Messages in this thread |  | | Date | Sun, 9 Oct 2016 18:28:23 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v3 07/18] x86/intel_rdt: Add Haswell feature discovery |
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On Sun, Oct 09, 2016 at 10:09:37AM -0700, Fenghua Yu wrote: > The MSR is not guaranteed on every stepping of the family and model machine > because some parts may have the MSR fused off. And some bits in the MSR > may not be implemented on some parts. And in KVM or guest, the MSR may not > implemented. Those are reasons why we use wrmsr_safe/rdmsr_safe in Haswell > probe.
Please add that info in a comment somewhere there as we'll all forget about it otherwise.
Thanks.
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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