On Fri, 2018-01-26 at 19:41 +0100, Borislav Petkov wrote: > +#define X86_FEATURE_AMD_IBPB (13*32+12) /* "" Indirect Branch > Prediction Barrier MSR */
Stray quotes. > +#define X86_FEATURE_IBRS (13*32+14) /* Indirect Branch > Restricted Speculation */ Please don't call it that. Call it X86_FEATURE_AMD_IBRS and leave X86_FEATURE_IBRS to parallel X86_FEATURE_IBPB as the *software* bit which is vendor-independent.
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