From patchwork Tue Apr 19 01:43:37 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Ying" X-Patchwork-Id: 716791 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p3J1i7kB017216 for ; Tue, 19 Apr 2011 01:44:07 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751985Ab1DSBnw (ORCPT ); Mon, 18 Apr 2011 21:43:52 -0400 Received: from mga03.intel.com ([143.182.124.21]:27981 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753571Ab1DSBnr (ORCPT ); Mon, 18 Apr 2011 21:43:47 -0400 Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga101.ch.intel.com with ESMTP; 18 Apr 2011 18:43:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.64,236,1301900400"; d="scan'208";a="421595178" Received: from yhuang-dev.sh.intel.com ([10.239.13.107]) by azsmga001.ch.intel.com with ESMTP; 18 Apr 2011 18:43:45 -0700 From: Huang Ying To: Len Brown Cc: linux-kernel@vger.kernel.org, Andi Kleen , Tony Luck , ying.huang@intel.com, linux-acpi@vger.kernel.org Subject: [RFC 2/4] ACPI, APEI, GHES: Add hardware memory error recovery support Date: Tue, 19 Apr 2011 09:43:37 +0800 Message-Id: <1303177419-22466-2-git-send-email-ying.huang@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1303177419-22466-1-git-send-email-ying.huang@intel.com> References: <1303177419-22466-1-git-send-email-ying.huang@intel.com> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Tue, 19 Apr 2011 01:44:07 +0000 (UTC) memory_failure_queue() is called when recoverable memory errors are notified by firmware to do the recovery work. Signed-off-by: Huang Ying --- drivers/acpi/apei/Kconfig | 7 +++++++ drivers/acpi/apei/ghes.c | 24 +++++++++++++++++------- 2 files changed, 24 insertions(+), 7 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/drivers/acpi/apei/Kconfig +++ b/drivers/acpi/apei/Kconfig @@ -31,6 +31,13 @@ config ACPI_APEI_PCIEAER PCIe AER errors may be reported via APEI firmware first mode. Turn on this option to enable the corresponding support. +config ACPI_APEI_MEMORY_FAILURE + bool "APEI memory error recovering support" + depends on ACPI_APEI && MEMORY_FAILURE + help + Memory errors may be reported via APEI firmware first mode. + Turn on this option to enable the memory recovering support. + config ACPI_APEI_EINJ tristate "APEI Error INJection (EINJ)" depends on ACPI_APEI && DEBUG_FS --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -430,20 +430,30 @@ static void ghes_clear_estatus(struct gh static void ghes_do_proc(const struct acpi_hest_generic_status *estatus) { - int sev, processed = 0; + int sev, sec_sev; struct acpi_hest_generic_data *gdata; sev = ghes_severity(estatus->error_severity); apei_estatus_for_each_section(estatus, gdata) { -#ifdef CONFIG_X86_MCE + sec_sev = ghes_severity(gdata->error_severity); if (!uuid_le_cmp(*(uuid_le *)gdata->section_type, CPER_SEC_PLATFORM_MEM)) { - apei_mce_report_mem_error( - sev == GHES_SEV_CORRECTED, - (struct cper_sec_mem_err *)(gdata+1)); - processed = 1; - } + struct cper_sec_mem_err *mem_err; + mem_err = (struct cper_sec_mem_err *)(gdata+1); +#ifdef CONFIG_X86_MCE + apei_mce_report_mem_error(sev == GHES_SEV_CORRECTED, + mem_err); #endif +#ifdef CONFIG_ACPI_APEI_MEMORY_FAILURE + if (sev == GHES_SEV_RECOVERABLE && + sec_sev == GHES_SEV_RECOVERABLE && + mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS) { + unsigned long pfn; + pfn = mem_err->physical_addr >> PAGE_SHIFT; + memory_failure_queue(pfn, 0, 0); + } +#endif + } } }