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Log error code of EVTCHNOP_bind_pirq failure

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Ease debugging of PCI passthrough problems.
This commit is contained in:
Marek Marczykowski-Górecki 2016-01-30 01:53:26 +01:00
parent 7c016c3b86
commit c9318689a6
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GPG Key ID: 063938BA42CFA724
2 changed files with 14 additions and 0 deletions
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13
patches.xen/irq-bind-debug-log.patch Normal file
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@ -0,0 +1,13 @@
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 524c221..acb29f4 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -519,7 +519,7 @@ 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;

1
series.conf
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@ -4,6 +4,7 @@ patches.xen/0001-Revert-xen-xenbus-Avoid-synchronous-wait-on-XenBus-s.patch
patches.xen/0001-xen-fix-deadlock-on-proc-xen-xenbus-access.patch
patches.xen/xen-netfront-detach-crash.patch
patches.xen/0001-mce-hide-EBUSY-initialization-error-on-Xen.patch
patches.xen/irq-bind-debug-log.patch
# Additional features
#patches.xen/pvops-0100-usb-xen-pvusb-driver.patch