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 X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7808FC432BE for ; Wed, 1 Sep 2021 15:52:37 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 274A361027 for ; Wed, 1 Sep 2021 15:52:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 274A361027 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.176537.321227 (Exim 4.92) (envelope-from ) id 1mLSWx-00075i-Md; Wed, 01 Sep 2021 15:52:03 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 176537.321227; Wed, 01 Sep 2021 15:52:03 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mLSWx-00075b-JX; Wed, 01 Sep 2021 15:52:03 +0000 Received: by outflank-mailman (input) for mailman id 176537; Wed, 01 Sep 2021 15:52:03 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mLSWx-00075V-4K for xen-devel@lists.xenproject.org; Wed, 01 Sep 2021 15:52:03 +0000 Received: from de-smtp-delivery-102.mimecast.com (unknown [194.104.109.102]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 1642fdd1-e56f-4bcf-ae0a-0e39a73f0556; Wed, 01 Sep 2021 15:52:01 +0000 (UTC) Received: from EUR01-VE1-obe.outbound.protection.outlook.com (mail-ve1eur01lp2058.outbound.protection.outlook.com [104.47.1.58]) (Using TLS) by relay.mimecast.com with ESMTP id de-mta-29-5N_FybicO5GK4fwW33LkwA-2; Wed, 01 Sep 2021 17:51:59 +0200 Received: from VI1PR04MB5600.eurprd04.prod.outlook.com (2603:10a6:803:e7::16) by VI1PR04MB2960.eurprd04.prod.outlook.com (2603:10a6:802:9::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4457.23; Wed, 1 Sep 2021 15:51:56 +0000 Received: from VI1PR04MB5600.eurprd04.prod.outlook.com ([fe80::4d37:ec64:4e90:b16b]) by VI1PR04MB5600.eurprd04.prod.outlook.com ([fe80::4d37:ec64:4e90:b16b%7]) with mapi id 15.20.4478.019; Wed, 1 Sep 2021 15:51:56 +0000 Received: from [10.156.60.236] (37.24.206.209) by PR3PR09CA0017.eurprd09.prod.outlook.com (2603:10a6:102:b7::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4478.19 via Frontend Transport; Wed, 1 Sep 2021 15:51:56 +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: 1642fdd1-e56f-4bcf-ae0a-0e39a73f0556 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=mimecast20200619; t=1630511520; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=yDUxKs17CBRyEk1FI7eJvE3umkbbk3O/fEeF6QKW0cg=; b=EHjzOGsFJpi3XeMDuHI20cTqO3YUZtuBXbcMePnicEdbL3LV3F3TnG8FKblI6V9GU25sVQ dMhAn1ufylATYLbhnaAFNuuSt6+jjppRBJMU7gsH3ON01J/WPHdjF77S2+1LW3PcW5S9+j E3HPHQyKLpsX+3ybeb8dGiTaOhCRC9E= X-MC-Unique: 5N_FybicO5GK4fwW33LkwA-2 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Gk8N2VnkqjKffSgjxCLbiPTQs40owmPlLJsXp4oEjqm6t6KOtI0hNgdNerZV25Y0hzGetzG9WmqNhtzg7zzGJPMSjJkKc0TLKCGaTK6EY+zuTbA4/s5H3kwpLDkKwA9XvrJe3+37UGszrkDMZ5SezPaT6OukqhKTr3PvToA/E9HXE13iXeqVdnejRGQY0007jKjKX7FqW8SyMOaXcO7Al4oMF5q9P94bgvdsJRQS8HMs1fgjsjv86oS1zOYiNfKqiOdqKiwUETVIfpO8ECLoPGqxgGOB5py6xWtnrDTAAwPSy6GhT5l3GwVXgQd1N6jdIWo51iiW3NMb6CuFixCFhQ== 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-SenderADCheck; bh=yDUxKs17CBRyEk1FI7eJvE3umkbbk3O/fEeF6QKW0cg=; b=H0gxnNBCyS13nzEsQDbay45/XVyIxd2pcUBQF2pl6UzgbIYFE9mOD2RyISD6H69siqDZ6Am0957f8AkdTpUV757DCOnb7jyad4I4nYs9Ae+0KcX97DhG9re6a1ijJ+5aAFvAqWyjIzXuCp1j14vRbXfUV7/dze1JQ4YToziES1bri6cGizGQJsP5a1ftSlNuHaQC+rZ37h9J92VgKVwg1rd081zOLtiQGwZBdc30a6K3rc7z9+PfW0uBgNYwSGiZ4sB9VTHtqJIgoMCRZqYQVyS/IOxpLHO8BgojhThsfUX9H+oHdFMJYXvO0CwFMWzdQArj5al8gTG2nUYU1fX52Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=suse.com; dmarc=pass action=none header.from=suse.com; dkim=pass header.d=suse.com; arc=none Authentication-Results: citrix.com; dkim=none (message not signed) header.d=none;citrix.com; dmarc=none action=none header.from=suse.com; Subject: Re: [PATCH 0/4] x86/PVH: Dom0 building adjustments To: Juergen Gross Cc: Andrew Cooper , "xen-devel@lists.xenproject.org" , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <1d600035-851a-190a-f744-8cd7b2d887fd@suse.com> <02ebe247-6891-dbdf-82f7-5b33b5a08dd5@suse.com> From: Jan Beulich Message-ID: <32638483-c44f-d2f7-a741-c51dd98461c8@suse.com> Date: Wed, 1 Sep 2021 17:51:54 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 In-Reply-To: <02ebe247-6891-dbdf-82f7-5b33b5a08dd5@suse.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-ClientProxiedBy: PR3PR09CA0017.eurprd09.prod.outlook.com (2603:10a6:102:b7::22) To VI1PR04MB5600.eurprd04.prod.outlook.com (2603:10a6:803:e7::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d62c22a7-a491-42dd-81a3-08d96d606d25 X-MS-TrafficTypeDiagnostic: VI1PR04MB2960: X-LD-Processed: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba,ExtFwd X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3826; 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:VI1PR04MB5600.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(136003)(366004)(346002)(376002)(39860400002)(396003)(8936002)(5660300002)(53546011)(66946007)(36756003)(37006003)(83380400001)(66476007)(66556008)(6486002)(31686004)(6862004)(478600001)(956004)(86362001)(31696002)(8676002)(6636002)(38100700002)(2616005)(16576012)(4326008)(2906002)(316002)(26005)(186003)(54906003)(43740500002)(45980500001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?TmFzVHVzRFdDY1UvRTJkSysvdlRMY21HTEE1Q1RJcnBPUExva2E4MzQ2L0JW?= =?utf-8?B?N2VTTVNrb2Z2bGQ1SFJqbFFIaGQzWm5OVWR2dXFOTWdFck0vWFZGK1FHeGl2?= =?utf-8?B?Q1dKaTE2Ti9meWJZaDVZM2Nvdjk1Mi93cDNNaXM1UHJYTGEwK2dka01Yd0VS?= =?utf-8?B?VlVnK0tuRE1UbHEzSS9VZVhyZHdsN25oNlMwaTNqbll6VnZFNmkxK2ZOeGJW?= =?utf-8?B?cnVXTXcycjViWjI0aEN5aGFDaStHM1pvc0FuRlNyZmNQSlRvK1dxcENLWHhB?= =?utf-8?B?eEEwNjBOS0c1K2puMHg5cThCcnhIRWU3dXd6NHJNcUxWT0N5a0RxbXB5TDFS?= =?utf-8?B?dXZsS2VqL2RzSVYyUGlaRDFjL0hURHhITmVQQmZ4alhaOXllbFNhWW9kQzI3?= =?utf-8?B?S3pxMkJCSEZyM0RVRzRsNW1PdDJuek9zcjR3aDFrMTkrZ3E3aURlSXo5bWJU?= =?utf-8?B?cXpmdXFlajhydGRqazgxa2ZzZ0FVT3hsRm5iZXdWalAvNVBVbS9xaUhPQjk0?= =?utf-8?B?OFI2NzZ6MS9VdDFyZ092bUUzc1lyUVhUSitrWGJiRGVjZVF6RnlEZnV5dWlS?= =?utf-8?B?TTRBNkN6WU96ek1iYVZQbnoyanNncVFDU3FWcWowTXA1NUdJcDRSdXRGZXBR?= =?utf-8?B?WEM5dWxUVk9rVjF4cTZjTWNHTGxteDFRdEhaNXEzM1hjd0dFT0VIQ1BLQTJV?= =?utf-8?B?SGI4ZEhESHA4ZEI5d2g4VkVEdVVyTmZHRGpnYTZMeEhKL3NpZnYxaUtBN0Iy?= =?utf-8?B?RlZzeW9Rc0dnZ1U5OHNYVnFiTng3V3pmVTRCTUx0eVh2TGplMGFaRVBmRG5I?= =?utf-8?B?ZjhSdzlzenBLWHhuNFBWWVRYMm1YWmpPakFrS3FrYjloa0ppczBqQVZvR0d6?= =?utf-8?B?bHkyRjZTeUxSVXR4eiswQWRlbi8wRlE0OEhPSEN1RHNqblR0THJZcUVmQ2Fp?= =?utf-8?B?Yk1aNUFLYnh6K2F1SEdpd3hNYkQ3dm9MYVFqcmJ1TXY3cWIxMWErUldKeGt0?= =?utf-8?B?cENkaXFUMkU0RTR3MkpSdndBY3VyYnJaZ2g2U2l4YWpWTUdaNWE0NmNLaTJO?= =?utf-8?B?djZtQTZsQXozTDBxM1ZZd0lPWEtvcjVsOEhlL1V3Um5Gb0FZT2FXNnJZNDBr?= =?utf-8?B?RkprK2VkbUN0TERCdHpWaG5GZ0VkUVZwdzYwSjZVckJlUGQ4TEtuQ1JxQVFz?= =?utf-8?B?NURtSlZZRjVQOHdqUWxRajdNckk5dHRoNkExVnRwSUljanBTV0wzTzltSExQ?= =?utf-8?B?R2xSdUQrYVRKaG1jYnhVSTFzckhVaVJKTmMySFBJYlFLT2pLMXVhK1FEUFJB?= =?utf-8?B?b1FiemhIOWhlSWFNSDRwN2YzM1YvUmpaTlY2ZDQ5UHE4VnpSM0N4YlNJUFl0?= =?utf-8?B?emZZK1psbFRXdFI1QW5BQ2hsSEJGMUh4RjlIYzlqcFJ1MjBGT0NkYkczL0x4?= =?utf-8?B?N21PMit2WWZ3TkRFQXdqVEk1YllBOHhyOTNuRW4weTNucm1xYy9ScXJLSHJN?= =?utf-8?B?TWE1b2pjKzRMbTJ5aUNReFdzeERFSDNkU1Z1Y216T2w1bnE4cTlUUFBDdkRk?= =?utf-8?B?VG9rcDBWWlZyblN4ZE9uUUhOWGFhRTYxL0hPRkpOQjNYVE1HQUFGczVTMTc3?= =?utf-8?B?Z0hSQ20rdytiaXlwWVpjOWtMbTQ4YTlFZlNEaEVacG5uRENBN0IrTTZveWZt?= =?utf-8?B?dllyamJ3NjNBV1VNR3BEYnQ2enRRWHk2SFNXYmNpM2tnR2pSdGFZcFRuMndY?= =?utf-8?Q?PZ6xtpSK0V/fP1C1DZowbOeOkCvq0bwADw5B4YK?= X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: d62c22a7-a491-42dd-81a3-08d96d606d25 X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5600.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Sep 2021 15:51:56.6477 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: nVOOVHIT9fBOhPnyV7BE3owEi0dcsSlOXtaNutaeWvOCtTzuEXd4z/SYd+eKYY9JylT/DXQnACs2BT0pqsHJ/Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB2960 On 01.09.2021 17:24, Juergen Gross wrote: > On 01.09.21 17:06, Jan Beulich wrote: >> On 30.08.2021 15:01, Jan Beulich wrote: >>> The code building PVH Dom0 made use of sequences of P2M changes >>> which are disallowed as of XSA-378. First of all population of the >>> first Mb of memory needs to be redone. Then, largely as a >>> workaround, checking introduced by XSA-378 needs to be slightly >>> relaxed. >>> >>> Note that with these adjustments I get Dom0 to start booting on my >>> development system, but the Dom0 kernel then gets stuck. Since it >>> was the first time for me to try PVH Dom0 in this context (see >>> below for why I was hesitant), I cannot tell yet whether this is >>> due further fallout from the XSA, or some further unrelated >>> problem. Dom0's BSP is in VPF_blocked state while all APs are >>> still in VPF_down. The '0' debug key, unhelpfully, doesn't produce >>> any output, so it's non-trivial to check whether (like PV likes to >>> do) Dom0 has panic()ed without leaving any (visible) output. >> >> Having made '0' work at least partly, I can now see that Dom0's >> vCPU0 enters its idle loop after having gone through all normal >> initialization. Clearly certain things must not have worked as >> intended (no APs booted, no drivers loaded afaict), but I'm >> having a hard time seeing how to find out what that might be >> when there's no output at all. PV Dom0 does not require any >> special command line option to do output to both the VGA console >> and through hvc_xen (making its output also go to the serial >> log) - is this perhaps different for PVH? I couldn't find >> anything under docs/ ... > > Did you add earlyprintk=xen to the dom0 boot parameters? Yes (I did mention this before) - no difference at all. I guess I'll try again, just in case I made a stupid mistake. Jan