linux-kernel - [PATCH 5/6] perf kvm report: Add guest

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Date:   Fri, 13 May 2022 12:02:36 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>, Leo Yan <leo.yan@...aro.org>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        kvm@...r.kernel.org
Subject: [PATCH 5/6] perf kvm report: Add guest_code support

Add an option to indicate that guest code can be found in the hypervisor
process.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/Documentation/perf-kvm.txt | 3 +++
 tools/perf/builtin-kvm.c              | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt
index cf95baef7b61..83c742adf86e 100644
--- a/tools/perf/Documentation/perf-kvm.txt
+++ b/tools/perf/Documentation/perf-kvm.txt
@@ -94,6 +94,9 @@ OPTIONS
 	kernel module information. Users copy it out from guest os.
 --guestvmlinux=<path>::
 	Guest os kernel vmlinux.
+--guest-code::
+	Indicate that guest code can be found in the hypervisor process,
+	which is a common case for KVM test programs.
 -v::
 --verbose::
 	Be more verbose (show counter open errors, etc).
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 2fa687f73e5e..3696ae97f149 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1603,6 +1603,8 @@ int cmd_kvm(int argc, const char **argv)
 			   "file", "file saving guest os /proc/kallsyms"),
 		OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
 			   "file", "file saving guest os /proc/modules"),
+		OPT_BOOLEAN(0, "guest-code", &symbol_conf.guest_code,
+			    "Guest code can be found in hypervisor process"),
 		OPT_INCR('v', "verbose", &verbose,
 			    "be more verbose (show counter open errors, etc)"),
 		OPT_END()
-- 
2.25.1