KVM calls kvm_pmu_set_counter_event_type() when PMCCFILTR is configured.
But this function can't deals with PMCCFILTR correctly because the evtCount
bit of PMCCFILTR, which is reserved 0, conflits with the SW_INCR event
type of other PMXEVTYPER registers. To fix it, when eventsel == 0, this
KVM calls kvm_pmu_set_counter_event_type() when PMCCFILTR is configured.
But this function can't deals with PMCCFILTR correctly because the evtCount
bit of PMCCFILTR, which is reserved 0, conflits with the SW_INCR event
type of other PMXEVTYPER registers. To fix it, when eventsel == 0, this
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