[RFC 3/4] perf kvm: Enable 'report' on powerpc

2016-02-24 Thread Ravi Bangoria
'perf kvm record' on powerpc will record kvm_hv:kvm_guest_exit event instead of cycles. However, to have some kind of periodicity, we can't use all the kvm exits, rather exits which are bound to happen in certain intervals. HV_DECREMENTER Interrupt forces the threads to exit after an interval of

[RFC 3/4] perf kvm: Enable 'report' on powerpc

2016-02-24 Thread Ravi Bangoria
'perf kvm record' on powerpc will record kvm_hv:kvm_guest_exit event instead of cycles. However, to have some kind of periodicity, we can't use all the kvm exits, rather exits which are bound to happen in certain intervals. HV_DECREMENTER Interrupt forces the threads to exit after an interval of