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Re: [Xen-devel] [PATCH v2 1/2] x86/shim: suspend and resume platform time correctly

On Tue, Feb 04, 2020 at 09:49:36PM +0000, Igor Druzhinin wrote:
> Similarly to S3, platform time needs to be saved on guest suspend
> and restored on resume respectively. This should account for expected
> jumps in PV clock counter value after resume. time_suspend/resume()
> are safe to use in PVH setting as is since any existing operations
> with PIT/HPET that they do would simply be ignored if PIT/HPET is
> not present.
> Additionally, add resume callback for Xen PV clocksource to avoid
> its breakage on migration.
> Signed-off-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx>

Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>


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