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Re: [PATCH v3 1/2] xen: Introduce system suspend config option
- To: Mykola Kvach <xakep.amatop@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 10 Jun 2025 17:30:49 +0200
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- Cc: Mykyta Poturai <mykyta_poturai@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Mykola Kvach <mykola_kvach@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Tue, 10 Jun 2025 15:31:03 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 06.06.2025 12:11, Mykola Kvach wrote:
> From: Mykyta Poturai <mykyta_poturai@xxxxxxxx>
>
> This option enables the system suspend support. This is the mechanism that
> allows the system to be suspended to RAM and later resumed.
>
> The patch introduces three options:
> - HAS_SYSTEM_SUSPEND: indicates suspend support is available on the platform.
> - SYSTEM_SUSPEND_ALWAYS_ON: used for architectures where suspend must always
> be enabled.
> - SYSTEM_SUSPEND: user-facing option to enable/disable suspend if supported.
> Defaults to enabled if SYSTEM_SUSPEND_ALWAYS_ON is set and depends on
> HAS_SYSTEM_SUSPEND.
>
> On x86, both HAS_SYSTEM_SUSPEND and SYSTEM_SUSPEND_ALWAYS_ON are selected by
> default, making suspend support always enabled. The options are designed to
> be easily extensible to other architectures (e.g., PPC, RISC-V) as future
> support is added.
>
> Signed-off-by: Mykyta Poturai <mykyta_poturai@xxxxxxxx>
> Signed-off-by: Mykola Kvach <mykola_kvach@xxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
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