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- Add the code necessary in the C version of KeLowerIRql to properly mask the PIC, and enable #ifed code in ASM KeRaiseIrql to mask the PIC, since it now works.
svn path=/trunk/; revision=23654
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@ -464,14 +464,12 @@ _@KfRaiseIrql@4:
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/* Set the new IRQL */
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mov [fs:KPCR_IRQL], cl
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#if 0
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/* Mask the interrupts in the PIC */
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mov eax, _KiI8259MaskTable[ecx*4]
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or eax, [fs:KPCR_IDR]
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out 0x21, al
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shr eax, 8
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out 0xA1, al
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#endif
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/* Restore interrupts and return old IRQL */
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popf
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@ -51,6 +51,15 @@ VOID HalpEndSystemInterrupt(KIRQL Irql)
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VOID STATIC
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HalpLowerIrql(KIRQL NewIrql)
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{
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ULONG Mask;
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if (KeGetPcr()->Irql > DISPATCH_LEVEL)
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{
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Mask = KeGetPcr()->IDR | KiI8259MaskTable[NewIrql];
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WRITE_PORT_UCHAR((PUCHAR)0x21, (UCHAR)Mask);
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Mask >>= 8;
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WRITE_PORT_UCHAR((PUCHAR)0xa1, (UCHAR)Mask);
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}
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if (NewIrql >= PROFILE_LEVEL)
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{
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KeGetPcr()->Irql = NewIrql;
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@ -112,6 +121,7 @@ KfLowerIrql (KIRQL NewIrql)
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HalpLowerIrql(NewIrql);
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}
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VOID STDCALL HalEndSystemInterrupt (KIRQL Irql, ULONG Unknown2)
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/*
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* FUNCTION: Finish a system interrupt and restore the specified irq level.
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