linux-kernel - Re: [PATCH v6 38/76] x86/head/64: Set CR4.FSGSBASE early

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Message-ID: <20200831092630.GC27517@zn.tnic>
Date:   Mon, 31 Aug 2020 11:26:30 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Joerg Roedel <joro@...tes.org>
Cc:     x86@...nel.org, Joerg Roedel <jroedel@...e.de>, hpa@...or.com,
        Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Jiri Slaby <jslaby@...e.cz>,
        Dan Williams <dan.j.williams@...el.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Juergen Gross <jgross@...e.com>,
        Kees Cook <keescook@...omium.org>,
        David Rientjes <rientjes@...gle.com>,
        Cfir Cohen <cfir@...gle.com>,
        Erdem Aktas <erdemaktas@...gle.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Mike Stunes <mstunes@...are.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Martin Radev <martin.b.radev@...il.com>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v6 38/76] x86/head/64: Set CR4.FSGSBASE early

On Mon, Aug 31, 2020 at 10:58:10AM +0200, Joerg Roedel wrote:
> This is not needed on the boot CPU, but only on secondary CPUs. When
> those are brought up the alternatives have been patches already. The
> commit message should probably be more clear about that, I will fix
> that.

Hell yeah - you need to talk more in those commit messages sir! See,
we're not in your head... :-)))

And pls put that as a comment over the code - the commit message will
not be that easily accessible in years.

Thx.

-- 
Regards/Gruss,
    Boris.

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