vtune on a virtual machine

Hi,

I am running a virtual machine, the guset and host OS are ubuntu 12.04, 3.11.0-17-generic. I am running vtune within a VM, I was able to

run the basic hotspots test. But when I tried core2-memory-access, I get the following error:

amplxe: Error: PMU resources are not available. Hardware Event-based Sampling is not supported on this operating system. PMU resources may be made unavailable either by the BIOS or Hypervisor.

How do I get past this?

Thanks,

Dhanesh.