On Fri, Apr 09, 2021 at 11:24:07AM -0400, Liang, Kan wrote:
> diff --git a/include/uapi/linux/perf_event.h
> b/include/uapi/linux/perf_event.h
> index ad15e40..7ec80ac9 100644
> --- a/include/uapi/linux/perf_event.h
> +++ b/include/uapi/linux/perf_event.h
> @@ -38,6 +38,20 @@ enum perf_type_id {
> };
>
> /*
> + * attr.config layout for type PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE
> + * PERF_TYPE_HARDWARE: 0xEE000000AA
> + * AA: hardware event ID
> + * EE: PMU type ID
> + * PERF_TYPE_HW_CACHE: 0xEE00DDCCBB
> + * BB: hardware cache ID
> + * CC: hardware cache op ID
> + * DD: hardware cache op result ID
> + * EE: PMU type ID
it's: 0xEEEEEEEE00DDCCBB and 0xEEEEEEEE000000AA
