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

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Message-ID: <20170720041950.GB14367@nazgul.tnic>
Date:   Thu, 20 Jul 2017 06:19:50 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Aristeu Rozanski <aris@...hat.com>
Cc:     "Kani, Toshimitsu" <toshi.kani@....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>,
        "tony.luck@...el.com" <tony.luck@...el.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 Wed, Jul 19, 2017 at 02:55:08PM -0400, Aristeu Rozanski wrote:
> That would also need to keep an eye on versions. A newer version of BIOS
> on a whitelisted platform might be broken.

Yeah, that would be a nasty, back-stabbing SNAFU.

So I'm thinking of adding a bunch of FW_ERR sanity checks to that whole
ghes_edac and ghes init code to hopefully catch issues during platform
validation. I.e., early enough for them to get fixed.

But that's the same problem as with UEFI - vendors need to try to boot
Linux on their platforms early enough.

-- 
Regards/Gruss,
    Boris.

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