diff options
| author | Suresh Siddha <[email protected]> | 2010-07-19 16:05:52 -0700 |
|---|---|---|
| committer | H. Peter Anvin <[email protected]> | 2010-07-19 17:52:24 -0700 |
| commit | 6bad06b768920e278c7cedfdda56a0b4c6a35ee9 (patch) | |
| tree | d84dd7d1f0f9afcf4880cea734bf3a32e8e9804c /tools/perf/util/trace-event-scripting.c | |
| parent | 29104e101d710dd152f807978884643a52eca8b7 (diff) | |
x86, xsave: Use xsaveopt in context-switch path when supported
xsaveopt is a more optimized form of xsave specifically designed
for the context switch usage. xsaveopt doesn't save the state that's not
modified from the prior xrstor. And if a specific feature state gets
modified to the init state, then xsaveopt just updates the header bit
in the xsave memory layout without updating the corresponding memory
layout.
Signed-off-by: Suresh Siddha <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions