Hi! > [ Upstream commit 710c476514313c74045c41c0571bb5178fd16e3d ] > > AMD's event select is 3 nybbles, with the high nybble in bits 35:32 of > a PerfEvtSeln MSR. Don't mask off the high nybble when configuring a > RAW perf event. Ok, but this depends on b8bfee "KVM: x86/pmu: Don't truncate the PerfEvtSeln MSR when creating a perf event", and that is backported to 5.10 but not 4.19... so we don't need this, either, right...? Best regards, Pavel > +++ b/arch/x86/kvm/pmu.c > @@ -171,7 +171,7 @@ void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel) > } > > if (type == PERF_TYPE_RAW) > - config = eventsel & X86_RAW_EVENT_MASK; > + config = eventsel & AMD64_RAW_EVENT_MASK; > > pmc_reprogram_counter(pmc, type, config, > !(eventsel & ARCH_PERFMON_EVENTSEL_USR), -- http://www.livejournal.com/~pavelmachek
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