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: 5a15d834 ("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
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f58d6fbc
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