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| author | Tom Lendacky <[email protected]> | 2018-07-02 21:36:02 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-07-03 07:45:48 +0000 |
| commit | 612bc3b3d4be749f73a513a17d9b3ee1330d3487 (patch) | |
| tree | a10a1e57ce669e40a26ab23f7f3248dccb3787e7 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | x86/bugs: Update when to check for the LS_CFG SSBD mitigation (diff) | |
| download | kernel-612bc3b3d4be749f73a513a17d9b3ee1330d3487.tar.gz kernel-612bc3b3d4be749f73a513a17d9b3ee1330d3487.zip | |
x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
On AMD, the presence of the MSR_SPEC_CTRL feature does not imply that the
SSBD mitigation support should use the SPEC_CTRL MSR. Other features could
have caused the MSR_SPEC_CTRL feature to be set, while a different SSBD
mitigation option is in place.
Update the SSBD support to check for the actual SSBD features that will
use the SPEC_CTRL MSR.
Signed-off-by: Tom Lendacky <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Fixes: 6ac2f49edb1e ("x86/bugs: Add AMD's SPEC_CTRL MSR usage")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions