Re: [PATCH] x86: fix probe_nr_irqs for xen

[Jeremy Fitzhardinge]

Yinghai Lu wrote:
> like system vectors with smp-ipi etc?
>   

More or less.  Xen currently uses 6 per-cpu event channels, and it maps
each to its own irq.  My plan is to allocate just 6 irqs, map 6 vectors
to them, and bind each event channel to a vector/cpu pair.  If nothing
else, it will make /proc/interrupts somewhat sane again.


>> Also, implementing probe_nr_irqs() in a more generic (rather than
>> io_apic-specific) way.  Using some interface that queries each irq chip
>> for how many irqs it supports, or something.
>>     
>
> hope we can kill nr_irqs/NR_IRQS
>   

When irqs are truely dynamically allocated?

    J
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/