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 X-Spam-Level: X-Spam-Status: No, score=-6.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 761F6C49EA3 for ; Mon, 28 Jun 2021 13:02:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6121361C69 for ; Mon, 28 Jun 2021 13:02:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233146AbhF1NFE (ORCPT ); Mon, 28 Jun 2021 09:05:04 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:27280 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233144AbhF1NE6 (ORCPT ); Mon, 28 Jun 2021 09:04:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624885352; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=fndY61EcgfzsXcmaCK7BMnLfNMbphujT+QMr+Pswt68=; b=X6T/iuKD+AFk+X80dNVL+1r5wBU2fX3r/iDCep2iLs8kj1k2nmsfWugdrTV9q6+ZMIaevf aC1kqZnVSROO1VyYvioQBdcpVcYlCa/mHgq6/zW5ECQTJeg0qvJTbMMdaz/+8D3ZiYpiXs AnaOmWKpmGcY6qbAK2Eukrj+wI+eOjQ= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-128-lJbSiAWjOGCgZVrmUVHPPA-1; Mon, 28 Jun 2021 09:02:28 -0400 X-MC-Unique: lJbSiAWjOGCgZVrmUVHPPA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 88C80800C78; Mon, 28 Jun 2021 13:02:25 +0000 (UTC) Received: from localhost (ovpn-112-170.ams2.redhat.com [10.36.112.170]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7AFA969CB6; Mon, 28 Jun 2021 13:02:03 +0000 (UTC) Date: Thu, 24 Jun 2021 16:12:09 +0100 From: Stefan Hajnoczi To: Xie Yongji Cc: mst@redhat.com, jasowang@redhat.com, sgarzare@redhat.com, parav@nvidia.com, hch@infradead.org, christian.brauner@canonical.com, rdunlap@infradead.org, willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk, bcrl@kvack.org, corbet@lwn.net, mika.penttila@nextfour.com, dan.carpenter@oracle.com, joro@8bytes.org, gregkh@linuxfoundation.org, songmuchun@bytedance.com, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v8 00/10] Introduce VDUSE - vDPA Device in Userspace Message-ID: References: <20210615141331.407-1-xieyongji@bytedance.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Bv+EGssEb3iM6ws2" Content-Disposition: inline In-Reply-To: <20210615141331.407-1-xieyongji@bytedance.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org --Bv+EGssEb3iM6ws2 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jun 15, 2021 at 10:13:21PM +0800, Xie Yongji wrote: > This series introduces a framework that makes it possible to implement > software-emulated vDPA devices in userspace. And to make it simple, the > emulated vDPA device's control path is handled in the kernel and only the > data path is implemented in the userspace. This looks interesting. Unfortunately I don't have enough time to do a full review, but I looked at the documentation and uapi header file to give feedback on the userspace ABI. Stefan --Bv+EGssEb3iM6ws2 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmDUoMkACgkQnKSrs4Gr c8i9mAf/TQBs0m0AVmZZD8+mPJMwfeWR4pxCS+XbMMUr1xqCc7eSxhjMY6H1LNO6 3r+wPajMdIuXEW16AsGRAplQmvTNAdUMjcDnSeS/Y1LBecoKKAnKOYuvRZ1HCaqk Ye3vT+jpDz+X/+miO5LiIenkJB9bouoqAxeNXIXQL5jOMw+pW7R2CD3YUK0k4AMn +X179rAMEOsPG+jyOlWDU1MDbdy1vZEIRQ7MoqrMqsHq/O+AnBXFyZISDwrUttZw HoXWFEeLdyh0mKaniHbsEvSQaAXrG+UBg5xqpYw9RNmbJ7ax+qQ4sUZHbkZlsXXe p++cvUCG1Xk7kOv1o28B3KBn/lyQQA== =Kg3j -----END PGP SIGNATURE----- --Bv+EGssEb3iM6ws2--