From nobody Mon Feb 9 01:16:21 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; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1647674692; cv=none; d=zohomail.com; s=zohoarc; b=eZ/F6H0tLlL+F/T/Aj/0QbWZQOWo3pCO1RzNOuCEQYswGhpbuyfKNxuud7wLHBleKBtsayfdV4Lj+a217xJs6QtiNPLHcnS02ftT+R64TLs5cpuN0GXNmpXFq4gaU1DXO2+BmW1oj8gSxJeNjPbJuNa51WvyKt/TRGec2AXzORY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1647674692; 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:Reply-To:References:Sender:Subject:To; bh=Dr/oCh51ZGtKbyqPpic1W2nJ0ud8L8nxrBOkU9GTVMw=; b=E6wz94vK/Hs4ZqYKfky9SEgSjuc6piCpYB5txaa8DKshBTF8cbdpNheIAySV4ghrghqOSjRmfzk+TfB4I/iYos55Fx2UOSwQ3g5zAH3qE4TPeKg7BIZi78IxwM78TvUAjAjFGGmC83wSoJ3q7b6CJZQUPR9XlyeM4qYtKRQlfX8= ARC-Authentication-Results: i=1; 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; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1647674692024493.709421197971; Sat, 19 Mar 2022 00:24:52 -0700 (PDT) Received: from localhost ([::1]:60522 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nVTSE-0001k1-W0 for importer@patchew.org; Sat, 19 Mar 2022 03:24:51 -0400 Received: from eggs.gnu.org ([209.51.188.92]:45286) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nVTO7-0002Fw-JU for qemu-devel@nongnu.org; Sat, 19 Mar 2022 03:20:35 -0400 Received: from szxga08-in.huawei.com ([45.249.212.255]:3859) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nVTO4-0005EO-37 for qemu-devel@nongnu.org; Sat, 19 Mar 2022 03:20:35 -0400 Received: from dggpeml500025.china.huawei.com (unknown [172.30.72.55]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4KLC2V73x7z1GBvt; Sat, 19 Mar 2022 15:20:18 +0800 (CST) Received: from dggpeml100016.china.huawei.com (7.185.36.216) by dggpeml500025.china.huawei.com (7.185.36.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Sat, 19 Mar 2022 15:20:21 +0800 Received: from DESKTOP-27KDQMV.china.huawei.com (10.174.148.223) by dggpeml100016.china.huawei.com (7.185.36.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Sat, 19 Mar 2022 15:20:21 +0800 To: , , , CC: , , , , , Longpeng Subject: [PATCH v3 08/10] vdpa-dev: implement the get_features interface Date: Sat, 19 Mar 2022 15:20:10 +0800 Message-ID: <20220319072012.525-9-longpeng2@huawei.com> X-Mailer: git-send-email 2.25.0.windows.1 In-Reply-To: <20220319072012.525-1-longpeng2@huawei.com> References: <20220319072012.525-1-longpeng2@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.174.148.223] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpeml100016.china.huawei.com (7.185.36.216) X-CFilter-Loop: Reflected 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=45.249.212.255; envelope-from=longpeng2@huawei.com; helo=szxga08-in.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, 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=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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Reply-to: "Longpeng(Mike)" From: "Longpeng(Mike)" via X-ZM-MESSAGEID: 1647674693934100001 Content-Type: text/plain; charset="utf-8" From: Longpeng Implements the .get_features interface. Signed-off-by: Longpeng --- hw/virtio/vdpa-dev.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c index f28d3ed5f9..9536982061 100644 --- a/hw/virtio/vdpa-dev.c +++ b/hw/virtio/vdpa-dev.c @@ -212,7 +212,14 @@ static uint64_t vhost_vdpa_device_get_features(VirtIOD= evice *vdev, uint64_t features, Error **errp) { - return (uint64_t)-1; + VhostVdpaDevice *s =3D VHOST_VDPA_DEVICE(vdev); + uint64_t backend_features =3D s->dev.features; + + if (!virtio_has_feature(features, VIRTIO_F_IOMMU_PLATFORM)) { + virtio_clear_feature(&backend_features, VIRTIO_F_IOMMU_PLATFORM); + } + + return backend_features; } =20 static void vhost_vdpa_device_set_status(VirtIODevice *vdev, uint8_t statu= s) --=20 2.23.0