Messages in this thread | | | Date | Fri, 03 Jan 2014 23:06:21 +0100 | From | Paolo Bonzini <> | Subject | Re: intel_pstate divide error with v3.13-rc4-256-gb7000ad |
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Il 03/01/2014 21:00, Dirk Brandewie ha scritto: > + case MSR_IA32_MPERF: > + case MSR_IA32_APERF:
These should never be accessed. A KVM VM will always have CPUID[06H].ECX = 0, and the Intel manual says that the MSRs are only present if CPUID returns that value with bit 0 set.
I think the actual bug is that intel_pstate_init does not check the feature bits in CPUID (either manually or via x86_match_cpu).
Paolo
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