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xen: support pirq != irq

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PHYSDEVOP_map_pirq might return a pirq different from what we asked if
we are running as an HVM guest, so we need to be able to support pirqs
that are different from linux irqs.

Signed-off-by: Stefano Stabellini <[email protected]>
Reviewed-by: Konrad Rzeszutek Wilk <[email protected]>
This commit is contained in:
Stefano Stabellini 2010-07-01 17:08:14 +01:00
commit 7a043f119c
2 changed files with 49 additions and 16 deletions
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1
include/xen/events.h
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@ -71,6 +71,7 @@ void xen_hvm_evtchn_do_upcall(void);
* GSIs are identity mapped; others are dynamically allocated as
* usual. */
int xen_allocate_pirq(unsigned gsi, int shareable, char *name);
int xen_map_pirq_gsi(unsigned pirq, unsigned gsi, int shareable, char *name);
/* De-allocates the above mentioned physical interrupt. */
int xen_destroy_irq(int irq);