diff options
| author | Kim Phillips <kim.phillips@amd.com> | 2021-08-17 17:10:42 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-08-26 08:58:02 +0200 |
| commit | 26db2e0c51fe83e1dd852c1321407835b481806e (patch) | |
| tree | 30b289fd7faadcd661cbad57e2c0740023e77ad5 /fs/fscache | |
| parent | 0b3a8738b76fe2087f7bc2bd59f4c78504c79180 (diff) | |
perf/x86/amd/ibs: Work around erratum #1197
Erratum #1197 "IBS (Instruction Based Sampling) Register State May be
Incorrect After Restore From CC6" is published in a document:
"Revision Guide for AMD Family 19h Models 00h-0Fh Processors" 56683 Rev. 1.04 July 2021
https://bugzilla.kernel.org/show_bug.cgi?id=206537
Implement the erratum's suggested workaround and ignore IBS samples if
MSRC001_1031 == 0.
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210817221048.88063-3-kim.phillips@amd.com
Diffstat (limited to 'fs/fscache')
0 files changed, 0 insertions, 0 deletions