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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,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 647AEC11F64 for ; Tue, 29 Jun 2021 03:15:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4735A61CDA for ; Tue, 29 Jun 2021 03:15:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231970AbhF2DRv (ORCPT ); Mon, 28 Jun 2021 23:17:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231680AbhF2DRt (ORCPT ); Mon, 28 Jun 2021 23:17:49 -0400 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B0CB1C061767 for ; Mon, 28 Jun 2021 20:15:21 -0700 (PDT) Received: by mail-ej1-x635.google.com with SMTP id bg14so33647872ejb.9 for ; Mon, 28 Jun 2021 20:15:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KSP9MnxtnkwaBaqFffC1/G5CwF9yGzg9W9Q6U/eCMio=; b=trz9EZjpzzDlN+qvVOvq7umsssDF2IXsOdePgArPhNfrFD+HeoNYw9g9xzyAhb8MKk mmpCQPnoQeSyx8U2dU/uHBBXJuxYujR+dpmYpf3Zajl9fTas6kctAJkBbjgRzfivg2OB yj1qDXf69FF6HUXTycchd0vTemH3qRAeHyMtHGpVClkd54HdkzVoehXk+f8vp1TZ2hPu 9dQqlEUIafRa41+2OmLox/HCo9ezTTkzCk0hQDZRSKY6n10tM+7jdPeJBHXWWcYvV132 Wwywql7RSG4MI6Ib23cSV71szhrFJRImsg2bQDJXmui0IrqcBxD8391lxzBVfzYZTccD E6Sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KSP9MnxtnkwaBaqFffC1/G5CwF9yGzg9W9Q6U/eCMio=; b=H6zW+JbhMU7ysPQv9VZx4HBC707y67OtdTuazpfk0VOf+o+x/ySFAPp5rSvrQUqFZd TvyirnKPVQGI97wPBql9iKdym6JlzU0fthoQOrq/OKlz2E7RADpo2MuhdSv30eF1dacW 6e/FIuoL5kPtOkuaqeXajmLq0Q+yXZKuavOKUFNs5sDyiwTzOoE3uaKCRc6AszChpRn5 8K2X5xqiXXcYs0Cwbr9Ohfmj6pveLHyiRdHfQkCarhTLQa/Hup48knelEi0NeeMXUyRs Z9R485hgUq6Q8bCbmdnizeAbZ3plw1DgnIEt5KR8ROb84JEm4rX9AeSvpMwYW6u5ofLd GXYg== X-Gm-Message-State: AOAM533mdsGntZ8xNIbf4dbRq8lisxidelCb5RqeepgzVeU94xGjX4XL VncSVgCQNtKbmIZ10NOx3o0rVFcxN6oz9s+ESjiU X-Google-Smtp-Source: ABdhPJygNTq8Wi5J8lQUEA69a0KDIXQbdUPLuUv1X7DgdTJUivR6hqFwxAoue0nTaAaGcU1j++UWvcm4NWY1mqaUomU= X-Received: by 2002:a17:906:3c4a:: with SMTP id i10mr26893189ejg.372.1624936520374; Mon, 28 Jun 2021 20:15:20 -0700 (PDT) MIME-Version: 1.0 References: <20210615141331.407-1-xieyongji@bytedance.com> In-Reply-To: From: Yongji Xie Date: Tue, 29 Jun 2021 11:15:09 +0800 Message-ID: Subject: Re: Re: [PATCH v8 00/10] Introduce VDUSE - vDPA Device in Userspace To: Stefan Hajnoczi Cc: "Michael S. Tsirkin" , Jason Wang , Stefano Garzarella , Parav Pandit , Christoph Hellwig , Christian Brauner , Randy Dunlap , Matthew Wilcox , Al Viro , Jens Axboe , bcrl@kvack.org, Jonathan Corbet , =?UTF-8?Q?Mika_Penttil=C3=A4?= , Dan Carpenter , joro@8bytes.org, Greg KH , songmuchun@bytedance.com, virtualization , netdev@vger.kernel.org, kvm , linux-fsdevel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 28, 2021 at 9:02 PM Stefan Hajnoczi wrote: > > 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. > OK. Thanks for your comments. It's helpful! Thanks, Yongji 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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 47340C11F64 for ; Tue, 29 Jun 2021 03:15:28 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE6A461D1F for ; Tue, 29 Jun 2021 03:15:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE6A461D1F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=bytedance.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 7FA42402C4; Tue, 29 Jun 2021 03:15:27 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t-kWW3g-BfMf; Tue, 29 Jun 2021 03:15:26 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTPS id 5EE4A4029B; Tue, 29 Jun 2021 03:15:26 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 0FC66C001D; Tue, 29 Jun 2021 03:15:26 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id CFCE3C000E for ; Tue, 29 Jun 2021 03:15:24 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 8491540290 for ; Tue, 29 Jun 2021 03:15:23 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp2.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=bytedance-com.20150623.gappssmtp.com Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id iPpy5zs9wWMj for ; Tue, 29 Jun 2021 03:15:22 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.8.0 Received: from mail-ej1-x636.google.com (mail-ej1-x636.google.com [IPv6:2a00:1450:4864:20::636]) by smtp2.osuosl.org (Postfix) with ESMTPS id 4A5E140276 for ; Tue, 29 Jun 2021 03:15:22 +0000 (UTC) Received: by mail-ej1-x636.google.com with SMTP id l24so4390170ejq.11 for ; Mon, 28 Jun 2021 20:15:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=KSP9MnxtnkwaBaqFffC1/G5CwF9yGzg9W9Q6U/eCMio=; b=trz9EZjpzzDlN+qvVOvq7umsssDF2IXsOdePgArPhNfrFD+HeoNYw9g9xzyAhb8MKk mmpCQPnoQeSyx8U2dU/uHBBXJuxYujR+dpmYpf3Zajl9fTas6kctAJkBbjgRzfivg2OB yj1qDXf69FF6HUXTycchd0vTemH3qRAeHyMtHGpVClkd54HdkzVoehXk+f8vp1TZ2hPu 9dQqlEUIafRa41+2OmLox/HCo9ezTTkzCk0hQDZRSKY6n10tM+7jdPeJBHXWWcYvV132 Wwywql7RSG4MI6Ib23cSV71szhrFJRImsg2bQDJXmui0IrqcBxD8391lxzBVfzYZTccD E6Sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KSP9MnxtnkwaBaqFffC1/G5CwF9yGzg9W9Q6U/eCMio=; b=mbxOxD0i5qLwIbh9vL3aPNLhO4JNo+itOfyFsH3PR87q8XEik3/sqrGQ9TvTmjJA8K /dOfNuoF9Eo4woSvi6QNiT4ypofhwxNM6WJ63VsgG+5U4/f7d5ARSyLiPEIXJiPP8bdx HxwJunnciteRt2OR9ZqyQM6K94Y5vKPNyYXBubAzMF/4mAL9sp1f0XTQcqoCthcvgpMq HXMGhmEhckNXbDOi93Z1DycvEanerriY7izAPgb7cxVM0ThkcZiMgTwqZVm50TjEuFh3 85a6TftGkoPw4Oku853mWp0im1LqFwU48oDKF1oCmlvCIR2cs3+nM5Qk/dwNOsvpNLgc Ph2g== X-Gm-Message-State: AOAM5331Y3ur0jyTZCgpJstXhyDwJSTbWL1dk7hWZ0LPqjlUMCqGyIuu /HHyBa9dfcc2mAb3ZkwNa0XgfkxmmFHC9paqbwxP X-Google-Smtp-Source: ABdhPJygNTq8Wi5J8lQUEA69a0KDIXQbdUPLuUv1X7DgdTJUivR6hqFwxAoue0nTaAaGcU1j++UWvcm4NWY1mqaUomU= X-Received: by 2002:a17:906:3c4a:: with SMTP id i10mr26893189ejg.372.1624936520374; Mon, 28 Jun 2021 20:15:20 -0700 (PDT) MIME-Version: 1.0 References: <20210615141331.407-1-xieyongji@bytedance.com> In-Reply-To: From: Yongji Xie Date: Tue, 29 Jun 2021 11:15:09 +0800 Message-ID: Subject: Re: Re: [PATCH v8 00/10] Introduce VDUSE - vDPA Device in Userspace To: Stefan Hajnoczi Cc: kvm , "Michael S. Tsirkin" , Jason Wang , virtualization , Christian Brauner , Jonathan Corbet , Matthew Wilcox , Christoph Hellwig , Dan Carpenter , Stefano Garzarella , Al Viro , songmuchun@bytedance.com, Jens Axboe , Greg KH , Randy Dunlap , linux-kernel , iommu@lists.linux-foundation.org, bcrl@kvack.org, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, =?UTF-8?Q?Mika_Penttil=C3=A4?= X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Mon, Jun 28, 2021 at 9:02 PM Stefan Hajnoczi wrote: > > 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. > OK. Thanks for your comments. It's helpful! Thanks, Yongji _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu