From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 36F34C433F5 for ; Thu, 17 Feb 2022 08:26:03 +0000 (UTC) Received: from localhost ([::1]:41762 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nKc70-0000kd-6d for qemu-devel@archiver.kernel.org; Thu, 17 Feb 2022 03:26:02 -0500 Received: from eggs.gnu.org ([209.51.188.92]:42868) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nKbXq-0003nR-3s for qemu-devel@nongnu.org; Thu, 17 Feb 2022 02:49:43 -0500 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]:5652) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nKbXj-0004Rw-AJ for qemu-devel@nongnu.org; Thu, 17 Feb 2022 02:49:39 -0500 Received: from pps.filterd (m0246630.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 21H5U2GN009058; Thu, 17 Feb 2022 07:49:33 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-type : content-transfer-encoding : mime-version; s=corp-2021-07-09; bh=iST3K82NIeqW+bG3KB6k4nm6u1olMU0vXCsFdF5rD94=; b=lHlc8y+anRaUcKNImHo61vlLGSTyOvn+5yI9EMaaLzZ8Kj5B+KNdWc4l+ch3Axq/U03k 8DSA8cgF0wOQOedHr3QkwvBfYPGF+55U3oR0uEd+4sFVCz9ESWLxG+/QmincWTDnERMy cRw9EqSXWCilp+eGS9Xn/h5MyYDlr9ng3ijJ85Ljg+fDXDiqxMXDj2IBnuUZVWaTg5ZU FRdjAWcGp7HpUnWCiIxunVyEbLTSJD9tjqZZzolQMI/0UCKGPeoBZmiSQoRAQME8b3K9 viiitvt7rj3OXfOPI1zQ8UqeVIMpc/UhkFVwquCG7Gcve2IxsGiZLXqOVh5Gw3OuXJuE kA== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by mx0b-00069f02.pphosted.com with ESMTP id 3e8nb3mhqx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 17 Feb 2022 07:49:31 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.1.2/8.16.1.2) with SMTP id 21H7gaTG088434; Thu, 17 Feb 2022 07:49:30 GMT Received: from nam11-co1-obe.outbound.protection.outlook.com (mail-co1nam11lp2176.outbound.protection.outlook.com [104.47.56.176]) by aserp3030.oracle.com with ESMTP id 3e9brc0r8d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 17 Feb 2022 07:49:29 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=mB+tVV/6cGnGlBzjEfkML69xfnpP7XDbUSib061r16yENLUUD70jhZdnOzyyjg/eHtVv7YscKSMxUB3YFli41ZX7bKOUiMXoBNfOr2FqOPFQmDjCclXlLg5Su7u0lXmv7DOO9LapLY9k8G+WRcgcDVG9I+uFvPIL5m4YLkcS9GylwLecvZnQQs2vaTto1z0NLEvmDaa2N0NGZC0tl0n/LfjqUogb9tDNzC+Rc6JNgxfQQg55oPL6vmcitWfwX21QUSna7OlU5s0MPfLM67M4tJAMzXdC79pO7nFi/I88VHKBKd21zS0P2ACTsBPq+mJG/HOHl1A639xEYEzfe1yIyw== 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=iST3K82NIeqW+bG3KB6k4nm6u1olMU0vXCsFdF5rD94=; b=XZHcDWS6X79Zp/JMQJTl9tMy242jkazaLV+POCBS3T5Cfx/IMD4mmrBmflcRpr9ltMgktumNcM9AgPjHClYadVKaauBNSt8nSoOJmLfS56O61uiTpBAsnr9eK9jJrMyY6WMENH/wQhiSAb7ZMfKmlCHhLbjqhkglEV53wpG9LT/PxjyhlYzJtWwa9WU6e2BTUJgeCDS1imKZC0dCzcwXXUKS74ey8uDH38UpsYVPAVG+1qrk0cGj44XDrQTBHUIshCCQBuwHN3AqTQbOOmAC4QCMbx+HvweeMpdnC/hjcLNo3b8SoP9696tcuhe5OwXdfx6WprqCKTlU1CJCvnbi5A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=iST3K82NIeqW+bG3KB6k4nm6u1olMU0vXCsFdF5rD94=; b=fjfKilRbkKdDfXXeqnwlReSy2fuFroSRRJj8Vrd8WFnUSx1DKCyhClUaNSoTBTNfAEZCeNz40WWSQ2hVsL+n83WWNVjHFeWTSa8kFprt9yuYssXFS647PlU0jaYjCf6bBTUNTCtk2BbC/9rm01etpRwSQ2BB0MIcTnbGLXO1te4= Received: from CH2PR10MB4008.namprd10.prod.outlook.com (2603:10b6:610:c::22) by DM6PR10MB3211.namprd10.prod.outlook.com (2603:10b6:5:1a6::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4975.17; Thu, 17 Feb 2022 07:49:27 +0000 Received: from CH2PR10MB4008.namprd10.prod.outlook.com ([fe80::8062:cb07:e437:1bfe]) by CH2PR10MB4008.namprd10.prod.outlook.com ([fe80::8062:cb07:e437:1bfe%6]) with mapi id 15.20.4995.016; Thu, 17 Feb 2022 07:49:27 +0000 From: Jagannathan Raman To: qemu-devel@nongnu.org Subject: [PATCH v6 07/19] vfio-user: define vfio-user-server object Date: Thu, 17 Feb 2022 02:48:54 -0500 Message-Id: <309a6afc6f47d7e812a6f18ce591dff092efbb06.1645079934.git.jag.raman@oracle.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: SA9PR10CA0002.namprd10.prod.outlook.com (2603:10b6:806:a7::7) To CH2PR10MB4008.namprd10.prod.outlook.com (2603:10b6:610:c::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: e8ff7ce3-0192-4cfa-516c-08d9f1ea05ea X-MS-TrafficTypeDiagnostic: DM6PR10MB3211:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:457; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:CH2PR10MB4008.namprd10.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230001)(366004)(83380400001)(186003)(66946007)(38350700002)(7416002)(4326008)(107886003)(26005)(66556008)(6916009)(8676002)(5660300002)(2616005)(8936002)(86362001)(38100700002)(66476007)(36756003)(316002)(508600001)(52116002)(6512007)(6506007)(2906002)(6666004)(6486002); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?WWh1cG8vQ3RlZkVrRDFPd29wa1NDaHhncnZOeTFWNU0vVDlxTDdKZUlpZnZu?= =?utf-8?B?R1RveHpjYjYvanFHODN1NXVCQ2E5RVRHUHdqb2dnNFgyVXo0c2FQdDdyL095?= =?utf-8?B?OTdtc2kzOElKck1oQnVKVnF6dUIycmpoQ0gwQ2oraUIzQVp1bktiT0JHTEtK?= =?utf-8?B?dXoySmd4KzhwcHhQSUNkcjE3RUY3RFJZMWFqVEVmSHpQeUUxcTIvUW9sdnhk?= =?utf-8?B?TkhjTFZXdlFiWjVYNVlqZVVhcFR1Sngva2F6KzdIaGFVMGlzVGpSdHhVY1cx?= =?utf-8?B?eElzUjh1b3p5MDZVTUUrWHA5b3FvbWo2WFBtK1QydXZRemFyZ0duNCtlMFFZ?= =?utf-8?B?Nmdxb2F1bGRIKzJ5aldGVTFuY0gwSG9EcjVUdU14emtiNlRkQzRBYXpZSTVu?= =?utf-8?B?TUhpallKWmdHRDdYaFBjRVZFbnJQcWhiOXY1WE82dmdzTXNXeHcrUWIyb3Bv?= =?utf-8?B?WW9zTXo3NzdidFF4dEhOMW9IbCtnZERQcmMvUFFSNmFJRlEweXFmV2NIc0pD?= =?utf-8?B?RTB4OU15UzRBbTExUzczcmZRT1QyODF2c3NJS0tTeS9ObVdCNTFpM1Q5U1Nt?= =?utf-8?B?VXZOQ1FSKzlCUU5JaTBoZElDTEJtRG1mM2RzRUhFb3JleWhYcXhuc0Zma0lx?= =?utf-8?B?LzlodHpiSGE0VXViWnBJL2xodnVaNXB1bjYyVUpiMXRqWEl2akkrYzlGbUpp?= =?utf-8?B?NTI1SFlZTjRTaWswcHFiMkZJVmdtV25UTzg5L0FsbWljNUxXR3ZHeG9RTklL?= =?utf-8?B?T1E1TmJNU2VUeFUxU3ZlTkwxRTgwVkRIYzJ5MUhLL0c4cER1RzZwRTAzU01L?= =?utf-8?B?dXFUV3dXV2MzZVhWRzJZcUE4dkE4cnptdEltU3hDUytKSGRpMjVSbmZIVC9H?= =?utf-8?B?VlhXTU1TRDJsUUE3U0M2bENGTTN5YkJrRy9DM091MDRiOTJJYlJOSVh2cnBI?= =?utf-8?B?UUpNb2F4VUEzL0tabFB0SEc0NGUyc2FyU1pkZVVYSzZjdEVncHgzY09PcWJM?= =?utf-8?B?bDBpeTBRdzZvTUlEWmhncXV3L24ySG1hUks3emgxYW16aFhYRGRxSG9zVVFB?= =?utf-8?B?SHJ6MjRPei9yVm85TXVCRy9SdldQTSsrL1hEcWh3bi8wNUdMSFovV3F1eHN2?= =?utf-8?B?V2d5bUpWUzJyeWpFQmdKLzdqOHVwbGFhalhJRkhjRE92Z1RWYjlScDRmdDlZ?= =?utf-8?B?dXoxTkFwOXNrYW40WUd6dFNaUHRWRWE1NSttU21nbW5ZSTk2TFhaaXRScHdl?= =?utf-8?B?Y1AzYWVhZk9CWU90SkV1ZXBIL2hpSDhUNFpnR1ZySG9oS3BkM1hSVmxRSlBC?= =?utf-8?B?dWRySGlmQzA3aXpiVy9YWmp4ckZ0ekNxSlpLVzBtV2lkZTgwaHNSRytadjdj?= =?utf-8?B?REZ2Y1lvNlUyaVFQa1g5UTF0YjFEeVErWVdTRzdVcDZnS2Q4UVZmU1BUeU12?= =?utf-8?B?aFVyNHFiSlZna0J6bEVyUWZhNDlRUjZEMGdWcVMwQzhqNVB4dGNkVktvbkZz?= =?utf-8?B?eE5Dd3F5bHdqWW5GeldQZG9hemVMR2VlbXkyaXFwWFRHVDA2RFRyNTIyRzl0?= =?utf-8?B?dFQwZUNxQU9keGtaVHFTWGJUR0hSUHlVNXl1Y3YvNjBUWjZvWDB4UjV1YWho?= =?utf-8?B?WFhWYkZGbzE0V25pTlZiVnVtRkJmVmdJalRBOElCYWRUZ2E3blVaYTB5Ry96?= =?utf-8?B?VUJac3I0M08xVDk2blAzYlJ3TVhYMUNhZThMeGRObzliRTJneFdpUnllYzNC?= =?utf-8?B?REt6dmh4Z2ZDdi93bnhLRENiZzdMK1RYc0dwV280VlJUQVdjTFYwcG8wMGJm?= =?utf-8?B?NEZXT29ON2s3L21PdE5aeUNueVpVbkdEVXcrUmZUZUIyaUh2ZzMxZFNpS0E5?= =?utf-8?B?UG5oTVlHbE5xa3VjQjJjQUloc1ZiNG5xSm5GalZ1ZzNoT1ArVjFwSVZwNktu?= =?utf-8?B?TEVzUFdpZ2ZPdGVYSk9wL20wT1lsQlJSU2NIdzJzb1ZVR2tQcFJkYk1JOFND?= =?utf-8?B?QjdQRHlFT05Zd2Q2Z1IrQUdlWXVhMmgxSWdOMitnLzNrY3h6Y0diSnpoblY2?= =?utf-8?B?c2o2VUFqamo4OGFPOWV3a1l0dVhIVm0xNm8xRm9xLytCc0hwcVFkUC9lMWhO?= =?utf-8?B?VlplYjNZdGNkMmFzRWNNMWlDSzZMQ0FmRlpQbGNBTEpkR3ExL1hadFJuVmwr?= =?utf-8?Q?zCS3fKbG7K3B5Ujit/D7u1I=3D?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: e8ff7ce3-0192-4cfa-516c-08d9f1ea05ea X-MS-Exchange-CrossTenant-AuthSource: CH2PR10MB4008.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Feb 2022 07:49:27.4769 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: /fTKYkIB9a3qk1khgreVwDKN0w/CgENCw0X5G5mSdxjq0oXbIRcqDQDQ7ARO2UeL1oQoyAzLHAD6p8TxSaOR2g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR10MB3211 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10260 signatures=675971 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 phishscore=0 suspectscore=0 mlxscore=0 mlxlogscore=999 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2202170034 X-Proofpoint-GUID: VbvgAWl2MO6-Xc8HBmOeuCI9MMxqE0m_ X-Proofpoint-ORIG-GUID: VbvgAWl2MO6-Xc8HBmOeuCI9MMxqE0m_ Received-SPF: pass client-ip=205.220.177.32; envelope-from=jag.raman@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=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: , Cc: eduardo@habkost.net, elena.ufimtseva@oracle.com, john.g.johnson@oracle.com, berrange@redhat.com, bleal@redhat.com, john.levon@nutanix.com, mst@redhat.com, armbru@redhat.com, quintela@redhat.com, f4bug@amsat.org, alex.williamson@redhat.com, kanth.ghatraju@oracle.com, stefanha@redhat.com, thanos.makatos@nutanix.com, pbonzini@redhat.com, jag.raman@oracle.com, eblake@redhat.com, dgilbert@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Define vfio-user object which is remote process server for QEMU. Setup object initialization functions and properties necessary to instantiate the object Signed-off-by: Elena Ufimtseva Signed-off-by: John G Johnson Signed-off-by: Jagannathan Raman Reviewed-by: Stefan Hajnoczi --- qapi/qom.json | 20 +++- hw/remote/vfio-user-obj.c | 194 ++++++++++++++++++++++++++++++++++++++ MAINTAINERS | 1 + hw/remote/meson.build | 1 + hw/remote/trace-events | 3 + 5 files changed, 217 insertions(+), 2 deletions(-) create mode 100644 hw/remote/vfio-user-obj.c diff --git a/qapi/qom.json b/qapi/qom.json index eeb5395ff3..ff266e4732 100644 --- a/qapi/qom.json +++ b/qapi/qom.json @@ -703,6 +703,20 @@ { 'struct': 'RemoteObjectProperties', 'data': { 'fd': 'str', 'devid': 'str' } } +## +# @VfioUserServerProperties: +# +# Properties for x-vfio-user-server objects. +# +# @socket: socket to be used by the libvfiouser library +# +# @device: the id of the device to be emulated at the server +# +# Since: 6.3 +## +{ 'struct': 'VfioUserServerProperties', + 'data': { 'socket': 'SocketAddress', 'device': 'str' } } + ## # @RngProperties: # @@ -842,7 +856,8 @@ 'tls-creds-psk', 'tls-creds-x509', 'tls-cipher-suites', - { 'name': 'x-remote-object', 'features': [ 'unstable' ] } + { 'name': 'x-remote-object', 'features': [ 'unstable' ] }, + { 'name': 'x-vfio-user-server', 'features': [ 'unstable' ] } ] } ## @@ -905,7 +920,8 @@ 'tls-creds-psk': 'TlsCredsPskProperties', 'tls-creds-x509': 'TlsCredsX509Properties', 'tls-cipher-suites': 'TlsCredsProperties', - 'x-remote-object': 'RemoteObjectProperties' + 'x-remote-object': 'RemoteObjectProperties', + 'x-vfio-user-server': 'VfioUserServerProperties' } } ## diff --git a/hw/remote/vfio-user-obj.c b/hw/remote/vfio-user-obj.c new file mode 100644 index 0000000000..84cd16c4ad --- /dev/null +++ b/hw/remote/vfio-user-obj.c @@ -0,0 +1,194 @@ +/** + * QEMU vfio-user-server server object + * + * Copyright © 2022 Oracle and/or its affiliates. + * + * This work is licensed under the terms of the GNU GPL-v2, version 2 or later. + * + * See the COPYING file in the top-level directory. + * + */ + +/** + * Usage: add options: + * -machine x-remote,vfio-user=on + * -device ,id= + * -object x-vfio-user-server,id=,type=unix,path=, + * device= + * + * Note that x-vfio-user-server object must be used with x-remote machine only. + * This server could only support PCI devices for now. + * + * type - SocketAddress type - presently "unix" alone is supported. Required + * option + * + * path - named unix socket, it will be created by the server. It is + * a required option + * + * device - id of a device on the server, a required option. PCI devices + * alone are supported presently. + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" + +#include "qom/object.h" +#include "qom/object_interfaces.h" +#include "qemu/error-report.h" +#include "trace.h" +#include "sysemu/runstate.h" +#include "hw/boards.h" +#include "hw/remote/machine.h" +#include "qapi/error.h" +#include "qapi/qapi-visit-sockets.h" + +#define TYPE_VFU_OBJECT "x-vfio-user-server" +OBJECT_DECLARE_TYPE(VfuObject, VfuObjectClass, VFU_OBJECT) + +/** + * VFU_OBJECT_ERROR - reports an error message. If auto_shutdown + * is set, it aborts the machine on error. Otherwise, it logs an + * error message without aborting. + */ +#define VFU_OBJECT_ERROR(o, fmt, ...) \ + { \ + VfuObjectClass *oc = VFU_OBJECT_GET_CLASS(OBJECT(o)); \ + \ + if (oc->auto_shutdown) { \ + error_setg(&error_abort, (fmt), ## __VA_ARGS__); \ + } else { \ + error_report((fmt), ## __VA_ARGS__); \ + } \ + } \ + +struct VfuObjectClass { + ObjectClass parent_class; + + unsigned int nr_devs; + + /* + * Can be set to shutdown automatically when all server object + * instances are destroyed + */ + bool auto_shutdown; +}; + +struct VfuObject { + /* private */ + Object parent; + + SocketAddress *socket; + + char *device; + + Error *err; +}; + +static void vfu_object_set_socket(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + VfuObject *o = VFU_OBJECT(obj); + + qapi_free_SocketAddress(o->socket); + + o->socket = NULL; + + visit_type_SocketAddress(v, name, &o->socket, errp); + + if (o->socket->type != SOCKET_ADDRESS_TYPE_UNIX) { + error_setg(errp, "vfu: Unsupported socket type - %s", + SocketAddressType_str(o->socket->type)); + qapi_free_SocketAddress(o->socket); + o->socket = NULL; + return; + } + + trace_vfu_prop("socket", o->socket->u.q_unix.path); +} + +static void vfu_object_set_device(Object *obj, const char *str, Error **errp) +{ + VfuObject *o = VFU_OBJECT(obj); + + g_free(o->device); + + o->device = g_strdup(str); + + trace_vfu_prop("device", str); +} + +static void vfu_object_init(Object *obj) +{ + VfuObjectClass *k = VFU_OBJECT_GET_CLASS(obj); + VfuObject *o = VFU_OBJECT(obj); + + k->nr_devs++; + + if (!object_dynamic_cast(OBJECT(current_machine), TYPE_REMOTE_MACHINE)) { + error_setg(&o->err, "vfu: %s only compatible with %s machine", + TYPE_VFU_OBJECT, TYPE_REMOTE_MACHINE); + return; + } +} + +static void vfu_object_finalize(Object *obj) +{ + VfuObjectClass *k = VFU_OBJECT_GET_CLASS(obj); + VfuObject *o = VFU_OBJECT(obj); + + k->nr_devs--; + + qapi_free_SocketAddress(o->socket); + + o->socket = NULL; + + g_free(o->device); + + o->device = NULL; + + if (!k->nr_devs && k->auto_shutdown) { + qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + } +} + +static void vfu_object_class_init(ObjectClass *klass, void *data) +{ + VfuObjectClass *k = VFU_OBJECT_CLASS(klass); + + k->nr_devs = 0; + + k->auto_shutdown = true; + + object_class_property_add(klass, "socket", "SocketAddress", NULL, + vfu_object_set_socket, NULL, NULL); + object_class_property_set_description(klass, "socket", + "SocketAddress " + "(ex: type=unix,path=/tmp/sock). " + "Only UNIX is presently supported"); + object_class_property_add_str(klass, "device", NULL, + vfu_object_set_device); + object_class_property_set_description(klass, "device", + "device ID - only PCI devices " + "are presently supported"); +} + +static const TypeInfo vfu_object_info = { + .name = TYPE_VFU_OBJECT, + .parent = TYPE_OBJECT, + .instance_size = sizeof(VfuObject), + .instance_init = vfu_object_init, + .instance_finalize = vfu_object_finalize, + .class_size = sizeof(VfuObjectClass), + .class_init = vfu_object_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_USER_CREATABLE }, + { } + } +}; + +static void vfu_register_types(void) +{ + type_register_static(&vfu_object_info); +} + +type_init(vfu_register_types); diff --git a/MAINTAINERS b/MAINTAINERS index 9af3e96d63..751d97852d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3568,6 +3568,7 @@ F: include/hw/remote/proxy-memory-listener.h F: hw/remote/iohub.c F: include/hw/remote/iohub.h F: subprojects/libvfio-user +F: hw/remote/vfio-user-obj.c EBPF: M: Jason Wang diff --git a/hw/remote/meson.build b/hw/remote/meson.build index dfea6b533b..534ac5df79 100644 --- a/hw/remote/meson.build +++ b/hw/remote/meson.build @@ -6,6 +6,7 @@ remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('message.c')) remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('remote-obj.c')) remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('proxy.c')) remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('iohub.c')) +remote_ss.add(when: 'CONFIG_VFIO_USER_SERVER', if_true: files('vfio-user-obj.c')) remote_ss.add(when: 'CONFIG_VFIO_USER_SERVER', if_true: vfiouser) diff --git a/hw/remote/trace-events b/hw/remote/trace-events index 0b23974f90..7da12f0d96 100644 --- a/hw/remote/trace-events +++ b/hw/remote/trace-events @@ -2,3 +2,6 @@ mpqemu_send_io_error(int cmd, int size, int nfds) "send command %d size %d, %d file descriptors to remote process" mpqemu_recv_io_error(int cmd, int size, int nfds) "failed to receive %d size %d, %d file descriptors to remote process" + +# vfio-user-obj.c +vfu_prop(const char *prop, const char *val) "vfu: setting %s as %s" -- 2.20.1