28 lines
967 B
Diff
28 lines
967 B
Diff
From 6cc28f4d36c81f198dc8cdade583039642942dab Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
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<marmarek@invisiblethingslab.com>
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Date: Sat, 30 Jan 2016 01:53:26 +0100
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Subject: [PATCH] Log error code of EVTCHNOP_bind_pirq failure
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Ease debugging of PCI passthrough problems.
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---
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drivers/xen/events/events_base.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
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index 117e76b2f939..34f380be2b34 100644
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--- a/drivers/xen/events/events_base.c
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+++ b/drivers/xen/events/events_base.c
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@@ -521,7 +521,7 @@ static unsigned int __startup_pirq(unsigned int irq)
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BIND_PIRQ__WILL_SHARE : 0;
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rc = HYPERVISOR_event_channel_op(EVTCHNOP_bind_pirq, &bind_pirq);
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if (rc != 0) {
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- pr_warn("Failed to obtain physical IRQ %d\n", irq);
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+ pr_warn("Failed to obtain physical IRQ %d (error %d)\n", irq, rc);
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return 0;
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}
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evtchn = bind_pirq.port;
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--
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2.20.1
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