Re: Xen 4.21 Development Update [May]

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

Hello Mykola,

On 6/11/25 9:03 AM, Mykola Kvach wrote:

> > === ARM ===
> >
> > * SMMU handling for PCIe Passthrough on ARM (v11)
> >    - Mykyta Poturai
> >    -
> > https://lore.kernel.org/xen-devel/cover.1741958647.git.mykyta_poturai@xxxxxxxx/
> >    -
> > https://patchew.org/Xen/cover.1748422217.git.mykyta._5Fpoturai@xxxxxxxx/
> >
> > * xen/arm: scmi: introduce SCI SCMI SMC multi-agent support
> >    - Grygorii Strashko
> >    -
> > https://lore.kernel.org/xen-devel/20250311111618.1850927-1-grygorii_strashko@xxxxxxxx/
> >
> > * Add initial Xen Suspend-to-RAM support on ARM64 (v4)
> >    - Mykola Kvach
> >    -
> > https://lore.kernel.org/xen-devel/cover.1741164138.git.xakep.amatop@xxxxxxxxx/
> >    - https://patchew.org/Xen/cover.1748848482.git.mykola._5Fkvach@xxxxxxxx/
> >       
> I'd like to propose including initial support for Suspend-to-RAM in Xen 4.21.
>
> This feature enables Xen and its guests to enter suspend state via
> PSCI SYSTEM_SUSPEND. Xen suspend is triggered from the hardware domain.
>
> Support is currently Experimental.
>     
Thanks for your feedback!

I saw that there are two patch series connected to Suspend-to-RAM topic:
- https://lore.kernel.org/xen-devel/cover.1748337249.git.mykola_kvach@xxxxxxxx/
- https://lore.kernel.org/xen-devel/cover.1748848482.git.mykola_kvach@xxxxxxxx/

So it seems like we should follow a progress for these two patch series in parallel.
Or the difference is that one of patch series is for connect to guest and another
to hardware domains.

Am I missing something?

~ Oleksii