diff options
| author | Gleb Natapov <[email protected]> | 2012-08-09 11:52:34 +0300 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2012-08-13 19:01:04 +0200 |
| commit | 26a4f3c08de49c1437a7b7f97693cf22d8c31656 (patch) | |
| tree | 3f1bafcd6e9cac2dfb0d26236d79fcc9ba970938 /tools/perf/util/trace-event-scripting.c | |
| parent | cb37af77124e8532e6ae3f9ca332593ba423b5f8 (diff) | |
perf/x86: disable PEBS on a guest entry.
If PMU counter has PEBS enabled it is not enough to disable counter
on a guest entry since PEBS memory write can overshoot guest entry
and corrupt guest memory. Disabling PEBS during guest entry solves
the problem.
Tested-by: David Ahern <[email protected]>
Signed-off-by: Gleb Natapov <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions