Re: [PATCH] x86/mm/mem_encrypt: Disable all instrumentation for SME early boot code

[Borislav Petkov]

On Mon, Apr 29, 2019 at 08:16:07PM +0000, Gary R Hook wrote:
> Yes, option 4 would be a combination of using a local copy of strncmp()

Why the local copy?

> and disabling instrumentation (KASAN, KCOV, whatever) for
> arch/x86/lib/cmdline.c when SME is enabled.

I think this should suffice. You only disable instrumentation when
CONFIG_AMD_MEM_ENCRYPT=y and not do any local copies but use the generic
functions.

Hmm.

-- 
Regards/Gruss,
    Boris.

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