Merge branch 'linus' into perf/core, to pick up fixes

[platform/kernel/linux-starfive.git] / tools / perf / design.txt

diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index a28dca2..0453ba2 100644 (file)
--- 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.
 
 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,
 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,