Re: [Xen-devel] [PATCH v3 46/47] xen/sched: disable scheduling when entering ACPI deep sleep states

[Dario Faggioli <dfaggioli@xxxxxxxx>]

On Sat, 2019-09-14 at 10:52 +0200, Juergen Gross wrote:
> When entering deep sleep states all domains are paused resulting in
> all cpus only running idle vcpus. This enables us to stop scheduling
> completely in order to avoid synchronization problems with core
> scheduling when individual cpus are offlined.
> 
> Disabling the scheduler is done by replacing the softirq handler
> with a dummy scheduling routine only enabling tasklets to run.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
>
Reviewed-by: Dario Faggioli <dfaggioli@xxxxxxxx>

Regards
-- 
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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