Hi, Is there some way to start a KVM-accelerated VM with QEMU (on an Intel/VMX host) that is configured so that RDTSC/RDTSCP instructions won't cause a VM-exit?
According to Intel's manual, it seems I should disable the "RDTSC exiting" bit on the MSR that Linux identifies as MSR_IA32_VMX_PROCBASED_CTLS (in its KVM code). I've checked the vmxcap script from qemu: $ sudo /tmp/vmvm-vilanova/vmxcap.py | grep -i rdtsc RDTSC exiting yes Enable RDTSCP yes So, can I somehow curbe QEMU+KVM to disable RDTSC exiting? Thanks, Lluis
