VOID
FASTCALL
KiUnexpectedInterruptTailHandler(IN PKTRAP_FRAME TrapFrame)
{
KIRQL OldIrql;
/* Enter trap */
KiEnterInterruptTrap(TrapFrame);
/* Increase interrupt count */
KeGetCurrentPrcb()->InterruptCount++;
/* Start the interrupt */
if (HalBeginSystemInterrupt(HIGH_LEVEL, TrapFrame->ErrCode, &OldIrql))
{
/* Warn user */
DPRINT1("\n\x7\x7!!! Unexpected Interrupt 0x%02lx !!!\n", TrapFrame->ErrCode);
/* Now call the epilogue code */
KiExitInterrupt(TrapFrame, OldIrql, FALSE);
}
else
{
/* Now call the epilogue code */
KiExitInterrupt(TrapFrame, OldIrql, TRUE);
}
}
VOID
FASTCALL
KiInterruptTemplateHandler(IN PKTRAP_FRAME TrapFrame,
IN PKINTERRUPT Interrupt)
{
/* Enter interrupt frame */
KiEnterInterruptTrap(TrapFrame);
/* Call the correct dispatcher */
((PKI_INTERRUPT_DISPATCH)Interrupt->DispatchAddress)(TrapFrame, Interrupt);
}
VOID
DECLSPEC_NORETURN
FASTCALL
HalpApcInterruptHandler(IN PKTRAP_FRAME TrapFrame)
{
KPROCESSOR_MODE ProcessorMode;
KIRQL OldIrql;
ASSERT(ApicGetProcessorIrql() == APC_LEVEL);
/* Enter trap */
KiEnterInterruptTrap(TrapFrame);
#ifdef APIC_LAZY_IRQL
if (!HalBeginSystemInterrupt(APC_LEVEL, APC_VECTOR, &OldIrql))
{
/* "Spurious" interrupt, exit the interrupt */
KiEoiHelper(TrapFrame);
}
#else
/* Save the old IRQL */
OldIrql = ApicGetCurrentIrql();
ASSERT(OldIrql < APC_LEVEL);
#endif
/* Raise to APC_LEVEL */
ApicRaiseIrql(APC_LEVEL);
/* End the interrupt */
ApicSendEOI();
/* Kernel or user APC? */
if (KiUserTrap(TrapFrame)) ProcessorMode = UserMode;
else if (TrapFrame->EFlags & EFLAGS_V86_MASK) ProcessorMode = UserMode;
else ProcessorMode = KernelMode;
/* Enable interrupts and call the kernel's APC interrupt handler */
_enable();
KiDeliverApc(ProcessorMode, NULL, TrapFrame);
/* Disable interrupts */
_disable();
/* Restore the old IRQL */
ApicLowerIrql(OldIrql);
/* Exit the interrupt */
KiEoiHelper(TrapFrame);
}
VOID
DECLSPEC_NORETURN
FASTCALL
HalpDispatchInterruptHandler(IN PKTRAP_FRAME TrapFrame)
{
KIRQL OldIrql;
ASSERT(ApicGetProcessorIrql() == DISPATCH_LEVEL);
/* Enter trap */
KiEnterInterruptTrap(TrapFrame);
#ifdef APIC_LAZY_IRQL
if (!HalBeginSystemInterrupt(DISPATCH_LEVEL, DISPATCH_VECTOR, &OldIrql))
{
/* "Spurious" interrupt, exit the interrupt */
KiEoiHelper(TrapFrame);
}
#else
/* Get the current IRQL */
OldIrql = ApicGetCurrentIrql();
ASSERT(OldIrql < DISPATCH_LEVEL);
#endif
/* Raise to DISPATCH_LEVEL */
ApicRaiseIrql(DISPATCH_LEVEL);
/* End the interrupt */
ApicSendEOI();
/* Enable interrupts and call the kernel's DPC interrupt handler */
_enable();
KiDispatchInterrupt();
_disable();
/* Restore the old IRQL */
ApicLowerIrql(OldIrql);
/* Exit the interrupt */
KiEoiHelper(TrapFrame);
}
