linux-kernel - Re: [PATCH v2 1/2] x86/mce/AMD: Redo use of SMCA MCA

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Message-ID: <20170411133539.ky4lbn7yizhaaq43@pd.tnic>
Date:   Tue, 11 Apr 2017 15:35:39 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Ghannam, Yazen" <Yazen.Ghannam@....com>
Cc:     "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        Tony Luck <tony.luck@...el.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] x86/mce/AMD: Redo use of SMCA MCA_DE{STAT,ADDR}
 registers

On Tue, Apr 11, 2017 at 01:32:03PM +0000, Ghannam, Yazen wrote:
> Yes, exactly. Deferred errors are *always* logged in the DE* registers and

Then the solution is simple:

        for_each_bank()
                if (log_error()) {
			clear_msrs();
			continue;
		}

                if (mca_cfg.smca) {
                        log_error_from_de_regs()
			clear_msrs();
		}
	}

and clear_msrs() clears them all.

-- 
Regards/Gruss,
    Boris.

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