov ecx, PCR[KPCR_CURRENT_THREAD]
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/* Restore the old trap frame pointer */
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mov edx, [ebp+KTRAP_FRAME_EDX]
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@ -353,7 +359,7 @@ AccessViolation:
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BadStack:
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/* Restore ESP0 stack */
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mov ecx, [fs:KPCR_TSS]
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mov ecx, PCR[KPCR_TSS]
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mov esp, ss:[ecx+KTSS_ESP0]
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/* Generate V86M Stack for Trap 6 */
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@ -373,10 +379,10 @@ BadStack:
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#ifdef DBG
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InvalidIrql:
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/* Save current IRQL */
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push fs:[KPCR_IRQL]
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push PCR[KPCR_IRQL]
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/* Set us at passive */
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mov dword ptr fs:[KPCR_IRQL], 0
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mov dword ptr PCR[KPCR_IRQL], 0
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cli
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/* Bugcheck */
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@ -485,7 +491,7 @@ _NtRaiseException@12:
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push ebp
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/* Get the current thread and restore its trap frame */
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mov ebx, [fs:KPCR_CURRENT_THREAD]
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mov ebx, PCR[KPCR_CURRENT_THREAD]
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mov edx, [ebp+KTRAP_FRAME_EDX]
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mov [ebx+KTHREAD_TRAP_FRAME], edx
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@ -497,7 +503,7 @@ _NtRaiseException@12:
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/* Get the exception list and restore */
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mov eax, [ebx+KTRAP_FRAME_EXCEPTION_LIST]
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mov [fs:KPCR_EXCEPTION_LIST], eax
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mov PCR[KPCR_EXCEPTION_LIST], eax
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/* Get the parameters */
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mov edx, [ebp+16] /* Search frames */
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@ -532,7 +538,7 @@ _NtContinue@8:
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push ebp
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/* Get the current thread and restore its trap frame */
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mov ebx, [fs:KPCR_CURRENT_THREAD]
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mov ebx, PCR[KPCR_CURRENT_THREAD]
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mov edx, [ebp+KTRAP_FRAME_EDX]
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mov [ebx+KTHREAD_TRAP_FRAME], edx
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@ -696,7 +702,7 @@ SendException:
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VdmCheck:
|
||||
/* Check if this is a VDM process */
|
||||
mov ebx, [fs:KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
|
||||
jz SendException
|
||||
|
|
@ -742,7 +748,7 @@ PrepInt1:
|
|||
|
||||
V86Int1:
|
||||
/* Check if this is a VDM process */
|
||||
mov ebx, [fs:KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
|
||||
jz EnableInterrupts
|
||||
|
|
@ -806,7 +812,7 @@ PrepInt3:
|
|||
|
||||
V86Int3:
|
||||
/* Check if this is a VDM process */
|
||||
mov ebx, [fs:KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
|
||||
jz EnableInterrupts3
|
||||
|
|
@ -847,7 +853,7 @@ SendException4:
|
|||
|
||||
VdmCheck4:
|
||||
/* Check if this is a VDM process */
|
||||
mov ebx, [fs:KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
|
||||
jz SendException4
|
||||
|
|
@ -893,7 +899,7 @@ SendException5:
|
|||
|
||||
VdmCheck5:
|
||||
/* Check if this is a VDM process */
|
||||
mov ebx, [fs:KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
|
||||
jz SendException5
|
||||
|
|
@ -934,7 +940,7 @@ NotV86UD:
|
|||
jz UmodeOpcode
|
||||
|
||||
/* Check if the process is vDM */
|
||||
mov ebx, fs:[KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
|
||||
jnz IsVdmOpcode
|
||||
|
|
@ -950,8 +956,8 @@ UmodeOpcode:
|
|||
/* Setup a SEH frame */
|
||||
push ebp
|
||||
push OpcodeSEH
|
||||
push fs:[KPCR_EXCEPTION_LIST]
|
||||
mov fs:[KPCR_EXCEPTION_LIST], esp
|
||||
push PCR[KPCR_EXCEPTION_LIST]
|
||||
mov PCR[KPCR_EXCEPTION_LIST], esp
|
||||
|
||||
OpcodeLoop:
|
||||
/* Get the instruction and check if it's LOCK */
|
||||
|
|
@ -964,7 +970,7 @@ OpcodeLoop:
|
|||
loop OpcodeLoop
|
||||
|
||||
/* Undo SEH frame */
|
||||
pop fs:[KPCR_EXCEPTION_LIST]
|
||||
pop PCR[KPCR_EXCEPTION_LIST]
|
||||
add esp, 8
|
||||
|
||||
KmodeOpcode:
|
||||
|
|
@ -980,7 +986,7 @@ KmodeOpcode:
|
|||
LockCrash:
|
||||
|
||||
/* Undo SEH Frame */
|
||||
pop fs:[KPCR_EXCEPTION_LIST]
|
||||
pop PCR[KPCR_EXCEPTION_LIST]
|
||||
add esp, 8
|
||||
|
||||
/* Setup invalid lock exception and dispatch it */
|
||||
|
|
@ -1000,7 +1006,7 @@ OpcodeSEH:
|
|||
|
||||
/* Get SEH frame */
|
||||
mov esp, [esp+8]
|
||||
pop fs:[KPCR_EXCEPTION_LIST]
|
||||
pop PCR[KPCR_EXCEPTION_LIST]
|
||||
add esp, 4
|
||||
pop ebp
|
||||
|
||||
|
|
@ -1030,7 +1036,7 @@ _KiTrap7:
|
|||
|
||||
/* Get the current thread and stack */
|
||||
StartTrapHandle:
|
||||
mov eax, [fs:KPCR_CURRENT_THREAD]
|
||||
mov eax, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ecx, [eax+KTHREAD_INITIAL_STACK]
|
||||
sub ecx, NPX_FRAME_LENGTH
|
||||
|
||||
|
|
@ -1049,7 +1055,7 @@ CheckState:
|
|||
mov cr0, ebx
|
||||
|
||||
/* Check the NPX thread */
|
||||
mov edx, [fs:KPCR_NPX_THREAD]
|
||||
mov edx, PCR[KPCR_NPX_THREAD]
|
||||
or edx, edx
|
||||
jz NoNpxThread
|
||||
|
||||
|
|
@ -1083,7 +1089,7 @@ FrRestore:
|
|||
AfterRestore:
|
||||
/* Set state loaded */
|
||||
mov byte ptr [eax+KTHREAD_NPX_STATE], NPX_STATE_LOADED
|
||||
mov [fs:KPCR_NPX_THREAD], eax
|
||||
mov PCR[KPCR_NPX_THREAD], eax
|
||||
|
||||
/* Enable interrupts to happen now */
|
||||
sti
|
||||
|
|
@ -1144,7 +1150,7 @@ HandleNpxFault:
|
|||
|
||||
UserNpx:
|
||||
/* Get the current thread */
|
||||
mov eax, fs:[KPCR_CURRENT_THREAD]
|
||||
mov eax, PCR[KPCR_CURRENT_THREAD]
|
||||
|
||||
/* Check NPX state */
|
||||
cmp byte ptr [eax+KTHREAD_NPX_STATE], NPX_STATE_NOT_LOADED
|
||||
|
|
@ -1180,7 +1186,7 @@ MakeCr0Dirty:
|
|||
|
||||
/* Update NPX state */
|
||||
mov byte ptr [eax+KTHREAD_NPX_STATE], NPX_STATE_NOT_LOADED
|
||||
mov dword ptr fs:[KPCR_NPX_THREAD], 0
|
||||
mov dword ptr PCR[KPCR_NPX_THREAD], 0
|
||||
|
||||
NoSaveRestore:
|
||||
/* Clear the TS bit and re-enable interrupts */
|
||||
|
|
@ -1293,7 +1299,7 @@ UnexpectedNpx:
|
|||
|
||||
V86Npx:
|
||||
/* Check if this is a VDM */
|
||||
mov eax, fs:[KPCR_CURRENT_THREAD]
|
||||
mov eax, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [eax+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
|
||||
jz HandleUserNpx
|
||||
|
|
@ -1414,7 +1420,7 @@ _KiTrapExceptHandler:
|
|||
|
||||
/* Setup SEH handler frame */
|
||||
mov esp, [esp+8]
|
||||
pop fs:[KPCR_EXCEPTION_LIST]
|
||||
pop PCR[KPCR_EXCEPTION_LIST]
|
||||
add esp, 4
|
||||
pop ebp
|
||||
|
||||
|
|
@ -1445,7 +1451,7 @@ _KiTrap13:
|
|||
V86_TRAP_PROLOG kitd
|
||||
|
||||
/* Make sure that this is a V86 process */
|
||||
mov ecx, [fs:KPCR_CURRENT_THREAD]
|
||||
mov ecx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ecx, [ecx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [ecx+EPROCESS_VDM_OBJECTS], 0
|
||||
jnz RaiseIrql
|
||||
|
|
@ -1505,7 +1511,7 @@ NotV86:
|
|||
jnz UserModeGpf
|
||||
|
||||
/* Check if we have a VDM alert */
|
||||
cmp dword ptr fs:[KPCR_VDM_ALERT], 0
|
||||
cmp dword ptr PCR[KPCR_VDM_ALERT], 0
|
||||
jnz VdmAlertGpf
|
||||
|
||||
/* Check for GPF during GPF */
|
||||
|
|
@ -1565,7 +1571,7 @@ KmodeGpf:
|
|||
|
||||
NotBiosGpf:
|
||||
/* Check if the thread was in kernel mode */
|
||||
mov ebx, [fs:KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
test byte ptr [ebx+KTHREAD_PREVIOUS_MODE], 0xFF
|
||||
jz UserModeGpf
|
||||
|
||||
|
|
@ -1656,7 +1662,7 @@ UserModeGpf:
|
|||
jz _KiSystemFatalException
|
||||
|
||||
/* Get the process and check which CS this came from */
|
||||
mov ebx, fs:[KPCR_CURRENT_THREAD]
|
||||
mov ebx, PCR[KPCR_CURRENT_THREAD]
|
||||
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp word ptr [ebp+KTRAP_FRAME_CS], KGDT_R3_CODE + RPL_MASK
|
||||
jz CheckVdmGpf
|
||||
|
|
@ -1719,8 +1725,8 @@ CheckPrivilegedInstruction:
|
|||
/* Setup a SEH handler */
|
||||
push ebp
|
||||
push offset _KiTrapExceptHandler
|
||||
push fs:[KPCR_EXCEPTION_LIST]
|
||||
mov fs:[KPCR_EXCEPTION_LIST], esp
|
||||
push PCR[KPCR_EXCEPTION_LIST]
|
||||
mov PCR[KPCR_EXCEPTION_LIST], esp
|
||||
|
||||
/* Get EIP */
|
||||
mov esi, [ebp+KTRAP_FRAME_EIP]
|
||||
|
|
@ -1790,7 +1796,7 @@ CheckPrivilegedInstruction2:
|
|||
|
||||
IsPrivInstruction:
|
||||
/* Cleanup the SEH frame */
|
||||
pop fs:[KPCR_EXCEPTION_LIST]
|
||||
pop PCR[KPCR_EXCEPTION_LIST]
|
||||
add esp, 8
|
||||
|
||||
/* Setup the exception */
|
||||
|
|
@ -1800,7 +1806,7 @@ IsPrivInstruction:
|
|||
|
||||
NotIoViolation:
|
||||
/* Cleanup the SEH frame */
|
||||
pop fs:[KPCR_EXCEPTION_LIST]
|
||||
pop PCR[KPCR_EXCEPTION_LIST]
|
||||
add esp, 8
|
||||
|
||||
SetException:
|
||||
|
|
@ -1824,11 +1830,11 @@ _KiTrap14:
|
|||
TRAP_PROLOG kit14
|
||||
|
||||
/* Check if we have a VDM alert */
|
||||
cmp dword ptr fs:[KPCR_VDM_ALERT], 0
|
||||
cmp dword ptr PCR[KPCR_VDM_ALERT], 0
|
||||
jnz VdmAlertGpf
|
||||
|
||||
/* Get the current thread */
|
||||
mov edi, fs:[KPCR_CURRENT_THREAD]
|
||||
mov edi, PCR[KPCR_CURRENT_THREAD]
|
||||
|
||||
/* Get the stack address of the frame */
|
||||
lea eax, [esp+KTRAP_FRAME_LENGTH+NPX_FRAME_LENGTH]
|
||||
|
|
@ -1840,7 +1846,7 @@ _KiTrap14:
|
|||
jb NoFixUp
|
||||
|
||||
/* Check if we have a TEB */
|
||||
mov eax, fs:[KPCR_TEB]
|
||||
mov eax, PCR[KPCR_TEB]
|
||||
or eax, eax
|
||||
jle NoFixUp
|
||||
|
||||
|
|
@ -1913,7 +1919,7 @@ CheckVdmPf:
|
|||
jnz VdmPF
|
||||
|
||||
/* Check if the fault occured in a VDM */
|
||||
mov esi, fs:[KPCR_CURRENT_THREAD]
|
||||
mov esi, PCR[KPCR_CURRENT_THREAD]
|
||||
mov esi, [esi+KTHREAD_APCSTATE_PROCESS]
|
||||
cmp dword ptr [esi+EPROCESS_VDM_OBJECTS], 0
|
||||
jz CheckStatus
|
||||
|
|
@ -2006,8 +2012,8 @@ _KiTrap16:
|
|||
TRAP_PROLOG kit16
|
||||
|
||||
/* Check if this is the NPX Thread */
|
||||
mov eax, fs:[KPCR_CURRENT_THREAD]
|
||||
cmp eax, fs:[KPCR_NPX_THREAD]
|
||||
mov eax, PCR[KPCR_CURRENT_THREAD]
|
||||
cmp eax, PCR[KPCR_NPX_THREAD]
|
||||
|
||||
/* Get the initial stack and NPX frame */
|
||||
mov ecx, [eax+KTHREAD_INITIAL_STACK]
|
||||
|
|
@ -2059,7 +2065,7 @@ _KiSystemFatalException:
|
|||
_KiCoprocessorError@0:
|
||||
|
||||
/* Get the NPX Thread's Initial stack */
|
||||
mov eax, [fs:KPCR_NPX_THREAD]
|
||||
mov eax, PCR[KPCR_NPX_THREAD]
|
||||
mov eax, [eax+KTHREAD_INITIAL_STACK]
|
||||
|
||||
/* Make space for the FPU Save area */
|
||||
|
|
@ -2085,7 +2091,7 @@ _Ki16BitStackException:
|
|||
push esp
|
||||
|
||||
/* Go to kernel mode thread stack */
|
||||
mov eax, fs:[KPCR_CURRENT_THREAD]
|
||||
mov eax, PCR[KPCR_CURRENT_THREAD]
|
||||
add esp, [eax+KTHREAD_INITIAL_STACK]
|
||||
|
||||
/* Switch to good stack segment */
|
||||
|
|
@ -2112,7 +2118,7 @@ _KiUnexpectedInterruptTail:
|
|||
INT_PROLOG kui, DoNotPushFakeErrorCode
|
||||
|
||||
/* Increase interrupt count */
|
||||
inc dword ptr [fs:KPCR_PRCB_INTERRUPT_COUNT]
|
||||
inc dword ptr PCR[KPCR_PRCB_INTERRUPT_COUNT]
|
||||
|
||||
/* Put vector in EBX and make space for KIRQL */
|
||||
mov ebx, [esp]
|
||||
|
|
@ -2161,7 +2167,7 @@ _KiUnexpectedInterrupt:
|
|||
_KiDispatchInterrupt@0:
|
||||
|
||||
/* Get the PCR and disable interrupts */
|
||||
mov ebx, [fs:KPCR_SELF]
|
||||
mov ebx, PCR[KPCR_SELF]
|
||||
cli
|
||||
|
||||
/* Check if we have to deliver DPCs, timers, or deferred threads */
|
||||
|
|
@ -2281,7 +2287,7 @@ _KiChainedDispatch2ndLvl@0:
|
|||
_KiChainedDispatch@0:
|
||||
|
||||
/* Increase interrupt count */
|
||||
inc dword ptr [fs:KPCR_PRCB_INTERRUPT_COUNT]
|
||||
inc dword ptr PCR[KPCR_PRCB_INTERRUPT_COUNT]
|
||||
|
||||
/* Save trap frame */
|
||||
mov ebp, esp
|
||||
|
|
@ -2308,17 +2314,14 @@ _KiChainedDispatch@0:
|
|||
call _KiChainedDispatch2ndLvl@0
|
||||
|
||||
/* Exit the interrupt */
|
||||
mov esi, $
|
||||
cli
|
||||
call _HalEndSystemInterrupt@8
|
||||
jmp _Kei386EoiHelper@0
|
||||
INT_EPILOG 0
|
||||
.endfunc
|
||||
|
||||
.func KiInterruptDispatch@0
|
||||
_KiInterruptDispatch@0:
|
||||
|
||||
/* Increase interrupt count */
|
||||
inc dword ptr [fs:KPCR_PRCB_INTERRUPT_COUNT]
|
||||
inc dword ptr PCR[KPCR_PRCB_INTERRUPT_COUNT]
|
||||
|
||||
/* Save trap frame */
|
||||
mov ebp, esp
|
||||
|
|
@ -2346,27 +2349,51 @@ GetIntLock:
|
|||
mov esi, [edi+KINTERRUPT_ACTUAL_LOCK]
|
||||
ACQUIRE_SPINLOCK(esi, IntSpin)
|
||||
|
||||
/* Make sure that this interrupt isn't storming */
|
||||
VERIFY_INT kid
|
||||
|
||||
/* Save the tick count */
|
||||
mov ebx, _KeTickCount
|
||||
|
||||
/* Call the ISR */
|
||||
mov eax, [edi+KINTERRUPT_SERVICE_CONTEXT]
|
||||
push eax
|
||||
push edi
|
||||
call [edi+KINTERRUPT_SERVICE_ROUTINE]
|
||||
|
||||
/* Check if the ISR timed out */
|
||||
add ebx, _KiISRTimeout
|
||||
cmp _KeTickCount, ebx
|
||||
jnc IsrTimeout
|
||||
|
||||
ReleaseLock:
|
||||
/* Release the lock */
|
||||
RELEASE_SPINLOCK(esi)
|
||||
|
||||
/* Exit the interrupt */
|
||||
cli
|
||||
call _HalEndSystemInterrupt@8
|
||||
jmp _Kei386EoiHelper@0
|
||||
INT_EPILOG 0
|
||||
|
||||
SpuriousInt:
|
||||
/* Exit the interrupt */
|
||||
add esp, 8
|
||||
jmp _Kei386EoiHelper@0
|
||||
INT_EPILOG 1
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
IntSpin:
|
||||
SPIN_ON_LOCK esi, GetIntLock
|
||||
#endif
|
||||
|
||||
IsrTimeout:
|
||||
/* Print warning message */
|
||||
push [edi+KINTERRUPT_SERVICE_ROUTINE]
|
||||
push offset _IsrTimeoutMsg
|
||||
call _DbgPrint
|
||||
add esp,8
|
||||
|
||||
/* Break into debugger, then continue */
|
||||
int 3
|
||||
jmp ReleaseLock
|
||||
|
||||
/* Cleanup verification */
|
||||
VERIFY_INT_END kid, 0
|
||||
.endfunc
|
||||
|
|
|
|||
Loading…
Reference in a new issue