From nobody Sun Jul 26 10:13:11 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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 Return-Path: Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1783582450516912.7387673444289; Thu, 9 Jul 2026 00:34:10 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1whjG7-0001wW-BR; Thu, 09 Jul 2026 03:33:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1whjG4-0001w1-5w for qemu-devel@nongnu.org; Thu, 09 Jul 2026 03:33:20 -0400 Received: from mailgw.kylinos.cn ([124.126.103.232]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1whjFx-00032B-OW for qemu-devel@nongnu.org; Thu, 09 Jul 2026 03:33:19 -0400 Received: from zgh-vmware-virtual-platform.localdomain [(116.128.244.171)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 126432042; Thu, 09 Jul 2026 15:32:48 +0800 X-UUID: 6280aab47b6811f1aa26b74ffac11d73-20260709 X-CID-O-RULE: Release_Ham X-CID-RULE: EDM_GE969F26 X-CID-O-INFO: VERSION:1.3.12, REQID:53bc9d5c-b045-40e7-9b2f-6cad64eb530f, IP:15, URL:0,TC:0,Content:-5,EDM:-20,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACT ION:release,TS:-10 X-CID-INFO: VERSION:1.3.12, REQID:53bc9d5c-b045-40e7-9b2f-6cad64eb530f, IP:15, UR L:0,TC:0,Content:-5,EDM:-20,RT:0,SF:0,FILE:0,BULK:0,RULE:EDM_GE969F26,ACTI ON:release,TS:-10 X-CID-META: VersionHash:e7bac3a, CLOUDID:dee2072e230bc126d8ca6bed7c38deb5, BulkI D:260709153248B3TY825Z,BulkQuantity:0,Recheck:0,SF:10|66|78|102|123|127|86 5|898,TC:nil,Content:0|15|50,EDM:1,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil,QS :nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,A RC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_AEC X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 6280aab47b6811f1aa26b74ffac11d73-20260709 X-User: zhaoguohan@kylinos.cn From: zhaoguohan@kylinos.cn To: qemu-devel@nongnu.org Cc: "Michael S. Tsirkin" , Stefano Garzarella Subject: [PATCH] hw/virtio/vdpa-dev: pass set_config buffer to vhost backend Date: Thu, 9 Jul 2026 15:32:25 +0800 Message-ID: <20260709073225.2341642-1-zhaoguohan@kylinos.cn> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=lists1p.gnu.org; Received-SPF: pass client-ip=124.126.103.232; envelope-from=zhaoguohan@kylinos.cn; helo=mailgw.kylinos.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1783582454592158500 Content-Type: text/plain; charset="utf-8" From: GuoHan Zhao vhost_vdpa_device_set_config() receives the updated config buffer, but forwards s->config to the vhost backend. Since s->config is refreshed by get_config(), it may contain stale backend state. Pass the supplied config buffer to vhost_dev_set_config() instead. Fixes: b430a2bd2303 ("vdpa: add vdpa-dev support") Signed-off-by: GuoHan Zhao --- hw/virtio/vdpa-dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c index 089a77f4d0b9..6dc684ab096a 100644 --- a/hw/virtio/vdpa-dev.c +++ b/hw/virtio/vdpa-dev.c @@ -212,7 +212,7 @@ vhost_vdpa_device_set_config(VirtIODevice *vdev, const = uint8_t *config) VhostVdpaDevice *s =3D VHOST_VDPA_DEVICE(vdev); int ret; =20 - ret =3D vhost_dev_set_config(&s->dev, s->config, 0, s->config_size, + ret =3D vhost_dev_set_config(&s->dev, config, 0, s->config_size, VHOST_SET_CONFIG_TYPE_FRONTEND); if (ret) { error_report("set device config space failed"); --=20 2.43.0