installing an APIC interrupt handler w/o patching the kernel?

[Brinkley Sprunt]

Hi,

I'm developing tools to support the use of the Pentium 4 performance
counters and event-based sampling.  I currently have the tools working
for event-based sampling via the APIC performance counter interrupt.
To setup the handler for the APIC interrupt, I have patched the kernel
in a fashion similar to the approach Mikael Pettersson uses for his
perfctr driver.  However, I would like to avoid patching the kernel
in order to install the handler for the APIC interrupt.  I've attempted
to use request_irq(), free_irq(), prove_irq_on(), and probe_irq_off(),
but these just do not appear to be the appropriate interface for
installing APIC interrupt handlers (is this correct?).

Is there a recommended way to install an APIC interrupt handler without
patching the kernel?

Thanks,

Brink

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Brinkley Sprunt
Electrical Engineering Department
Bucknell University
Moore Avenue
Lewisburg, PA 17837
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http://www.eg.bucknell.edu/~bsprunt
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