From nobody Mon Feb 9 16:21:14 2026 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=suse.com); dmarc=pass(p=quarantine dis=none) header.from=suse.com ARC-Seal: i=2; a=rsa-sha256; t=1650968867; cv=pass; d=zohomail.com; s=zohoarc; b=ilrgdvxI6uPWSZ/qWksPkmRKzjdYQuzhNxJnn0VLOZ6McqZexByIYX0s2eGG2WKejlrZ8tzU42sRkrTpJcHPB+jC70MNPFMZOIj/sdsejJel3m3jRFI7Il6FjTTM36DpxW1Mv0hNrDXa2Zdv0SFD47JJ23Bv7abe4On/+RK7H5Q= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1650968867; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=lOjHQbvjAHuNhYfaLpMKdkqXrWxqv6HPbYChJwJDg6s=; b=KeX1OIGqnQYUbnyOgjoUfWqA/q+ZpSdENJCEHz0aveM9P1gLQN99Z4qIZZ0IMrJnBpianfUmx/O5VYAfbspnoZf3uAgUNdpylmtlErJro8YvIXie+a6cpjAxwQWxGDkxptzP5FA7UfJUu3oY2cbrG2cvNYbu1hxzA4kNxoCDSps= 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=suse.com); dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1650968867311762.2564755868649; Tue, 26 Apr 2022 03:27:47 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.313718.531424 (Exim 4.92) (envelope-from ) id 1njIPn-0001h9-62; Tue, 26 Apr 2022 10:27:27 +0000 Received: by outflank-mailman (output) from mailman id 313718.531424; Tue, 26 Apr 2022 10:27:27 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1njIPn-0001h2-2z; Tue, 26 Apr 2022 10:27:27 +0000 Received: by outflank-mailman (input) for mailman id 313718; Tue, 26 Apr 2022 10:27:26 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1njIPm-00013U-1E for xen-devel@lists.xenproject.org; Tue, 26 Apr 2022 10:27:26 +0000 Received: from de-smtp-delivery-102.mimecast.com (de-smtp-delivery-102.mimecast.com [194.104.109.102]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 77036a99-c54b-11ec-8fc2-03012f2f19d4; Tue, 26 Apr 2022 12:27:25 +0200 (CEST) Received: from EUR02-HE1-obe.outbound.protection.outlook.com (mail-he1eur02lp2053.outbound.protection.outlook.com [104.47.5.53]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id de-mta-39-SQPZjC1tNVe3H6HnzLSA_w-1; Tue, 26 Apr 2022 12:27:16 +0200 Received: from DU2PR04MB8616.eurprd04.prod.outlook.com (2603:10a6:10:2db::16) by DB8PR04MB6490.eurprd04.prod.outlook.com (2603:10a6:10:10d::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.21; Tue, 26 Apr 2022 10:27:14 +0000 Received: from DU2PR04MB8616.eurprd04.prod.outlook.com ([fe80::5cb0:5195:4203:7c2f]) by DU2PR04MB8616.eurprd04.prod.outlook.com ([fe80::5cb0:5195:4203:7c2f%9]) with mapi id 15.20.5186.021; Tue, 26 Apr 2022 10:27:14 +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: 77036a99-c54b-11ec-8fc2-03012f2f19d4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=mimecast20200619; t=1650968845; 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=lOjHQbvjAHuNhYfaLpMKdkqXrWxqv6HPbYChJwJDg6s=; b=J91soNFfJrWW9E+zp9jZod1w9Rt8yKlgfNMEE7lnBgeKohrP1xDdKr5Xwtu4HGmKRXx0mt dkK9ZZxPpX0QCnhyflzej1YGDUM8OH8jX+Ef7WSer+GazybQfZzMP/RjGXjbRdig3bzBpH VvI0L5OOjX9kVmtxv6imso7FszeOa3o= X-MC-Unique: SQPZjC1tNVe3H6HnzLSA_w-1 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=a0HCQxy/rwcoRNVQWgX8z16CNC3WzwCyj2163Gs0HBp0Ce0gxIOLNT8OTXXZyvoEhbtCFVH4jWb0WabqQ83hkfHfNwAoBrKB8VtKAFJ4XHnAmyzeACoYAgv/7esL1O3Pj9464fL05vLuFTPMTA4NBbLCNsR2/ydRnWISluHthAQwwy9feRb16YjtyXvFQC6exCGoqRt2tmoDTq+xOaq4Y0j73cLIx4Cx5KO2ZAVfIJXgW5OE3rR3QRNo2TUPjVKXfDIC8m0TegoJmo3m8cRPUU52un1xud5qnNZhii6shMpPv8CvS6BTOvKU2odqQmsZyooiIr/TboQ3PfnHp9tjbw== 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=lOjHQbvjAHuNhYfaLpMKdkqXrWxqv6HPbYChJwJDg6s=; b=Tm0PVVMHKmQFK701yt4mUv5vTgKqGdesq+YvqpPauhwgkK1kpAs7s790mhHh/cWCQOARrViWPGpg+t0Soa9UwJQAkImAaLJwE/UENTTltLhPZg+w5lABA+IWxaHnQH/7HJ+S1YY1A8FxdC8B7K83CjfbO4y0tSXR+tBQ5qKYYLhhmNlWS1PqYMePEYL3/izTu5mllWh3m7mlJV5TpypicM20FnoYc5YtQUXYLfP+JPAVMQnfH5Jcv4NMdSydOXE8yobbQ/JH4v9mm+DOqGFD10AUysdYWhi7hk8NkURuaX5mtMfg83hEnn2Qu+RaqEn+P4/I9G4DkSffNYJRhZqhwQ== 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: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=suse.com; Message-ID: <6d6144f6-489e-d9b0-b590-f5d65c385116@suse.com> Date: Tue, 26 Apr 2022 12:27:13 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: [PATCH v3 8/8] SUPPORT.md: write down restriction of 32-bit tool stacks Content-Language: en-US From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Anthony Perard , Andrew Cooper , George Dunlap , Julien Grall , Stefano Stabellini , Wei Liu References: In-Reply-To: Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AS8PR04CA0113.eurprd04.prod.outlook.com (2603:10a6:20b:31e::28) To DU2PR04MB8616.eurprd04.prod.outlook.com (2603:10a6:10:2db::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 34508f68-a06f-4300-a9a5-08da276f550c X-MS-TrafficTypeDiagnostic: DB8PR04MB6490:EE_ X-Microsoft-Antispam-PRVS: 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:DU2PR04MB8616.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(366004)(6506007)(26005)(38100700002)(6486002)(6512007)(66556008)(508600001)(36756003)(4744005)(5660300002)(2906002)(31686004)(8936002)(2616005)(66476007)(66946007)(8676002)(4326008)(186003)(54906003)(6916009)(31696002)(316002)(86362001)(43740500002)(45980500001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?VzlZdmFmeldUdnFnN0w4d1h1SDZCbUkwakJUL2FueFBBNjFxOTQwZ0ljVDNM?= =?utf-8?B?YzBiQTE5NFI0cE1hWlljZGpVdGNOMjNqZUI3Rlh4SVVsVVJVY1JBMXRDNmVS?= =?utf-8?B?bWhrWmJLSUhIaWtBMVBSQy9VaVJtckl4V2tzQ0tqVTJKRmJjUlZZbjVxQnEx?= =?utf-8?B?aElhK0xVbUN1Rk9YMW9UN3RCWTZCZVJyUUhEc25kaWUvbXdNQys0UWlsdUpo?= =?utf-8?B?cXB2TUZqdEhPNTBDTU5IemVPeEhmYlgxUHM5bDRUSEdHSyttMmhuVVRkemtK?= =?utf-8?B?QUJYOVJweHozekJoM1d0TFF5VVdHUTR1VFd2MkowNU1BS3pDZlFzRzVVTHY0?= =?utf-8?B?SmIzUyt0VEFQZVdXQm1XaFBJUFA5ZVlZRGR2NDlCMHRWdytzMUxQc0xobEJj?= =?utf-8?B?bXVRTFBXaTdLZkFqTGJvcmZsZFYxYWd0ck1PMDNqOFRjZDZSYnQ5WXlmU1pL?= =?utf-8?B?ZWhva2pwb0ZvZmRiYWxUUVVMNzloTG5ZcWxLekdpb24wL0k1dkxnNERkY1d2?= =?utf-8?B?dzBHZTBZRnRxK1hZaGkvSUEyS1Qzd2FLMDlrZkgrMldXTWlIRWRULzlqMUhL?= =?utf-8?B?VmZ4UlJaUytHaUJ2ejNrQlQ3Tk5zTzFyMXA3aEd0UXFCVGFTQk9ONHExN1Fh?= =?utf-8?B?ZVV5ZkVkQ0JXeTd5OCtvOVF6LzlBaFZna3E1ZVM5bFpVN2FrSGNXdUlZUGpT?= =?utf-8?B?Und3SVFwU0szcGlocXo4V0VhY2luMHZEZ1pjUm1MY09EdTFHQktZbDdLWjhU?= =?utf-8?B?Ni8xR3A5RlcwNnI2RGE0NEwvZzRtdFVvVGFSeFNxYXM5ZGE3eElmSTkrVjlZ?= =?utf-8?B?S1hTTjNralNkU3BrZkQ5V21yT2Z4TnlXaUdXVHBLOHVaK3hOL213d1IxbmFV?= =?utf-8?B?c01wWU5kOFMydjZJWTJweFlBTVAxWHVYSnUvTzVQOGFaRXBEZUFsbmZGb3FO?= =?utf-8?B?UlhGdVlXckxmVTNWNGpoQTRSZkl6OHVuMTRNYWVqamhJY3QyZ3F6bWQxenQ2?= =?utf-8?B?RUg0SU5xYnFrWmcvNkhRaS8zVnp1SkZWaVFocVRXNUs4citQZVhqdll6US94?= =?utf-8?B?NStqakpaUWorNTViREFFazZnRG1ZQ2lPOURsZmdMTTlseW1rQWMydDdaTGlQ?= =?utf-8?B?eXh3Y1lGdzJCbDlLNHJLZjV0QjcvT1RKejJ2bzVtVmMrcnlOT0Fza0ZwQ1dZ?= =?utf-8?B?c1hkb2U0cXZ0OE04KzZxb2FzQklqQk9LM29tcVcxZWVLeW9USk1OR0w1T1Jy?= =?utf-8?B?bWhjRFFLVUhjRE94SXA2YnZsU3B2aHU2ZWt6Y0JzeUJVbUFyTmRmVFM5MGpv?= =?utf-8?B?Nll3ZFNMVXB2azErSmhIa0RzNVhyOTROaVNFZTFMTVVDaGY0VjdYWlR6MEVo?= =?utf-8?B?MElvc1hkK21UTjg1SVkrSlNweG9yQ2pZb2RlM1U5Ti81MGpYZzQ5cHlWOGky?= =?utf-8?B?UzR2NHVYbmM3U2VzYVB5VW1nYlNvRG5DbjlLVXp1TEVrc05YY0Y4K0IyK2JT?= =?utf-8?B?OGJjcjRPNFZlNFNlcGl4K3FhMllrYnpTRVlaYWc2SmtrK0RpWms3WVZaSWx2?= =?utf-8?B?bzZicUl6WFZ1cGVoZlN4Q0RRLzVud0xrWHhoeFRaQzRrcHM0ZmtKOGxVd29s?= =?utf-8?B?RktVRTVkekFndTc3dGc3L0ZBekhUb25DemtNT1JMWDI5MUQwcnJpcXF4MkZC?= =?utf-8?B?RzZyQ3R6RHg0Tjh4aHhUS0FTYThaaGtCVHh2SW5adFRJejR3NWRaVnIvaTc2?= =?utf-8?B?czhkZndLakhLUDd2eTFLOXhmOFdUa04wU1V4OEhYVFpjRWlWZFZxT1laSzVB?= =?utf-8?B?OHFrVnpSeklSb2p4a0U5bCtCSkNQY050NXhqalNuR1V6Nm1HbnFzVThvWHFv?= =?utf-8?B?ZDc4TFZqSVNwOWV1a1pFYm5hc1lFeFlDQTJZZllzR2kySW95OGR6UW9lVHYr?= =?utf-8?B?b21INXQrRkl6SVhFbEluMWZWVm9RNGt0eGh1dFBmQkxOVXZXQXZEbnkrZ0FO?= =?utf-8?B?dVlMTHRwci8yKzU4TWxUNFB3OEJLU2lCL0c1Lzh1eHNWTlk0a2VGc29xdER0?= =?utf-8?B?YlJBTkRHN203NEsxbU0rNDFlVStiOFVPQ1A1b0VZT2N5alJyTjhzd3NPT216?= =?utf-8?B?VXovOVN5Ylhtdzk0ZHl1VW51V2lrRk8yTHlVeHAycllGNTlrVmxGL0lXRmJI?= =?utf-8?B?bFN2RWVoaUlPbjRjVDZWU0pkM1dIeXBPa3E2OUhaS3p4V0kyZlRRYkVkMU1B?= =?utf-8?B?VUY3NkdtNHU1R0xkb0NlaGJZKzRBZGlSWVkzOU9Sd2daU3c5RC9HYzlGR29r?= =?utf-8?B?Q1dDQjdZU3NSaE5wSWkyOWZvVVVTdjFVdFR3dWMxb0FJS2Vuc3cwUT09?= X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: 34508f68-a06f-4300-a9a5-08da276f550c X-MS-Exchange-CrossTenant-AuthSource: DU2PR04MB8616.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Apr 2022 10:27:14.9030 (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: gccFYk4qLYQUz+duNfWhpYOzOGh6cOrusuHzq7P+M/JLlSFjle2cfNCSL+WEYcBHRkMz0bZN//3mWOwjV+Mq2A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR04MB6490 X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1650968867702100001 Content-Type: text/plain; charset="utf-8" Let's try to avoid giving the impression that 32-bit tool stacks are as capable as 64-bit ones. Signed-off-by: Jan Beulich Acked-by: Julien Grall --- v2: Wording adjustments as per review discussion. --- a/SUPPORT.md +++ b/SUPPORT.md @@ -137,6 +137,12 @@ ARM only has one guest type at the momen =20 ## Toolstack =20 +While 32-bit builds of the tool stack are generally supported, restrictions +apply in particular when running on top of a 64-bit hypervisor. For examp= le, +very large guests aren't expected to be manageable in this case. This inc= ludes +guests giving the appearance of being large, by altering their own memory +layouts. + ### xl =20 Status: Supported