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Re: [Xen-devel] [RFC 06/19] xen/arm: Implement hypercall PHYSDEVOP_map_pirq

On 18/08/14 14:20, Andrii Tseglytskyi wrote:
Hi All,


Could someone answer - what is the future of this patch series? Are
you going to post patches as non RFC ?

I've sent a v2 a couple of weeks ago:


> Will it be merged to Xen 4.5 ?

I hope so. If I can't get the whole series in Xen 4.5, I will at least try to get the interrupt assignment in it.

I'm asking because it is *very useful* for development we have in
GlobalLogic. In our current state we need to route some HW irqs to
domainU (Android) and we need them 1 to 1.

The new approach allocate dynamically the virtual IRQ number. I chose this solution because otherwise Xen is allocating memory which is never used.

You could hack this patch to support 1:1 (see vgic_allocate_virq and vgic_free_virq).

OOI, why do you need Virtual IRQ == Physical IRQ?

For now we use similar patch series -
http://lists.xen.org/archives/html/xen-devel/2013-07/msg01146.html but
looks like it will not be merged

IIRC, there was few comments in the v2 and no v3 has been sent after.


Julien Grall

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