On 23/9/2022 7:59 am, Sean Christopherson wrote:
The bigger issue is that calling __kvm_perf_overflow() here can get false negatives. If reprogramming fails due to contention, the reprogram_pmi bit will be left set and so this check in __kvm_perf_overflow() will suppress the PMI.
I understand your motivation, and before we reprocess on "left set reprogram_pmi bit",
we may need reproducible cases to cover "reprogramming fails".
