Getting cpu0 disabled

Hello

Recently I noticed this messages in one of my Proxmox VE nodes:

kvm: 2366: cpu0 disabled perfctr wrmsr: 0xc1 data 0xffffffffff1b1e41
kvm: 2366: cpu0 disabled perfctr wrmsr: 0x186 data 0x5100c0
kvm: 2366: cpu0 disabled perfctr wrmsr: 0x0
kvm: 2366: cpu0 disabled perfctr wrmsr: 0x186 data 0x5100c0
kvm: 2366: cpu0 disabled perfctr wrmsr: 0x0
kvm: 2366: cpu0 disabled perfctr wrmsr: 0x186 data 0x5100c0
kvm: 2366: cpu0 disabled perfctr wrmsr: 0x0

I migrated the OpenVZ machines of this node to another and let just one KVM. That KVM is running normally, but I'm worried about those messages.

Best regards