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GET /api/patches/2194228/?format=api
{ "id": 2194228, "url": "http://patchwork.ozlabs.org/api/patches/2194228/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260207134728.1495932-11-lulu@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260207134728.1495932-11-lulu@redhat.com>", "list_archive_url": null, "date": "2026-02-07T13:47:27", "name": "[11/12] virtio-net: re-apply vnet_hdr state after virtio_load", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "ff2594c94e0d72c7737116be531e6971b7f22474", "submitter": { "id": 78960, "url": "http://patchwork.ozlabs.org/api/people/78960/?format=api", "name": "Cindy Lu", "email": "lulu@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260207134728.1495932-11-lulu@redhat.com/mbox/", "series": [ { "id": 491379, "url": "http://patchwork.ozlabs.org/api/series/491379/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=491379", "date": "2026-02-07T13:47:17", "name": "[01/12] net: introduce read_poll/write_poll", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/491379/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2194228/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2194228/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=EavbAWgM;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4f7XPr33VZz1xvr\n\tfor <incoming@patchwork.ozlabs.org>; Sun, 08 Feb 2026 00:49:36 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1voign-0004QV-2y; Sat, 07 Feb 2026 08:49:33 -0500", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <lulu@redhat.com>) id 1voiga-0003t1-2i\n for qemu-devel@nongnu.org; Sat, 07 Feb 2026 08:49:23 -0500", "from us-smtp-delivery-124.mimecast.com ([170.10.129.124])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <lulu@redhat.com>) id 1voigX-0003IV-4f\n for qemu-devel@nongnu.org; Sat, 07 Feb 2026 08:49:19 -0500", "from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com\n (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by\n relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n cipher=TLS_AES_256_GCM_SHA384) id us-mta-323-2r4o3HLJO-ux3JRUtAMImA-1; Sat,\n 07 Feb 2026 08:49:12 -0500", "from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com\n (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS\n id 7B3141800464; Sat, 7 Feb 2026 13:49:11 +0000 (UTC)", "from S2.redhat.com (unknown [10.72.112.15])\n by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP\n id 45D8C18004AD; Sat, 7 Feb 2026 13:49:07 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1770472156;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=hgR+tk+UJ3NFFcdM8r6q6wQSuI+asu9PhIQYUGAd+/o=;\n b=EavbAWgM0XwhWBRrxtAiVtX5jduWGF5GqyAHbKG5c88B3WntCGudUrCpEdc8L1wbrkmlfQ\n IS3f71JWa+A5ydofEBtDpXsmfFPNVqvjbY6mhEfUXRAthhUq68hxvyoNQV5LCt5WdtpbA1\n zpezsGLGTmHYfQfEcYBQ7dZ6GVWeJmY=", "X-MC-Unique": "2r4o3HLJO-ux3JRUtAMImA-1", "X-Mimecast-MFC-AGG-ID": "2r4o3HLJO-ux3JRUtAMImA_1770472151", "From": "Cindy Lu <lulu@redhat.com>", "To": "lulu@redhat.com, mst@redhat.com, jasowang@redhat.com, zhangckid@gmail.com,\n lizhijian@fujitsu.com, qemu-devel@nongnu.org", "Subject": "[PATCH 11/12] virtio-net: re-apply vnet_hdr state after virtio_load", "Date": "Sat, 7 Feb 2026 21:47:27 +0800", "Message-ID": "<20260207134728.1495932-11-lulu@redhat.com>", "In-Reply-To": "<20260207134728.1495932-1-lulu@redhat.com>", "References": "<20260207134728.1495932-1-lulu@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.93", "Received-SPF": "pass client-ip=170.10.129.124; envelope-from=lulu@redhat.com;\n 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,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "virtio_load() restores guest_features after vmstate post_load hooks. Re-apply\nvnet_hdr related state in virtio_net_post_load_virtio() so backend header\nlengths match the migrated feature set (important for netfilter pipelines).\n\nSigned-off-by: Cindy Lu <lulu@redhat.com>\n---\n hw/net/virtio-net.c | 15 +++++++++++++++\n 1 file changed, 15 insertions(+)", "diff": "diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c\nindex d6d2188863..125aa0108d 100644\n--- a/hw/net/virtio-net.c\n+++ b/hw/net/virtio-net.c\n@@ -3282,6 +3282,21 @@ static int virtio_net_post_load_device(void *opaque, int version_id)\n static int virtio_net_post_load_virtio(VirtIODevice *vdev)\n {\n VirtIONet *n = VIRTIO_NET(vdev);\n+ bool has_tunnel_hdr = virtio_has_tunnel_hdr(vdev->guest_features_ex);\n+\n+ /*\n+ * virtio_load() restores guest_features after vmstate post_load hooks.\n+ * Re-apply vnet_hdr related state here so the backend vnet_hdr_len and\n+ * n->host_hdr_len match the migrated feature set (important for receiving\n+ * packets from netfilters like redirector/buffer during COLO/migration).\n+ */\n+ peer_test_vnet_hdr(n);\n+ virtio_net_set_mrg_rx_bufs(n, n->mergeable_rx_bufs,\n+ virtio_vdev_has_feature(vdev,\n+ VIRTIO_F_VERSION_1),\n+ virtio_vdev_has_feature(vdev,\n+ VIRTIO_NET_F_HASH_REPORT),\n+ has_tunnel_hdr);\n /*\n * The actual needed state is now in saved_guest_offloads,\n * see virtio_net_post_load_device for detail.\n", "prefixes": [ "11/12" ] }