linux-kernel - Re: [RFC PATCH] x86/mce: Check MCi_STATUS[MISCV] for usable addr on Intel only

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Message-ID: <20170418221113.voi7vdq7gaimyvbg@pd.tnic>
Date:   Wed, 19 Apr 2017 00:11:13 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Ghannam, Yazen" <Yazen.Ghannam@....com>
Cc:     Tony Luck <tony.luck@...el.com>,
        linux-edac <linux-edac@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] x86/mce: Check MCi_STATUS[MISCV] for usable addr on
 Intel only

On Tue, Apr 18, 2017 at 09:26:03PM +0000, Ghannam, Yazen wrote:
> We definitely don't need to look at MiscV.
> 
> But the value in MCA_ADDR isn't necessarily a system physical address. It can be,
> or it can be a normalized address in the case of UMCs, or it can a set/way for caches.
> So it depends on the bank type and error type.

Right, this is all future work. mce_usable_address() would need some
beefing up then.

> All this may just be for SMCA systems though. I need to double check.

Thanks!

-- 
Regards/Gruss,
    Boris.

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