Re: [Xen-devel] [PATCH v2 08/21] xen/arm: Initialize the virtual GIC later

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 29/08/14 09:09, Andrii Tseglytskyi wrote:
> Hi Julien,
Hi Andrii,

> Here I got 32 lines for 3 SPIs
>
> And this will break checking for IRQ validity in
> xen/arch/arm/irq.c:route_irq_to_guest() call. I will not be able to
> use IRQ with number greater than 63.
>
> Can this be handled somehow? Or maybe it is already handled and I
> missed something ?
You will have to modify the function for your purpose. If you plan to 
PIRQ == VIRQ every time, you could do smth like:
d->arch.vgic.nr_spis = gic_number_lines() - 32;

I assume, you already modified vgic_allocate_irq to return directly the 
pirq, and do nothing in vgic_free_irq.
Regards,

--
Julien Grall

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