From mboxrd@z Thu Jan 1 00:00:00 1970 From: Catalin Marinas Subject: Re: [PATCH V13 04/10] arm64: exception: handle Synchronous External Abort Date: Thu, 23 Mar 2017 17:02:06 +0000 Message-ID: <20170323170206.GA32309@e104818-lin.cambridge.arm.com> References: <1490136425-4324-1-git-send-email-tbaicar@codeaurora.org> <1490136425-4324-5-git-send-email-tbaicar@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1490136425-4324-5-git-send-email-tbaicar@codeaurora.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To: Tyler Baicar Cc: linux-efi@vger.kernel.org, kvm@vger.kernel.org, matt@codeblueprint.co.uk, will.deacon@arm.com, robert.moore@intel.com, paul.gortmaker@windriver.com, lv.zheng@intel.com, kvmarm@lists.cs.columbia.edu, fu.wei@linaro.org, zjzhang@codeaurora.org, linux@armlinux.org.uk, linux-acpi@vger.kernel.org, eun.taik.lee@samsung.com, shijie.huang@arm.com, labbott@redhat.com, lenb@kernel.org, harba@codeaurora.org, john.garry@huawei.com, marc.zyngier@arm.com, punit.agrawal@arm.com, rostedt@goodmis.org, nkaje@codeaurora.org, sandeepa.s.prabhu@gmail.com, linux-arm-kernel@lists.infradead.org, devel@acpica.org, rjw@rjwysocki.net, rruigrok@codeaurora.org, linux-kernel@vger.kernel.org, astone@redhat.com, hanjun.guo@linaro.org, joe@perches.com, pbonzini@redhat.com, akpm@linux-foundation.org, bristot@redhat.com, shiju.jose@huawei.com List-Id: linux-acpi@vger.kernel.org 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 > CC: Jonathan (Zhixiong) Zhang > Reviewed-by: James Morse > --- > arch/arm64/include/asm/esr.h | 1 + > arch/arm64/mm/fault.c | 43 +++++++++++++++++++++++++++++++++---------- Acked-by: Catalin Marinas From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934989AbdCWRCV (ORCPT ); Thu, 23 Mar 2017 13:02:21 -0400 Received: from foss.arm.com ([217.140.101.70]:59782 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755906AbdCWRCQ (ORCPT ); Thu, 23 Mar 2017 13:02:16 -0400 Date: Thu, 23 Mar 2017 17:02:06 +0000 From: Catalin Marinas To: Tyler Baicar Cc: christoffer.dall@linaro.org, marc.zyngier@arm.com, pbonzini@redhat.com, rkrcmar@redhat.com, linux@armlinux.org.uk, will.deacon@arm.com, rjw@rjwysocki.net, lenb@kernel.org, matt@codeblueprint.co.uk, robert.moore@intel.com, lv.zheng@intel.com, nkaje@codeaurora.org, zjzhang@codeaurora.org, mark.rutland@arm.com, james.morse@arm.com, akpm@linux-foundation.org, eun.taik.lee@samsung.com, sandeepa.s.prabhu@gmail.com, labbott@redhat.com, shijie.huang@arm.com, rruigrok@codeaurora.org, paul.gortmaker@windriver.com, tn@semihalf.com, fu.wei@linaro.org, rostedt@goodmis.org, bristot@redhat.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-efi@vger.kernel.org, devel@acpica.org, Suzuki.Poulose@arm.com, punit.agrawal@arm.com, astone@redhat.com, harba@codeaurora.org, hanjun.guo@linaro.org, john.garry@huawei.com, shiju.jose@huawei.com, joe@perches.com Subject: Re: [PATCH V13 04/10] arm64: exception: handle Synchronous External Abort Message-ID: <20170323170206.GA32309@e104818-lin.cambridge.arm.com> References: <1490136425-4324-1-git-send-email-tbaicar@codeaurora.org> <1490136425-4324-5-git-send-email-tbaicar@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1490136425-4324-5-git-send-email-tbaicar@codeaurora.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 > CC: Jonathan (Zhixiong) Zhang > Reviewed-by: James Morse > --- > arch/arm64/include/asm/esr.h | 1 + > arch/arm64/mm/fault.c | 43 +++++++++++++++++++++++++++++++++---------- Acked-by: Catalin Marinas From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Thu, 23 Mar 2017 17:02:06 +0000 Subject: [PATCH V13 04/10] arm64: exception: handle Synchronous External Abort In-Reply-To: <1490136425-4324-5-git-send-email-tbaicar@codeaurora.org> References: <1490136425-4324-1-git-send-email-tbaicar@codeaurora.org> <1490136425-4324-5-git-send-email-tbaicar@codeaurora.org> Message-ID: <20170323170206.GA32309@e104818-lin.cambridge.arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > CC: Jonathan (Zhixiong) Zhang > Reviewed-by: James Morse > --- > arch/arm64/include/asm/esr.h | 1 + > arch/arm64/mm/fault.c | 43 +++++++++++++++++++++++++++++++++---------- Acked-by: Catalin Marinas