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xen-devel
[Xen-devel] RE: [PATCH] Enable Px/Cx related CPUID/MSR bits for dom0
On Monday, May 05, 2008 5:27 PM, Keir Fraser wrote:
> Applied your patches, but why would you expose MWAIT as a usable
feature?
I can't exactly tell why. What I am sure is that X86_FEATURE_EST should
be exposed, otherwise ACPI _CST method invoking in dom0 will always
failed. MWAIT feature & MSR_IA32_MISC_ENABLE_MONITOR_ENABLE bit are
exposed just in case of possible needs. If I could make sure MWAIT
feature & MONITOR_ENABLE are not needed, I will send patch to remove
them.
> Maybe worth a comment explaining that, as otherwise it's not unlikely
to
> be cleaned up as a 'mistake' sometime in the future.
Ok, I will add comment after I can explain clearly.
Jimmy
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