[PATCH v4 01/13] perf/doc: update design.txt for exclude_{host|guest} flags
Andrew Murray
andrew.murray at arm.com
Tue Jan 8 03:27:18 AEDT 2019
Update design.txt to reflect the presence of the exclude_host
and exclude_guest perf flags.
Signed-off-by: Andrew Murray <andrew.murray at arm.com>
---
tools/perf/design.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index a28dca2..0453ba2 100644
--- a/tools/perf/design.txt
+++ b/tools/perf/design.txt
@@ -222,6 +222,10 @@ The 'exclude_user', 'exclude_kernel' and 'exclude_hv' bits provide a
way to request that counting of events be restricted to times when the
CPU is in user, kernel and/or hypervisor mode.
+Furthermore the 'exclude_host' and 'exclude_guest' bits provide a way
+to request counting of events restricted to guest and host contexts when
+using Linux as the hypervisor.
+
The 'mmap' and 'munmap' bits allow recording of PROT_EXEC mmap/munmap
operations, these can be used to relate userspace IP addresses to actual
code, even after the mapping (or even the whole process) is gone,
--
2.7.4
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