From patchwork Fri May 19 20:32:10 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyler Baicar X-Patchwork-Id: 9738037 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 828046041F for ; Fri, 19 May 2017 20:33:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8E1E328582 for ; Fri, 19 May 2017 20:33:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 810A128587; Fri, 19 May 2017 20:33:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1CD1628582 for ; Fri, 19 May 2017 20:33:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756821AbdESUdK (ORCPT ); Fri, 19 May 2017 16:33:10 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:47290 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756756AbdESUdF (ORCPT ); Fri, 19 May 2017 16:33:05 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id E9FAE6115A; Fri, 19 May 2017 20:32:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1495225980; bh=nfbPFOi2iMlaPMQTo02YZMrEY5UFW1c1TB/jLYJ4XLw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lv9l9qXLZbzRvxFbYyWvIFoPHTDJsI62gJ0xLmBxZ2l6rDaX3d0urQUb+DZkfXURi ypn6wNjlBZvSj1V45Kh10AS/mm2/tjAwNIfjKHk5JDv+ZMiVZL2nRpI+ECrZ3e30sa ZrkD+8be56BGdIdfGhIfvACQJnfeCTh+t0K6yFwI= Received: from tbaicar-lnx.qualcomm.com (unknown [129.46.14.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: tbaicar@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 68C41611CA; Fri, 19 May 2017 20:32:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1495225976; bh=nfbPFOi2iMlaPMQTo02YZMrEY5UFW1c1TB/jLYJ4XLw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iDnXimEx5gY5ZJ95yDkQCy5sH6MYEr1EU7yyBe30QK4FD/Nu2V2wysd4S7SMKwgWq EPt+qIvaeUHKz6X/xasRPCT7nyLoeb+rXrtwpNA91owSvhqFVhGuf0eSS/QXcf3Vet IEnJU7ukyoc7pLm8CpXMX6fxZC5Cu6Kt+dNkWZSo= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 68C41611CA Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=tbaicar@codeaurora.org From: Tyler Baicar To: christoffer.dall@linaro.org, marc.zyngier@arm.com, pbonzini@redhat.com, rkrcmar@redhat.com, linux@armlinux.org.uk, catalin.marinas@arm.com, 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, 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, bp@alien8.de, rafael@kernel.org, tony.luck@intel.com, gengdongjiu@huawei.com, xiexiuqi@huawei.com Cc: Tyler Baicar Subject: [PATCH V17 08/11] efi: print unrecognized CPER section Date: Fri, 19 May 2017 14:32:10 -0600 Message-Id: <1495225933-4410-9-git-send-email-tbaicar@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1495225933-4410-1-git-send-email-tbaicar@codeaurora.org> References: <1495225933-4410-1-git-send-email-tbaicar@codeaurora.org> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP UEFI spec allows for non-standard section in Common Platform Error Record. This is defined in section N.2.3 of UEFI version 2.5. Currently if the CPER section's type (UUID) does not match with one of the section types that the kernel knows how to parse, the section is skipped. Therefore, user is not able to see such CPER data, for instance, error record of non-standard section. This change prints out the raw data in hex in the dmesg buffer so that non-standard sections are reported to the user. Non-standard section type errors should be reported to the user because these can include errors which are vendor specific. The data length is taken from Error Data length field of Generic Error Data Entry. The following is a sample output from dmesg: Hardware error from APEI Generic Hardware Error Source: 2 It has been corrected by h/w and requires no further action event severity: corrected time: precise 2017-03-15 20:37:35 Error 0, type: corrected section type: unknown, d2e2621c-f936-468d-0d84-15a4ed015c8b section length: 0x238 00000000: 4d415201 4d492031 453a4d45 435f4343 .RAM1 IMEM:ECC_C 00000010: 53515f45 44525f42 00000000 00000000 E_QSB_RD........ 00000020: 00000000 00000000 00000000 00000000 ................ 00000030: 00000000 00000000 01010000 01010000 ................ 00000040: 00000000 00000000 00000005 00000000 ................ 00000050: 01010000 00000000 00000001 00dddd00 ................ ... The raw data from the error can then be decoded using vendor specific tools. Signed-off-by: Tyler Baicar CC: Jonathan (Zhixiong) Zhang Reviewed-by: James Morse --- drivers/firmware/efi/cper.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c index eac0854..d5a5855 100644 --- a/drivers/firmware/efi/cper.c +++ b/drivers/firmware/efi/cper.c @@ -585,8 +585,15 @@ static void cper_print_tstamp(const char *pfx, else goto err_section_too_small; #endif - } else - printk("%s""section type: unknown, %pUl\n", newpfx, sec_type); + } else { + const void *err = acpi_hest_get_payload(gdata); + + printk("%ssection type: unknown, %pUl\n", newpfx, sec_type); + printk("%ssection length: %#x\n", newpfx, + gdata->error_data_length); + print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, 4, err, + gdata->error_data_length, true); + } return;