From nobody Wed Nov 27 09:48:38 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; 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; dmarc=pass(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1699957622; cv=none; d=zohomail.com; s=zohoarc; b=T4bbIP5SrbIOqkYXjhJLyiF2oT/XJ2R2C/Rcy02rTUB8mBSQZmowRabZD8T1xgfPIXZueZoIkzPWeBU62PbSjYNrarKR+m85cE1mSkj97wgrqk+r2urVuOKHxP42SoTuDwYjjWegkoWXHW1bPlRobItnB2K//Sj05pGn9ZYw2dI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1699957622; h=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=y2SlT7uOG7HgUXS4H+aiTpAPSQX8VFe7z9M2/PF7BIo=; b=JguLREiwBoOUki/Rch34xJ6SJi4CC1M62zLvgqh6aTPvu32CIsfmhFG5H/L3XlZuBMiGF1CVqMfS2QkTzfUY7TwgBHCgZ+B1EDfmiPvxChSs7sYMQd2DjNUTWMkMObGg3jRj499KJH842B6H3OygUuGK7P8J7Ha9Gs2+e3F0yLQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=@intel.com; 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; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1699957622410749.327570345782; Tue, 14 Nov 2023 02:27:02 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r2qcl-0003U9-QF; Tue, 14 Nov 2023 05:26:28 -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 1r2qce-0003O9-Uh for qemu-devel@nongnu.org; Tue, 14 Nov 2023 05:26:21 -0500 Received: from mgamail.intel.com ([134.134.136.65]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r2qcd-0007jy-AU for qemu-devel@nongnu.org; Tue, 14 Nov 2023 05:26:20 -0500 Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Nov 2023 02:26:18 -0800 Received: from duan-server-s2600bt.bj.intel.com ([10.240.192.147]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Nov 2023 02:26:14 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699957579; x=1731493579; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1AlHdGy5eNf79L0VomzlegbQcv+r71rrv0zOhI6kYCM=; b=QW6zAsvOiGzh3ErAyiiJbOfsKbVONWCikdYIMNgt97zoq8Vzh0e9Fis6 KHiDD9JIgIIzu2eJaDsle0ahOmmOg54bKy6HyDfnD0j0riMuz3HCjAzCO 5ingKbyA0og/3rf63+8eyeRX5pW+1jlAMe1wUjXHDpgfEHiajJiRvKso4 h9LnW+9ehW4tGlOfZ0uM+hBDThShUDjjH9+rTZi1Peo5Z/JlqcDqRaGX1 l56TeytILw0DTUo1YvjR7GBLKXopFRrd9LDnZeHyP96gvlx7a+GXrq06I O5hV1ct3iA4pg2obzYfLbum2c+PxYCI/w8aD7XOOB9wE/DpnZ9jj9puhe w==; X-IronPort-AV: E=McAfee;i="6600,9927,10893"; a="394543554" X-IronPort-AV: E=Sophos;i="6.03,301,1694761200"; d="scan'208";a="394543554" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10893"; a="888213075" X-IronPort-AV: E=Sophos;i="6.03,301,1694761200"; d="scan'208";a="888213075" From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v6 12/21] vfio/platform: Allow the selection of a given iommu backend Date: Tue, 14 Nov 2023 18:09:46 +0800 Message-Id: <20231114100955.1961974-13-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231114100955.1961974-1-zhenzhong.duan@intel.com> References: <20231114100955.1961974-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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 client-ip=134.134.136.65; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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, RCVD_IN_DNSWL_MED=-2.3, 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1699957623363100001 Content-Type: text/plain; charset="utf-8" Now we support two types of iommu backends, let's add the capability to select one of them. This depends on whether an iommufd object has been linked with the vfio-platform device: If the user wants to use the legacy backend, it shall not link the vfio-platform device with any iommufd object: -device vfio-platform,host=3DXXX This is called the legacy mode/backend. If the user wants to use the iommufd backend (/dev/iommu) it shall pass an iommufd object id in the vfio-platform device options: -object iommufd,id=3Diommufd0 -device vfio-platform,host=3DXXX,iommufd=3Diommufd0 Suggested-by: Alex Williamson Signed-off-by: Zhenzhong Duan Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Eric Auger --- v6: Move #include "sysemu/iommufd.h" in platform.c hw/vfio/platform.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c index 8e3d4ac458..98ae4bc655 100644 --- a/hw/vfio/platform.c +++ b/hw/vfio/platform.c @@ -15,11 +15,13 @@ */ =20 #include "qemu/osdep.h" +#include CONFIG_DEVICES /* CONFIG_IOMMUFD */ #include "qapi/error.h" #include #include =20 #include "hw/vfio/vfio-platform.h" +#include "sysemu/iommufd.h" #include "migration/vmstate.h" #include "qemu/error-report.h" #include "qemu/lockable.h" @@ -649,6 +651,10 @@ static Property vfio_platform_dev_properties[] =3D { DEFINE_PROP_UINT32("mmap-timeout-ms", VFIOPlatformDevice, mmap_timeout, 1100), DEFINE_PROP_BOOL("x-irqfd", VFIOPlatformDevice, irqfd_allowed, true), +#ifdef CONFIG_IOMMUFD + DEFINE_PROP_LINK("iommufd", VFIOPlatformDevice, vbasedev.iommufd, + TYPE_IOMMUFD_BACKEND, IOMMUFDBackend *), +#endif DEFINE_PROP_END_OF_LIST(), }; =20 --=20 2.34.1