Re: [patch] x86, tsc: skip TSC synchronization checks fortsc=reliable

From: john stultz
Date: Mon Nov 07 2011 - 13:07:52 EST


On Fri, 2011-11-04 at 15:42 -0700, Suresh Siddha wrote:
> tsc=reliable boot parameter is supposed to skip all the TSC stablility
> checks during boot time.
>
> On a 8-socket system where we want to run an experiment with the
> "tsc=reliable" boot option, TSC synchronization checks are not
> getting skipped and marking the TSC as not stable.
>
> Check for tsc_clocksource_reliable (which is set via tsc=reliable or
> for platforms supporting synthetic TSC_RELIABLE feature bit etc)
> and when set, skip the TSC synchronization tests during boot.
>
> Signed-off-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>

Looks like a nice cleanup of the tsc=reliable semantics.

Acked-by: John Stultz <johnstul@xxxxxxxxxx>

thanks
-john


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