linux-kernel - Re: [PATCH] x86/thermal: Fix LVT thermal setup for SMI delivery mode

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Message-ID: <0357878b-a167-cc95-894e-5f553bacfd8b@nurealm.net>
Date:   Mon, 31 May 2021 12:26:53 -0600
From:   James Feeney <james@...ealm.net>
To:     Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Borislav Petkov <bp@...e.de>, linux-smp@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>,
        lkml <linux-kernel@...r.kernel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        x86-ml <x86@...nel.org>
Subject: Re: [PATCH] x86/thermal: Fix LVT thermal setup for SMI delivery mode

On 5/28/21 5:19 AM, Borislav Petkov wrote:
> On Fri, May 28, 2021 at 10:23:42AM +0200, Thomas Gleixner wrote:
>> So you could disable CPU_SUP_INTEL ... Should still boot with reduced
>> functionality.
> 
> *If* you disable it and *if* that intel_init_thermal() is really there
> to unstick those cores, then you might not even boot successfully.
> 
>> What a mess...
> 
> When is it not when SMM is involved?
> 
> That stinking goo underneath the OS needs to be open sourced so that we
> can replace it with something small and sane. BIOS morons will never
> learn not to fiddle with architectural components.
> 

Has the patch that resolves - or at least pacifies - this issue been forwarded downstream to GKH for mainline yet?  I'd like to be able to upgrade with stock kernels again.

James