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Date:   Fri, 26 Apr 2019 18:24:25 +0200
From:   Borislav Petkov <>
To:     Gary R Hook <>
Cc:     Thomas Gleixner <>,
        "Hook, Gary" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        Alexander Potapenko <>
Subject: Re: [PATCH] x86/mm/mem_encrypt: Disable all instrumentation for SME
 early boot code

On Fri, Apr 26, 2019 at 03:11:17PM +0000, Gary R Hook wrote:
> 2) Turn off instrumentation for lib/cmdline.c. The risk is that any
>     changes to its code would not enjoy the benefits of KASAN/etc testing
>     (if enabled).

What happened to Thomas' suggestion to turn off instrumentation for
those files only when CONFIG_AMD_MEM_ENCRYPT=y?

Which is a variant of 2) above with ifdeffery.


Good mailing practices for 400: avoid top-posting and trim the reply.

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