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 F0EFBC83F10 for ; Thu, 31 Aug 2023 12:26:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346234AbjHaM0m (ORCPT ); Thu, 31 Aug 2023 08:26:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245372AbjHaM0l (ORCPT ); Thu, 31 Aug 2023 08:26:41 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7355B19A; Thu, 31 Aug 2023 05:26:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=xznFs8Mqdf536+ELzSud2X/8Vl7HPTIZ4nxAqQyBBj4=; b=MzPFKTeyFG+zlbChN7Mle38r12 JdcpYQZstPRes24wVde0gK8ukLb0N5298ASor90AlfUbHlQCY2EJIUtK/nQAb3m9pVrn9X9Wmr6Am GJefmUGtp5KcHe4AQmKAcffC8PCdSN0Fh0wQkwDFbNc58BSe49MIbUe2wCHLyG19GMeb6RgPobaol saULWaHosigANbsdbIK7E75CkZiazEKa//9Npke/F2s5XJleYBwJqdxVnFR5RZLJ/eQ5uKRFXKv8n 6s/KOdxc+6Q8E9liWaXATNdTcwuZpDNdkheK8nxKU1bqQkrsEP1htAdE0lxWtB5cd5ce8CH3mAZCD 1w404GRw==; Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1qbgkp-00FHM9-2W; Thu, 31 Aug 2023 12:26:31 +0000 Date: Thu, 31 Aug 2023 05:26:31 -0700 From: Christoph Hellwig To: Jason Gunthorpe Cc: Christoph Hellwig , ankita@nvidia.com, alex.williamson@redhat.com, yishaih@nvidia.com, shameerali.kolothum.thodi@huawei.com, kevin.tian@intel.com, aniketa@nvidia.com, cjia@nvidia.com, kwankhede@nvidia.com, targupta@nvidia.com, vsethi@nvidia.com, acurrid@nvidia.com, apopple@nvidia.com, jhubbard@nvidia.com, danw@nvidia.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , David Airlie , dri-devel@lists.freedesktop.org, Daniel Vetter Subject: Re: [PATCH v7 1/1] vfio/nvgpu: Add vfio pci variant module for grace hopper Message-ID: References: <20230822202303.19661-1-ankita@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Wed, Aug 30, 2023 at 12:39:05PM -0300, Jason Gunthorpe wrote: > On Wed, Aug 30, 2023 at 06:50:32AM -0700, Christoph Hellwig wrote: > > I know I'm chiming in a bit late, but what ultimate user space is going > > to use this? We should not add anything to the kernel that can't > > be used without fully open user space. > > qemu will get the matching VFIO userspace patches, I think they were > posted someplace already. Well, that's not what I mean with full userspace. Whats the actual consumer running in a qemu VM here?