From patchwork Tue Oct 10 20:02:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Cheatham X-Patchwork-Id: 732031 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B54A329CEB; Tue, 10 Oct 2023 20:04:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="TwM9m69Y" Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2048.outbound.protection.outlook.com [40.107.92.48]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1A47D12E; Tue, 10 Oct 2023 13:04:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=SJBe18LS66bHYBs+60TbEBG/opK1LUIxsLXBTgyBPPmHgt6xWll9ioL4/r/DXUMoDj0jA3QnJ/E9VGFt6Em8s+y+8ASncC7nzpEgxJmeVVP6UjqgCeLlmRX8Il6IqV28/A1384BqCB8YskZvRIhatPPhnA1VL+lueCbWc8ZDiR75Cnfb/Lno1eibwaZQ97GFfh2na0DXehHn5f/ANeXp2y4xSwSZLAdzQqwPzeMhOkF9YAgGQ03/19zpF7Tosni4Z3ROuQlqwi6+G7EH7YPrpwOXOiH/H5a/+vIzPkLoFQHtkaKF+gKYw5TyNmQCskNZUzIy5qeCu8tDG1iwtzzrmA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=UWirr0iuG6mAxg2Xd3VxPkxEOsVowqCmylTmVWaSNvs=; b=eS3h3bhjt2JkyNHSRMmqvYPcR/wvPf1xJJhfebt6ILfXcNKN9MS9nyFl6tIzGTj9RfOXvEnAUavEW0hbiVdMHAi995/l9Vg0AA8FnCGbBCBu6bAL605tDDQX48iTs56l2uGmRiXmwC215Vnn/n13GhZa7MeLxlmUSKn9TZvVIh/hSPqSfhUKKVIxhSr1jjYYhWLgGxBnV+UTFRAOddRBN+54ulmUcwuLSquQNYQiAYVD5o52yguNayUa/pTiJyvZnxRoJUDZwjR4kL8DzxaWDOyL2eB89NQA+KuifBvAc1vlGme8cKKWSbT8kenqJUG4PpqN0/NZ3trputMRB+dubw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=UWirr0iuG6mAxg2Xd3VxPkxEOsVowqCmylTmVWaSNvs=; b=TwM9m69Yy1iKtymTX18bS9zhEEB2A69TUvWwbx3o/LSMqRfM3FWhbaM4pqC1gqC1pzVH9cGpGhWeQLvl5/vQd/wn+EMn1A5O0IEC0bXXxQNBf2pCC6S8RD1zZB+9YiaWcRnLCP1HVRSV1XxA+wL3LUsxHTdYp7yXzTl3JUhCEGk= Received: from CH2PR19CA0013.namprd19.prod.outlook.com (2603:10b6:610:4d::23) by MN0PR12MB6078.namprd12.prod.outlook.com (2603:10b6:208:3ca::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6838.39; Tue, 10 Oct 2023 20:04:06 +0000 Received: from DS1PEPF00017097.namprd05.prod.outlook.com (2603:10b6:610:4d:cafe::77) by CH2PR19CA0013.outlook.office365.com (2603:10b6:610:4d::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6863.38 via Frontend Transport; Tue, 10 Oct 2023 20:04:06 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by DS1PEPF00017097.mail.protection.outlook.com (10.167.18.101) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6838.22 via Frontend Transport; Tue, 10 Oct 2023 20:04:06 +0000 Received: from bcheatha-HP-EliteBook-845-G8-Notebook-PC.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Tue, 10 Oct 2023 15:04:05 -0500 From: Ben Cheatham To: , , , CC: , Subject: [PATCH v6 5/5] EINJ: Update EINJ documentation Date: Tue, 10 Oct 2023 15:02:54 -0500 Message-ID: <20231010200254.764273-6-Benjamin.Cheatham@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231010200254.764273-1-Benjamin.Cheatham@amd.com> References: <20231010200254.764273-1-Benjamin.Cheatham@amd.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF00017097:EE_|MN0PR12MB6078:EE_ X-MS-Office365-Filtering-Correlation-Id: 7144ffaa-674f-4956-033b-08dbc9cc0f11 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(4636009)(396003)(39860400002)(346002)(376002)(136003)(230922051799003)(451199024)(82310400011)(64100799003)(1800799009)(186009)(40470700004)(36840700001)(46966006)(40460700003)(1076003)(8676002)(6666004)(7696005)(70206006)(478600001)(2616005)(336012)(15650500001)(426003)(110136005)(54906003)(19627235002)(41300700001)(83380400001)(16526019)(8936002)(5660300002)(316002)(47076005)(70586007)(36860700001)(82740400003)(2906002)(86362001)(81166007)(36756003)(26005)(40480700001)(356005)(4326008)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Oct 2023 20:04:06.5404 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7144ffaa-674f-4956-033b-08dbc9cc0f11 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF00017097.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6078 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Update EINJ documentation with build requirements for CXL error types and how to inject CXL error types. Signed-off-by: Ben Cheatham --- Documentation/firmware-guide/acpi/apei/einj.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/firmware-guide/acpi/apei/einj.rst b/Documentation/firmware-guide/acpi/apei/einj.rst index d6b61d22f525..83afe3bac793 100644 --- a/Documentation/firmware-guide/acpi/apei/einj.rst +++ b/Documentation/firmware-guide/acpi/apei/einj.rst @@ -181,6 +181,18 @@ You should see something like this in dmesg:: [22715.834759] EDAC sbridge MC3: PROCESSOR 0:306e7 TIME 1422553404 SOCKET 0 APIC 0 [22716.616173] EDAC MC3: 1 CE memory read error on CPU_SrcID#0_Channel#0_DIMM#0 (channel:0 slot:0 page:0x12345 offset:0x0 grain:32 syndrome:0x0 - area:DRAM err_code:0001:0090 socket:0 channel_mask:1 rank:0) +CXL error types are supported from ACPI 6.5 onwards. These error types +are not available in the legacy interface at /sys/kernel/debug/apei/einj, +but are instead at /sys/kernel/debug/cxl/portX/dportY. Inside the dportY +directory are two files, einj_types and einj_inject. These files work the +same as the available_error_type and error_inject files (read the error +types from einj_types and write the type to inject to einj_inject). + +To use these error types one of (or both) ``CONFIG_CXL_ACPI`` or +``CONFIG_CXL_PORT`` must be reachable by the EINJ module; if +``CONFIG_ACPI_APEI_EINJ`` == y/m, then at least one of ``CONFIG_CXL_ACPI`` +or ``CONFIG_CXL_PORT`` must also be set to y/m. + Special notes for injection into SGX enclaves: There may be a separate BIOS setup option to enable SGX injection.