From nobody Mon Jan 26 09:22:03 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1 dmarc=pass fromdomain=epam.com); dmarc=pass(p=quarantine dis=none) header.from=epam.com ARC-Seal: i=2; a=rsa-sha256; t=1768415414; cv=pass; d=zohomail.com; s=zohoarc; b=lx0Vo345xFuPSwxtMQZkMlfJeGghIDKotdaIp/O+Sj78soO/C9nrOIS4nTp+NMNePU6UIQ5X//4mOvJEU8Cgm32+muVKGsDJT3nnvzyFqLSAN6m4SH9+9d+PnZCaMUmQ7OTq23UKbZbQQ2iXCXjj+d7fWwtqUtL8iJMoHFyu9h8= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1768415414; h=Content-ID:Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=0ZOur9hcnIrC49t2nKFG1sBkxLPTcU8vBfzNYSma4Nw=; b=jThc/qgU/gPbeDqxWlHLHf/fWyyyT2RISbYQO859r/q5XPVDSpzH3zzDrvr4SO3gbuFRt0PSbD4bamDJtwnU8FcjnleovJBppvj1n8nhdp9g2j+hLL241ecMRQXkoekYJ9N9FUYcQ+9KqANFuxZJRkcCd6BzXSDN3xabuIr+PIM= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1 dmarc=pass fromdomain=epam.com); dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1768415414622822.5796207047008; Wed, 14 Jan 2026 10:30:14 -0800 (PST) Received: from list by lists.xenproject.org with outflank-mailman.1203673.1518739 (Exim 4.92) (envelope-from ) id 1vg5cw-00060H-Un; Wed, 14 Jan 2026 18:29:54 +0000 Received: by outflank-mailman (output) from mailman id 1203673.1518739; Wed, 14 Jan 2026 18:29:54 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1vg5cw-000606-RV; Wed, 14 Jan 2026 18:29:54 +0000 Received: by outflank-mailman (input) for mailman id 1203673; Wed, 14 Jan 2026 18:29:53 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1vg5cv-0005zq-5o for xen-devel@lists.xenproject.org; Wed, 14 Jan 2026 18:29:53 +0000 Received: from OSPPR02CU001.outbound.protection.outlook.com (mail-norwayeastazlp170130007.outbound.protection.outlook.com [2a01:111:f403:c20f::7]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 039bf376-f177-11f0-b15e-2bf370ae4941; Wed, 14 Jan 2026 19:29:51 +0100 (CET) Received: from PAVPR03MB8946.eurprd03.prod.outlook.com (2603:10a6:102:32e::21) by AS2PR03MB9465.eurprd03.prod.outlook.com (2603:10a6:20b:59e::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9520.4; Wed, 14 Jan 2026 18:29:48 +0000 Received: from PAVPR03MB8946.eurprd03.prod.outlook.com ([fe80::f12d:7394:bbe3:dfc]) by PAVPR03MB8946.eurprd03.prod.outlook.com ([fe80::f12d:7394:bbe3:dfc%5]) with mapi id 15.20.9520.005; Wed, 14 Jan 2026 18:29:48 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 039bf376-f177-11f0-b15e-2bf370ae4941 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=L8fXhzxNP0d2MzduSM+KJPPnnJo6PyWv0onJd8yvQpRog2WJe76T9qKVmoCiKc95tsLzYwARUn7E+O5WOQn2l/6tZ8ffi8zUSgn7bhctMs8Nec6svTEJcg3bqrpaMMH99QEaw4aR0H0joTue+p2sJEot7+Io3GivAdTmnKcP0GOhGoeFLbWpOkPVELA1WmAI1dNiJD9xnop29rlkGlHvspkZP7e5wucxuRt9yCuXkqCIhr9cKeVAwNNuWBBMV7NklvhY0+zPmeK35J9zX4l0SaOM2Eb5CuPCVarUn7q2jVqLp7nGZ8CPMHpBNtbQXyPft1kTracL3Kew1ibhVs27dg== 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=0ZOur9hcnIrC49t2nKFG1sBkxLPTcU8vBfzNYSma4Nw=; b=v5hXRKmJTu7ls9U7cuVc8rp1UjonOz4dIc3fBpbGn4gPUh/ooBabSgQztW+NWWGCIsX+DgdgcNojRz0jmnJqCzeC+Y+gdZeojvpU0HHSNULRkNqeS76BGxOrzmTndtci1O6LpF28Yd0QCuLLpsh3V8fBpDlx/hOVQpicttoscaiv2g5X8eaiXA8B08N+goJlM7pB4IKdASK1oalbKjQXC7jcbAyK3orcSuESu82wYawy1A6MsGQQBLfxSVEfhZm76UhkBtd7OZ+hup7pd0liVQT2Pn7N2qKrLqEud8+m8eP+gTvmNY2Hg+IuXX/BL47xpooteB74m0Jxj4Irt3dO9w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=epam.com; dmarc=pass action=none header.from=epam.com; dkim=pass header.d=epam.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=epam.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=0ZOur9hcnIrC49t2nKFG1sBkxLPTcU8vBfzNYSma4Nw=; b=lD566+Y7msbsvWYlUL5iVU81NWKn29EBC7BoJkeo+OoR84MFtmIrTJxTJ4bRqHpkih2m1Cg2r+Zi9UO1CCiqDgGI87+vIb7oD4EprOj0HIoRApuLynkH9OjnCzRTNDb2X8LNKa+j+FLj5afTZmB4VoueuPLYfYvjG3m9yt8vNeMPZIV6Q1FQysJhkzTGM4/3XTb5DbJJNw0fAvi21EzhE3Y1WzUHkfW8gMqTDMueAE1oddtRG/HsNcSAOq8LW6tjn5vmGr5lfrG0pugNYR6pqQ6058u9yNtlzVnfa6mQwqtkOdIrtNaGIglgpG9lrv9R9/tVj63lrREceV+E22721g== From: Oleksii Moisieiev To: "xen-devel@lists.xenproject.org" CC: Andrew Cooper , Anthony PERARD , Bertrand Marquis , Jan Beulich , Juergen Gross , Julien Grall , Michal Orzel , Oleksii Moisieiev , =?utf-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= , Stefano Stabellini , Volodymyr Babchuk , Grygorii Strashko Subject: [PATCH v7 1/5] xen/domctl: extend XEN_DOMCTL_assign_device to handle not only iommu Thread-Topic: [PATCH v7 1/5] xen/domctl: extend XEN_DOMCTL_assign_device to handle not only iommu Thread-Index: AQHchYPDuN/1Zdz2qUyC6pz/50rn/A== Date: Wed, 14 Jan 2026 18:29:48 +0000 Message-ID: <837eab835a75e7f668c5a49074991b2fcba56156.1768415200.git.oleksii_moisieiev@epam.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=epam.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: PAVPR03MB8946:EE_|AS2PR03MB9465:EE_ x-ms-office365-filtering-correlation-id: 39588112-3f45-42f5-203b-08de539ae615 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0;ARA:13230040|1800799024|366016|7416014|376014|38070700021; x-microsoft-antispam-message-info: =?utf-8?B?RHdnNm93OXIzNlF4eFZBWVRwQnFtMGRFUEcxTDV4MUVkVXVEOVJFbWZBYWE2?= =?utf-8?B?Qkt4N2JlSkZNc0JPRkEwalMrZlEzcDV1OWx1OGVzbU9TWllyR1d1RGwwb1Q0?= =?utf-8?B?OVd2bjIrcEFRZnZ5SW9vV0RMREMxamhETTh5V3dXVnowbGNoSVBDT00wVkQz?= =?utf-8?B?cXM3SEtuNTNISnhrZUhYbENkUUVTMFc4T2dQVnc5MzBzMk96eFp0VTJnK2ZF?= =?utf-8?B?d1YzQ1lNZHlTQ1pUSVNlU1dqSEtmTkQvaVRpUGdNWUtKVjVPS3BaR2Q1Z082?= =?utf-8?B?cXNhSXM0M2JGU1N0M3NpRHJtM2swa3ZYY1MxSy9abm1LN2pOMThXUWU0NjNi?= =?utf-8?B?U2d5ck94QXkxcjRxM05COUpMN3AyeWIrcDBsYXNjTGJZQkdsV0wvaktFTVhX?= =?utf-8?B?YnN0c2dsS2M2QmxJL0JHYnlaK1kraU1rOG1ucHVvSXZXcldOalFGLzBMOEFG?= =?utf-8?B?VzErTDZQbnFtRHR2d3dLU0xiTWFnckZXdG93OGpVSkJXa2dWMGpUeDhCUFU4?= =?utf-8?B?UE9Ua2pMTUlQOXhSbTdrUGtXdE1vNkJYWCsxUXBTNDZmYW1GREdRSXkzR0xa?= =?utf-8?B?dzRITU5PaFIrM05hZ0I3RFVUdkNCYjUrRVJ0d3VtOUNpQWg4b056QTI0cXl1?= =?utf-8?B?MjI5MlBqQkdhTFJFUGlPdGVzWEpNRmhjWEVmTkYvaDJlRVdPZ2FYcUkwWXZ1?= =?utf-8?B?Q1JzUWlKTldBdkEyYWg0UFFMRWYzTENneC9QQysvRjZyRnJudXFOYjJUNXVF?= =?utf-8?B?L1lMRjNMK1UwVVplUm4rcFEyRnN4alRlVlA1N1RZUjQrK2RsZEc1eUFHeEQ4?= =?utf-8?B?bXd2OCtla3VvVEJNN0pibnlubHBjcndJeGRvdHRsNXFmOHJ5bzRUTjNIaGQ5?= =?utf-8?B?MmQzS1JndytVREJmckVCVHh4Qi95TFI1L3hDZ09TYmZlWXBxVEh2dnVNQ2ZL?= =?utf-8?B?K25sUnp0OFJTOFBVSzVGYnQxdUhuQXU2eWFjeXhyaVh2WUFDRFJtcUp2Snhm?= =?utf-8?B?elVCbktTcCtObVRqb0JuNTl3UXJLM0NQUmJ5bEZKcEREQkxYd3hCb0RySjVU?= =?utf-8?B?bGFGS3l4aXpKd0l1YUZ3Z05uRXhVWVBWdlZLVDM3QVQ0L2hEMkVSclFBeUZp?= =?utf-8?B?TDN0S2k0Q3RUVytTTld0NGY2a0JpNFhjZS91YzJ1YXNVNmdaMWFlM0dOakRa?= =?utf-8?B?dE9zak9jY3NtMEJYRGVscktTUWNtWVk5MVg2U2pZZGFxaTNOTkRSL0E3cE52?= =?utf-8?B?N1E2dUhkdzlFMW80RHZDbWNNcm9XSG5yNDJWWVNSMFd4VkZGci9XUERTVVBv?= =?utf-8?B?clNDNm5YV3lGdnRZbFI2NUN0bGliNi9HZG1VNzIrbkRmQkVYWUV3NjFpVWU1?= =?utf-8?B?NWcyb0RzaFB1M0xoNWp3NmsyakVPeE1qUWk4czdvVmxHZmJYQTgyL2FwcmRm?= =?utf-8?B?dUJhZ00yd2I4MjVjYTZTQVNVMG5OYWpsMUtuTjlaTVNhVGtaL240T3cxY2hr?= =?utf-8?B?ZjF3TVZscFZhaUIyUHZRc1UxNno3dVpobnRqdE41bmYzT00yUlZ2TUNVcEpJ?= =?utf-8?B?Y1JHMlZhS2NkcXV3Wk11dHlFeXY3SU5QaXVGY1Jhay9sdWdrTERuZStQOW8v?= =?utf-8?B?QjE1ejlRbVM2TGhJMytlUi9uT2NSWEdlVmtRanlMMmRCbm11V0ZMZklTNXY5?= =?utf-8?B?S1RmZjVQYUxjRHhwZXZkS3Y5U2RXVE5SNkxCc2ZON2lEcjZyTDZ0OCtwUnJ5?= =?utf-8?B?S1ZXaitOay9tYS9lak9vckx4NExHNHc2VFFxM1owR3lmak9VSENWSGI3a1FE?= =?utf-8?B?S01mZW5KQktvVHgxVnhpMmhyTVRJNEF6YStEaFpuWTNjdmYvZVdHMHFBTnI4?= =?utf-8?B?WEIwZnVSNVRjSWlzS0RIUGNKZDBoaEh2LzROdTUyTFRZNVFnREltdklpUjBP?= =?utf-8?B?NHRXK09zL2kyN2hVd1hCMkxjWUh1OWNBSC9RSG94VEFsUU1QZXFOc0JTSnhY?= =?utf-8?B?VjE0cENBY3dWSUYxQ1hrOWVMbjdyODEzelBzL2NCcEUrUjFCWnBVTWIvRUtW?= =?utf-8?B?Z0lhd0JsM2g3YlRiOHF1SlBOYmk0MUdFRnpSbktkdDZnbk5hQmdqYk5lYmlY?= =?utf-8?B?eUY3cUVvS3pqNHl3allmekRFa2xHcndMdVNGMzdEdytuUkFhZVcrUjdtazRu?= =?utf-8?Q?FJDx7d5Y5jBwzkYUJfYohF8=3D?= x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAVPR03MB8946.eurprd03.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(7416014)(376014)(38070700021);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?NStRQ3FYSUJvVUpHQWtudWpLQjZJcXowRmRJVDkxT1NnNG1kMkRQMW9BekZa?= =?utf-8?B?d0pYS3BWdERRVUZuWHNPYTFXUnV6Tm5SMHdBbGZHbWdYYmdUQjhGM3hBV29v?= =?utf-8?B?NDl5bkRXY1I0U3dKQnFPalllaEI5VnIxSHlQMnp5WXJJOU5vbnA3eFlBbEE4?= =?utf-8?B?M0ZtL2RsT1RrMzZvZ29SRXBocjZVNnlEWXZHV0NRdjdMaU5KMEhXZVYwdlUr?= =?utf-8?B?MTdXeWk0K1BScitTRzhmelVUQ0VFMVNIeXJjaXhPYTRaTHIzem1sVjJzSjY1?= =?utf-8?B?Sm04UlE1anJaTTN0UU5VcXIvejhCK3NzUk9uOHlKVlYrZ2dDL0g4SXBQeW5w?= =?utf-8?B?VjVjNjBLbklvcW0wb3lRTzg4dk84aHAyQUV1WnVvMDY1Z1ExU2xkVU4xMzUy?= =?utf-8?B?Um9jNE9IQjVMZ0Z4cDN6TEtYbGwzVWhhUU0rZHZJOG92UDV3Q1o2ZWJXY2No?= =?utf-8?B?N2pSZ2xtT0JVYytIaEw4Vk5SUnRnUlNRVTJKVTVkdUlpaFhTYUxuQTZZakZk?= =?utf-8?B?U1lTR0g2YUJxaGFES2xjMUhLVlY0Zk45K041YTNlSzdoY3ZJM0FpdVA4NjRM?= =?utf-8?B?c1drVXlmWFN0eHB2czlWVExadG5hV1ZDUkdHcVBKRUFMdVU2MnlJWXBGc05C?= =?utf-8?B?WENLK0RYL0xzdXVjZU1nNVFrcVJJdzZXSnUyQ3pnbDFDbFZMZmVzQlNHYkIx?= =?utf-8?B?UEpoaTFEMDVGQXdpU3JRUzZkcGhWR2FvOHpJNi94WDZ0a09BME92YUZ5ZDRE?= =?utf-8?B?dkhDQjVDRkNzR3lXMXNCZ0w4cUVJNDBqcStreHZVdzZTQU8xaVRtOVU1bXRG?= =?utf-8?B?MGVHNzQ4eG40UTc5OTUzUjR1anBHdk9RSnNBOThlOUpTOVZGcndMTkQwUjdu?= =?utf-8?B?L2w3MnpHbzkxbDRER3c2eDBpVmUzNmhTNEY3andCcmFUQk8wRDBtQ0RLdDJv?= =?utf-8?B?TlE4TS9kd3JRMXBJUjBMSzhMV3JuL0x3SVROWHZ0UWROdW1RcVoxS1ZoZnY4?= =?utf-8?B?YzF4MTZhMDZpSTZWNFZGR1RUZTBlYkk4KzB6bXVEUm92QUoxa2FKaE53aSta?= =?utf-8?B?OVZ3QklESFcyS1ZUVlBqVS91ckpqS3lwME43eDZ4QnpaWFFLZEp2a2ljOWw5?= =?utf-8?B?a3pWbVRONS9ZTlFkcUlsc3RyUkhDYlNtWGJsYjQ1Yk1JUkU1NTNzcXl0VTdT?= =?utf-8?B?K3B6dEs3ZVRhKzk5YW1UTldEM294dm02U1ZTOUdtaHRON2R6dUxxS0dpZkF0?= =?utf-8?B?Yk55V2FYNG9wTS9VeU5laHNPMktrQ2tsNU05bW4xOFhpSmpLajNnUFlrQmhu?= =?utf-8?B?alpHNC9TUHFkVlB1SHN2WmRtS2hvVTdoWlNlQ28xaVpkS0JsTEIvMEN3cEpI?= =?utf-8?B?ek5kVlFCR2J0ZVBlN2t3RFpzaG95RzZIOTJQWHE5d1lCODFYTlkzVnQwU21l?= =?utf-8?B?UmdweGtSWHg3TlpmTGJJS3pDK2dIS3Q4N21xMnFtaWNmT1BXOFlyZHkwSW5V?= =?utf-8?B?UWdPZ2xZZnNXVERRbW9VQit0VVRDZ2l2Z044elJnVk5IeEhPdmkvMEIyOGpY?= =?utf-8?B?YjNNcC9DMkRtVUxzN3JwNEg5NHgzQlkvZWdZQTcxdW1mTERKdXdpV1k0NmhK?= =?utf-8?B?c1ZRc1pvbDhKRlR4cGE3RlFtV1ora2QzUHR1c3gxbVBXbUZJYXJCRmdYS2hM?= =?utf-8?B?UGtCWUQxa25SN0l6YmxPOHFRRGE1U3ZMclZNVDFNZ04rQzFCTXBLWmFHbHdz?= =?utf-8?B?MjMvcElyV2lCby9uZml3NDJoWE4weHBWdWxZbHVlb21TejZIQUVXUHZydU0x?= =?utf-8?B?M0oyOTRQc0tPcUE1QVdXUEQ3c3BxR0NyRFBKZjJ3TCtGbGJwV00zUjZZdzhP?= =?utf-8?B?MXBvVlhTTzVkTDJSeUJzYVkwdHJ1WmlvdWNxOURaWUJ0VUFKWEtYZ005TEo1?= =?utf-8?B?Y0RhUXZSdjRBMWhpOHlqV003ajFUVnp3Rmlma2VVM2VHMDVWTkhkSEdUVHpK?= =?utf-8?B?aWVWTS9yYUdnTDE4YjdJUTlTRi9jeTd1clQ2RG5Cb2FVdFFMaXJBTUtMQTZq?= =?utf-8?B?a3BEbllCVWozZTIrYndUdnkwMFVhUWhJZmYxNHZ2bDZYY29TV3hIcm9PeGhU?= =?utf-8?B?eFRNM1RHbnNTYXdZT3NlYVdUNWNVN3J4VXNqMFZ0S1c2ZHY4bUh5N2MrZU92?= =?utf-8?B?aHNTMitNc0tOSGVoOStNVDM3R0VvTFhYZ1ArMENUN1NPRWtVcDRKU2M4UFBX?= =?utf-8?B?dzdpYU1vQ2JsOElPdFQyRGhvdUxyMGtEQzJ2dUhMRExtTnBzQkpMZFJjaVpV?= =?utf-8?B?MzdaQ1piTkhYdXpzVHJtaWtTRGVqSnU3N29BL3RFOHl4cVZZZExsOGNXRnFS?= =?utf-8?Q?sS0lz7Rtidal8Oa8=3D?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: epam.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PAVPR03MB8946.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 39588112-3f45-42f5-203b-08de539ae615 X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Jan 2026 18:29:48.1610 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b41b72d0-4e9f-4c26-8a69-f949f367c91d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: ZxGB9NnfNXFmWw665V2+3GCQxdgHmrPaok1/Iuqy/rNIFJvCSmEP5AKEsSEF1PyPZPy2Aix5Yb3+fyrw/wnvuy311dC7SfF+BDt7sGQ1jVw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS2PR03MB9465 X-ZohoMail-DKIM: pass (identity @epam.com) X-ZM-MESSAGEID: 1768415434087158500 From: Grygorii Strashko Add chained handling of assigned DT devices to support access-controller functionality through SCI framework, so a DT device assign request can be passed to firmware for processing and enabling VM access to the requested device (for example, device power management through SCMI). The SCI access-controller DT device processing is called before the IOMMU path. It runs for any DT-described device (protected or not, and even when the IOMMU is disabled). The IOMMU path remains unchanged for PCI devices; only the DT path is relaxed to permit non-IOMMU devices. This lets xl.cfg:"dtdev" list both IOMMU-protected and non-protected DT devices: dtdev =3D [ "/soc/video@e6ef0000", <- IOMMU protected device "/soc/i2c@e6508000", <- not IOMMU protected device ] The change is done in two parts: 1) call sci_do_domctl() in do_domctl() before IOMMU processing and propagate its error if it fails while the IOMMU path succeeds (unhandled cases return -ENXIO and are ignored); 2) update iommu_do_dt_domctl() to check for dt_device_is_protected() and not fail if DT device is not protected by IOMMU. iommu_do_pci_domctl doesn't need to be updated because iommu_do_domctl first tries iommu_do_pci_domctl (when CONFIG_HAS_PCI) and falls back to iommu_do_dt_domctl only if PCI returns -ENODEV. The new dt_device_is_protected() bypass in iommu_do_dt_domctl only applies to DT-described devices; SCI parameters are carried via DT nodes. PCI devices handled by iommu_do_pci_domctl do not carry DT/SCI metadata in this path, so there is no notion of =E2=80=9CSCI parameters on a non-IOMMU-protected PCI device=E2=80=9D for it to interpret or to skip. The PCI path should continue to report errors if assignment cannot be performed by the IOMMU layer. So we should leave iommu_do_pci_domctl unchanged; the SCI/DT-specific relaxations belong only in the DT path. Also SCI handling only exists when DT is present. Signed-off-by: Grygorii Strashko Signed-off-by: Oleksii Moisieiev --- Changes in v7: - update domctl to build on both Arm and x86 platforms - move ret1 declaration to the top of the function as required by code style Changes in v6: - change iommu_do_domctl and sci_do_domctl command order and call sci_do_domctl first which will produce cleaner code path. Also dropped changing return code when iommu was disabled in iommu_do_domctl. Changes in v5: - return -EINVAL if mediator without assign_dt_device was provided - invert return code check for iommu_do_domctl in XEN_DOMCTL_assign_device domctl processing to make cleaner code - change -ENOTSUPP error code to -ENXIO in sci_do_domctl - handle -ENXIO return comde of iommu_do_domctl - leave !dt_device_is_protected check in iommu_do_dt_domctl to make code work the same way it's done in "handle_device" call while creating hwdom(dom0) and "handle_passthrough_prop" call for dom0less creation - drop return check from sci_assign_dt_device call as not needed - do not return EINVAL when addign_dt_device is not set. That is because this callback is optional and not implemented in single-agent driver xen/arch/arm/firmware/sci.c | 35 +++++++++++++++++++++++++ xen/arch/arm/include/asm/firmware/sci.h | 14 ++++++++++ xen/common/domctl.c | 35 ++++++++++++++++++++++++- xen/drivers/passthrough/device_tree.c | 6 +++++ 4 files changed, 89 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/firmware/sci.c b/xen/arch/arm/firmware/sci.c index aa93cda7f0..31a7e5c28b 100644 --- a/xen/arch/arm/firmware/sci.c +++ b/xen/arch/arm/firmware/sci.c @@ -126,6 +126,41 @@ int sci_assign_dt_device(struct domain *d, struct dt_d= evice_node *dev) return 0; } =20 +int sci_do_domctl(struct xen_domctl *domctl, struct domain *d, + XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl) +{ + struct dt_device_node *dev; + int ret =3D 0; + + switch ( domctl->cmd ) + { + case XEN_DOMCTL_assign_device: + ret =3D -ENXIO; + if ( domctl->u.assign_device.dev !=3D XEN_DOMCTL_DEV_DT ) + break; + + if ( !cur_mediator ) + break; + + if ( !cur_mediator->assign_dt_device ) + break; + + ret =3D dt_find_node_by_gpath(domctl->u.assign_device.u.dt.path, + domctl->u.assign_device.u.dt.size, &de= v); + if ( ret ) + return ret; + + ret =3D sci_assign_dt_device(d, dev); + + break; + default: + /* do not fail here as call is chained with iommu handling */ + break; + } + + return ret; +} + static int __init sci_init(void) { struct dt_device_node *np; diff --git a/xen/arch/arm/include/asm/firmware/sci.h b/xen/arch/arm/include= /asm/firmware/sci.h index 3500216bc2..a2d314e627 100644 --- a/xen/arch/arm/include/asm/firmware/sci.h +++ b/xen/arch/arm/include/asm/firmware/sci.h @@ -146,6 +146,14 @@ int sci_dt_finalize(struct domain *d, void *fdt); * control" functionality. */ int sci_assign_dt_device(struct domain *d, struct dt_device_node *dev); + +/* + * SCI domctl handler + * + * Only XEN_DOMCTL_assign_device is handled for now. + */ +int sci_do_domctl(struct xen_domctl *domctl, struct domain *d, + XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl); #else =20 static inline bool sci_domain_is_enabled(struct domain *d) @@ -195,6 +203,12 @@ static inline int sci_assign_dt_device(struct domain *= d, return 0; } =20 +static inline int sci_do_domctl(struct xen_domctl *domctl, struct domain *= d, + XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_dom= ctl) +{ + return 0; +} + #endif /* CONFIG_ARM_SCI */ =20 #endif /* __ASM_ARM_SCI_H */ diff --git a/xen/common/domctl.c b/xen/common/domctl.c index 954d790226..5a31cccdd7 100644 --- a/xen/common/domctl.c +++ b/xen/common/domctl.c @@ -29,6 +29,9 @@ #include =20 #include +#if IS_ENABLED(CONFIG_ARM) +#include +#endif #include #include #include @@ -274,7 +277,7 @@ static bool is_stable_domctl(uint32_t cmd) =20 long do_domctl(XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl) { - long ret =3D 0; + long ret =3D 0, ret1 =3D 0; bool copyback =3D false; struct xen_domctl curop, *op =3D &curop; struct domain *d; @@ -827,7 +830,37 @@ long do_domctl(XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_= domctl) case XEN_DOMCTL_test_assign_device: case XEN_DOMCTL_deassign_device: case XEN_DOMCTL_get_device_group: + if ( IS_ENABLED(CONFIG_ARM) ) + { + /* + * Add chained handling of assigned DT devices to support + * access-controller functionality through SCI framework, so + * DT device assign request can be passed to FW for processing= and + * enabling VM access to requested device. + * The access-controller DT device processing is called before= IOMMU + * processing preserving return code and expected to be execut= ed for + * any DT device regardless if DT device is protected by IOMMU= or + * not (or IOMMU is disabled). + */ + ret1 =3D sci_do_domctl(op, d, u_domctl); + if ( ret1 < 0 ) + return ret1; + } + else + ret1 =3D -ENXIO; + ret =3D iommu_do_domctl(op, d, u_domctl); + if ( ret < 0 ) + return ret; + + /* + * If IOMMU processing was successful, check for SCI processing re= turn + * code and if it was failed then overwrite the return code to pro= pagate + * SCI failure back to caller. + */ + if ( ret1 !=3D -ENXIO ) + ret =3D ret1; + break; =20 case XEN_DOMCTL_get_paging_mempool_size: diff --git a/xen/drivers/passthrough/device_tree.c b/xen/drivers/passthroug= h/device_tree.c index f5850a2607..29a44dc773 100644 --- a/xen/drivers/passthrough/device_tree.c +++ b/xen/drivers/passthrough/device_tree.c @@ -379,6 +379,12 @@ int iommu_do_dt_domctl(struct xen_domctl *domctl, stru= ct domain *d, break; } =20 + if ( !dt_device_is_protected(dev) ) + { + ret =3D 0; + break; + } + ret =3D iommu_assign_dt_device(d, dev); =20 if ( ret ) --=20 2.34.1