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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB25AC636D4 for ; Sat, 11 Feb 2023 03:16:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229589AbjBKDQX (ORCPT ); Fri, 10 Feb 2023 22:16:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59482 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229534AbjBKDQW (ORCPT ); Fri, 10 Feb 2023 22:16:22 -0500 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 485965D1EF; Fri, 10 Feb 2023 19:16:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676085380; x=1707621380; h=message-id:date:mime-version:cc:subject:to:references: from:in-reply-to:content-transfer-encoding; bh=baRNMwBAPh/BuSmPIF/k5pXMeSErRmwR427dgjs/qvg=; b=mkn2Hx5mENTIqyOPEMhAjpeQ0t99emxuBd8sm4RxKF/uRUf2OqeS0eft 55GQrVCTX00zohDOABARqturE8//7w0CLTmXXShsoC0r4za+xGwX1l0uQ 9TWdc8A8Y5Jnt2kIoau8HZY7wEcRxcIfss0fUHmVnQcMUVk+SrMhWUmy/ jCTu4vHJgcJmMQZX3oTxJUO0yiAHA0iH4K0SqRruA3u+IC3c2BfZGJIxG 8yUQz/0WGDcq/nMulTGCM4QD32RTDkYWz8+Qy88mgP+eaqDT92rBNeQca vEqDq7ICyhz7IBOozTFwiCfKuTE/uXgx5K8Sjyk2fe4HXUbEim2c97QXt g==; X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="330586588" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="330586588" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2023 19:16:19 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="645830380" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="645830380" Received: from blu2-mobl.ccr.corp.intel.com (HELO [10.249.168.175]) ([10.249.168.175]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2023 19:16:14 -0800 Message-ID: <115a6f87-11e5-5af8-eba2-60305177e554@linux.intel.com> Date: Sat, 11 Feb 2023 11:16:12 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.7.2 Cc: baolu.lu@linux.intel.com, "cohuck@redhat.com" , "eric.auger@redhat.com" , "nicolinc@nvidia.com" , "kvm@vger.kernel.org" , "mjrosato@linux.ibm.com" , "chao.p.peng@linux.intel.com" , "yi.y.sun@linux.intel.com" , "peterx@redhat.com" , "jasowang@redhat.com" , "shameerali.kolothum.thodi@huawei.com" , "lulu@redhat.com" , "suravee.suthikulpanit@amd.com" , "iommu@lists.linux.dev" , "linux-kernel@vger.kernel.org" , "linux-kselftest@vger.kernel.org" Subject: Re: [PATCH 01/17] iommu: Add new iommu op to create domains owned by userspace To: "Tian, Kevin" , "Liu, Yi L" , "joro@8bytes.org" , "alex.williamson@redhat.com" , "jgg@nvidia.com" , "robin.murphy@arm.com" References: <20230209043153.14964-1-yi.l.liu@intel.com> <20230209043153.14964-2-yi.l.liu@intel.com> Content-Language: en-US From: Baolu Lu In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 2023/2/10 16:24, Tian, Kevin wrote: >> From: Liu, Yi L >> Sent: Thursday, February 9, 2023 12:32 PM >> >> From: Lu Baolu >> >> Introduce a new iommu_domain op to create domains owned by userspace, >> e.g. through iommufd. These domains have a few different properties >> compares to kernel owned domains: >> >> - They may be MANAGED domains, but created with special parameters. >> For instance aperture size changes/number of levels, different >> IOPTE formats, or other things necessary to make a vIOMMU work >> > > what is *MANAGED* domain? > > today we only have the separation between DMA domain and > UNMANAGED domain. > > soon with Jason's cleanup all domains are called UNMANAGED. It should be UNMANAGED domain. Best regards, baolu