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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 339DAC433F5 for ; Fri, 27 May 2022 16:21:42 +0000 (UTC) Received: from localhost ([::1]:44992 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nucib-0006vi-5N for qemu-devel@archiver.kernel.org; Fri, 27 May 2022 12:21:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41206) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nucCW-0002zm-MC for qemu-devel@nongnu.org; Fri, 27 May 2022 11:48:32 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:37122) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nucCU-0004gE-Pl for qemu-devel@nongnu.org; Fri, 27 May 2022 11:48:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1653666501; 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=ptFKN07WzaZSkB75ssKmvz0ncxq0DmC4gK9vbQcWX08=; b=A2AEQwF7hl0GlvmeKvM3N2G7Oe/te4rIHTQl/YLiXO1x6SgYKx1jCOquXKqkGQ4feftLMO ldFD13QnOB+9rjbxNba+txsNoql1DERoVU2Qz6LLSj8wG9R6ZGQn9TtJ6NafMq8ZGnId1m cs1g/vTcddhUziXNsOHLzj8kdHD4EJY= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-342-5JfnatFlN7OYXP6x7dxRCw-1; Fri, 27 May 2022 11:48:14 -0400 X-MC-Unique: 5JfnatFlN7OYXP6x7dxRCw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id ED4CB85A5BC; Fri, 27 May 2022 15:48:13 +0000 (UTC) Received: from redhat.com (unknown [10.39.194.169]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 0D4F48287E; Fri, 27 May 2022 15:48:10 +0000 (UTC) Date: Fri, 27 May 2022 17:48:07 +0200 From: Kevin Wolf To: Xie Yongji Cc: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, mreitz@redhat.com, mlureau@redhat.com, jsnow@redhat.com, eblake@redhat.com, Coiby.Xu@gmail.com, hreitz@redhat.com, qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: Re: [PATCH v6 0/8] Support exporting BDSs via VDUSE Message-ID: References: <20220523084611.91-1-xieyongji@bytedance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220523084611.91-1-xieyongji@bytedance.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 Received-SPF: pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Am 23.05.2022 um 10:46 hat Xie Yongji geschrieben: > Hi all, > > Last few months ago, VDUSE (vDPA Device in Userspace) [1] has > been merged into Linux kernel as a framework that make it > possible to emulate a vDPA device in userspace. This series > aimed at implementing a VDUSE block backend based on the > qemu-storage-daemon infrastructure. > > To support that, we firstly introduce a VDUSE library as a > subproject (like what libvhost-user does) to help implementing > VDUSE backends in QEMU. Then a VDUSE block export is implemented > based on this library. At last, we add resize and reconnect support > to the VDUSE block export and VDUSE library. > > Now this series is based on Stefan's patch [2]. And since we don't > support vdpa-blk in QEMU currently, the VM case is tested with my > previous patchset [3]. > > [1] https://www.kernel.org/doc/html/latest/userspace-api/vduse.html > [2] https://lore.kernel.org/all/20220518130945.2657905-1-stefanha@redhat.com/ > [3] https://www.mail-archive.com/qemu-devel@nongnu.org/msg797569.html Thanks, applied to the block branch. Kevin