From nobody Mon Feb 9 11:29:37 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1605900160; cv=none; d=zohomail.com; s=zohoarc; b=Zeag7GQtGdGOgai9wlnJudBj0OzWmSpJYQEyQ5ysvojhBlgNTj/Xqq4cFyXhIui/jbJWd09exGBxPF+kQMpglRHf6D8VyrfG7hWJYwi/v6OrByQxQ1DX7iBZnsfi0PCxguXp6Dpr5y2OQ+hfQj3ejTUGLVVZ6TOUvoCAijZjhkQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1605900160; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=CrZ8HzqKH9jvP8Zbz9rlbrynGHpm+xBKQyRidhhC+ks=; b=GpL42rKzvkWj+Owco68ulQXau2cc2jGfxEewRm0wfI2ooZSquOPQiTlSvCrQONajeECJF9QTQLcqUCcjrfdNWhWVF6mnDIIj5brrML5Vu8To5/qTdS8KDpXFovNa5l958rIoXXvCe552p/Y0F8MgXm+AyxYBAyM152IhRAQABuY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1605900160640882.6528087579965; Fri, 20 Nov 2020 11:22:40 -0800 (PST) Received: from localhost ([::1]:40134 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kgBzT-0006vH-Dt for importer@patchew.org; Fri, 20 Nov 2020 14:22:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:42148) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kgBam-0008Cl-BL for qemu-devel@nongnu.org; Fri, 20 Nov 2020 13:57:10 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:54410) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kgBaj-0008Qe-Ro for qemu-devel@nongnu.org; Fri, 20 Nov 2020 13:57:08 -0500 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-160-Fp2Ve2KaObiDeZeZtu8-8A-1; Fri, 20 Nov 2020 13:57:00 -0500 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 5123B10059A4; Fri, 20 Nov 2020 18:56:58 +0000 (UTC) Received: from eperezma.remote.csb (ovpn-112-88.ams2.redhat.com [10.36.112.88]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7FE645C1D5; Fri, 20 Nov 2020 18:56:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605898622; 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=CrZ8HzqKH9jvP8Zbz9rlbrynGHpm+xBKQyRidhhC+ks=; b=JODFRAB5AGFUsX6SEnxeUozM0HOQzKVxDixChQuzJZX5zk5ukmdEr/VjOXafDSMY6UbqTW 3qOf+Zht98YDcncGML6Q1tApaRmOJ9qK5hFVR6knNlb2GVugWv6810U3RLbJd53XIF3ExL fJ/w5hOmT41UJrQ2GR0/Ylp+WP+dgeM= X-MC-Unique: Fp2Ve2KaObiDeZeZtu8-8A-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC PATCH 23/27] vhost: unmap qemu's shadow virtqueues on sw live migration Date: Fri, 20 Nov 2020 19:51:01 +0100 Message-Id: <20201120185105.279030-24-eperezma@redhat.com> In-Reply-To: <20201120185105.279030-1-eperezma@redhat.com> References: <20201120185105.279030-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=63.128.21.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, "Michael S. Tsirkin" , Jason Wang , Daniel Daly , virtualization@lists.linux-foundation.org, Liran Alon , Eli Cohen , Nitin Shrivastav , Alex Barba , Christophe Fontaine , Juan Quintela , Lee Ballard , Lars Ganrot , Rob Miller , Stefano Garzarella , Howard Cai , Parav Pandit , vm , Salil Mehta , Stephen Finucane , Xiao W Wang , Sean Mooney , Stefan Hajnoczi , Jim Harford , Dmytro Kazantsev , Siwei Liu , Harpreet Singh Anand , Michael Lilja , Max Gurtovoy Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Since vhost does not need to access it, it has no sense to keep it mapped. Signed-off-by: Eugenio P=C3=A9rez --- hw/virtio/vhost.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index f640d4edf0..eebfac4455 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1124,6 +1124,7 @@ static int vhost_sw_live_migration_start(struct vhost= _dev *dev) =20 dev->sw_lm_shadow_vq[idx] =3D vhost_sw_lm_shadow_vq(dev, idx); event_notifier_set_handler(&vq->masked_notifier, vhost_handle_call= ); + vhost_virtqueue_memory_unmap(dev, &dev->vqs[idx], true); =20 vhost_vring_write_addr(dev->sw_lm_shadow_vq[idx], &addr); r =3D dev->vhost_ops->vhost_set_vring_addr(dev, &addr); --=20 2.18.4