From patchwork Sun Mar 12 09:22:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Rui X-Patchwork-Id: 13171174 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 49DACC7618D for ; Sun, 12 Mar 2023 09:29:19 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.508935.783955 (Exim 4.92) (envelope-from ) id 1pbI0i-0006ld-CA; Sun, 12 Mar 2023 09:29:00 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 508935.783955; Sun, 12 Mar 2023 09:29:00 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pbI0i-0006kW-6B; Sun, 12 Mar 2023 09:29:00 +0000 Received: by outflank-mailman (input) for mailman id 508935; Sun, 12 Mar 2023 09:28:58 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1pbHwb-00008O-IM for xen-devel@lists.xenproject.org; Sun, 12 Mar 2023 09:24:45 +0000 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2062f.outbound.protection.outlook.com [2a01:111:f400:7e8a::62f]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id b930664d-c0b7-11ed-87f5-c1b5be75604c; Sun, 12 Mar 2023 10:24:45 +0100 (CET) Received: from MW2PR16CA0059.namprd16.prod.outlook.com (2603:10b6:907:1::36) by DS7PR12MB5861.namprd12.prod.outlook.com (2603:10b6:8:78::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6178.24; Sun, 12 Mar 2023 09:24:25 +0000 Received: from CO1NAM11FT023.eop-nam11.prod.protection.outlook.com (2603:10b6:907:1:cafe::a9) by MW2PR16CA0059.outlook.office365.com (2603:10b6:907:1::36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6178.24 via Frontend Transport; Sun, 12 Mar 2023 09:24:25 +0000 Received: from SATLEXMB04.amd.com (165.204.84.17) by CO1NAM11FT023.mail.protection.outlook.com (10.13.175.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6178.24 via Frontend Transport; Sun, 12 Mar 2023 09:24:25 +0000 Received: from hr-amd.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Sun, 12 Mar 2023 04:24:19 -0500 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: b930664d-c0b7-11ed-87f5-c1b5be75604c ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=MDxG38gN6o3InzwxdsiS0pdsSUyUcpkLYB27zCiDLC7KyDY6cdg4imH3a4gJQjDnCQaJGbU5yxkOCJRW2zjuFwakupl+gxRvFDFoGjtdkvbO2mV/skbhS0/AbnuZJvp1uaP54txefRESK60pJW0RZqddfk6AJlN3fpIy1FAHRjI1EoNAmKmeRU6W2XYC/FX4RyBQXxKDsAs0McnSs12hRALJp1oZRu8x1eseVckFRoCdETisPVd016WxnhQFm+NZEnikOvpLGOg10jOEYuhK2iEZF1kw+hKz5olibFQFb7rlaiULgP+f8v2G7AQ7vT+L1d+dHU/b6KPMaHSbaJQzpw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=ONcZvV/3JhVdOa/JNutn7iJ/bvID7ShJBlvTVgAdRIs=; b=KcaW8FIKuQD4JI4o67xgsUW4hw4Y2z6p6E86AASbgTFWGltm74IjS5ldvizdXeXqflnMyNUZY0iCEInLx7pSHNWO9GWBZ7BL7vv3Gy1RDs9knVkKolJLokB+v1KbnJPu1qBjVJHMWYew3DazipL8o+pB3hlfmypjkTVp7CG/JUmhrp2Yhhahc5C0gLOrctcvqpSft+Jt/v2UKB94md3gU3BKAy5RZOAVm+SNAqw/UiydDVs47RgUYhd3ybf4CFUcI+tXyIvld+RfPrzX26fVrdsse/Fd9RPV8qVUQB41JJwh0wVzvV9fEhKqx16ym1eAXpF7Sf6K0Xjvb3TUXT2aiA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=redhat.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ONcZvV/3JhVdOa/JNutn7iJ/bvID7ShJBlvTVgAdRIs=; b=aRKb5y0/t8LrvwnfB7g8HXEFes1DVbFg2/OPIyt+RXNMf30Y0PB1wAoZ1w02iV4TS41uPJRIHv2y+kIa7KXh8lCplhbz04v04CdSqq65Ry/DrDZFXlOIBM1ALXuK+WDden82Xfcn1mWrxevRdUevLxyfmqciCV99T7Og037QJ+8= X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C From: Huang Rui To: Gerd Hoffmann , "Michael S . Tsirkin" , Stefano Stabellini , Anthony PERARD , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Jan Beulich , Antonio Caggiano , "Dr . David Alan Gilbert" , Robert Beckett , , CC: Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , "Stewart Hildebrand" , Xenia Ragiadakou , Honglei Huang , Julia Zhang , Chen Jiqian , Huang Rui Subject: [RFC QEMU PATCH 15/18] softmmu: Enable qemu ram allocation with fd for Xen Date: Sun, 12 Mar 2023 17:22:41 +0800 Message-ID: <20230312092244.451465-16-ray.huang@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230312092244.451465-1-ray.huang@amd.com> References: <20230312092244.451465-1-ray.huang@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT023:EE_|DS7PR12MB5861:EE_ X-MS-Office365-Filtering-Correlation-Id: 320fbbc4-3ebe-422a-ab2d-08db22db92a0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: XkZ9taQILHR0OZ90dxiZRfwAFgw/6CfL4DrM9E48dgM040CHWp7IozkZrznaCg9GKRAXXUr8XF8K+TWTWaBRhv74DPVKjtknJS+YP3S4LbFv8tdFMj8ufhpUpIs5nBy/RIcFqyYB/U1Bk+LckmLcJfRXkSMKZd/tpkL1Azp32fM2S+r3oRkTRlpXRN8tgl0zKdIPNQpH8xINo/In0dZT2XBG7rb+sMLZQEAFLPZCVQkevGrvEmgsPxGmEfE4r1o/o81TVfRmYSVDACekrhBe04kkgw9w4FF5tMyqrJNp6qRkqTc6qRHEOX+lT06KaXLp2dHTd+wSNo/74LImwAbI496CrUkDoSP0cAXm4q1Fe/ZVhK+Xfr0v0sFa58yTvKzV3mtzjKqk2pkin4d7tADWygQGBShrlSSaQmXCTIwn9qCEbSC8ODmXgP+URxeShkdw6hw/4Xct/GdpxfiX1wBnuMvQkhz1W2Pxe6Ge6vw8E4AmZ7G37stGjV/ONvPq0ru9ZsVNa6uetY+GR3ZOXri+EsDmN7D1wqQA2L+vIRi7in6Y8EX2ZcEPMkY6VdOpPeKOf63Oli4go4+oJJeuWncOWqr9gf6sDJPXAiDi2GFn05QNDu1FfbUt9phihs/vgFRL5S7cAXtXM3AXdgZZRQj0RCToGAb1S0ARcJoN4v4a4YDj0/irzXdNk2gk5dGCwfpMVR+piiloufY/RHmlmfCEiREyFSc7XucXtqKSzZ4hbCspSk+agj4k8YhJEYOpTzUN X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230025)(4636009)(346002)(39860400002)(376002)(396003)(136003)(451199018)(36840700001)(46966006)(40470700004)(5660300002)(7416002)(40460700003)(4744005)(36756003)(83380400001)(47076005)(426003)(478600001)(82310400005)(7696005)(6666004)(1076003)(26005)(2616005)(336012)(16526019)(186003)(921005)(356005)(4326008)(8676002)(70206006)(70586007)(40480700001)(8936002)(41300700001)(86362001)(54906003)(110136005)(36860700001)(316002)(82740400003)(81166007)(2906002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Mar 2023 09:24:25.4680 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 320fbbc4-3ebe-422a-ab2d-08db22db92a0 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT023.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB5861 Venus is requesting the function on Xen as well, enable this path on Xen hypervisor. Signed-off-by: Huang Rui --- softmmu/physmem.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/softmmu/physmem.c b/softmmu/physmem.c index e54561bace..2838dee2f2 100644 --- a/softmmu/physmem.c +++ b/softmmu/physmem.c @@ -2060,11 +2060,6 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr, assert((ram_flags & ~(RAM_SHARED | RAM_PMEM | RAM_NORESERVE | RAM_PROTECTED)) == 0); - if (xen_enabled()) { - error_setg(errp, "-mem-path not supported with Xen"); - return NULL; - } - if (kvm_enabled() && !kvm_has_sync_mmu()) { error_setg(errp, "host lacks kvm mmu notifiers, -mem-path unsupported");