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xen: Fix bug `do_IRQ: cannot handle IRQ -1 vector 0x6 cpu 1'

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Following commit 9c3f2468d8339866d9ef6a25aae31a8909c6be0d, do_IRQ()
looks up the IRQ number in the per-cpu variable vector_irq.

This commit makes Xen initialise an identity vector_irq map for both X86_32 and X86_64.

Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Alex Nixon 2008-08-18 22:17:08 -07:00 committed by Ingo Molnar
parent e7f5ed8d6e
commit bf9d3cf73e
1 changed files with 0 additions and 2 deletions
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arch/x86/xen/irq.c
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@ -21,7 +21,6 @@ void xen_force_evtchn_callback(void)
static void __init __xen_init_IRQ(void)
{
#ifdef CONFIG_X86_64
int i;
/* Create identity vector->irq map */
@ -31,7 +30,6 @@ static void __init __xen_init_IRQ(void)
for_each_possible_cpu(cpu)
per_cpu(vector_irq, cpu)[i] = i;
}
#endif /* CONFIG_X86_64 */
xen_init_IRQ();
}