Time on KVM guests off by 2-3 seconds on AMD Opteron(TM) Processor 6276

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Issue

The time on KVM guests is off by 2-3 seconds on AMD Opteron(TM) Processor 6276. The kvm guests are using kvm-clock for the clocksource, with ntpd running, but the guest is showing as being 2-3 seconds delayed from the host.

Environment

Host CPU - AMD Opteron(TM) Processor 6276
VM CPU Info - QEMU Virtual CPU version (cpu64-rhel6)
Guests using KVM

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