Messages in this thread | | | Date | Fri, 21 Mar 2014 12:29:38 -0700 | From | Andi Kleen <> | Subject | Re: GPF in intel_pmu_lbr_reset() with qemu -cpu host |
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On Fri, Mar 21, 2014 at 06:42:40PM +0100, Peter Wu wrote: > Hi, > > While trying to run QEMU with `-enable-kvm -host cpu`, I get a GPF in > intel_pmu_lbr_reset():
Same problem as the RAPL problem earlier. KVM is lying to the guest that it is a host CPU, but not implementing all MSRs the host CPU supports.
KVM should really return 0 on unknown MSRs not #GP
-Andi
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