From d4a2de0378cb95512e61a6f6af542b92ec4fda76 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?= Date: Sat, 30 Jan 2016 01:53:26 +0100 Subject: [PATCH] Log error code of EVTCHNOP_bind_pirq failure Ease debugging of PCI passthrough problems. --- drivers/xen/events/events_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 117e76b2f939..34f380be2b34 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -521,7 +521,7 @@ static unsigned int __startup_pirq(unsigned int irq) BIND_PIRQ__WILL_SHARE : 0; rc = HYPERVISOR_event_channel_op(EVTCHNOP_bind_pirq, &bind_pirq); if (rc != 0) { - pr_warn("Failed to obtain physical IRQ %d\n", irq); + pr_warn("Failed to obtain physical IRQ %d (error %d)\n", irq, rc); return 0; } evtchn = bind_pirq.port; -- 2.20.1