Re: [Xen-devel] [PATCH v2 16/45] ARM: new VGIC: Implement virtual IRQ injection

[Julien Grall <julien.grall@xxxxxxx>]

Hi,

On 03/15/2018 08:30 PM, Andre Przywara wrote:
> Provide a vgic_queue_irq_unlock() function which decides whether a
> given IRQ needs to be queued to a VCPU's ap_list.
> This should be called whenever an IRQ becomes pending or enabled,
> either as a result of a hardware IRQ injection, from devices emulated by
> Xen (like the architected timer) or from MMIO accesses to the distributor
> emulation.
> Also provides the necessary functions to allow to inject an IRQ to a guest.
> Since this is the first code that starts using our locking mechanism,
> we add some (hopefully) clear documentation of our locking strategy and
> requirements along with this patch.
>
> This is based on Linux commit 81eeb95ddbab, written by Christoffer Dall.
>
> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxxxxx>
Reviewed-by: Julien Grall <julien.grall@xxxxxxx>

Cheers,

--
Julien Grall

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