From patchwork Wed Mar 2 18:03:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sergio Lopez X-Patchwork-Id: 12766529 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 D0970C433EF for ; Wed, 2 Mar 2022 18:17:38 +0000 (UTC) Received: from localhost ([::1]:54462 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nPTXd-00078o-TD for qemu-devel@archiver.kernel.org; Wed, 02 Mar 2022 13:17:37 -0500 Received: from eggs.gnu.org ([209.51.188.92]:57704) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nPTKn-0007eV-Js for qemu-devel@nongnu.org; Wed, 02 Mar 2022 13:04:21 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:38840) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nPTKl-0006ae-86 for qemu-devel@nongnu.org; Wed, 02 Mar 2022 13:04:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1646244258; 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; bh=s7PNT5w0na4dAC2Znwh5KJuYoihX1QJAjDb7qrJjyeU=; b=hafAaouADEPs6ovKs/wioOgoDnzJ0DArt9z5vUmNmhEWYh/9jQ1FYyx/sNqQBvJzHmCfJH fVggsGjUFBz7HIQg3z771JhZ1LPrQDgFLWByyIKRoPDV7qeFxzff1fZRcAQXFJguv3sDLI Y8OBrMYEal/P6bHe6501ZZCQc1h7Nhk= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-570-VGZrFbNYOr2z_9m6d4X_0A-1; Wed, 02 Mar 2022 13:04:15 -0500 X-MC-Unique: VGZrFbNYOr2z_9m6d4X_0A-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 15907180FD74; Wed, 2 Mar 2022 18:04:13 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.33.36.14]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4056684781; Wed, 2 Mar 2022 18:02:59 +0000 (UTC) From: Sergio Lopez To: qemu-devel@nongnu.org Subject: [PATCH v2 0/3] Enable vhost-user to be used on BSD systems Date: Wed, 2 Mar 2022 19:03:15 +0100 Message-Id: <20220302180318.28893-1-slp@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Received-SPF: pass client-ip=170.10.133.124; envelope-from=slp@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 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_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: , Cc: Elena Ufimtseva , John G Johnson , kvm@vger.kernel.org, David Hildenbrand , Eric Farman , Alex Williamson , Matthew Rosato , qemu-block@nongnu.org, "Michael S. Tsirkin" , Halil Pasic , Christian Borntraeger , vgoyal@redhat.com, Thomas Huth , Sergio Lopez , Richard Henderson , qemu-s390x@nongnu.org, Stefan Hajnoczi , Jagannathan Raman , Kevin Wolf , Cornelia Huck , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Hanna Reitz , Paolo Bonzini , Fam Zheng Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Since QEMU is already able to emulate ioeventfd using pipefd, we're already pretty close to supporting vhost-user on non-Linux systems. This two patches bridge the gap by: 1. Adding a new event_notifier_get_wfd() to return wfd on the places where the peer is expected to write to the notifier. 2. Modifying the build system to it allows enabling vhost-user on BSD. v1->v2: - Drop: "Allow returning EventNotifier's wfd" (Alex Williamson) - Add: "event_notifier: add event_notifier_get_wfd()" (Alex Williamson) - Add: "vhost: use wfd on functions setting vring call fd" - Rename: "Allow building vhost-user in BSD" to "configure, meson: allow enabling vhost-user on all POSIX systems" - Instead of making possible enabling vhost-user on Linux and BSD systems, allow enabling it on all non-Windows platforms. (Paolo) Sergio Lopez (3): event_notifier: add event_notifier_get_wfd() vhost: use wfd on functions setting vring call fd configure, meson: allow enabling vhost-user on all POSIX systems configure | 4 ++-- hw/virtio/vhost.c | 6 +++--- include/qemu/event_notifier.h | 1 + meson.build | 2 +- util/event_notifier-posix.c | 5 +++++ 5 files changed, 12 insertions(+), 6 deletions(-)