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

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Date:   Thu, 20 Jul 2017 16:55:59 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Borislav Petkov <bp@...en8.de>,
        "Kani, Toshimitsu" <toshi.kani@....com>
CC:     "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

>> Yes, the following message is shown on HP systems.  Please note that
>> WHEA is a Windows-defined interface.
>
> Ok, so let's couple ghes_edac loading to that and see how far we could
> go. I guess we should add checks for that to the major x86 EDAC drivers
> to not load and this way ghes_edac will be the only driver loading.
>
> Tony, how does that sound?

Add a module parameter to those edac drivers that can override the check
and let them load anyway.  I'm not paranoid, I just assume that there is a BIOS
out there that sets the OSC/WHEA bits, but isn't generating useful GHES logs.

-Tony