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Thu, 23 Jan 2025 00:40:49 -0800 Received: from rnnvmail201.nvidia.com (10.129.68.8) by rnnvmail203.nvidia.com (10.129.68.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Thu, 23 Jan 2025 00:40:49 -0800 Received: from nvidia.com (10.127.8.14) by mail.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4 via Frontend Transport; Thu, 23 Jan 2025 00:40:45 -0800 Date: Thu, 23 Jan 2025 00:40:43 -0800 From: Nicolin Chen To: Shameerali Kolothum Thodi , "zhenzhong.duan@intel.com" CC: Donald Dutile , "eric.auger@redhat.com" , Peter Maydell , "Jason Gunthorpe" , Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= , "qemu-arm@nongnu.org" , "qemu-devel@nongnu.org" , Linuxarm , "Wangzhou (B)" , jiangkunkun , Jonathan Cameron , "zhangfei.gao@linaro.org" Subject: Re: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable nested SMMUv3 Message-ID: References: <20241108125242.60136-1-shameerali.kolothum.thodi@huawei.com> <329445b2f68a47269292aefb34584375@huawei.com> <568014f5-25fd-439b-b70c-9cf50f31255b@redhat.com> <8fe09b60e6f04cc6aec99b72b46b2fb3@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; 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CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE; SFS:(13230040)(1800799024)(36860700013)(376014)(7416014)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Jan 2025 08:41:04.7728 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 302642d9-b1f9-46be-f41f-08dd3b89ac9e X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000EE3D.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYYPR12MB8653 Received-SPF: softfail client-ip=2a01:111:f403:2407::606; envelope-from=nicolinc@nvidia.com; helo=NAM02-BN1-obe.outbound.protection.outlook.com X-Spam_score_int: -50 X-Spam_score: -5.1 X-Spam_bar: ----- X-Spam_report: (-5.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.996, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, Jan 23, 2025 at 08:28:34AM +0000, Shameerali Kolothum Thodi wrote: > > -----Original Message----- > > From: Nicolin Chen > > I wonder if we can make some progress in Feb? If so, we can start > > to wrap up the iommufd uAPI patches for HWPT, which was a part of > > intel's series but never got sent since their emulated series is > > seemingly still pending? > > I think these are the 5 patches that we require from Intel pass-through series, > > vfio/iommufd: Implement [at|de]tach_hwpt handlers > vfio/iommufd: Implement HostIOMMUDeviceClass::realize_late() handler > HostIOMMUDevice: Introduce realize_late callback > vfio/iommufd: Add properties and handlers to TYPE_HOST_IOMMU_DEVICE_IOMMUFD > backends/iommufd: Add helpers for invalidating user-managed HWPT > Hi Zhenzhong, > > Just wondering what your plans are for the above patches. If it make sense and you > are fine with it, I think it is a good idea one of us can pick up those from that series > and sent out separately so that it can get some review and take it forward. +1 These uAPI/backend patches can be sent in a smaller series to get reviewed prior to the intel/arm series. It can merge with either of the intel/arm series that runs faster at the end of the day :) Nicolin