linux-kernel - Re: [PATCH 3/3] ghes_edac: add platform check to enable ghes

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Message-ID: <20170719055544.GE26030@nazgul.tnic>
Date:   Wed, 19 Jul 2017 07:55:44 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Kani, Toshimitsu" <toshi.kani@....com>
Cc:     "tony.luck@...el.com" <tony.luck@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "srinivas.pandruvada@...ux.intel.com" 
        <srinivas.pandruvada@...ux.intel.com>,
        "lenb@...nel.org" <lenb@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>
Subject: Re: [PATCH 3/3] ghes_edac: add platform check to enable ghes_edac

On Tue, Jul 18, 2017 at 07:58:54PM +0000, Kani, Toshimitsu wrote:
> I have HPE Haswell and Skylake test systems with GHES, but they do not
> hide IMCs from the OS.  So, the sb_edac and skx_edac drivers get
> attached on these systems when ghes_edac is disabled.

That's how it is supposed to work. The platform drivers are the
fallback, practically.

But this is the important piece of info I was looking for - having GHES
enabled in the firmware does not prevent the platform drivers from
loading. But I think we have a better solution, the FF thing.

> Hmm... what's the platform name of this box?  I can look into this case
> if you need.

You can but that's not addressing the issue as a whole so it'll be a
waste of time.

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--