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authorJoerg Roedel <joerg.roedel@amd.com>2012-01-04 17:54:19 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-01-06 15:49:49 -0200
commit99320cc8240affcf33c04d28f47259de3b1a75d1 (patch)
tree77320e3f5327c9dbfbd20ede725395930c50a286 /tools/perf/Documentation/perf-list.txt
parent1aed2671738785e8f5aea663a6fda91aa7ef59b5 (diff)
downloadlinux-99320cc8240affcf33c04d28f47259de3b1a75d1.tar.gz
perf tools: Add support for guest/host-only profiling
To restrict a counter to either host or guest mode this patch introduces two new event modifiers: G and H. With G the counter is configured in guest-only mode and with H in host-only mode. Cc: Gleb Natapov <gleb@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Joerg Roedel <joro@8bytes.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Link: http://lkml.kernel.org/n/tip-or5aj3rghy9ngyg882z6kln9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-list.txt')
-rw-r--r--tools/perf/Documentation/perf-list.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index 7a527f7e9da9..ddc22525228d 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -21,6 +21,8 @@ EVENT MODIFIERS
Events can optionally have a modifer by appending a colon and one or
more modifiers. Modifiers allow the user to restrict when events are
counted with 'u' for user-space, 'k' for kernel, 'h' for hypervisor.
+Additional modifiers are 'G' for guest counting (in KVM guests) and 'H'
+for host counting (not in KVM guests).
The 'p' modifier can be used for specifying how precise the instruction
address should be. The 'p' modifier is currently only implemented for