Hi all,
I have a doubt with w.r.t interrupts and the IDT (Interrupt
Descriptor Table) on an i386. Volume 3 of Intel's IA-32 Intel(r)
Architecture Software Developer's Manual (System Programming Guide)
says that - Interrupt Vector Numbers 0-31 are Intel reserved, so do
not use.
However, on my linux machine, when I did an "cat
/proc/interrupts", the Interrupt field has values like - 0 for Timer,
7 for parport0, 8 for RTC etc. How can this be possible? Does the
IDT's number vector points to the Exception handler (as per intel's
doc) or to the Hardware's Interrupt handler?
Am I missing something here?
Regards,
Bhanu.
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