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xen: add irq_from_evtchn

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Given an evtchn, return the corresponding irq.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Ian Campbell
2009-02-06 19:20:31 -08:00
committed by Jeremy Fitzhardinge
parent 6d02c42698
commit d4c045364d
2 changed files with 9 additions and 0 deletions
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include/xen/events.h
+3
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@@ -53,4 +53,7 @@ bool xen_test_irq_pending(int irq);
irq will be disabled so it won't deliver an interrupt. */
void xen_poll_irq(int irq);
/* Determine the IRQ which is bound to an event channel */
unsigned irq_from_evtchn(unsigned int evtchn);
#endif /* _XEN_EVENTS_H */