Re: [PATCH 27/35] perf tools: Add perf_event__is_guest()

[Ian Rogers]

On Mon, Jul 11, 2022 at 2:33 AM Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
>
> Add a helper function to determine if an event is a guest event.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
>  tools/perf/util/event.h | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
>
> diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
> index a660f304f83c..a7b0931d5137 100644
> --- a/tools/perf/util/event.h
> +++ b/tools/perf/util/event.h

Would this be better under tools/lib/perf ?

Thanks,
Ian

> @@ -484,4 +484,25 @@ void arch_perf_synthesize_sample_weight(const struct perf_sample *data, __u64 *a
>  const char *arch_perf_header_entry(const char *se_header);
>  int arch_support_sort_key(const char *sort_key);
>
> +static inline bool perf_event_header__cpumode_is_guest(u8 cpumode)
> +{
> +       return cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
> +              cpumode == PERF_RECORD_MISC_GUEST_USER;
> +}
> +
> +static inline bool perf_event_header__misc_is_guest(u16 misc)
> +{
> +       return perf_event_header__cpumode_is_guest(misc & PERF_RECORD_MISC_CPUMODE_MASK);
> +}
> +
> +static inline bool perf_event_header__is_guest(const struct perf_event_header *header)
> +{
> +       return perf_event_header__misc_is_guest(header->misc);
> +}
> +
> +static inline bool perf_event__is_guest(const union perf_event *event)
> +{
> +       return perf_event_header__is_guest(&event->header);
> +}
> +
>  #endif /* __PERF_RECORD_H */
> --
> 2.25.1
>