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authorJoerg Roedel <joerg.roedel@amd.com>2011-10-05 14:01:16 +0200
committerIngo Molnar <mingo@elte.hu>2011-10-06 13:00:28 +0200
commita240f76165e6255384d4bdb8139895fac7988799 (patch)
tree1c1f9f5aa459573bd0a084912f8629d08457e4e5
parent7b4f86ac057821740e8499afde6faf9c7b08f69f (diff)
perf, core: Introduce attrs to count in either host or guest mode
The two new attributes exclude_guest and exclude_host can bes used by user-space to tell the kernel to setup performance counter to either only count while the CPU is in guest or in host mode. An additional check is also introduced to make sure user-space does not try to exclude guest and host mode from counting. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1317816084-18026-2-git-send-email-gleb@redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--include/linux/perf_event.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c816075c01ce..1e9ebe5e0091 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -220,7 +220,10 @@ struct perf_event_attr {
mmap_data : 1, /* non-exec mmap data */
sample_id_all : 1, /* sample_type all events */
- __reserved_1 : 45;
+ exclude_host : 1, /* don't count in host */
+ exclude_guest : 1, /* don't count in guest */
+
+ __reserved_1 : 43;
union {
__u32 wakeup_events; /* wakeup every n events */