From patchwork Mon Jan 24 02:47:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shuai Xue X-Patchwork-Id: 536640 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 BCACAC433EF for ; Mon, 24 Jan 2022 02:50:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240972AbiAXCug (ORCPT ); Sun, 23 Jan 2022 21:50:36 -0500 Received: from out30-57.freemail.mail.aliyun.com ([115.124.30.57]:53574 "EHLO out30-57.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240920AbiAXCsI (ORCPT ); Sun, 23 Jan 2022 21:48:08 -0500 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R881e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04423; MF=xueshuai@linux.alibaba.com; NM=1; PH=DS; RN=12; SR=0; TI=SMTPD_---0V2cQ9lX_1642992483; Received: from localhost.localdomain(mailfrom:xueshuai@linux.alibaba.com fp:SMTPD_---0V2cQ9lX_1642992483) by smtp.aliyun-inc.com(127.0.0.1); Mon, 24 Jan 2022 10:48:04 +0800 From: Shuai Xue To: bp@alien8.de, rric@kernel.org Cc: mchehab@kernel.org, tony.luck@intel.com, james.morse@arm.com, ardb@kernel.org, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, xueshuai@linux.alibaba.com, zhangliguang@linux.alibaba.com, zhuo.song@linux.alibaba.com Subject: [RESEND PATCH v3 1/2] efi/cper: add cper_mem_err_status_str to decode error description Date: Mon, 24 Jan 2022 10:47:58 +0800 Message-Id: <20220124024759.19176-2-xueshuai@linux.alibaba.com> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211210134019.28536-1-xueshuai@linux.alibaba.com> References: <20211210134019.28536-1-xueshuai@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org Introduce a new helper function cper_mem_err_status_str() which is used to decode the description of error status, and the cper_print_mem() will call it and report the details of error status. Signed-off-by: Shuai Xue --- drivers/firmware/efi/cper.c | 46 ++++++++++++++++++++++++++++++++++++- include/linux/cper.h | 1 + 2 files changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c index 6ec8edec6329..addafccecd84 100644 --- a/drivers/firmware/efi/cper.c +++ b/drivers/firmware/efi/cper.c @@ -211,6 +211,49 @@ const char *cper_mem_err_type_str(unsigned int etype) } EXPORT_SYMBOL_GPL(cper_mem_err_type_str); +const char *cper_mem_err_status_str(u64 status) +{ + switch ((status >> 8) & 0xff) { + case 1: + return "Error detected internal to the component"; + case 16: + return "Error detected in the bus"; + case 4: + return "Storage error in DRAM memory"; + case 5: + return "Storage error in TLB"; + case 6: + return "Storage error in cache"; + case 7: + return "Error in one or more functional units"; + case 8: + return "component failed self test"; + case 9: + return "Overflow or undervalue of internal queue"; + case 17: + return "Virtual address not found on IO-TLB or IO-PDIR"; + case 18: + return "Improper access error"; + case 19: + return "Access to a memory address which is not mapped to any component"; + case 20: + return "Loss of Lockstep"; + case 21: + return "Response not associated with a request"; + case 22: + return "Bus parity error - must also set the A, C, or D Bits"; + case 23: + return "Detection of a PATH_ERROR "; + case 25: + return "Bus operation timeout"; + case 26: + return "A read was issued to data that has been poisoned"; + default: + return "reserved"; + } +} +EXPORT_SYMBOL_GPL(cper_mem_err_status_str); + static int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg) { u32 len, n; @@ -334,7 +377,8 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem, return; } if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS) - printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status); + printk("%s""error_status: 0x%016llx, %s\n", pfx, mem->error_status, + cper_mem_err_status_str(mem->error_status)); if (mem->validation_bits & CPER_MEM_VALID_PA) printk("%s""physical_address: 0x%016llx\n", pfx, mem->physical_addr); diff --git a/include/linux/cper.h b/include/linux/cper.h index 6a511a1078ca..5b1dd27b317d 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -558,6 +558,7 @@ extern const char *const cper_proc_error_type_strs[4]; u64 cper_next_record_id(void); const char *cper_severity_str(unsigned int); const char *cper_mem_err_type_str(unsigned int); +const char *cper_mem_err_status_str(u64 status); void cper_print_bits(const char *prefix, unsigned int bits, const char * const strs[], unsigned int strs_size); void cper_mem_err_pack(const struct cper_sec_mem_err *,