linux-kernel - Re: [PATCH V13 04/10] arm64: exception: handle Synchronous External Abort

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Message-ID: <20170323170206.GA32309@e104818-lin.cambridge.arm.com>
Date:   Thu, 23 Mar 2017 17:02:06 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Tyler Baicar <tbaicar@...eaurora.org>
Cc:     christoffer.dall@...aro.org, marc.zyngier@....com,
        pbonzini@...hat.com, rkrcmar@...hat.com, linux@...linux.org.uk,
        will.deacon@....com, rjw@...ysocki.net, lenb@...nel.org,
        matt@...eblueprint.co.uk, robert.moore@...el.com,
        lv.zheng@...el.com, nkaje@...eaurora.org, zjzhang@...eaurora.org,
        mark.rutland@....com, james.morse@....com,
        akpm@...ux-foundation.org, eun.taik.lee@...sung.com,
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        shijie.huang@....com, rruigrok@...eaurora.org,
        paul.gortmaker@...driver.com, tn@...ihalf.com, fu.wei@...aro.org,
        rostedt@...dmis.org, bristot@...hat.com,
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        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
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        john.garry@...wei.com, shiju.jose@...wei.com, joe@...ches.com
Subject: Re: [PATCH V13 04/10] arm64: exception: handle Synchronous External
 Abort

On Tue, Mar 21, 2017 at 04:46:59PM -0600, Tyler Baicar wrote:
> SEA exceptions are often caused by an uncorrected hardware
> error, and are handled when data abort and instruction abort
> exception classes have specific values for their Fault Status
> Code.
> When SEA occurs, before killing the process, report the error
> in the kernel logs.
> Update fault_info[] with specific SEA faults so that the
> new SEA handler is used.
> 
> Signed-off-by: Tyler Baicar <tbaicar@...eaurora.org>
> CC: Jonathan (Zhixiong) Zhang <zjzhang@...eaurora.org>
> Reviewed-by: James Morse <james.morse@....com>
> ---
>  arch/arm64/include/asm/esr.h |  1 +
>  arch/arm64/mm/fault.c        | 43 +++++++++++++++++++++++++++++++++----------

Acked-by: Catalin Marinas <catalin.marinas@....com>