Re: [PATCH] x86/CPU/AMD: Make sure EFER[AIBRSE] is set

[Borislav Petkov]

On Mon, Feb 27, 2023 at 07:25:00AM -0800, Dave Hansen wrote:
> It will freak some users out, but it does seem like the kind of thing we
> _want_ a bug report for.

You mean, something like:

	if (spectre_v2_in_ibrs_mode(spectre_v2_enabled) &&
	    cpu_has(c, X86_FEATURE_AUTOIBRS))
		WARN_ON_ONCE(msr_set_bit(MSR_EFER, _EFER_AUTOIBRS));

?

-- 
Regards/Gruss,
    Boris.

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