> > OK, please include those questions/answers in the git commit and
> > repost.
I seem to be missing the rest of the patches. I see the drivers/xen/events also
has the xen_init_IRQ_arm... is there a git tree with the base patches?
>
> ---
>
> xen/arm: enable evtchn irqs
>
> On ARM Linux irqs are not enabled by default:
>
> - call enable_percpu_irq for IRQ_EVTCHN_CALLBACK (drivers are supposed
> to call enable_irq after request_irq);
>
> - set the IRQF_VALID flag for the other irqs bound to evtchns. It causes
> IRQ_NOAUTOEN to be set and as a consequence irq_unmask is going to be
> called when a xenbus driver calls request_irq.
> This is needed because IRQ_NOAUTOEN is set by set_irq_flags on ARM.
> If IRQ_NOAUTOEN is set __setup_irq doesn't call irq_startup that is
> responsible for calling irq_unmask at startup time.
>
> Signed-off-by: Stefano Stabellini <stefano.stabell...@eu.citrix.com>
>
> diff --git a/drivers/xen/events.c b/drivers/xen/events.c
> index eae0d0b..ca92755 100644
> --- a/drivers/xen/events.c
> +++ b/drivers/xen/events.c
> @@ -53,6 +53,7 @@
> #include <xen/interface/hvm/params.h>
> #include <xen/interface/physdev.h>
> #include <xen/interface/sched.h>
> +#include <asm/hw_irq.h>
>
> /*
> * This lock protects updates to the following mapping and reference-count
> @@ -824,6 +828,7 @@ int bind_evtchn_to_irq(unsigned int evtchn)
>
> xen_irq_info_evtchn_init(irq, evtchn);
> }
> + set_irq_flags(irq, IRQF_VALID);
>
> out:
> mutex_unlock(&irq_mapping_update_lock);
> @@ -1748,6 +1753,7 @@ int __init xen_init_IRQ_arm(void)
> if (rc) {
> printk(KERN_ERR "Error requesting IRQ %d\n",
> IRQ_EVTCHN_CALLBACK);
> }
> + enable_percpu_irq(IRQ_EVTCHN_CALLBACK, 0);
> return rc;
> }
> core_initcall(xen_init_IRQ_arm);
--
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