From patchwork Mon Mar 6 20:45:01 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyler Baicar X-Patchwork-Id: 9607649 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 4EE236046A for ; Mon, 6 Mar 2017 20:51:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 612252684F for ; Mon, 6 Mar 2017 20:51:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5550E283C9; Mon, 6 Mar 2017 20:51:47 +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=unavailable 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 9502F2684F for ; Mon, 6 Mar 2017 20:51:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932501AbdCFUsw (ORCPT ); Mon, 6 Mar 2017 15:48:52 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:45556 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932447AbdCFUrr (ORCPT ); Mon, 6 Mar 2017 15:47:47 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id B3CB460AA4; Mon, 6 Mar 2017 20:45:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1488833222; bh=/L8LnB7ev2yoKmarUj8MAGOfcU9jLlN91G4ywsFeo0U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DDZ/hV+idLwtyYLzMk2dh+MKQ//4Q1nb/sbYtIO1shaPs3dC4rnYA/whE3Cr/sOS9 CyT2VAx+h15/GuGTgDQ9V1ekTVZXwpnRu6oMY3EOr0V0ylMcMZGgCIeQSf+1QSL1Tk 1OVR/7KBLJ64b5xNnZxTc8DaDyxXXLFTpOR/PWhQ= 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 1347F60D71; Mon, 6 Mar 2017 20:45:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1488833148; bh=/L8LnB7ev2yoKmarUj8MAGOfcU9jLlN91G4ywsFeo0U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MPEW5mlDohAuI9Hi12GtR6wOHTBCs4OgDu6M8urO9V73+7GWiGl7rhCu9u2oiVNeq owXPEyBPeESh7n0AxmtW0MGZgibUIPa+g2vSOp9aUqHlnzVXQL7/d/hzXmpI6D8KRv FUHWIVvoUY6NZitf4FkQkICkJynGac1ID3fhJx6s= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1347F60D71 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, 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 Cc: Tyler Baicar Subject: [PATCH V12 08/10] ras: acpi / apei: generate trace event for unrecognized CPER section Date: Mon, 6 Mar 2017 13:45:01 -0700 Message-Id: <1488833103-21082-9-git-send-email-tbaicar@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1488833103-21082-1-git-send-email-tbaicar@codeaurora.org> References: <1488833103-21082-1-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 any section type that the kernel knows how to parse, trace event is not generated for such section. And thus user is not able to know happening of such hardware error, including error record of non-standard section. This commit generates a trace event which contains raw error data for unrecognized CPER section. Signed-off-by: Tyler Baicar CC: Jonathan (Zhixiong) Zhang --- drivers/acpi/apei/ghes.c | 24 ++++++++++++++++++++++-- drivers/ras/ras.c | 1 + include/ras/ras_event.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 68 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index d6a3b9f..842c0cc 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -44,11 +44,13 @@ #include #include #include +#include #include #include #include #include +#include #include "apei-internal.h" @@ -453,11 +455,21 @@ static void ghes_do_proc(struct ghes *ghes, { int sev, sec_sev; struct acpi_hest_generic_data *gdata; + uuid_le sec_type; + uuid_le *fru_id = &NULL_UUID_LE; + char *fru_text = ""; sev = ghes_severity(estatus->error_severity); apei_estatus_for_each_section(estatus, gdata) { sec_sev = ghes_severity(gdata->error_severity); - if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, + sec_type = *(uuid_le *)gdata->section_type; + + if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID) + fru_id = (uuid_le *)gdata->fru_id; + if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT) + fru_text = gdata->fru_text; + + if (!uuid_le_cmp(sec_type, CPER_SEC_PLATFORM_MEM)) { struct cper_sec_mem_err *mem_err; @@ -468,7 +480,7 @@ static void ghes_do_proc(struct ghes *ghes, ghes_handle_memory_failure(gdata, sev); } #ifdef CONFIG_ACPI_APEI_PCIEAER - else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, + else if (!uuid_le_cmp(sec_type, CPER_SEC_PCIE)) { struct cper_sec_pcie *pcie_err; @@ -501,6 +513,14 @@ static void ghes_do_proc(struct ghes *ghes, } #endif +#ifdef CONFIG_RAS + else if (trace_unknown_sec_event_enabled()) { + void *unknown_err = acpi_hest_generic_data_payload(gdata); + trace_unknown_sec_event(&sec_type, + fru_id, fru_text, sec_sev, + unknown_err, gdata->error_data_length); + } +#endif } } diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c index b67dd36..fb2500b 100644 --- a/drivers/ras/ras.c +++ b/drivers/ras/ras.c @@ -27,3 +27,4 @@ static int __init ras_init(void) EXPORT_TRACEPOINT_SYMBOL_GPL(extlog_mem_event); #endif EXPORT_TRACEPOINT_SYMBOL_GPL(mc_event); +EXPORT_TRACEPOINT_SYMBOL_GPL(unknown_sec_event); diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h index 1791a12..5861b6f 100644 --- a/include/ras/ras_event.h +++ b/include/ras/ras_event.h @@ -162,6 +162,51 @@ ); /* + * Unknown Section Report + * + * This event is generated when hardware detected a hardware + * error event, which may be of non-standard section as defined + * in UEFI spec appendix "Common Platform Error Record", or may + * be of sections for which TRACE_EVENT is not defined. + * + */ +TRACE_EVENT(unknown_sec_event, + + TP_PROTO(const uuid_le *sec_type, + const uuid_le *fru_id, + const char *fru_text, + const u8 sev, + const u8 *err, + const u32 len), + + TP_ARGS(sec_type, fru_id, fru_text, sev, err, len), + + TP_STRUCT__entry( + __array(char, sec_type, 16) + __array(char, fru_id, 16) + __string(fru_text, fru_text) + __field(u8, sev) + __field(u32, len) + __dynamic_array(u8, buf, len) + ), + + TP_fast_assign( + memcpy(__entry->sec_type, sec_type, sizeof(uuid_le)); + memcpy(__entry->fru_id, fru_id, sizeof(uuid_le)); + __assign_str(fru_text, fru_text); + __entry->sev = sev; + __entry->len = len; + memcpy(__get_dynamic_array(buf), err, len); + ), + + TP_printk("severity: %d; sec type:%pU; FRU: %pU %s; data len:%d; raw data:%s", + __entry->sev, __entry->sec_type, + __entry->fru_id, __get_str(fru_text), + __entry->len, + __print_hex(__get_dynamic_array(buf), __entry->len)) +); + +/* * PCIe AER Trace event * * These events are generated when hardware detects a corrected or