On Sun, Oct 27, 2019 at 07:11:12PM -0400, Luwei Kang wrote: @@ -99,7 +99,7 @@ static void kvm_perf_overflow_intr(struct perf_event *perf_event, > static void pmc_reprogram_counter(struct kvm_pmc *pmc, u32 type, > unsigned config, bool exclude_user, > bool exclude_kernel, bool intr, > - bool in_tx, bool in_tx_cp) > + bool in_tx, bool in_tx_cp, bool pebs) > { > struct perf_event *event; > struct perf_event_attr attr = { > @@ -111,9 +111,12 @@ static void pmc_reprogram_counter(struct kvm_pmc *pmc, u32 type, > .exclude_user = exclude_user, > .exclude_kernel = exclude_kernel, > .config = config, > + .precise_ip = pebs ? 1 : 0, > + .aux_output = pebs ? 1 : 0, srsly?