From nobody Wed May 15 17:00:18 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1 dmarc=pass fromdomain=citrix.com); dmarc=pass(p=reject dis=none) header.from=citrix.com ARC-Seal: i=2; a=rsa-sha256; t=1694704950; cv=pass; d=zohomail.com; s=zohoarc; b=g6TYPVQ6MibQE3EKz2HtokXxjEketzpHnsJHK4Fd+IKrXEHAu4l3opkeT58iA8cK6/yCzedigl/P2NXm+slk8jvV8b0oyuHEYFyYrDHwpu1tpK88auyrqw5LPz7TZLFTYtY+A2Q91k4gV7DQwVaB3PZIRW3GtMiMWcBDYEaGuWA= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1694704950; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=7VuvDmGAdv8kGvu2/DmpPoCvk4JMkNEUCn56eOzkNXk=; b=T2zyEq76jcMMON7nay4pwVyiDPQeNwqg/B99yw1E/RrFb888AerFtgFJYZR/FOPbLgO+XEdWOVix7Nh1JxhS2dQzVe/KeEhjE7MPTp55nP48bi6Gx/Q2KDwmOXnMrUL3uZ5S0cM/gCDpjt3tebq7C9hnRCB3YbRecZML2yh0bjU= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1 dmarc=pass fromdomain=citrix.com); dmarc=pass header.from= (p=reject dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1694704950134942.3510201636934; Thu, 14 Sep 2023 08:22:30 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.602487.939151 (Exim 4.92) (envelope-from ) id 1qgoAE-0007mi-Ts; Thu, 14 Sep 2023 15:21:54 +0000 Received: by outflank-mailman (output) from mailman id 602487.939151; Thu, 14 Sep 2023 15:21:54 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qgoAE-0007mb-RE; Thu, 14 Sep 2023 15:21:54 +0000 Received: by outflank-mailman (input) for mailman id 602487; Thu, 14 Sep 2023 15:21:52 +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 1qgoAC-0007mU-Oi for xen-devel@lists.xenproject.org; Thu, 14 Sep 2023 15:21:52 +0000 Received: from esa4.hc3370-68.iphmx.com (esa4.hc3370-68.iphmx.com [216.71.155.144]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 6bf98d61-5312-11ee-8787-cb3800f73035; Thu, 14 Sep 2023 17:21:50 +0200 (CEST) Received: from mail-mw2nam10lp2108.outbound.protection.outlook.com (HELO NAM10-MW2-obe.outbound.protection.outlook.com) ([104.47.55.108]) by ob1.hc3370-68.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 14 Sep 2023 11:21:36 -0400 Received: from SJ0PR03MB6423.namprd03.prod.outlook.com (2603:10b6:a03:38d::21) by PH0PR03MB6706.namprd03.prod.outlook.com (2603:10b6:510:111::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6768.34; Thu, 14 Sep 2023 15:21:34 +0000 Received: from SJ0PR03MB6423.namprd03.prod.outlook.com ([fe80::cfc3:da2b:a0d3:e744]) by SJ0PR03MB6423.namprd03.prod.outlook.com ([fe80::cfc3:da2b:a0d3:e744%4]) with mapi id 15.20.6792.020; Thu, 14 Sep 2023 15:21:34 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version 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: 6bf98d61-5312-11ee-8787-cb3800f73035 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1694704910; h=from:to:cc:subject:date:message-id: content-transfer-encoding:mime-version; bh=ApwKoNNOtFUz8QZiqkTK4w6qOreJTxdoKMEyf6BcTzU=; b=LK9mRGNKjeZNr6P3vCtUvbpQObcCcYwRrcpVlLNyERzbRcX+iwwYW4o+ pT0OCZfYnHDOAWdtr7hmixg0TxhVbjLIpTI3HS9YeYAWIhdKhh3/Z7/pp zjiW+Bjc6xHRzhxZJlqna6xoQm6I9vNHbUGglaZvSvBlb+NKa9k0LGRkn s=; X-CSE-ConnectionGUID: HmN5eX0AROiU7u0sUFud/g== X-CSE-MsgGUID: YuIH9o0TQrykJwXFtYfeAg== X-IronPort-RemoteIP: 104.47.55.108 X-IronPort-MID: 125376988 X-IronPort-Reputation: None X-IronPort-Listener: OutboundMail X-IronPort-SenderGroup: RELAY_O365 X-IronPort-MailFlowPolicy: $RELAYED X-ThreatScanner-Verdict: Negative IronPort-Data: A9a23:HW98x6CjgKCzhBVW/w/iw5YqxClBgxIJ4kV8jS/XYbTApG8mhTJVx moZWD+DO/bZYWSheI1+bN/i/EkGv5/Tyd43QQY4rX1jcSlH+JHPbTi7wuUcHAvJd5GeExg3h yk6QoOdRCzhZiaE/n9BCpC48D8kk/nOH+KgYAL9EngZbRd+Tys8gg5Ulec8g4p56fC0GArIs t7pyyHlEAbNNwVcbCRMscpvlDs15K6p4GJB4gRlDRx2lAS2e0c9Xcp3yZ6ZdxMUcqEMdsamS uDKyq2O/2+x13/B3fv8z94X2mVTKlLjFVDmZkh+AsBOsTAbzsAG6Y4pNeJ0VKtio27hc+ada jl6ncfYpQ8BZsUgkQmGOvVSO3kW0aZuoNcrLZUj2CA6IoKvn3bEmp1T4E8K0YIw2uNRXGx+r dUiDzEwMQ3bnN+Y3b78Rbw57igjBJGD0II3nFhFlGmcKMl8BJfJTuPN+MNS2yo2ioZWB/HCa sEFaD1pKhPdfxlIPVRRA5U79AuqriCnL3sE9xTI+Oxuuzi7IA9ZidABNPLPfdOHX4NNl1uwr WPa5WXpRBodMbRzzBLcqC/32bGezXOTtIQ6JaCZ1q9t2GGq3H0QKgIme0eKr/SQhRvrMz5YA wlOksY0loAi+UruQtTjUhmQpH+fogVaS9dWC/c96gyG1uzT+QnxLmoOQyNFadcmnNQrXjFs3 ViM9/v2ARR/vbvTTmiSnop4thu3MCkRaGodPykNSFJd58G5+dljyBXSUtxkDai5yMXvHi39y CyLqy54gKgPickM1OOw+lWvby+Qm6UlhzUdvm3/Nl9JJCsjDGJ5T+REMWTm0Ms= IronPort-HdrOrdr: A9a23:zqqQpKuEUk4fEBGbsNyNLXkP7skDstV00zEX/kB9WHVpm6yj+v xG/c5rsCMc7Qx6ZJhOo7+90cW7L080lqQFg7X5X43DYOCOggLBQL2KhbGI/9SKIVycygcy78 Zdm6gVMqyLMbB55/yKnTVRxbwbsaW6GKPDv5ag8590JzsaD52Jd21Ce36m+ksdfnggObMJUK Cyy+BgvDSadXEefq2AdwI4t7iqnaysqHr+CyR2fiIa1A== X-Talos-CUID: 9a23:Lt5NSmzMTEt8Gn6bTuUuBgU0H+Z4f02F5U33InLnFD5ydZOIRRifrfY= X-Talos-MUID: =?us-ascii?q?9a23=3AFW1NYw16Vk/DbAYO65ghnczO5TUj0rmPKBEKyak?= =?us-ascii?q?/odiHFzNAFSusgjmeTdpy?= X-IronPort-AV: E=Sophos;i="6.02,146,1688443200"; d="scan'208";a="125376988" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oLvj0+BlPy77MHsSeWdkGBami3Z+PpZ1qa9TCHibUuH02Jyq/hme+evcIrBkbQAku4G8JhfM2PNtJlTiNhmEospI9RnXkby+4JNmr0YN8Hvu/QzE1TqoY6CkgVjexxiPM/bIwepS0GCDglV+Wes8ouZ0ZTAjpkohZaEoLm0wyy1fPpUd0IiILqTAPsd38oO5IhSG0yxp7KiZrEL+nfbGKXVFc5tb9OB3E6nj+WJV/B7j1btEryJDmvmgFrKCWpPWjufFMHgyYYKbsDWfx4n0jZNexyUz7JBkMbAwmXaeNClljxphUdgIlyw8TT4V+Cn9bmP75+t3AxbsReaCuTzk6Q== 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=7VuvDmGAdv8kGvu2/DmpPoCvk4JMkNEUCn56eOzkNXk=; b=Yaxl+RRzu38YplQXMS55XecrizghH7pfz5UcDjdTs95LrFDwa9T35++GwcU19ztERdqVJ0Dt6qBPcck+JacJiLeHEoyRuBFlmwW5L9tL68Qa+qUXuJZe3QDOT/a/f/IKCfn+AtSCJ3Ha5Wc0KXSEocdJq34lKVbDzxdk7TnDT7txSpdPuaYsI1cnX6b2jgl7scTLGQxq9LqOY+dYm96LrJTwhkeb2k9SR8TBBHYdqmDrOOpj57tXz+uRXAxpiGFiFYPvgIan8PpsO2Xkh4XNMNTgSq3KCz9GesmsVo4wgbwg/T5gLhYzeIsnWyzXlLFXdqXjDtLf8wwnyTkrqdIp8Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.onmicrosoft.com; s=selector2-citrix-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=7VuvDmGAdv8kGvu2/DmpPoCvk4JMkNEUCn56eOzkNXk=; b=Z13yte965XXAlrsu/+jvf/3cW8MYjEKqZJy6zgQhVZrqBGJ11JcmBsxAFqnPwyp2cN5PGjqtDkwGK5m0RiqWtw4u9+QsJPmWc5AjlH4X1Lgr4RkfBl4TmSCxwCiWMEhQ//HrCsZsZQztZySA1p50POM4kcZPPcOheUTX6iK6YFg= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=citrix.com; From: Roger Pau Monne To: xen-devel@lists.xenproject.org Cc: Roger Pau Monne , Jan Beulich , Andrew Cooper , Wei Liu Subject: [PATCH] x86/shutdown: change default reboot method preference Date: Thu, 14 Sep 2023 17:21:20 +0200 Message-ID: <20230914152120.92696-1-roger.pau@citrix.com> X-Mailer: git-send-email 2.42.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: LO3P265CA0008.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:bb::13) To SJ0PR03MB6423.namprd03.prod.outlook.com (2603:10b6:a03:38d::21) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ0PR03MB6423:EE_|PH0PR03MB6706:EE_ X-MS-Office365-Filtering-Correlation-Id: a526d4be-1b33-4581-2605-08dbb536481c X-LD-Processed: 335836de-42ef-43a2-b145-348c2ee9ca5b,ExtAddr,ExtFwd 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:SJ0PR03MB6423.namprd03.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(376002)(366004)(39860400002)(346002)(136003)(396003)(186009)(451199024)(1800799009)(41300700001)(6506007)(6486002)(6666004)(86362001)(38100700002)(36756003)(82960400001)(2616005)(2906002)(5660300002)(6512007)(6916009)(83380400001)(66556008)(54906003)(26005)(4326008)(478600001)(8936002)(8676002)(1076003)(66946007)(316002)(66476007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?YUk2eXgxU1hLUTIzNHMxNHFrdGhMOFFwQkVPVllFYm9Mb3BrcXNyL1FPck5N?= =?utf-8?B?bjB5WjZUd2lGWVhGL3ROUjcyUjE5V1hqWTE4WUlLeTRuMlBrSklReFMxK3Bt?= =?utf-8?B?RDZ1Q0VualZDVWZxSlRuUlJHM282ckt3TzQveUtWWnlmZnY3YmNTUFZ0U0xs?= =?utf-8?B?Sk9oejdQdndlbmJSM3JCMmdPSmZuZ1I0RzdtUGU0c0Q3YzYwWGdTQi95di9n?= =?utf-8?B?VzJ6YzFwUUtJR2xlZ1ZZYXZUQThYRi9oZkRyeU9yeUFhSThBdVcyWUplNmgv?= =?utf-8?B?TG45N0xidjJPUURGV2RMamdCOHdjRU0zQ1lJRkl1cGdTM2FpUUI3cng1NjdI?= =?utf-8?B?KzRjOHkxTURpRjByeDNyYzV1R3pQVFlyazFZNlVYSWhEZ1h0cHRnVkhWWkg3?= =?utf-8?B?ZHlxU0JZWVpSbk50NWpBM3J0YW1yNVJaaGQxU0t0NUY4ODlxdVRvL0IvbTE5?= =?utf-8?B?Wkp3ZWp0Y1daUWNLMjVnWWhZdFVvdjJqUUNOVm1TY1ZZejJQdVJ6M21XR2tR?= =?utf-8?B?YnhFZExqRHFJc1pmVm9nTlBPZjNiUUQxN3lHY0RzN3hWdFF4SkZaUnRoV1Z0?= =?utf-8?B?TExnaUZLT1NLWnI1RkRUMTM3NGtmV05Hd3RPWTdWdkVhYkZjN0syWnI5aHB4?= =?utf-8?B?ZWVOZ1NXNVFyT2FMNFVobGVlM3FKLzhHUlNickRadWZSTVhHZVIzNTlBYkZj?= =?utf-8?B?QzlMVHFXRVJFRnVsb0prTm1GMkRQV3F0bkNzK2xpVmtSMHIrMlRTNGRDdCtw?= =?utf-8?B?QTlNc2h6UVA4a0hUVHBER01STnV2VXdlbmw1U0hYOGNZWXJ0Z2hPTnpWZWtZ?= =?utf-8?B?MjJIY0JTZjRnbTZyNTNVM2x4VVJPVWZXK0JXOXBOa3F5UDBNNkc5c0FzNVBT?= =?utf-8?B?R2h3Rm1pYjh3Yk5vNGN2anR3Q1lCa2tOZnlCcHJvcXhxTXRJYlplMjFTM3Jv?= =?utf-8?B?R0dSSzRTcGFXSlNWSlJ3UGJYczEyam5oQXRhT0RxRldaMHk2Ylc3UERBL0FS?= =?utf-8?B?ZEpuUlpnUUpnNmhTVTZadWV6MnVJL09xakduZFBTcU1FNFpGakYvS2RMR29p?= =?utf-8?B?QUdXQ254YXV5ZGMyK3lQSFlFY3RvSGhuRlVsZ2R6L1MxelVUaXhjUkZMdTdZ?= =?utf-8?B?b1JRYUNrM1REV0tZVFh5c3JWWUc4K2FGcFp6djBUaG10QTk1aStNaUE3R1Iv?= =?utf-8?B?THkxdGpaTHZTbE5VWTJKd3R2TTg2R0F6SGNLOW9od1haTWNJQnBUQ2lVU0FS?= =?utf-8?B?RmYzVzJnYWNnUGVKZ3FSQW41WTN1UHM4UVhZdGllcUV6MjBHaWpNKzh3VlFa?= =?utf-8?B?MHZRbUtFZFRsUUFJTmdPc2dZd0t4dkd6cFpORVM1ZG5sWGJFdjhub1pITGZ4?= =?utf-8?B?UzBsVldxWEpVQ1lNZTJIeVlHV3NFUVc4aUdmcmJFUjVjUWJzbHJiVjQ2M0hz?= =?utf-8?B?NnB1RlBsNFZyQkMwMmVSZXZ2NzcyODIyZVdFSW43VkhQbnBLMEpzQUYya1Jj?= =?utf-8?B?TS85d0VrVkt3a2VYMnJoRlVDbExhUFJXMjNvRXZqdFVyTldycGYrZkdmQW14?= =?utf-8?B?ODFGZnFGbUpiZ3ZmK2N2ZlNGV0dtMUQrdkZlY05aSFpuemRyQXEzNWs0NVlo?= =?utf-8?B?bEhyMTliNTBhdTVKVW1mTlVJNUkzT0Nxajg3V0hiSjdwd0xtQTJFdEN3MVE4?= =?utf-8?B?S2ZOMnZBdWxGdmZlMTRCMmlIdU5JTFJMWDhVNld0akFCS1FQR1kvOFNmMWxM?= =?utf-8?B?R0J6NlFKRUJiN2dRdEN5TTJ3bXBxbEdkb214RDNHSk5KeDJTUU5FYUY3MUdM?= =?utf-8?B?bkhsOGVWamtyOW5rYXlCTlNDUnBjNjBkQVk0cmFQMUlOci9KbmZ1LzdXTk1R?= =?utf-8?B?R3lOa29GOUtDZFQvRmxQUjVpR1pBSElUU2R3VmNCQzV2QnRha1dZSlZGbjZw?= =?utf-8?B?QlFBa2NQMnkwL3htYUlBcmZWbDYwRk1MZEpxOXd6cFRzQ2lyeEJKVWxjMFhB?= =?utf-8?B?WHdLbVFNd0ZwMytEdmptMnpOUUJZMjBJeDJkekEyNXoxcVRqUXF1UUQyakRx?= =?utf-8?B?bTZpNUsyc1Z5eUh3VXMyV2VjYkVlRFlUL0JiWlVnb3BOZ0ZxUVRrVDdMOU8v?= =?utf-8?B?UFFGNGpwcU53U3pmeVRoa3lBNGI0WkFOcE5DTFRTUHJtemIxdlB0dUd5MHdq?= =?utf-8?B?Vnc9PQ==?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: citrix.com X-MS-Exchange-CrossTenant-Network-Message-Id: a526d4be-1b33-4581-2605-08dbb536481c X-MS-Exchange-CrossTenant-AuthSource: SJ0PR03MB6423.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Sep 2023 15:21:34.7629 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: kgArpH0ZIICxrYXoeIxVTRh5DyLuCd6N3A5POb0vsrpIjQ9Cwu8lxHXyvqKy4vO4F/a+nwr0dR/Bdwhw2RFx9w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR03MB6706 X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1694704952018100001 The current logic to chose the preferred reboot method is based on the mode= Xen has been booted into, so if the box is booted from UEFI, the preferred rebo= ot method will be to use the ResetSystem() run time service call. However, that call seems to be widely untested once the firmware has exited boot services, and quite often leads to a result similar to: Hardware Dom0 shutdown: rebooting machine ----[ Xen-4.18-unstable x86_64 debug=3Dy Tainted: C ]---- CPU: 0 RIP: e008:[<0000000000000017>] 0000000000000017 RFLAGS: 0000000000010202 CONTEXT: hypervisor [...] Xen call trace: [<0000000000000017>] R 0000000000000017 [] S ffff83207eff7b50 [] F machine_restart+0x1da/0x261 [] F apic_wait_icr_idle+0/0x37 [] F smp_call_function_interrupt+0xc7/0xcb [] F call_function_interrupt+0x20/0x34 [] F do_IRQ+0x150/0x6f3 [] F common_interrupt+0x132/0x140 [] F arch/x86/acpi/cpu_idle.c#acpi_idle_do_entry+0x113= /0x129 [] F arch/x86/acpi/cpu_idle.c#acpi_processor_idle+0x3e= b/0x5f7 [] F arch/x86/domain.c#idle_loop+0xec/0xee **************************************** Panic on CPU 0: FATAL TRAP: vector =3D 6 (invalid opcode) **************************************** Which in most cases does lead to a reboot, however that's unreliable. Change the default reboot preference to prefer ACPI over UEFI if available = and not in reduced hardware mode. This is in line to what Linux does, so it's unlikely to cause issues on cur= rent and future hardware, since there's a much higher chance of vendors testing hardware with Linux rather than Xen. I'm not aware of using ACPI reboot causing issues on boxes that do have properly implemented ResetSystem() methods. Signed-off-by: Roger Pau Monn=C3=A9 --- I haven't found anything in the UEFI spec that mandates to use ResetSystem() when booted from UEFI, I've only found: "One method of resetting the platform is through the EFI Runtime Service ResetSystem()." But that's vaguely a recommendation. I've found a lot of boxes that don't reboot properly using ResetSystem(), a= nd I think our default should attempt to make sure Xen reliably reboots on as mu= ch hardware as possible. --- xen/arch/x86/shutdown.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/xen/arch/x86/shutdown.c b/xen/arch/x86/shutdown.c index 7619544d14da..81d8eda64a41 100644 --- a/xen/arch/x86/shutdown.c +++ b/xen/arch/x86/shutdown.c @@ -150,12 +150,12 @@ static void default_reboot_type(void) =20 if ( xen_guest ) reboot_type =3D BOOT_XEN; + else if ( !acpi_disabled && !acpi_gbl_reduced_hardware ) + reboot_type =3D BOOT_ACPI; else if ( efi_enabled(EFI_RS) ) reboot_type =3D BOOT_EFI; - else if ( acpi_disabled ) - reboot_type =3D BOOT_KBD; else - reboot_type =3D BOOT_ACPI; + reboot_type =3D BOOT_KBD; } =20 static int __init cf_check override_reboot(const struct dmi_system_id *d) --=20 2.42.0