From nobody Mon Nov 25 00:48:05 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=nvidia.com); dmarc=pass(p=reject dis=none) header.from=nvidia.com ARC-Seal: i=2; a=rsa-sha256; t=1718745189; cv=pass; d=zohomail.com; s=zohoarc; b=G/c7QYYuiM7WL8KKqm4TKJjozXC9h7jIUl94o6+tf7NLY5lDGTLefnkf9whYOAWLDjBGlC0GUMkDgaIJm+p5kDuwi8Wicdx631YyYgCMckbhpHjrylkysxpHanF0C4hMXOkJHuWFWOUPrFvQ3ExlRnFnTelbKmwd19JtNGsOWAE= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1718745189; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Ywjd6T21QFOKkATL9nwNrz5YgBLy6uQzEusVFHkhC6E=; b=CnIWi7fpiFyiYV4yUGjrdpv7pesXWyCoFmx84UlXSl2T8AHDPwzjcqLxFpJdnKHNwutSZPzOlQEb5CZVdKtIakclR+PJyqyPWsFq5UOoviZpjRe5jlxO0vVD8CDLCCDe7QnoI5fxv/kYdnZAsVNuKjppJAB6Oy0rOIorbUKNiqk= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=nvidia.com); dmarc=pass header.from= (p=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1718745189370706.5512711470367; Tue, 18 Jun 2024 14:13:09 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sJg7W-0008Vq-5A; Tue, 18 Jun 2024 17:12:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sJg7Q-0008VQ-AC; Tue, 18 Jun 2024 17:11:56 -0400 Received: from mail-bn8nam11on2060c.outbound.protection.outlook.com ([2a01:111:f403:2414::60c] helo=NAM11-BN8-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sJg7N-0001ug-MY; Tue, 18 Jun 2024 17:11:56 -0400 Received: from DM6PR01CA0012.prod.exchangelabs.com (2603:10b6:5:296::17) by BL3PR12MB9049.namprd12.prod.outlook.com (2603:10b6:208:3b8::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.30; Tue, 18 Jun 2024 21:11:44 +0000 Received: from DS2PEPF00003445.namprd04.prod.outlook.com (2603:10b6:5:296:cafe::5d) by DM6PR01CA0012.outlook.office365.com (2603:10b6:5:296::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.30 via Frontend Transport; Tue, 18 Jun 2024 21:11:44 +0000 Received: from mail.nvidia.com (216.228.118.233) by DS2PEPF00003445.mail.protection.outlook.com (10.167.17.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.15 via Frontend Transport; Tue, 18 Jun 2024 21:11:44 +0000 Received: from drhqmail202.nvidia.com (10.126.190.181) by mail.nvidia.com (10.127.129.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Tue, 18 Jun 2024 14:11:23 -0700 Received: from drhqmail201.nvidia.com (10.126.190.180) by drhqmail202.nvidia.com (10.126.190.181) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Tue, 18 Jun 2024 14:11:23 -0700 Received: from Asurada-Nvidia.nvidia.com (10.127.8.13) by mail.nvidia.com (10.126.190.180) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Tue, 18 Jun 2024 14:11:22 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=NQu4aJb9cCygEkwWkhhX+bwpPOTbpm1KvH5tZAoVVVzenv3Q/LialtYAprJu+PrY3aqDH4xYDfQf+xVtXaZbytEsih7NtLR1MibXPBYeeSiBxas5ZVDwkgkC8onLG1peDnMWKWVD8xek0xriaJKqYlxEQQ/882ViTICYa4cDKBBXrG+MdCIF9R5LHmwTWWlCX7YDCbKshS1cQGtfFFBhIvZFqWIeLIzwx10SUml10W0B0FkKtXLihsIl2MEjoW2VhGRDgJidQbHNpEmhiLoDoA0iXo2JIFoTlk/j0MHFxmJAYc1+nOFlW0PtDBA16X1hAT5z1ScFRm44DBDc/ZO3MQ== 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=Ywjd6T21QFOKkATL9nwNrz5YgBLy6uQzEusVFHkhC6E=; b=QTqndtmM+felwMKaHWbqAdhUqRPzdlOipgwgFxPWovDTDx0oRL+m6OUBph+fQmvKxm5N6mM77tieA6aMeE4q/rXdPlNRnrJhIylsAPb1deX+S3sGSC47JXZN78aDOy1q/Byxck8cwI/5U9pvgljQFt3gJ8uBvzwcfxTeKngTJAM28A62TowIK2s9iTVR/Oc3zlvHY+R0LTMnXltgUbl11iqaN5BhS41wjBq35Fg4e43XZr8+nNWX+MIqbRK35mbIsV8cjKmsLUaczoXWt99AVz3gyXhj+J2AmyBnb9XO0KgWhfb/mQcFQe8R5tLzcnL4rEPqq2qtbeT8h3DcHpo/vA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.118.233) smtp.rcpttodomain=linaro.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Ywjd6T21QFOKkATL9nwNrz5YgBLy6uQzEusVFHkhC6E=; b=bDrOOwW4H8Pq34wm6ZqQo1S5uJjDZyD5McS1Tto3rnsU3bh8LWsxq/Q3TQCAqTLIuAgqbVdRhuR7Kd2ZwiCO0cPzJz3Xlva+Kkmmw8f+bEudRO60zwZRzUSmSR1q/ElF/xA5liKVp5m6jb8CV7Ti9/Pg0RQFQKUSsoZ3PrBGYUDzO+OlO42B81nw2BdR9vyviMDD+Ved0gCejm0K5uYRt9qr12Cm4NiTt16ed9f02+wT2J1HUs7O9ttKPAelCml1JQVxrsi7tSJ2yOX/7mnFGj7NFmbOBxCLo8+sF2FzU60QWhteYoQiSGh+lQVLRxhw+RdpPOlh4UedfzWRfJeZ2g== X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.118.233) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.118.233 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.118.233; helo=mail.nvidia.com; pr=C From: Nicolin Chen To: , , , , , CC: , Subject: [PATCH v3] hw/arm/virt-acpi-build: Fix id_count in build_iort_id_mapping Date: Tue, 18 Jun 2024 14:11:10 -0700 Message-ID: <20240618211110.922809-1-nicolinc@nvidia.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS2PEPF00003445:EE_|BL3PR12MB9049:EE_ X-MS-Office365-Filtering-Correlation-Id: 993f755f-a12e-4149-571b-08dc8fdb41cd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230037|1800799021|376011|82310400023|36860700010; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?kA3iuDD/bIFgT7ghXtNMwL+ab4gavtTzN6izNoLDaxqEvaHP4YFgcWVuancL?= =?us-ascii?Q?Ln+JpR1fPetPHElCky/eY4uyYfsIwhglmtu71sLAMQNb3qIzYS6NUMPokTUS?= =?us-ascii?Q?ArC4V2VdtEiwrYx9RW/dY13w1kXJa2liFe0Muovs9U18NDcFY3MqWO43CdvL?= =?us-ascii?Q?KKyx1my8UAfkz2n48FhnlX34/BWK7e1pWSbo57Jd9NZ6lE0iVFE/bjn4gnRy?= =?us-ascii?Q?HwRJ99WgRvzIL6M1O2HlwYWrqcpbSsMzOJxBieT6/BK8mHPBQf7uCLCNIHo2?= =?us-ascii?Q?y+qJm90vt0ZAb9V/pbtOniZzsyMN5d80cnXSo29mzr82Yzq0nzBIrgZXM0HC?= =?us-ascii?Q?OfFuSuD7Jk9s4nWwnUTq+IZ/Mt8htZhCZbm2WLVKSjkhCpdo0ZIpydh9b17E?= =?us-ascii?Q?2UiB8kEdQyA8Llu7/bZv3jSnrpq6m72b2U23zwHvYpR8IZUTs1xMRsPrV7gG?= =?us-ascii?Q?6o6rZunMzx0DKAC8BSpAs81kgPHWHaiEVnx3z0xP0uSEhCFz+i+d/1iltz+q?= =?us-ascii?Q?PFVBV8pQo5Php56a06aPBsXkTQDrLlAeIP0csV8vy4/fhr13PDbb1w2tMprQ?= =?us-ascii?Q?f8YCoLO9ysTqsxLN+V6TEWoLjm7wyTuUw8biuVeODaxtGPfgM+uma5K9xoEB?= =?us-ascii?Q?73Pfzg/Kn9/eCmrBktL4OrjOEVevTPhYICvd3U+L9MRfXJVtdWqTiIq9j3Z3?= =?us-ascii?Q?LIxb7vPUUP+PQjBboL+P3LySKp4e6bfiLfC5pIftzx8MYnby9XsAx/FRyOvq?= =?us-ascii?Q?Y0SeZszqJySLKaJvrjNTg9bT6JQuzVbeDPrNj7KPblfLjT0uyKlCyRLKC4WB?= =?us-ascii?Q?omL8p2cRQkowcp1CzETwvo4pToBkBOahHTDjHKI3oNhSHUea2UdfRB2W3pDc?= =?us-ascii?Q?J4CCIIcCWLgHaqCqRDDkJXzrjSeMmIJE9AhPDw+dqRpmRDqIf5PgCFsf/Lug?= =?us-ascii?Q?110/6zz2aCpfrglcKS33mSS8EKDtWn7STbyR9bTtN/Q4G0W3xsB9mtkAfvBD?= =?us-ascii?Q?8bXeyQtUqGMnrcRlmigLz4HZJrN4hZX6F3L4vqV1p6+S/IiQYDWp+XBKF4X6?= =?us-ascii?Q?GGEs6O6PHZ9MuQgsFn0GBC+kEJoVYTTDc8nUduZ3ZUeWtiRI4u8u6KkGBTWm?= =?us-ascii?Q?0anh2AbpJQam96TRSXgAOpwIEkjr1FXecTLNN6knTF7zU3GM/9KjpZRNsxcO?= =?us-ascii?Q?woZxYVkOlKZwnMbMAwY6ueEYXf5Big2Cs9+80sJYit8rhKy88hYGdndA9DxF?= =?us-ascii?Q?mHoxF9mkKBsmuLX2Ax5Q2ogzNhrHoCJTMWNiZ2dvMUCi5J7GOjTJGiBXJmlQ?= =?us-ascii?Q?DemR3GiuUOhhGQaIPqN3Uqko/AUV+ZLdEee2tP9kx6b8zIET1NF+uiqQpnnk?= =?us-ascii?Q?R3Wwoyt71pQSYwnoFM659piyBxeqaPPMWL/4lYsujfYhkcgb/Tz90CsS9EZi?= =?us-ascii?Q?uxJ80ntp+0g=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.233; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc7edge2.nvidia.com; CAT:NONE; SFS:(13230037)(1800799021)(376011)(82310400023)(36860700010); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jun 2024 21:11:44.2791 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 993f755f-a12e-4149-571b-08dc8fdb41cd X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.118.233]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DS2PEPF00003445.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB9049 Received-SPF: softfail client-ip=2a01:111:f403:2414::60c; envelope-from=nicolinc@nvidia.com; helo=NAM11-BN8-obe.outbound.protection.outlook.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.148, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @Nvidia.com) X-ZM-MESSAGEID: 1718745191515100003 Content-Type: text/plain; charset="utf-8" It's observed that Linux kernel booting with the VM reports a "conflicting mapping for input ID" FW_BUG. The IORT doc defines "Number of IDs" to be "the number of IDs in the range minus one", while virt-acpi-build.c simply stores the number of IDs in the id_count without the "minus one". Meanwhile, some of the callers pass in a 0xFFFF following the spec. So, this is a mismatch between the function and its callers. Fix build_iort_id_mapping() by internally subtracting one from the pass-in @id_count. Accordingly make sure that all existing callers pass in a value without the "minus one", i.e. change all 0xFFFFs to 0x10000s. Also, add a few lines of comments to highlight this change along with the referencing document for this build_iort_id_mapping(). Fixes: 42e0f050e3a5 ("hw/arm/virt-acpi-build: Add IORT support to bypass SM= MUv3") Suggested-by: Michael S. Tsirkin Signed-off-by: Nicolin Chen Reviewed-by: Eric Auger --- Changelog v3: * Added "-1" internally in build_iort_id_mapping() instead * Added comments to highlight this and referencing doc v2: https://lore.kernel.org/all/20240617223945.906996-1-nicolinc@nvidia.com/ * Moved "-1" to the same line of id_count calculation * Added "+1" to the next_range.input_base calculation v1: https://lore.kernel.org/all/20240613234802.828265-1-nicolinc@nvidia.com/ hw/arm/virt-acpi-build.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index c3ccfef026..ee6f56b410 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -209,12 +209,20 @@ static void acpi_dsdt_add_tpm(Aml *scope, VirtMachine= State *vms) #define ROOT_COMPLEX_ENTRY_SIZE 36 #define IORT_NODE_OFFSET 48 =20 +/* + * Input Output Remapping Table (IORT) -- Table 4 ID mapping format + * Conforms to "IO Remapping Table System Software on ARM Platforms", + * Document number: ARM DEN 0049E.b, Feb 2021 + * + * Note that @id_count will be internally subtracted by one, following + * the IORT spec. + */ static void build_iort_id_mapping(GArray *table_data, uint32_t input_base, uint32_t id_count, uint32_t out_ref) { - /* Table 4 ID mapping format */ build_append_int_noprefix(table_data, input_base, 4); /* Input base */ - build_append_int_noprefix(table_data, id_count, 4); /* Number of IDs */ + /* Number of IDs - The number of IDs in the range minus one */ + build_append_int_noprefix(table_data, id_count - 1, 4); build_append_int_noprefix(table_data, input_base, 4); /* Output base */ build_append_int_noprefix(table_data, out_ref, 4); /* Output Reference= */ /* Flags */ @@ -306,8 +314,8 @@ build_iort(GArray *table_data, BIOSLinker *linker, Virt= MachineState *vms) } =20 /* Append the last RC -> ITS ID mapping */ - if (next_range.input_base < 0xFFFF) { - next_range.id_count =3D 0xFFFF - next_range.input_base; + if (next_range.input_base < 0x10000) { + next_range.id_count =3D 0x10000 - next_range.input_base; g_array_append_val(its_idmaps, next_range); } =20 @@ -366,7 +374,7 @@ build_iort(GArray *table_data, BIOSLinker *linker, Virt= MachineState *vms) build_append_int_noprefix(table_data, 0, 4); =20 /* output IORT node is the ITS group node (the first node) */ - build_iort_id_mapping(table_data, 0, 0xFFFF, IORT_NODE_OFFSET); + build_iort_id_mapping(table_data, 0, 0x10000, IORT_NODE_OFFSET); } =20 /* Table 17 Root Complex Node */ @@ -419,7 +427,7 @@ build_iort(GArray *table_data, BIOSLinker *linker, Virt= MachineState *vms) } } else { /* output IORT node is the ITS group node (the first node) */ - build_iort_id_mapping(table_data, 0, 0xFFFF, IORT_NODE_OFFSET); + build_iort_id_mapping(table_data, 0, 0x10000, IORT_NODE_OFFSET); } =20 acpi_table_end(linker, &table); --=20 2.43.0