/**
 * We currently only handle the page fault exception.
 * All other exceptions should be routed to the default exception handler.
 */
void exception_handler(tf_t *tf)
{
	unsigned int cur_pid;
	unsigned int trapno;

	cur_pid = get_curid();
	trapno = tf -> trapno;

	if (trapno == T_PGFLT)
		pgflt_handler(tf);
	else
		default_exception_handler(tf);
}
Exemple #2
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void isr_common_handler(struct thread_regs *ctx)
{
	const int intno = ctx->intno;

	if (intno < IDT_EXCEPTIONS) {
		default_exception_handler(ctx);
		return;
	}

	const int irqno = intno - IDT_EXCEPTIONS;
	const irq_t irq = handler[irqno];

	mask_irq(irqno);
	ack_irq(irqno);
	if (irq)
		irq(irqno);
	unmask_irq(irqno);
}