[PATCH v4 01/13] perf/doc: update design.txt for exclude_{host|guest} flags
From: Andrew Murray <hidden>
Date: 2019-01-07 16:27:47
Also in:
linux-alpha, linux-arm-kernel, lkml
Subsystem:
performance events subsystem, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
Update design.txt to reflect the presence of the exclude_host and exclude_guest perf flags. Signed-off-by: Andrew Murray <redacted> --- 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