linux-kernel - [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: Windows password security audit tool. GUI, reports in PDF.

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

Date:   Mon, 11 Jul 2022 12:32:10 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: [PATCH 27/35] perf tools: Add perf_event__is_guest()

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
@@ -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