From patchwork Sat Sep 16 13:03:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shuai Xue X-Patchwork-Id: 723651 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C8A9CD37BB for ; Sat, 16 Sep 2023 13:04:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239269AbjIPNDw (ORCPT ); Sat, 16 Sep 2023 09:03:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233337AbjIPNDl (ORCPT ); Sat, 16 Sep 2023 09:03:41 -0400 Received: from out30-130.freemail.mail.aliyun.com (out30-130.freemail.mail.aliyun.com [115.124.30.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79287DD; Sat, 16 Sep 2023 06:03:34 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R131e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=ay29a033018046051; MF=xueshuai@linux.alibaba.com; NM=1; PH=DS; RN=22; SR=0; TI=SMTPD_---0VsA36wZ_1694869410; Received: from localhost.localdomain(mailfrom:xueshuai@linux.alibaba.com fp:SMTPD_---0VsA36wZ_1694869410) by smtp.aliyun-inc.com; Sat, 16 Sep 2023 21:03:31 +0800 From: Shuai Xue To: keescook@chromium.org, tony.luck@intel.com, gpiccoli@igalia.com, rafael@kernel.org, lenb@kernel.org, james.morse@arm.com, bp@alien8.de, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, ardb@kernel.org, robert.moore@intel.com Cc: linux-hardening@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, linux-efi@vger.kernel.org, acpica-devel@lists.linuxfoundation.org, xueshuai@linux.alibaba.com, baolin.wang@linux.alibaba.com Subject: [RFC PATCH 7/9] ACPI: APEI: ESRT: kick ghes_report_chain notifier to report serialized memory errors Date: Sat, 16 Sep 2023 21:03:14 +0800 Message-Id: <20230916130316.65815-8-xueshuai@linux.alibaba.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230916130316.65815-1-xueshuai@linux.alibaba.com> References: <20230916130316.65815-1-xueshuai@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Introduce a new pstore_record type, PSTORE_TYPE_CPER_MEM, so that serialized memory errors can be retrieved and saved as a file in pstore file system. While the serialized errors is retrieved from ERST backend, kick ghes_report_chain notifier. Signed-off-by: Shuai Xue --- drivers/acpi/apei/erst.c | 5 +++++ fs/pstore/platform.c | 1 + include/linux/pstore.h | 3 +++ 3 files changed, 9 insertions(+) diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index f789e3df73a9..665b8f93dab3 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -26,6 +26,7 @@ #include #include /* kvfree() */ #include +#include /* only define CREATE_TRACE_POINTS once */ #include @@ -1068,6 +1069,10 @@ static ssize_t erst_reader(struct pstore_record *record) else if (guid_equal(&rcd->sec_hdr.section_type, &CPER_SECTION_TYPE_MCE)) { trace_mce_record((struct mce *)rcd->data); record->type = PSTORE_TYPE_MCE; + } else if (guid_equal(&rcd->sec_hdr.section_type, &CPER_SEC_PLATFORM_MEM)) { + record->type = PSTORE_TYPE_CPER_MEM; + arch_apei_report_mem_error(0x2, (struct cper_sec_mem_err *)rcd->data); + atomic_notifier_call_chain(&ghes_report_chain, 0x2, rcd->data); } else record->type = PSTORE_TYPE_MAX; diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index e5bca9a004cc..4e63ac8be755 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -51,6 +51,7 @@ static const char * const pstore_type_names[] = { "powerpc-common", "pmsg", "powerpc-opal", + "cper-mem", }; static int pstore_new_entry; diff --git a/include/linux/pstore.h b/include/linux/pstore.h index ad44b3baf10e..d18ecaacd1b5 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -40,6 +40,9 @@ enum pstore_type_id { PSTORE_TYPE_PMSG = 7, PSTORE_TYPE_PPC_OPAL = 8, + /* APEI section */ + PSTORE_TYPE_CPER_MEM = 9, + /* End of the list */ PSTORE_TYPE_MAX };