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Re: [Xen-devel] A suggestion about processing irq

On 19 August 2013 15:53, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> On Mon, 2013-08-19 at 02:29 +0000, êìë wrote:
>> Hello,
>> While I was reading gic handling part of xen arm, I noticed that, in 
>> gic_set_guest_irq function,
>> if lr_pending is not empty, the arrival irq is also stored into pending list.
>> I think although lr_pending is not empty, there maybe empty slots in lr, and 
>> if so, we can insert
>> IRQ immediately. Since I'd like to keep the IRQ in priority order, how about 
>> checking the
>> highest priority in lr_pending list rather than emptiness?
>> Here goes the simple patch:

> Julien & Stefano know about this stuff -- guys?
> Julien was planning to rework a bunch of the interrupt handling stuff, I
> don't know if that was orthogonal to this or not.

Not yet.. I though there is no Operating System with IRQ priority support.
I will add to my TODO list for interrupt.

Julien Grall

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