linux-kernel - Re: [PATCH 27/35] perf tools: Add perf_event__is

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 19 Jul 2022 18:11:47 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: Re: [PATCH 27/35] perf tools: Add perf_event__is_guest()

On Mon, Jul 11, 2022 at 2:33 AM Adrian Hunter <adrian.hunter@...el.com> wrote:
>
> Add a helper function to determine if an event is a guest event.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
> ---
>  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
>