Hi Gleb, I noticed that arch/x86/kvm/pmu.c is on your management and I have some questions about PMU in KVM. Thanks ahead if you can spare time answering these questions. 1. How could PMU cooperate with Intel VT? For example, I only find flags in IA32_PERFEVTSELx MSRs to count in OS and USER mode (Ring 0 and other rings). What is the consequence when I open VMXON with PMU enabled? Can I distinguish the counts in root and non-root mode? I cannot find the related descriptions in Intel manual. 2. What is the current status of vPMU in KVM? Is it auto-enabled? And how can I use (or enable/disable) it? Thanks, Arthur -- Arthur Chunqi Li Department of Computer Science School of EECS Peking University Beijing, China -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
