Messages in this thread | | | Date | Fri, 17 May 2013 11:45:51 +0200 | From | Borislav Petkov <> | Subject | Re: Drop WARN on AMD lack of perfctrs |
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On Fri, May 17, 2013 at 11:27:41AM +0200, Peter Zijlstra wrote: > But not all x86 hardware even has the stuff enumerated in CPUID, and > afaict Intel and AMD use a different CPUID bit as well, so what's > init_hw_perf_events() to do?
Yeah, I think the best solution would be if we force-enable the CPUID bit on F10h very early and teach amd_pmu_init() to look at it. I even had a patch which does something like that. I could dust it off and give it a try... I just hope we can actually enable a reserved bit in CPUID.
:-)
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
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