Date:   Mon, 20 Feb 2023 20:20:41 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Josh Poimboeuf <jpoimboe@kernel.org>
Cc:     KP Singh <kpsingh@kernel.org>, linux-kernel@vger.kernel.org,
        pjt@google.com, evn@google.com, tglx@linutronix.de,
        mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org,
        hpa@zytor.com, peterz@infradead.org,
        pawan.kumar.gupta@linux.intel.com, kim.phillips@amd.com,
        alexandre.chartre@oracle.com, daniel.sneddon@linux.intel.com,
        =?utf-8?B?Sm9zw6k=?= Oliveira <joseloliveira11@gmail.com>,
        Rodrigo Branco <rodrigo@kernelhacking.com>,
        Alexandra Sandulescu <aesa@google.com>,
        Jim Mattson <jmattson@google.com>
Subject: Re: [PATCH] x86/bugs: Allow STIBP with IBRS
Message-ID: <Y/PICc9IU5CWpfyQ@zn.tnic>
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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