10.12.4 base_irq_inittab: initialization table for default interrupt entrypoints

   

SYNOPSIS

#include <oskit/x86/pc/base_irq.h>

extern struct gate_init_entry base_irq_inittab [];

DESCRIPTION

This gate initialization table (10.3.9) encapsulates the base environment's default interrupt entrypoint code. This module provides IDT entrypoints for all the standard PC hardware interrupt vectors; each entrypoint pushes a standard state frame on the stack (10.8.1), disables and acknowledges the hardware interrupt, and then calls the C handler function pointed to by the appropriate entry of the base_irq_handlers array (10.12.2). Upon return from the handler, the interrupt code checks for a pending software interrupt and dispatches to base_irq_softint_handler.

DEPENDENCIES

base_irq_handlers

10.12.2

base_irq_nest

10.12.6

base_irq_softint_handler

10.12.8