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.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 A1F8BC433EF for ; Tue, 26 Jul 2022 07:54:45 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.375083.607387 (Exim 4.92) (envelope-from ) id 1oGFOh-0001mC-EX; Tue, 26 Jul 2022 07:54:31 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 375083.607387; Tue, 26 Jul 2022 07:54:31 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1oGFOh-0001m5-Bn; Tue, 26 Jul 2022 07:54:31 +0000 Received: by outflank-mailman (input) for mailman id 375083; Tue, 26 Jul 2022 07:27:33 +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 1oGEyb-0006kf-1i for xen-devel@lists.xenproject.org; Tue, 26 Jul 2022 07:27:33 +0000 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2048.outbound.protection.outlook.com [40.107.92.48]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 682b3060-0cb4-11ed-bd2d-47488cf2e6aa; Tue, 26 Jul 2022 09:27:31 +0200 (CEST) Received: from DM5PR12MB2504.namprd12.prod.outlook.com (2603:10b6:4:b5::19) by CH2PR12MB4876.namprd12.prod.outlook.com (2603:10b6:610:67::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5458.19; Tue, 26 Jul 2022 07:27:28 +0000 Received: from DM5PR12MB2504.namprd12.prod.outlook.com ([fe80::ec80:e3fd:e3e2:605d]) by DM5PR12MB2504.namprd12.prod.outlook.com ([fe80::ec80:e3fd:e3e2:605d%5]) with mapi id 15.20.5458.024; Tue, 26 Jul 2022 07:27:28 +0000 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: 682b3060-0cb4-11ed-bd2d-47488cf2e6aa ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HTT0akrSmxMhMVNNIPxwAq2i+JWBVs9Dx4ziAPIzlqDomIKejSsHMs8DxPXiQNnYJWeJd31gfmUFHU6huCaEeDY5TK6eqoR8SC83/xrVAe19zZYtOj+5LRG9AIi4OqNdiye1WRBU7WdXgNmqCIjjjkUIsGJvI6ZyvV6zU3X9gYC23aOVYgcSoIux1+YaVXS+8d98matO/AjcSutrQviAoNkynGzUyfhfuv66oywjAzGApV1Tevgjc3XlT6uLrDf1VRQSitinJgg9tgtQ/Ls8Fn4hw63qbWO7/X0bEjttLDpPir484XRtP8OVS3dWlbMZHHAVGbpZb4v6X/05WX9sLw== 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=22UwUfqLHVun0WsIx7T3Dig1cCtbEOkI11uEVVytnBg=; b=ljRouiX+SN1SEX7RRbJPYGhlkaH2idVhX/90yu/LOgnrJIk56RqtgzNzuUhkYBqZF7lzEGq/kuuRfPWecVbKZq3cRS9huc6jqPRo0eSjFwcURwKP2HTH3yaYyxJRetiDNlQRomp/ETl280VlUJwkh5fOm6Onm3fjbKzs0KuK1Bk0lPd2VkcBvyoS2MbpEBHjDsgi4hanQPTG8gpHzAXbHWdCZlwuzUypwDkOwEbp2cLG4Z1FufrPoqyNR+zV24YTlRUYFqJvHx6koTrx4ns+HJPmLGgyuiDOnnOaIlLVFygPGc8kK53LcqUILM92Dw2BT7/oXxY8+MhbqAtrkqz5jw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; 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=22UwUfqLHVun0WsIx7T3Dig1cCtbEOkI11uEVVytnBg=; b=vn7IlPcrRPz7HmSHiFigAqKNsC3fzL2yQUeUk08KKvW+FQ5MLXGjWtI4fkSuQ+FZDS+MKGOtu8/uX+fA3J388kmKVN6ZHbIHzI9rvOP8aaZP41SU803yAaHHJNyOlcXu1hqvl81EzWSGvnHB93XjHRom+TrlzIjLNkFODZ6v+uU= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Date: Tue, 26 Jul 2022 15:27:07 +0800 From: Huang Rui To: anthony.perard@citrix.com, qemu-devel@nongnu.org, xen-devel@lists.xenproject.org Cc: Trigger Huang Subject: Question to mem-path support at QEMU for Xen Message-ID: Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-ClientProxiedBy: SG2PR02CA0015.apcprd02.prod.outlook.com (2603:1096:3:17::27) To DM5PR12MB2504.namprd12.prod.outlook.com (2603:10b6:4:b5::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: b2d6d8da-9007-4d0f-8b0b-08da6ed84b1b X-MS-TrafficTypeDiagnostic: CH2PR12MB4876:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM5PR12MB2504.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(4636009)(136003)(39860400002)(376002)(366004)(396003)(346002)(66556008)(66946007)(8676002)(66476007)(38100700002)(6486002)(4326008)(6512007)(478600001)(26005)(316002)(2906002)(41300700001)(86362001)(6666004)(6506007)(83380400001)(4744005)(8936002)(36756003)(2616005)(5660300002)(186003)(67856001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?/ZGtlzo7NQu79UfERErzBw0ueK0BGgF12+O4DYn3fCWlhyaxUxxMSd/hFbJl?= =?us-ascii?Q?wQxi+O0XWcN8bGq4RB9QlJYki/272puJAN/ti14tDNd1vodCnGDOBZnDYav6?= =?us-ascii?Q?L9PlsFE88eTaU03lS9iMRcbY9Y0IyLHqjoXJvMWfRo9n7tVRtIJd0ixBxj+m?= =?us-ascii?Q?RjTXqOp/lBwtKR06t1/6/3M2gEiJVCWDoyhYQdQJrGvJ61B6kVwprw8F6tuH?= =?us-ascii?Q?NmmY0R/OLuCEbCznaGrkx9oVYpSJI0VBICQB6Q6izJDPi47VfTB01KeV9Ntl?= =?us-ascii?Q?J/8drnHzgBwroXiD12wJUm855U3VyKErom/0LwCzwmV2A+1EU48rsE0X6CzR?= =?us-ascii?Q?NO69aQ9Hjlq4GW0UkUk2hloiIG1z07MFN6+vzc1TK1BR8DYfzQxuPYodnYc+?= =?us-ascii?Q?q4OzG331FZx6FbvkfakmC0Oz8pdEklDhEHWWy2zYLPKHn3COO8vAEBSCTEA8?= =?us-ascii?Q?EYOAvrfnCDoKDy7LHSUcnQrpPSSS9TuoM5mtnPwxQ/vcb64MCx1gWR3kMgej?= =?us-ascii?Q?L58qm6VpTwm0JEFYs91qQA2Wvc0Pw/APQhx2/4mxOlnc+bybb0k79yQqpJPZ?= =?us-ascii?Q?pAYLlw37Q54uCtLyt9TtxBEN223WrWrFjpAicjunDHGrQmYSOFpjitwxAhjR?= =?us-ascii?Q?adL4o835kqjPNIBgf1JkTUnVlm/5XWOeHsZWUEjU5r3PZxFuMW0f5HSJrXDP?= =?us-ascii?Q?7hD5thWw/fr9a7CDFpydwu/j/WAgqnAVhXpJ2wDHNdMftEqYoj6FG0TuiIbR?= =?us-ascii?Q?N1mG2EWTf8VTEAXwYqEkLMdsjfSAf6XBH4HpPIHDQseBfH858jU4zx8kFrPU?= =?us-ascii?Q?5S2MhTHWGcOAN2VpQxROMbaB04I4iJabfhwaimH+W5h2C89P73Ba2dHDDzjE?= =?us-ascii?Q?2RcPYs2FE16NP6Z2Nnc3BKi2lPxbbmy9dTkPy8ijeojKcIW2PVI0N/ATcJNe?= =?us-ascii?Q?BeMQNjeVXHsZYV37rUKGLi5vxpRFh0qo051hH5rx/EGuZuuyfAuP6E5nZJiZ?= =?us-ascii?Q?BCe2QcinUJPVBbkxiZparZ3XMcBkxR7MAliI0U7aEBJB2P7/RifWm7I280uW?= =?us-ascii?Q?9TB3nFEHnxAIUFwXr2KHm7D2jEEMeAFeLPoXAQDYI5kloCtRHfkZWyoLlnkJ?= =?us-ascii?Q?a3zSFgVn5LluEh0FfFtoRJ/3QOj402F7OKCGMIVUPwYYsDje/QcCSkxSIQrw?= =?us-ascii?Q?F6ALixn78QGU6gvgWsiGrpynyBM97I1pOW+NbdVex1uP94pIlY1hC/BtQ3LW?= =?us-ascii?Q?qWbcgw2czHYFKZ2tcfPzWPEWMUZxKiHZhTyzZF5VbjIlQBDVUWmYtlefmeNB?= =?us-ascii?Q?jBCKlB5/Xt6vK+mDMe4ivExBeKLwyaYYRq4UWYAyu/zmWWzIzRs/Se6TzyrV?= =?us-ascii?Q?9vbGlLjgs4Go/zm3BnNT+3B/aYl6w0SsbuDcmqkn2eD+/KawfPEBFnyxoi++?= =?us-ascii?Q?v1P1Xz5DiIUIC8gzM5jqnJJlBHjfL8cZLREXxmboEkVQNK3VZ5xTrwwwp5rh?= =?us-ascii?Q?myS0WnUSaJM4eHeFxEVUO8FmDw4W+YpuBTcCtWbi5I5BvBUr63vpdgqnL3Qi?= =?us-ascii?Q?cDPy+CL6ADg7Fytsb+eNHw6NM0juGvSnNIo9kDhb?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: b2d6d8da-9007-4d0f-8b0b-08da6ed84b1b X-MS-Exchange-CrossTenant-AuthSource: DM5PR12MB2504.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jul 2022 07:27:27.9683 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ENv+5gf61BqVaY1rdExOwyOUAkRHY6kmNvTgwCQBZ+CHsIiYLW+MspTaVpx9BD5aIQGDcJKyccMa2MCdrWdRgQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4876 Hi Anthony and other Qemu/Xen guys, We are trying to enable venus on Xen virtualization platform. And we would like to use the backend memory with memory-backend-memfd,id=mem1,size=4G options on QEMU, however, the QEMU will tell us the "-mem-path" is not supported with Xen. I verified the same function on KVM. qemu-system-i386: -mem-path not supported with Xen So may I know whether Xen has any limitation that support memory-backend-memfd in QEMU or just implementation is not done yet? Looking forward to your reply! Thanks a lot, Ray