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| author | Peter Zijlstra <peterz@infradead.org> | 2022-06-15 00:16:04 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-06-27 11:34:00 +0300 |
| commit | d7caac991feeef1b871ee6988fd2c9725df09039 (patch) | |
| tree | 3898bfd6d98b4721394662c2af34ab2c69fbc558 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | a09a6e2399ba0595c3042b3164f3ca68a3cff33e (diff) | |
| download | linux-d7caac991feeef1b871ee6988fd2c9725df09039.tar.xz | |
x86/cpu/amd: Add Spectral Chicken
Zen2 uarchs have an undocumented, unnamed, MSR that contains a chicken
bit for some speculation behaviour. It needs setting.
Note: very belatedly AMD released naming; it's now officially called
MSR_AMD64_DE_CFG2 and MSR_AMD64_DE_CFG2_SUPPRESS_NOBR_PRED_BIT
but shall remain the SPECTRAL CHICKEN.
Suggested-by: Andrew Cooper <Andrew.Cooper3@citrix.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions