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 731CDC433EF for ; Mon, 18 Jul 2022 16:39:41 +0000 (UTC) Received: from localhost ([::1]:50220 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oDTmW-0003xT-CK for qemu-devel@archiver.kernel.org; Mon, 18 Jul 2022 12:39:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60070) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oDTdQ-0001cT-1m for qemu-devel@nongnu.org; Mon, 18 Jul 2022 12:30:17 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:44052) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oDTdL-0001z9-BZ for qemu-devel@nongnu.org; Mon, 18 Jul 2022 12:30:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1658161810; 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=TSfUSYpQx8mBUnb1kseF1FZBnmV3Kz0Wr49ta7JUeWE=; b=cEfiMuMy4wNs697W+rEEI6A52CyI/nky3ck9p4PIfSzERhCPDPBy0nUqYDRZqzFPBI1yn8 fsxVyTrbwZpt8MK9pN2kt4ED0BZqgr6gFW3yW1TXALiykhEdxo5NmpofvXr+A3FLwt7CIH fwgycNMKQn+Wy6uu+sASwWNeGhzFb7M= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-310-0SA9xAdiMe2ZtBoYW90zbA-1; Mon, 18 Jul 2022 12:30:07 -0400 X-MC-Unique: 0SA9xAdiMe2ZtBoYW90zbA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 310233804523; Mon, 18 Jul 2022 16:30:05 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.81]) by smtp.corp.redhat.com (Postfix) with ESMTP id 72EFE403D0CA; Mon, 18 Jul 2022 16:30:00 +0000 (UTC) From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Cindy Lu , Harpreet Singh Anand , "Michael S. Tsirkin" , Markus Armbruster , Laurent Vivier , Liuxiangdong , Eric Blake , Paolo Bonzini , Cornelia Huck , Stefan Hajnoczi , Gautam Dawar , "Gonglei (Arei)" , Zhu Lingshan , Parav Pandit , Stefano Garzarella , Eli Cohen , Jason Wang Subject: [PATCH v2 5/5] vdpa: Delete CVQ migration blocker Date: Mon, 18 Jul 2022 18:29:38 +0200 Message-Id: <20220718162938.2938783-6-eperezma@redhat.com> In-Reply-To: <20220718162938.2938783-1-eperezma@redhat.com> References: <20220718162938.2938783-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eperezma@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=ham 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" We can restore the device state in the destination via CVQ now. Remove the migration blocker. Signed-off-by: Eugenio Pérez --- include/hw/virtio/vhost-vdpa.h | 1 - hw/virtio/vhost-vdpa.c | 11 ----------- net/vhost-vdpa.c | 2 -- 3 files changed, 14 deletions(-) diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h index d10a89303e..1111d85643 100644 --- a/include/hw/virtio/vhost-vdpa.h +++ b/include/hw/virtio/vhost-vdpa.h @@ -35,7 +35,6 @@ typedef struct vhost_vdpa { bool shadow_vqs_enabled; /* IOVA mapping used by the Shadow Virtqueue */ VhostIOVATree *iova_tree; - Error *migration_blocker; GPtrArray *shadow_vqs; const VhostShadowVirtqueueOps *shadow_vq_ops; void *shadow_vq_ops_opaque; diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 4458c8d23e..479151bd77 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1023,13 +1023,6 @@ static bool vhost_vdpa_svqs_start(struct vhost_dev *dev) return true; } - if (v->migration_blocker) { - int r = migrate_add_blocker(v->migration_blocker, &err); - if (unlikely(r < 0)) { - goto err_migration_blocker; - } - } - for (i = 0; i < v->shadow_vqs->len; ++i) { VirtQueue *vq = virtio_get_queue(dev->vdev, dev->vq_index + i); VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, i); @@ -1072,7 +1065,6 @@ err: vhost_svq_stop(svq); } -err_migration_blocker: error_reportf_err(err, "Cannot setup SVQ %u: ", i); return false; @@ -1094,9 +1086,6 @@ static bool vhost_vdpa_svqs_stop(struct vhost_dev *dev) } } - if (v->migration_blocker) { - migrate_del_blocker(v->migration_blocker); - } return true; } diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 84e90f067a..82c115bee4 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -573,8 +573,6 @@ static NetClientState *net_vhost_vdpa_init(NetClientState *peer, s->vhost_vdpa.shadow_vq_ops = &vhost_vdpa_net_svq_ops; s->vhost_vdpa.shadow_vq_ops_opaque = s; - error_setg(&s->vhost_vdpa.migration_blocker, - "Migration disabled: vhost-vdpa uses CVQ."); } ret = vhost_vdpa_add(nc, (void *)&s->vhost_vdpa, queue_pair_index, nvqs); if (ret) { -- 2.31.1