Re: [PATCH v2 0/2] Add support for MSI injection on Arm

[Julien Grall <julien@xxxxxxx>]

Hi Mykyta,

On 14/04/2025 18:51, Mykyta Poturai wrote:
> This series adds the base support for MSI injection on Arm. This is
> needed to streamline virtio-pci interrupt triggering.
>
> With this patches, MSIs can be triggered in guests by issuing the new
> DM op, inject_msi2. This op is similar to inject_msi, but it allows
> to specify the source id of the MSI.
>
> We chose the approach of adding a new DM op instead of using the pad
> field of inject_msi because we have no clear way of distinguishing
> between set and unset pad fields. New implementations also adds flags
> field to clearly specify if the SBDF is set.
>
> Patches were tested on QEMU with
[...]

> patches for ITS support for DomUs applied.
This means this series is unusable without external patches. Given this 
is adding a new DM operations, I think it would be more sensible to have 
the vITS support merged first. Then we can look at merging this series.
Cheers,

--
Julien Grall