Re: [Xen-devel] [PATCH v5 03/10] xen/arm: set GICH_HCR_UIE if all the LRs are in use

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2014-03-24 at 18:49 +0000, Stefano Stabellini wrote:
> On return to guest, if there are no free LRs and we still have more
> interrupt to inject, set GICH_HCR_UIE so that we are going to receive a
> maintenance interrupt when no pending interrupts are present in the LR
> registers.
> The maintenance interrupt handler won't do anything anymore, but
> receiving the interrupt is going to cause gic_inject to be called on
> return to guest that is going to clear the old LRs and inject new
> interrupts.
>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
> Acked-by: Julien Grall <julien.grall@xxxxxxxxxx>
> 
> ---
> 
> Changes in v5:
> - introduce lr_all_full() helper.

I see you've also added the comment to the interrupt handler which was
requested last time but in the next patch where it also logically
belongs. Make sense.

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>



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