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lguest: fix irq vectors.
do_IRQ: cannot handle IRQ -1 vector 0x20 cpu 0 ------------[ cut here ]------------ kernel BUG at arch/x86/kernel/irq_32.c:219! We're not ISA: we have a 1:1 mapping from vectors to irqs. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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@ -586,6 +586,9 @@ static void __init lguest_init_IRQ(void)
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for (i = 0; i < LGUEST_IRQS; i++) {
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int vector = FIRST_EXTERNAL_VECTOR + i;
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/* Some systems map "vectors" to interrupts weirdly. Lguest has
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* a straightforward 1 to 1 mapping, so force that here. */
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__get_cpu_var(vector_irq)[vector] = i;
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if (vector != SYSCALL_VECTOR) {
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set_intr_gate(vector, interrupt[vector]);
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set_irq_chip_and_handler_name(i, &lguest_irq_controller,
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