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Groups > linux.kernel > #1215532
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] perf/x86/intel/pt: Export cpu frequency ratios needed by PT decoders |
| Date | 2015-08-28 21:40 +0200 |
| Message-ID | <q2xFg-4lL-13@gated-at.bofh.it> (permalink) |
| References | <q26Yq-828-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Alexander Shishkin <alexander.shishkin@linux.intel.com> writes: > + return sprintf(page, "%lu\n", val); > + case 1: > + cpuid(0x15, &eax, &ebx, &ecx, &edx); Surely this needs to be protected by a cpuid level check? Broadwell for once doesn't have CPUID 0x15. -Andi -- ak@linux.intel.com -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH] perf/x86/intel/pt: Export cpu frequency ratios needed by PT decoders Alexander Shishkin <alexander.shishkin@linux.intel.com> - 2015-08-27 17:10 +0200
Re: [PATCH] perf/x86/intel/pt: Export cpu frequency ratios needed by PT decoders Andi Kleen <andi@firstfloor.org> - 2015-08-28 21:40 +0200
Re: [PATCH] perf/x86/intel/pt: Export cpu frequency ratios needed by PT decoders Alexander Shishkin <alexander.shishkin@linux.intel.com> - 2015-08-31 15:00 +0200
Re: [PATCH] perf/x86/intel/pt: Export cpu frequency ratios needed by PT decoders Andi Kleen <andi@firstfloor.org> - 2015-08-31 22:10 +0200
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