AMD64_EVENTSEL_HOSTONLY
cpuc->perf_ctr_virt_mask = AMD64_EVENTSEL_HOSTONLY;
event->hw.config |= AMD64_EVENTSEL_HOSTONLY;
cpuc->perf_ctr_virt_mask = AMD64_EVENTSEL_HOSTONLY;
pmc->eventsel_hw = (data & ~AMD64_EVENTSEL_HOSTONLY) |