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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2010-11-08 14:26:36 -0500
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-04-14 11:17:54 -0400
commitc7c2c3a28657cfdcef50c02b18ccca3761209e17 (patch)
treefc2a2c0652a61d9b0f582c33cfa4c75b3bd8a654 /include/xen
parentbeafbdc1df02877612dc9039c1de0639921fddec (diff)
downloadop-kernel-dev-c7c2c3a28657cfdcef50c02b18ccca3761209e17.zip
op-kernel-dev-c7c2c3a28657cfdcef50c02b18ccca3761209e17.tar.gz
xen/irq: Add support to check if IRQ line is shared with other domains.
We do this via the PHYSDEVOP_irq_status_query support hypervisor call. We will get a positive value if another domain has binded its PIRQ to the specified GSI (IRQ line). [v2: Deal with v2.6.37-rc1 rebase fallout] [v3: Deal with stable/irq.cleanup fallout] [v4: xen_ignore_irq->xen_test_irq_shared] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/xen')
-rw-r--r--include/xen/events.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/xen/events.h b/include/xen/events.h
index 9aecc0b..932e540 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -95,4 +95,7 @@ int xen_destroy_irq(int irq);
/* Return irq from pirq */
int xen_irq_from_pirq(unsigned pirq);
+/* Determine whether to ignore this IRQ if it is passed to a guest. */
+int xen_test_irq_shared(int irq);
+
#endif /* _XEN_EVENTS_H */
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