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 4B018C4167B for ; Mon, 6 Nov 2023 07:28:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231143AbjKFH2i (ORCPT ); Mon, 6 Nov 2023 02:28:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229881AbjKFH2g (ORCPT ); Mon, 6 Nov 2023 02:28:36 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9BE4112 for ; Sun, 5 Nov 2023 23:27:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1699255672; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=43URkpYtRBGE0OYmyASXAaiR9gWD2J5xkyb/eiFUiBk=; b=RsLu0LKqlCFfQcEsvKKaKTbNgRvqrpVw3W3Ox8fFDgPbhqWRMrQdLeuAGAbBmT2YocJHuH P7FZ+LH6jVcu2abILAPooko8H42TcRLnApp7j2Bmnk1Kx7/84bwJUeKLKKYUuRg4GDLUXk LIoTdZSWSgsvuVALSteJRUSpQDNf9wU= Received: from mail-lf1-f72.google.com (mail-lf1-f72.google.com [209.85.167.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-118-Uw46tjn9O-CbqAbmUszfSA-1; Mon, 06 Nov 2023 02:27:51 -0500 X-MC-Unique: Uw46tjn9O-CbqAbmUszfSA-1 Received: by mail-lf1-f72.google.com with SMTP id 2adb3069b0e04-5079a8c68c6so3858153e87.1 for ; Sun, 05 Nov 2023 23:27:50 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699255669; x=1699860469; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=43URkpYtRBGE0OYmyASXAaiR9gWD2J5xkyb/eiFUiBk=; b=SMnzqBN6rdzVgnk8j5hEY7+pdx4jPmQHJY6/hktxglZa4SFFyjXcCBFIEJ4vItZ6ow W0vC5FSPQ4NeudFEX7P1r9HpniuDyflOvWuKtkd/5iFBKVTVI7hdmpU5EfDt63e+KiTu 0rH/JJQ6MK/vYtDAOc1dFT0i4iEYKbGvvtvZiPzRI47GQk8QinmAOzJRfn6vRdOsGlyB SeUxrPg3f4R/5+C/m+eqGAQ01aTJJSnLoB8cq95wPnBqDqHH98+BXSPoARXzYHyaRdnj Zay3TmTp1oluLmPISAlJbk9pwgSh2S/+xdMjRiC+PCTxzfFlLmytx2OIvCdjs1UQdyQM R2Rw== X-Gm-Message-State: AOJu0YyYpADm5DGOkpnHStZAx0GOVwpTLdUZxZweamhBsM6OVdym6Gfx arZergWhVVT6dEM573I9gjh4xmM8kpB7eEX9Bu/ImEIiPt87RD9+SkhrYmsZthuUnnXyDwu0VHJ m1v9onNJzmsdc0qG7IyPt12q4yZ2lsjrIXSPc7BEN1lY4rKczWC8= X-Received: by 2002:a19:e011:0:b0:503:fc2:bfaf with SMTP id x17-20020a19e011000000b005030fc2bfafmr19235615lfg.33.1699255669566; Sun, 05 Nov 2023 23:27:49 -0800 (PST) X-Google-Smtp-Source: AGHT+IGeuHCmPxbI1vFCSmuwsvTXlqbF/Vv6BpaewiH5OFPHTfdUlAVBDe19efaIgP47YNORg4NZHGPl5Yde3mGZKnw= X-Received: by 2002:a19:e011:0:b0:503:fc2:bfaf with SMTP id x17-20020a19e011000000b005030fc2bfafmr19235608lfg.33.1699255669287; Sun, 05 Nov 2023 23:27:49 -0800 (PST) MIME-Version: 1.0 References: <20231103171641.1703146-1-lulu@redhat.com> <20231103171641.1703146-4-lulu@redhat.com> In-Reply-To: <20231103171641.1703146-4-lulu@redhat.com> From: Jason Wang Date: Mon, 6 Nov 2023 15:27:38 +0800 Message-ID: Subject: Re: [RFC v1 3/8] vhost: Add 3 new uapi to support iommufd To: Cindy Lu Cc: mst@redhat.com, yi.l.liu@intel.com, jgg@nvidia.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Nov 4, 2023 at 1:17=E2=80=AFAM Cindy Lu wrote: > > VHOST_VDPA_SET_IOMMU_FD: bind the device to iommufd device > > VDPA_DEVICE_ATTACH_IOMMUFD_AS: Attach a vdpa device to an iommufd > address space specified by IOAS id. > > VDPA_DEVICE_DETACH_IOMMUFD_AS: Detach a vdpa device > from the iommufd address space > > Signed-off-by: Cindy Lu As discussed in the previous version, any reason/advantages of this compared to just having a single VDPA_DEVICE_ATTACH_IOMMUFD_AS? Thanks