KVM hypervisor displaying "vcpu0 disabled perfctr wrmsr" messages

Solution Verified - Updated -

Issue

  • What are these warning messages on the RHEL 7.1 kvm hypervisor?

    kvm [4514]: vcpu0 disabled perfctr wrmsr: 0xc1 data 0xffff
kvm [4606]: vcpu0 disabled perfctr wrmsr: 0xc1 data 0xffff
kvm: zapping shadow pages for mmio generation wraparound
kvm [4640]: vcpu0 disabled perfctr wrmsr: 0xc1 data 0xffff
kvm: zapping shadow pages for mmio generation wraparound
kvm [4543]: vcpu0 disabled perfctr wrmsr: 0xc1 data 0xffff

Environment

  • Red Hat Enterprise Linux (RHEL) 7.1
  • KVM virtualization
  • Hardware: Hewlett-Packard ProLiant DL360 Gen9

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