Re: [PATCH v8 09/12] x86/cpu: Add a configuration and command line option for Key Locker

[Borislav Petkov]

On Sat, Jun 03, 2023 at 08:22:24AM -0700, Chang S. Bae wrote:
> +static __init int x86_nokeylocker_setup(char *arg)
> +{
> +	/* Expect an exact match without trailing characters. */
> +	if (strlen(arg))
> +		return 0;
> +
> +	if (!cpu_feature_enabled(X86_FEATURE_KEYLOCKER))
> +		return 1;
> +
> +	setup_clear_cpu_cap(X86_FEATURE_KEYLOCKER);
> +	pr_info("x86/keylocker: Disabled by kernel command line.\n");
> +	return 1;
> +}
> +__setup("nokeylocker", x86_nokeylocker_setup);

Can we stop adding those just to remove them at some point later but
simply do:

clearcpuid=keylocker

?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette