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(parent: f58d6fb) | patch
x86/srso: Disable the mitigation on unaffected configurations
authorBorislav Petkov (AMD) <bp@alien8.de>
Sun, 13 Aug 2023 10:39:34 +0000 (12:39 +0200)
committerBorislav Petkov (AMD) <bp@alien8.de>
Mon, 14 Aug 2023 09:28:51 +0000 (11:28 +0200)
commite9fbc47b818b964ddff5df5b2d5c0f5f32f4a147
tree7bb7e29d396f1e359be66aa91177791bc100f2c8tree
parentf58d6fbcb7c848b7f2469be339bc571f2e9d245bcommit | diff
x86/srso: Disable the mitigation on unaffected configurations

Skip the srso cmd line parsing which is not needed on Zen1/2 with SMT
disabled and with the proper microcode applied (latter should be the
case anyway) as those are not affected.

Fixes: 5a15d8348881 ("x86/srso: Tie SBPB bit setting to microcode patch detection")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230813104517.3346-1-bp@alien8.de
arch/x86/kernel/cpu/bugs.c diff | blob | history
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