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

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Mon, 14 Apr 2025, Julien Grall wrote:
> 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.

Hi Mykyta, just checking explicitly with you whether this series
requires vgic-v3-its.c for DomUs?

If yes, how far are you from sending the relevant patches to xen-devel?
How many are they?