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Message-ID: <Y/PICc9IU5CWpfyQ@zn.tnic>
Date: Mon, 20 Feb 2023 20:20:41 +0100
From: Borislav Petkov <bp@...en8.de>
To: Josh Poimboeuf <jpoimboe@...nel.org>
Cc: KP Singh <kpsingh@...nel.org>, linux-kernel@...r.kernel.org,
pjt@...gle.com, evn@...gle.com, tglx@...utronix.de,
mingo@...hat.com, dave.hansen@...ux.intel.com, x86@...nel.org,
hpa@...or.com, peterz@...radead.org,
pawan.kumar.gupta@...ux.intel.com, kim.phillips@....com,
alexandre.chartre@...cle.com, daniel.sneddon@...ux.intel.com,
José Oliveira <joseloliveira11@...il.com>,
Rodrigo Branco <rodrigo@...nelhacking.com>,
Alexandra Sandulescu <aesa@...gle.com>,
Jim Mattson <jmattson@...gle.com>
Subject: Re: [PATCH] x86/bugs: Allow STIBP with IBRS
On Mon, Feb 20, 2023 at 11:09:08AM -0800, Josh Poimboeuf wrote:
> No it was supposed to be "no STIBP with *eIBRS*".
Ok, good.
> As far as I can tell, that document was never updated to describe
> spectre_v2=ibrs in the first place. That would be a whole 'nother patch
> which I'm not volunteering for. Nice try ;-)
What do you think the maintainers are for? To clean up after
people... ;-\
As a matter of fact, updating the documentation is already on my
ever-growing TODO list.
But for this patch I'd like to ask whoever of you does it, to add a one
or two sentences about why we need to allow STIBP selection with IBRS.
The rest of the documentation we'll flesh out in time.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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