linux-kernel - Re: [PATCH] x86/mce: add support SRAO reported via CMC check

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Date:   Thu, 16 Nov 2017 13:15:10 -0800
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Xie XiuQi <xiexiuqi@...wei.com>
Cc:     Borislav Petkov <bp@...en8.de>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "hpa@...or.com" <hpa@...or.com>, "x86@...nel.org" <x86@...nel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        chen wei <chenwei68@...wei.com>
Subject: Re: [PATCH] x86/mce: add support SRAO reported via CMC check

On Thu, Nov 16, 2017 at 11:00:40AM +0800, Xie XiuQi wrote:
> How about this patch?

> +	/*
> +	 * known AO MCACODs reported via MCE or CMC:
> +	 *
> +	 * SRAO could be signaled either via a machine check exception or
> +	 * CMCI with the corresponding bit S 1 or 0. So we don't need to
> +	 * check bit S for SRAO.
> +	 */
> +	MCESEV(
> +		AO, "Action optional: memory scrubbing error",
> +		SER, MASK(MCI_STATUS_OVER|MCI_UC_AR|MCACOD_SCRUBMSK, MCI_STATUS_UC|MCACOD_SCRUB)
> +		),
> +	MCESEV(
> +		AO, "Action optional: last level cache writeback error",
> +		SER, MASK(MCI_STATUS_OVER|MCI_UC_AR|MCACOD, MCI_STATUS_UC|MCACOD_L3WB)
> +		),
> +

Yes. This looks good.

Reviewed-by: Tony Luck <tony.luck@...el.com>

-Tony