linux-kernel - Re: [PATCH] x86: Disable CET instrumentation in the kernel

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Message-ID: <20210129163048.GD27841@zn.tnic>
Date:   Fri, 29 Jan 2021 17:30:48 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     x86@...nel.org, Masami Hiramatsu <masami.hiramatsu@...il.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Alexei Starovoitov <ast@...nel.org>, bpf@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>,
        Nikolay Borisov <nborisov@...e.com>
Subject: Re: [PATCH] x86: Disable CET instrumentation in the kernel

On Fri, Jan 29, 2021 at 09:10:34AM -0600, Josh Poimboeuf wrote:
> Maybe eventually.  But the enablement (actually enabling CET/CFI/etc)
> happens in the arch code anyway, right?  So it could be a per-arch
> decision.

Right.

Ok, for this one, what about

Cc: <stable@...r.kernel.org>

?

What are "some configurations of GCC"? If it can be reproduced with
what's released out there, maybe that should go in now, even for 5.11?

Hmm?

-- 
Regards/Gruss,
    Boris.

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