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Re: [PATCH v9 11/13] xen/arm: Implement PSCI SYSTEM_SUSPEND call (host interface)
- To: Mykola Kvach <xakep.amatop@xxxxxxxxx>
- From: Luca Fancellu <Luca.Fancellu@xxxxxxx>
- Date: Fri, 15 May 2026 07:04:23 +0000
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Mykola Kvach <mykola_kvach@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Fri, 15 May 2026 07:05:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-topic: [PATCH v9 11/13] xen/arm: Implement PSCI SYSTEM_SUSPEND call (host interface)
Hi Mykola,
> On 12 May 2026, at 18:07, Mykola Kvach <xakep.amatop@xxxxxxxxx> wrote:
>
> From: Mirela Simonovic <mirela.simonovic@xxxxxxxxxx>
>
> Invoke PSCI SYSTEM_SUSPEND to finalize Xen's suspend sequence on ARM64
> platforms. Pass the Xen resume entry point (hyp_resume) to EL3 together
> with a zero context ID, matching Linux.
>
> This patch wires up only the host-side PSCI SYSTEM_SUSPEND invocation.
> The resume trampoline and context restore are provided by earlier patches
> in the series.
>
> Only enable this path when CONFIG_SYSTEM_SUSPEND is set and PSCI
> advertises SYSTEM_SUSPEND via PSCI_FEATURES.
>
> Signed-off-by: Mirela Simonovic <mirela.simonovic@xxxxxxxxxx>
> Signed-off-by: Saeed Nowshadi <saeed.nowshadi@xxxxxxxxxx>
> Signed-off-by: Mykyta Poturai <mykyta_poturai@xxxxxxxx>
> Signed-off-by: Mykola Kvach <mykola_kvach@xxxxxxxx>
> ---
Reviewed-by: Luca Fancellu <luca.fancellu@xxxxxxx>
Cheers,
Luca
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