linux-kernel - Re: [PATCH v2 5/7] ghes_edac: add platform check to enable ghes

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Date:   Fri, 4 Aug 2017 21:06:27 +0000
From:   "Kani, Toshimitsu" <toshi.kani@....com>
To:     "bp@...en8.de" <bp@...en8.de>
CC:     "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "lenb@...nel.org" <lenb@...nel.org>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "tony.luck@...el.com" <tony.luck@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v2 5/7] ghes_edac: add platform check to enable ghes_edac

On Fri, 2017-08-04 at 10:31 +0200, Borislav Petkov wrote:
> On Thu, Aug 03, 2017 at 03:57:51PM -0600, Toshi Kani wrote:
> > The ghes_edac driver was introduced in 2013 [1], but it has not
> > been enabled by any distro yet.  This driver obtains error info
> > from firmware interfaces, which are not properly implemented on
> > many platforms, as the driver always emits the messages below:
> > 
> >  This EDAC driver relies on BIOS to enumerate memory and get error
> > reports.  Unfortunately, not all BIOSes reflect the memory layout
> > correctly  So, the end result of using this driver varies from
> > vendor to vendor  If you find incorrect reports, please contact
> > your hardware vendor to correct its BIOS.
> > 
> > To get out from this situation, add a platform check to selectively
> > enable the driver on the platforms that are known to have proper
> > firmware implementation.  Platform vendors can add their platforms
> > to the list when they support ghes_edac.
> > 
> > "ghes_edac.any_oem=1" skips this platform check.
> 
> There's that non-generic OEM thing again. NAK!

How about "ghes_edac.any_platform"?

Thanks,
-Toshi