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

Hello Andrii,

On 19/08/14 04:11, Andrii Tseglytskyi wrote:
OOI, why do you need Virtual IRQ == Physical IRQ?

Because I have few devices in DomU, which use hardcoded IRQ numbers.

BTW - which code allocates IRQ number dynamically? My code is almost
the same and I have 1 to 1 in domU ?

With this series, the toolstack is deciding the number of SPIs (see xen_domctl_configure_domain domctl).

Then when map_pirq is called, the function vgic_allocate_irq allocates the SPIs number.


Julien Grall

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