nonboot cpu on SMP suspend

[Li Yang]

Hi all,

I'm curious why we need to un-plug all the nonboot cpus before suspend
and start them all over again after the suspend(ACPI sleep)? I mean
if we can bring the booting cpu back to the exact state as before
suspend, why can't we just do the same for non-booting cpus? And that
will be much faster.  Any thought? Thanks.

- Leo
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