Re: [PATCH kvm/queue v2 3/3] KVM: x86/pmu: Setup the {inte|amd}_event_mapping[] when hardware_setup

[Paolo Bonzini]

On 1/17/22 09:53, Like Xu wrote:
> +
> +	for (i = 0; i < PERF_COUNT_HW_MAX; i++) {
> +		config = perf_get_hw_event_config(i) & 0xFFFFULL;
> +
> +		kernel_hw_events[i] = (struct kvm_event_hw_type_mapping){
> +			.eventsel = config & ARCH_PERFMON_EVENTSEL_EVENT,
> +			.unit_mask = (config & ARCH_PERFMON_EVENTSEL_UMASK) >> 8,
> +			.event_type = i,
> +		};

Should event_type be PERF_COUNT_HW_MAX if config is zero?

Thanks,

Paolo