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

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Message-ID: <20170721104001.3cd2b884@vento.lan>
Date:   Fri, 21 Jul 2017 10:40:01 -0300
From:   Mauro Carvalho Chehab <mchehab@...pensource.com>
To:     Borislav Petkov <bp@...en8.de>
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

Em Fri, 21 Jul 2017 15:34:41 +0200
Borislav Petkov <bp@...en8.de> escreveu:

> On Thu, Jul 20, 2017 at 07:50:03PM +0000, Kani, Toshimitsu wrote:
> > GHES / firmware-first still requires OS recovery actions when an error
> > cannot be corrected by the platform.  They are handled by ghes_proc(),
> > and ghes_edac remains its error-reporting wrapper. 

What happens when the error can be corrected? Does it still report it to
userspace, or just silently hide the error?

If I remember well about a past discussion with some vendor, I was told
that the firmware can hide some errors from being reported. Is it
still the case?


Thanks,
Mauro