linux-kernel - Re: [RFC PATCH v2 1/3] x86: cpu/bugs: update SpectreRSB comments for AMD

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Message-ID: <20241113212440.slbdllbdvbnk37hu@jpoimboe>
Date: Wed, 13 Nov 2024 13:24:40 -0800
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: Borislav Petkov <bp@...en8.de>
Cc: Andrew Cooper <andrew.cooper3@...rix.com>, Amit Shah <amit@...nel.org>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org, x86@...nel.org,
	linux-doc@...r.kernel.org, amit.shah@....com,
	thomas.lendacky@....com, tglx@...utronix.de, peterz@...radead.org,
	pawan.kumar.gupta@...ux.intel.com, corbet@....net, mingo@...hat.com,
	dave.hansen@...ux.intel.com, hpa@...or.com, seanjc@...gle.com,
	pbonzini@...hat.com, daniel.sneddon@...ux.intel.com,
	kai.huang@...el.com, sandipan.das@....com,
	boris.ostrovsky@...cle.com, Babu.Moger@....com,
	david.kaplan@....com, dwmw@...zon.co.uk
Subject: Re: [RFC PATCH v2 1/3] x86: cpu/bugs: update SpectreRSB comments for
 AMD

On Tue, Nov 12, 2024 at 12:58:11PM +0100, Borislav Petkov wrote:
> On Mon, Nov 11, 2024 at 05:46:44PM -0800, Josh Poimboeuf wrote:
> > Subject: [PATCH] x86/bugs: Update insanely long comment about RSB attacks
> 
> Why don't you stick this insanely long comment in
> Documentation/admin-guide/hw-vuln/ while at it?
> 
> Its place is hardly in the code. You can point to it from the code tho...

There are a lot of subtle details to this $#!tstorm, and IMO we probably
wouldn't be having these discussions in the first place if the comment
lived in the docs, as most people seem to ignore them...

-- 
Josh