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

[Julien Grall <julien.grall@xxxxxxxxxx>]

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

> 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:

https://patches.linaro.org/34666/

> 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.

Regards,

--
Julien Grall

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