From nobody Mon Feb 9 19:06:29 2026 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=1769018659; cv=pass; d=zohomail.com; s=zohoarc; b=W3CFkciaWo4qhnTvyoLe6rUhcwMYnGCxPQGjpJGN7eDfbND7QQyeQrQYieZ9NeyqVGnCfMtfRy6eSh4mcH+mbn25cF89bK5LO2mvfyHPEJlPPoBopAHWGF90sW9flRBvbOu56wPoTA6wBDCC3/qZ3cSiX//Fv2voKcS4c8q+xl8= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1769018659; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=8yL6j07OD7LW7ujL5iH8wDlz5VP6M5D9aJ6r8EizqeE=; b=Ds1e8cfT2eTUGrGK6x8zgWT9rMOPl6Edh4le7GDvSOeyJRR/TdvHuj6eZ37TmjrxuV69D8kan1in6H8OUVuOn5Zn54dTtKL7zgpLIrls62HsonDn8P1efqOwnXuVj+B87MUeUmOy+lWwdqIN9HxO4OIqh9BCNb6R2+sz5jhg4Vk= 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 1769018659171986.3969157703461; Wed, 21 Jan 2026 10:04:19 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vicXE-0005KF-3R; Wed, 21 Jan 2026 13:02:32 -0500 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 1vicTi-0000Xn-A9; Wed, 21 Jan 2026 12:58:59 -0500 Received: from mail-centralusazlp170110009.outbound.protection.outlook.com ([2a01:111:f403:c111::9] helo=DM5PR21CU001.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 1vicTd-0002DZ-Dj; Wed, 21 Jan 2026 12:58:47 -0500 Received: from BL1PR13CA0162.namprd13.prod.outlook.com (2603:10b6:208:2bd::17) by DS5PPF78FC67EBA.namprd12.prod.outlook.com (2603:10b6:f:fc00::655) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9520.12; Wed, 21 Jan 2026 17:58:24 +0000 Received: from BN2PEPF000044AC.namprd04.prod.outlook.com (2603:10b6:208:2bd:cafe::c4) by BL1PR13CA0162.outlook.office365.com (2603:10b6:208:2bd::17) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9542.9 via Frontend Transport; Wed, 21 Jan 2026 17:58:24 +0000 Received: from mail.nvidia.com (216.228.117.161) by BN2PEPF000044AC.mail.protection.outlook.com (10.167.243.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9542.4 via Frontend Transport; Wed, 21 Jan 2026 17:58:24 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Wed, 21 Jan 2026 09:58:00 -0800 Received: from NV-2Y5XW94.nvidia.com (10.126.231.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Wed, 21 Jan 2026 09:57:55 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=v66/c9JKu5PJFpx1nK0F0bfiRpWeOi7yd4xP0676oSp18KiNamv+c6nJulnaS46aX3ttISHfVpE9QNZOkz1sr4oJB2bbuYVrouszYJ7kN1KYc78b5q1GRUDSmlVWGKvh+94y3h03qYIIt2M1GjjV2EBs0CQVH08iKQQCDMZUGNE2K/RziowYlWSoGQHkVtN3csoxJRmM3fj2fhjD1JM31ARhltSf0hhrJmaCjYW6Ua2aX29IP2bDFmlBhTESx2/PJrnIsyMzBNekRd4nAWN9rpDBOy/pe4juYeCH+d/rvNkkqH92/z8tJsxjGlLPZBSayoQvDe632mu+pjU2yIwUNA== 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=8yL6j07OD7LW7ujL5iH8wDlz5VP6M5D9aJ6r8EizqeE=; b=RuPXETQk9COHc7B6qw75c8r5JRTKdQIk4o1ThEk5yC+40kfpqaaAWddA2Rk64MVr8cxqf+pNG4TKZs5VUprbNW/jFvAk1NeqKgRGiPJzBSlTQyKDMBexCgiqUHZXFr0lYT6cy09Fld/8jqMGXXm9/LcxGvn8QCwRS9gW4iMVA3agHt8cRMfjOB3QLFbQDrwkry52c82MBCFD6om1+9uusndSc3yJTofBq9g2nbAxQhdfOp2Sz1PT5Ghi+U7XxFQ2fy337oFg9JoJaznbKI/kwnXbl3EGepT0Up7DADvP+qDK8ApbHQubAhVWJGupctppYkxkMjGdMHTO5vKyx1+XGA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=nongnu.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=8yL6j07OD7LW7ujL5iH8wDlz5VP6M5D9aJ6r8EizqeE=; b=XCpsPy0FZlGNIZ+oeENoodN7on4vmJ2KmMChAexOgq4/KBNIwaZ5hKP5FB0TS8ffuJRm5gzs4j31aPLGOTXyfE+M78d/HCFFFMnQD4HyWMBqvWCQlHc3qwXB6BYW6UX5B4g40bhR+8ZfuBEGrSB/pfeHDVEjkGBB64HnDi6xp1ZQVtkjMMdk3AkP4EBMSHrtgb6pKHplBjaxW3ikUDY+ueTqAI9Y58f2n4/5/dJHtlj+c6k+hpcIqucmEfC5lbUL+Ygq0wrExhtYcJpok5NROaL0e3jLAYdO/kGJUbtWORxqj5aRPmDppjw1/rAr/T4wGyga+LtvX0/0hkmfJ1AfLQ== X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) 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 (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 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C From: Shameer Kolothum To: , CC: , , , , , , , , , , , , , , , , , , Subject: [PATCH v8 33/37] backends/iommufd: Add get_pasid_info() callback Date: Wed, 21 Jan 2026 17:52:38 +0000 Message-ID: <20260121175248.87649-34-skolothumtho@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260121175248.87649-1-skolothumtho@nvidia.com> References: <20260121175248.87649-1-skolothumtho@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.126.231.35] X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN2PEPF000044AC:EE_|DS5PPF78FC67EBA:EE_ X-MS-Office365-Filtering-Correlation-Id: 25d3eaff-7416-4036-19b9-08de5916ac3e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|7416014|376014|82310400026|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?X9k6PoP+HOTr4X5t9NLTyMIRQ9f01xKyc9N0J4HbbTR97K/RuitVnOgWPDg6?= =?us-ascii?Q?DFLF6ROtytIAqVSzVtbnlPFgd7wDz/heY26gDI1f6c2Uy0urUmuW7It3s8kb?= =?us-ascii?Q?Oun08SQsCIX+nZ6cRd3T5z0/9pZd5/zHq2ZfGSuN/038G3WyF5MHNpvbsCHR?= =?us-ascii?Q?DaE7/9bTZOi4Fz05RjaN4WJVDCv19VL5jhMRqI6mo+/xBaxPvB3oBNh5iFCw?= =?us-ascii?Q?Cu1Gete10ADlrvkuAvCJ52pqbAHUAHTy+DqxXQTzHAc8nQzbOyPsO52tSGLX?= =?us-ascii?Q?YqRqhxtVLbMKHfyxvvyFA3sjIrdVoz6Ui/v4LImA85yg0Bw1I3fWIBJEkp5r?= =?us-ascii?Q?UPk9ZWZiertojgsWZMU9/+Kwvkm3clyCVWoL0E234wW4b7cIyv8hMtVg1+s5?= =?us-ascii?Q?+f3xTzQWgv4sMp+8SxflW5MBNveMIFt2hI1uimNx7I/Z/hazsJ5RUH6jruuI?= =?us-ascii?Q?DZ0uCPE+a4uAqxVGLOR48hLfn9/eTBvLDlWb3wk05MtPqV/xOpYrxDNqImjc?= =?us-ascii?Q?LlRcVgocvA6rWZ4p2Kb+fpE4i1begG1remXrq7Y7Mpw7AkYzH5WDxhxs21qd?= =?us-ascii?Q?Aam2jIjyMaIpyUEOBL/tY1KU3r3hjH/BzP/9cFJPTWn+/QWtYICWynti5RbR?= =?us-ascii?Q?UNyayUWtwtghadzwxBHlZI7cwELHbYVZb6DrTNysyfha+5jAvNnsw6vXGP6x?= =?us-ascii?Q?2BPgGFlb82vDm4w+TnnRaWq69g/mGMiR/EnOFbroMzkWQDaCuKXxHbcydueI?= =?us-ascii?Q?wfBgAOHJAPCfalx1GIBA4BwZWEU3FoJpc3kv9eT0iWp/08o09Jz3+0f0BHt7?= =?us-ascii?Q?frCTyOjCIC7uKaxjh/FQ+NjzY8c870cFhlTPp1MIr1uqOdqTeItpoQzn3J5H?= =?us-ascii?Q?T8HKCP5dsZDMdOOGwuAJ6Z4qq+KjvhWcXdPZoSsCzqjeiXUxRbFBcahjMUSG?= =?us-ascii?Q?Tw1xhThF2gBrHQUknejdLKDsimgOWqXPwOrRLrHlj8bYYxFj7r9Xg0Mwk4Df?= =?us-ascii?Q?s5R9gZd+1EEodozKv/aEmsvslZVjuZQLCZ1kXy9A4PnGW3OYvvqm+lRhr/OD?= =?us-ascii?Q?0MRpsGHsD/21b7KWsQ//1DYOEhaoX7wKbs6WwgT9v+p2FH96otw/j55SRymj?= =?us-ascii?Q?uSxN62qavGVUY3pfl3KdXxDn7jPtHHHarCqU5IOwp5PGYF/QUQ3ZC/qUJ+FU?= =?us-ascii?Q?JrLEBepKJjDI1nLmT6tKSSjkWb83pM0gP1Lg6JIvf/ohtKROZrL3pyVVC5+H?= =?us-ascii?Q?P+lJOmWxEaYouuf4ti9ujfalNY1zeAeezmtAOas0gvu0UJBPkMJL6QvU6op6?= =?us-ascii?Q?IcVEOxrx4DaYKquQTA9tvHPIeQSgplrb0fZJ8Yo5wYgqZKHKHT3mjNWh8tli?= =?us-ascii?Q?Fuf3j/OJm3PHnLoSBekhelBUhld3XBJ02SJealPn7+rH4rrYX7iQseFZSDwq?= =?us-ascii?Q?kT+BXtooEeeeEfJfiHtDk7lOwGzSjUpPVHYk/kqpBpACRdFHi2sO6uuvMN7b?= =?us-ascii?Q?4tsdHUOxhuv2zijXfD3poY3JMTQZtJwVqLMnGL1qtCcvdbMlaOAdhyyhZenQ?= =?us-ascii?Q?4iRCAKQ88CyiVLzzo8MQWOhtVCPMxTEpeyBAEaxh+KwI4l0RRA5xo+Qote+d?= =?us-ascii?Q?jgee45nm+nq6HCWfkZZEyfUjjT/TiiiYTRWHjWveHOlAP4e4kShIeQFc1g/B?= =?us-ascii?Q?vzmajQ=3D=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.161; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE; SFS:(13230040)(7416014)(376014)(82310400026)(1800799024)(36860700013); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jan 2026 17:58:24.5172 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 25d3eaff-7416-4036-19b9-08de5916ac3e 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: BN2PEPF000044AC.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS5PPF78FC67EBA Received-SPF: permerror client-ip=2a01:111:f403:c111::9; envelope-from=skolothumtho@nvidia.com; helo=DM5PR21CU001.outbound.protection.outlook.com X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.069, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FORGED_SPF_HELO=1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_NONE=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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: 1769018659818158500 Content-Type: text/plain; charset="utf-8" The get_pasid_info callback retrieves PASID capability information when the HostIOMMUDevice backend supports it. Currently, only the Linux IOMMUFD backend provides this information. This will be used by a subsequent patch to synthesize a PASID capability for vfio-pci devices behind a vIOMMU that supports PASID. Reviewed-by: Jonathan Cameron Reviewed-by: Eric Auger Tested-by: Eric Auger Tested-by: Zhangfei Gao Signed-off-by: Shameer Kolothum Reviewed-by: Nicolin Chen --- backends/iommufd.c | 17 +++++++++++++++++ include/system/host_iommu_device.h | 17 +++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/backends/iommufd.c b/backends/iommufd.c index 9b63d74083..13822df82f 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -539,11 +539,28 @@ static int hiod_iommufd_get_cap(HostIOMMUDevice *hiod= , int cap, Error **errp) } } =20 +static bool hiod_iommufd_get_pasid_info(HostIOMMUDevice *hiod, + PasidInfo *pasid_info) +{ + HostIOMMUDeviceCaps *caps =3D &hiod->caps; + + if (!caps->max_pasid_log2) { + return false; + } + + g_assert(pasid_info); + pasid_info->exec_perm =3D (caps->hw_caps & IOMMU_HW_CAP_PCI_PASID_EXEC= ); + pasid_info->priv_mod =3D (caps->hw_caps & IOMMU_HW_CAP_PCI_PASID_PRIV); + pasid_info->max_pasid_log2 =3D caps->max_pasid_log2; + return true; +} + static void hiod_iommufd_class_init(ObjectClass *oc, const void *data) { HostIOMMUDeviceClass *hioc =3D HOST_IOMMU_DEVICE_CLASS(oc); =20 hioc->get_cap =3D hiod_iommufd_get_cap; + hioc->get_pasid_info =3D hiod_iommufd_get_pasid_info; }; =20 static const TypeInfo types[] =3D { diff --git a/include/system/host_iommu_device.h b/include/system/host_iommu= _device.h index bfb2b60478..f000301583 100644 --- a/include/system/host_iommu_device.h +++ b/include/system/host_iommu_device.h @@ -59,6 +59,12 @@ struct HostIOMMUDevice { #endif }; =20 +typedef struct PasidInfo { + bool exec_perm; + bool priv_mod; + uint8_t max_pasid_log2; +} PasidInfo; + /** * struct HostIOMMUDeviceClass - The base class for all host IOMMU devices. * @@ -116,6 +122,17 @@ struct HostIOMMUDeviceClass { * @hiod: handle to the host IOMMU device */ uint64_t (*get_page_size_mask)(HostIOMMUDevice *hiod); + /** + * @get_pasid_info: Return the PASID information associated with the + * @hiod Host IOMMU device. + * + * @hiod: handle to the host IOMMU device + * + * @pasid_info: If success, returns the PASID related information. + * + * Returns: true on success, false on failure. + */ + bool (*get_pasid_info)(HostIOMMUDevice *hiod, PasidInfo *pasid_info); }; =20 /* --=20 2.43.0