176527 x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported

Authored and Committed by Borislav Petkov 2 years ago
    x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
    (bsc#1199657 CVE-2022-29900 CVE-2022-29901).
    
        
file modified
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