Re: [PATCH] lguest-fix-divide-error-implement-sched_clock

[H. Peter Anvin]

Andi Kleen wrote:
> 
> I don't think it's a good idea for the TSC. There are various
> setups where it is unreliable and also often simulators don't 
> implement it correctly. And it's always a valuable workaround
> to be able to turn it off.
> 

For all I can tell, if this is the case, then CONFIG_X86_TSC should be
removed completely.  We still support the TSC when CONFIG_X86_TSC is not
compiled in; that attribute controls if it is unconditionally required.

(We seem to still not always use it, which may be a good indication that
CONFIG_X86_TSC has outlived its usefulness.  Should it be removed?)

	-hpa
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