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[NTOSKRNL]

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Implement KeRegisterInterruptHandler and KeQueryInterruptHandler for amd64

svn path=/trunk/; revision=47564
This commit is contained in:
Timo Kreuzer 2010-06-04 10:51:44 +00:00
parent 32f5fc6eab
commit a95f10c476
1 changed files with 46 additions and 0 deletions
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46
reactos/ntoskrnl/include/internal/amd64/ke.h
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@ -157,6 +157,52 @@ KiRundownThread(IN PKTHREAD Thread)
#endif
}
/* Registers an interrupt handler with an IDT vector */
FORCEINLINE
VOID
KeRegisterInterruptHandler(IN ULONG Vector,
IN PVOID Handler)
{
UCHAR Entry;
PKIDTENTRY64 Idt;
/* Get the entry from the HAL */
Entry = HalVectorToIDTEntry(Vector);
/* Now set the data */
Idt = &KeGetPcr()->IdtBase[Entry];
Idt->OffsetLow = (ULONG_PTR)Handler & 0xffff;
Idt->OffsetMiddle = ((ULONG_PTR)Handler >> 16) & 0xffff;
Idt->OffsetHigh = (ULONG_PTR)Handler >> 32;
Idt->Selector = KGDT64_R0_CODE;
Idt->IstIndex = 0;
Idt->Type = 0x0e;
Idt->Dpl = 0;
Idt->Present = 1;
Idt->Reserved0 = 0;
Idt->Reserved1 = 0;
}
/* Returns the registered interrupt handler for a given IDT vector */
FORCEINLINE
PVOID
KeQueryInterruptHandler(IN ULONG Vector)
{
UCHAR Entry;
PKIDTENTRY64 Idt;
/* Get the entry from the HAL */
Entry = HalVectorToIDTEntry(Vector);
/* Get the IDT entry */
Idt = &KeGetPcr()->IdtBase[Entry];
/* Return the address */
return (PVOID)((ULONG64)Idt->OffsetHigh << 32 |
(ULONG64)Idt->OffsetMiddle << 16 |
(ULONG64)Idt->OffsetLow);
}
VOID
FORCEINLINE
KiEndInterrupt(IN KIRQL Irql,