Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp5157106pxj; Wed, 9 Jun 2021 10:24:28 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx79r87uwcMcuNcTL+dRct7c90lvigiPp9PigwrdrjR/tU2OVorKaXMc/7z2ESpNOyMOexI X-Received: by 2002:a17:906:1404:: with SMTP id p4mr896267ejc.107.1623259468119; Wed, 09 Jun 2021 10:24:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1623259468; cv=none; d=google.com; s=arc-20160816; b=jHhDbH9vnpSbE3aBH4f7lj1hLfp/+Chbh21zVEkRHjvqzIku/8EvPkPNE2aoYwZ56f q3EzS5XrcMdwHJ0qcTO7Za2wWG3UTwpWlOAi90ueWfKTtxz9e/YoZE4YGrnkvMxp477p Cwzs6QzD9DaMqObnn72nlxqL9tkQ6vc89VaL83Y8LgiPfFu74FdK7IcS+FBX9PdU3ibG NMYuO/H6zydZCWP3wx2ZQFijZd/o2R5kvDLq9yoqDGQQysp0fbp3Tamaa7bwZUUZg66Y U/t8Tucy8QbnXhH5fn3ZgbBVLPNgs2HslhittQKW50B5lOw+5lil58qX6bAa8TTjRJ25 51JQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=kI0S2MhvubAa2Qc5WRVrrUrRYBfNXKdiEzKHQApL/h0=; b=HoYA89yWe46r3D4fSRF6FEbCgu8Whg9y0aWsyZW3es8H28fkslNO2VCR7ard77YZzp HL1j5g33ElS6rLcP3xbqSp4pDVTieWIQUGHUnQDerttAvv4thd9Us+2oBFeuUC7l49Vk JnJtD//e7PeBa2wEVSmpNZu9vz2X5A4k6F89mRoXMKijjERHqTI7qz5fbHw9IleqMLgx /RONA9S4PgRpPqSgIT8bTgQShLhrdMM8aruaBr/eeDwkqns0nFEXW+JE7CoiI0GzNp5n byDwddIi8MtpJY0SS4PVMtfvRUr1sDPcCDr5+iEXRlx2U/LyvuakcLWJ5XA3nSruq4su VpXA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=8bytes.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id g3si210619edm.453.2021.06.09.10.24.03; Wed, 09 Jun 2021 10:24:28 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=8bytes.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232357AbhFIM0C (ORCPT + 99 others); Wed, 9 Jun 2021 08:26:02 -0400 Received: from 8bytes.org ([81.169.241.247]:43274 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232278AbhFIM0A (ORCPT ); Wed, 9 Jun 2021 08:26:00 -0400 Received: by theia.8bytes.org (Postfix, from userid 1000) id B438636A; Wed, 9 Jun 2021 14:24:04 +0200 (CEST) Date: Wed, 9 Jun 2021 14:24:03 +0200 From: Joerg Roedel To: "Tian, Kevin" Cc: Jason Gunthorpe , "Alex Williamson (alex.williamson@redhat.com)" , Jean-Philippe Brucker , David Gibson , Jason Wang , "parav@mellanox.com" , "Enrico Weigelt, metux IT consult" , Paolo Bonzini , Shenming Lu , Eric Auger , Jonathan Corbet , "Raj, Ashok" , "Liu, Yi L" , "Wu, Hao" , "Jiang, Dave" , Jacob Pan , Kirti Wankhede , Robin Murphy , "kvm@vger.kernel.org" , "iommu@lists.linux-foundation.org" , David Woodhouse , LKML , Lu Baolu Subject: Re: Plan for /dev/ioasid RFC v2 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 07, 2021 at 02:58:18AM +0000, Tian, Kevin wrote: > - Device-centric (Jason) vs. group-centric (David) uAPI. David is not fully > convinced yet. Based on discussion v2 will continue to have ioasid uAPI > being device-centric (but it's fine for vfio to be group-centric). A new > section will be added to elaborate this part; I would vote for group-centric here. Or do the reasons for which VFIO is group-centric not apply to IOASID? If so, why? Regards, Joerg