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| author | Borislav Petkov (AMD) <bp@alien8.de> | 2026-10-02 14:16:17 -0700 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2026-10-05 10:29:08 -0700 |
| commit | 87db7795cbaaf636ae22ae031f4906db7bb77803 (patch) | |
| tree | 863060452b469999d19800ccc7feaed79cc1c3fe /tools/lib/python/kdoc | |
| parent | a90ee4305c4a5df72c11b31dacfdc76e00fcf78a (diff) | |
| download | linux-next-87db7795cbaaf636ae22ae031f4906db7bb77803.tar.gz linux-next-87db7795cbaaf636ae22ae031f4906db7bb77803.zip | |
x86/CPU/AMD: Fix AMD TLBI Erratum #1718
The processor may fail to invalidate a TLB entry while executing an
INVLPGB/TLBSYNC instruction pair.
Detect the erratum and apply a software workaround when a microcode fix
is not present.
Fixes: 82378c6c2f43 ("x86/mm: Use INVLPGB for kernel TLB flushes")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Rik van Riel <riel@surriel.com>
Acked-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Tested-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Tested-by: Rik van Riel <riel@surriel.com>
Cc: stable@kernel.org
Link: https://patch.msgid.link/20261002211617.1001617-1-bp@kernel.org
Diffstat (limited to 'tools/lib/python/kdoc')
0 files changed, 0 insertions, 0 deletions