linux-kernel - Re: [PATCH] x86: kmsan: fix boot failure due to instrumentation

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Message-ID: <20240308054532.GAZeql_HPGb5lAU-jx@fat_crate.local>
Date: Fri, 8 Mar 2024 06:45:32 +0100
From: Borislav Petkov <bp@...en8.de>
To: Changbin Du <changbin.du@...wei.com>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
	Andy Lutomirski <luto@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Alexander Potapenko <glider@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com
Subject: Re: [PATCH] x86: kmsan: fix boot failure due to instrumentation

On Fri, Mar 08, 2024 at 12:44:01PM +0800, Changbin Du wrote:
> Instrumenting sev.c and mem_encrypt_identity.c with KMSAN will result in
> kernel being unable to boot. Some of the code are invoked too early in
> boot stage that before kmsan is ready.

How do you trigger this?

-- 
Regards/Gruss,
    Boris.

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