From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by 2002:a17:504:5f65:b0:1be9:327d:8ee3 with SMTP id gl5csp2042579njc; Mon, 24 Mar 2025 08:51:26 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCXgYWCrWbXVoO40KZ9lZn9qFslErKtVRoXE3GtNHeC2LftTqqOah15wQNgpPcQwH+DQDNSPl9U7jD5jIA==@linaro.org X-Google-Smtp-Source: AGHT+IHISKt+3QgRTe94My7t4iqh9nS1w2cTDvcA520+Zw98i4nUTxACBmt6gZ7ypUscFIrNQ7KK X-Received: by 2002:a05:6214:252f:b0:6e4:4484:f354 with SMTP id 6a1803df08f44-6eb3f34b659mr206064676d6.38.1742831486677; Mon, 24 Mar 2025 08:51:26 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1742831486; cv=pass; d=google.com; s=arc-20240605; b=g3MKLE0ceW+IWHAbYJbo49BV/Ex3Gfs2imhJKiNBR40tIAcV0yeFusP/Y7IwPTc9Z1 C8dnl7lxHYHfSqBKtCWzY1+Q2rJKDvRqZ3FwymX7CLyFR7c9+TiLS3Ey/iFn6l14oTia vO2LNl2vUDip5dJ1R0lOmaaFDVkXy4IcLe6ldBV92gtsEMYUURMf/oU1QMeOJub549Ae nvgdS5CylWLafWL6GEIRteDCB7GRjR+kU4j2qAHB+x88oGvoH22gBu9/2jN9c+haEMpi kv0LhFDJHzERD0QlDTLVyaFbf6vhcPwGhHiU/IF2Oa50Ssx/9OvBu4vNBl80E/LRVbPM G6Hg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=RRvEeXqTotxPTtciCPARw6pL6yBfJGWo0SpZ6KIdzTg=; fh=RhhhZfMcKN4RKYBTp0IcHZ1T/pjf9sKfasBJx6gGG+4=; b=g3u7mHzBtqBttt2NgI/4Qh6c0kX5UbiS8rjWYktu1GoIzPu3+68YASoCd/mvmUzt6x f9BgSV367+LnqyJASOzA+qnfiU4qo10NF0TAiRYhRCEwql6S95klru7/hgmq1HYVjMHq L3KrgwzydiXO9YCtr31Ov+df5SfUnLCTvUijPMX00+qLxB5BxyOT2nAC/8o8dCJegi0i Bcam2RaeZ7urQFjyagHxw7mR/jwbw2q3DesvT4fA/WgeqFA4TH1z9XH6svOEmxEaRlV0 6MkNHLIjn0PI2wzarzG27GV4iDnxdzVNgMelcY90qxICVbrNlU/rogWKsc6jtdFh9kLJ W15A==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=RiTIddtm; arc=pass (i=1 spf=pass spfdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org"; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id 6a1803df08f44-6eb3ef4978dsi75401666d6.30.2025.03.24.08.51.26 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 24 Mar 2025 08:51:26 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=RiTIddtm; arc=pass (i=1 spf=pass spfdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org"; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1twk4y-0007E5-Ef; Mon, 24 Mar 2025 11:51:08 -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 1twk4i-0007CC-1v; Mon, 24 Mar 2025 11:50:53 -0400 Received: from mail-bn8nam04on20631.outbound.protection.outlook.com ([2a01:111:f403:2408::631] helo=NAM04-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 1twk4f-0002Td-UA; Mon, 24 Mar 2025 11:50:51 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=TwgnWIV5VsxPGtNcmqVM63wa850azYuAbT0jGSw7B4jjwjVb41o1L5YV2WMLQNwGb7iUJQ3q3iRdEXpD+xMP0mb1GYrkOshz1D7OwySGMvMRD44ME7jn5HIvwX2hev4nDkj7TU/imZjTTZ8G26bjqr1xzhFHXwoINqaumQ6mpX43EEJK9gWiHFv2qAnTcjc5XhSiZAD7Gky26LrI7IWvIBrZjmiWsPMDp864+Cpf4ylwo8B0Q2SLJpU5f0Kcak0vCsdA5rtvc/Pa+NTQJMG5gAh1OIYCKiSkAGYvMejj+yx2g+SFV/BUafmhabyNS4uZ22NSrjErTnQAAm8lWoap6A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=RRvEeXqTotxPTtciCPARw6pL6yBfJGWo0SpZ6KIdzTg=; b=p4iQFs+0MPl2zyKYNlO9N0hph5mHMKo2fjtE+k+jv7Og1sHtSuoP8/agH7o5Mqme5Qq+Tbgu27UtM2HvWo4HTXW56pW6m111t0rAgPNTKx/2IDiYtIK6t30pmNtisVKtiERKrSOpFU5I55YaOk7yohJ7V29DQPWa1olG/y/GHT0pnYFQmD+Fyf64jPNthsb/ic5nmupMYZbMWKh9mDKP2nP5sdrgvCVuVmjwyfHT85qx7X2nGFB1doF4Ab9p5IATMf3bsaoSInZvNnYwHyzt7K67KxhpF+r+UQeGq2/C1WbVdmSUUQZ4jKcl1yH7FQFpSg+WGTy5NNYv/lGPSXjb8g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.118.232) smtp.rcpttodomain=huawei.com 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=RRvEeXqTotxPTtciCPARw6pL6yBfJGWo0SpZ6KIdzTg=; b=RiTIddtmWvXVzyL9HQWmt4yVSpO2qFTnv8KOEL5zrF45yur7Mjv502+dADt0kt6j/u7eECbYLWX9osyIP2KSCAcrSFmhkT1x5hxBRx4fLLtVHOa07i1VviIrOTvs0MYij/nGP6qZCBLuLnkPOIWvjZl+UEDp+5W8bRUWrOW1O4OKD8zhoCh3/JzYh916eoK2D+NGuaMv2dsdY8voucjWYmpImW9d/EjpPj1MQZjXjEolC1498q3bn6Tlr5wg2rnxQmrZ+aj8JHpcZ4wWsoGClid3LrUc1iNW2TjiL/AEWPa7FcgW2cq+9lf4wLCoW1qqmivGxs8KP6fBoOCHvfaP+g== Received: from MW4PR03CA0150.namprd03.prod.outlook.com (2603:10b6:303:8c::35) by LV3PR12MB9353.namprd12.prod.outlook.com (2603:10b6:408:21b::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8534.42; Mon, 24 Mar 2025 15:50:38 +0000 Received: from MWH0EPF000989E6.namprd02.prod.outlook.com (2603:10b6:303:8c:cafe::d5) by MW4PR03CA0150.outlook.office365.com (2603:10b6:303:8c::35) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8534.42 via Frontend Transport; Mon, 24 Mar 2025 15:50:38 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.118.232) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.118.232 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.118.232; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.118.232) by MWH0EPF000989E6.mail.protection.outlook.com (10.167.241.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8534.20 via Frontend Transport; Mon, 24 Mar 2025 15:50:37 +0000 Received: from drhqmail202.nvidia.com (10.126.190.181) by mail.nvidia.com (10.127.129.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Mon, 24 Mar 2025 08:50:21 -0700 Received: from drhqmail203.nvidia.com (10.126.190.182) 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 15.2.1544.14; Mon, 24 Mar 2025 08:50:21 -0700 Received: from nvidia.com (10.127.8.11) by mail.nvidia.com (10.126.190.182) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14 via Frontend Transport; Mon, 24 Mar 2025 08:50:20 -0700 Date: Mon, 24 Mar 2025 08:50:19 -0700 From: Nicolin Chen To: Shameerali Kolothum Thodi CC: Donald Dutile , "qemu-arm@nongnu.org" , "qemu-devel@nongnu.org" , "eric.auger@redhat.com" , "peter.maydell@linaro.org" , "jgg@nvidia.com" , "berrange@redhat.com" , "nathanc@nvidia.com" , "mochs@nvidia.com" , "smostafa@google.com" , Linuxarm , "Wangzhou (B)" , jiangkunkun , Jonathan Cameron , "zhangfei.gao@linaro.org" Subject: Re: [RFC PATCH v2 05/20] hw/arm/smmuv3-accel: Associate a pxb-pcie bus Message-ID: References: <20250311141045.66620-1-shameerali.kolothum.thodi@huawei.com> <20250311141045.66620-6-shameerali.kolothum.thodi@huawei.com> <3d1312b411f04121a3be90879a915982@huawei.com> <2f84490d309440a4a2ac56fd893ddab8@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <2f84490d309440a4a2ac56fd893ddab8@huawei.com> X-NV-OnPremToCloud: AnonymousSubmission X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000989E6:EE_|LV3PR12MB9353:EE_ X-MS-Office365-Filtering-Correlation-Id: 2627709b-0f03-4f82-376a-08dd6aeb9f52 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|376014|7416014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?76zvwsmtTgoyaRzDCX+knLHmHWcQC7pan2thFjVFC+46/9apEFabO4dQD3qh?= =?us-ascii?Q?gTS66jb/2JuoHwfVBDzFwaHOLeVAuzn9iNDhxYrrM1ZeKG4uByvFNEz2EQGc?= =?us-ascii?Q?N6AmPNN6xfgUnHGzlOr3x3Hjj8VEkAzmdEjsYc272/46l+leYEEO59WvADGg?= =?us-ascii?Q?IMGUp9wRI7JXBKrsp2d+OKMm6w1S8Yp0vXMBsbn4rVU3t/tXs7EuqeTjW6Wh?= =?us-ascii?Q?NX1Bsvmz4XyeKm/C7OEkR8tS06OZV4HDp92qKiu2sbAb039zam8eurjNVBqc?= =?us-ascii?Q?Maeu+Jiuj4jKWFJ6ET/2zQYfvRcMrUUZGpDV3vatFmRzqPf4fQzu1s91B/Gt?= =?us-ascii?Q?YGgNqMe13Ntex/5FGUDFSY6XqiUgJ0nYZSpruvv6NVkxYIDxFpnTrUkF5Xqz?= =?us-ascii?Q?7un8Qqlmqi5fV7sLyEX+pSUbvI47il8E5pXrMXU6qoS3TOKUOGALJSjPIbMQ?= =?us-ascii?Q?KP+lr4mpraJB0QFO0HGaoUwcGMkGxnXjs76hBR1Dmau+5FPNbcABv2UtlpQV?= =?us-ascii?Q?/m6NFErhC60aU2BTFeRswLKnwVhnu63b7sKT0Xuu2b2g8SMEQAs5Y6EvHb7X?= =?us-ascii?Q?ohZG9NWdpnRzX32CKK4DxsHpg9rExszTb5bWsG6+48dvO62MNlbOj5cJCvyo?= =?us-ascii?Q?oDTxZZVIl9tNQZ8O/ZS6bzDcweYV+Z1+ZDBzQCFTD/UCii5NcY6thaJDuyDN?= =?us-ascii?Q?BeUJRmYKX38dcKwkFnVMlfy66o6lIYerM95PGPZnvjchey6azG3JNE15+a9g?= =?us-ascii?Q?/fw0NVXwR9f7GrmIWei4A6sKX7Lmt2olETN2ZLToR0+H/4FwFojKrzWWbqia?= =?us-ascii?Q?1RGnqDpXdmYW8rcDiM5O33vUen/W1lik9AoQ8WZYfQ4WKKY7txcmkdPv6GuK?= =?us-ascii?Q?fjSEG0c7ZCEh1jzRo235oVDDBPseqItX7t220lQdyx+9TYzthVA81Ir0RBxf?= =?us-ascii?Q?ZMTViAE+qJvZ8ETJGm//E3pW1syEFknUeNHwwqbWMu00UVczrVMRHo1Vm3QZ?= =?us-ascii?Q?3LaAxahOgUl6iGil4hM3ph2EUuoJFfKJhAF5Zfm5IUyen1AYxYTuWLtmIYnO?= =?us-ascii?Q?mZMn7ilLVbDwWXezRYwbX29rH6gyclXMe0ynVbBjkd2gWfpOo0QvYRNBDv+o?= =?us-ascii?Q?Lu4uV8mobDhVpEWpehZZilcQfqArzFcXzTrXfMe6DWrccvEO2/2nQhXR0scZ?= =?us-ascii?Q?ZAnP07nV+mq5i8c3cKNJXlhJDVsMtXZTrh2D3PSgHbHTyMyhfZJwpeB75dbj?= =?us-ascii?Q?IcFojt5+JrIoxY+p+DWV+zuSpozije0WBTDOjD8oOpwQJqnmPZmp7e/MKnhD?= =?us-ascii?Q?QG85UE9C/iuaNVttv+7sd3jtqPefGtqbGkLP6b4xSdOkJIZ4gY1SeUTumTs6?= =?us-ascii?Q?gdg91cP/dZyG9BfiMv5jQ2mKa6JoS23goa/ONottZkuGEA/w6akepYDtdIfD?= =?us-ascii?Q?63LPVGWZor7T3imaalez+gMWzP70xuojtEWv5zlh/usOBEMxSX/OnFn1GjRr?= =?us-ascii?Q?Vxbg8qi5HUu91n4=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc7edge1.nvidia.com; CAT:NONE; SFS:(13230040)(376014)(7416014)(36860700013)(1800799024)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Mar 2025 15:50:37.8521 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2627709b-0f03-4f82-376a-08dd6aeb9f52 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.118.232]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000989E6.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9353 Received-SPF: permerror client-ip=2a01:111:f403:2408::631; envelope-from=nicolinc@nvidia.com; helo=NAM04-BN8-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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 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+alex.bennee=linaro.org@nongnu.org Sender: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org X-TUID: tVt2Upqtot9d On Mon, Mar 24, 2025 at 08:19:27AM +0000, Shameerali Kolothum Thodi wrote: > > If VM has an emulated device and a passthrough device: > > attach the emulated device to PCIE.0 <=> vSMMU bypass (or accel=off?) > > attach the passthrough device to pxb-pcie <=> vSMMU0 (accel=on) > > This can be other way around as well: > ie, > pass-through to pcie.0(accel=on) and emulated to any other pxb-pcie with accel = off. > > I think the way bus numbers are allocated in Qemu for pcie.0 and pxb-pcie allows > us to support this in IORT ID maps. That sounds fine. The reason why I picked pcie.0 for emulated devices, simply for keeping the design of pxb-pcie for multi- vSMMU cases. I think libvirt could still choose to keep it simple, although on the QEMU side we have to keep the flexibility. Thanks Nicolin