linux-kernel - Re: [PATCH] x86/cpuid: Deal with broken firmware once more

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Message-ID: <20161110113929.GV3142@twins.programming.kicks-ass.net>
Date:   Thu, 10 Nov 2016 12:39:29 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     "M. Vefa Bicakci" <m.v.b@...box.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        "Charles (Chas) Williams" <ciwillia@...cade.com>,
        "x86@...nel.org" <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        David Vrabel <david.vrabel@...rix.com>,
        Juergen Gross <jgross@...e.com>
Subject: Re: [PATCH] x86/cpuid: Deal with broken firmware once more

On Thu, Nov 10, 2016 at 12:13:04PM +0100, Thomas Gleixner wrote:
> What's so wrong with storing the fricking firmware supplied APICid as
> everybody else does and report it back when queried?
> 
> This damned attitude of we just hack the code into submission and let
> everybody else deal with the outcoming is utterly annoying.

At some point I'd recommend just marking things BROKEN and getting on
with life. There's only so much crap you can deal with.

What Xen does here is completely insane.