From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on2068.outbound.protection.outlook.com [40.107.244.68]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 81ECD18D64F; Thu, 15 Aug 2024 14:16:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.244.68 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723731412; cv=fail; b=gFOnTleXKWG5nLsT6Hbo8c7A9uIROu8DvgcONGtUwuhPJoVSx5l5uxgekSqBpSRwCuFgrUKboeGVYBf82jrmtWNdsrMFpU1IVzq+aGGvyBhnGew4RxiOImEMAqQX3dlZHihxELh3uUoFQeFTrR2G2ABiBR5XSBmr/M4HOlyI8WU= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723731412; c=relaxed/simple; bh=CyOGeXTzgRDcVtdHBKS5p+C2654L2GuJhhycO72ryok=; h=Message-ID:Date:To:Cc:References:From:Subject:In-Reply-To: Content-Type:MIME-Version; b=V/Lli5S/XNnfyBC3qCrZ7OD/0RdEEWjpT+c0ePSn0NsRgzuVeS1UiEO8v6kwj6S5fJqdoA8nAXpHm+hIvNk1x2oDKb4Kq4fCqqsd85SPuhsZktIELTxgGOELQoBcTDtHd2DHb5vZu1OA+2Zy3HBcjpubVqj4MeOkT+n4QYcYPkw= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=rXZctyT7; arc=fail smtp.client-ip=40.107.244.68 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="rXZctyT7" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=o4900PhAqiB12xhAyldsX5tcb9qzsLn9/eTT0rESm4iY1lXovunBR2Yd+7Srmnma4OtTYcrer6rcBpNSDV/PfHLq1k8Wzeo7wyyrWNQvgkjm/knGQajyD6OpNAVeJhJ+aJ+FA8Pnoixfuekj1pL4FUBWBQMoTupKxuTquuXqZUcAzCk7pTex3WlGXctCTGEiRvDLA/GKwykzBmHaSbop1vh0H76pr1hK+rnSK25QPnRqhCOqOdFkJ6SFH5n6ZD+5iAlbYr0JMO8BYkLndCvobGG4Z/E/gYzuLTMZF+o0SUp2JXUrmsGn9T/9JWYekI0OZxW7gqSfDr25AFuoqOe7rw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=2KnmcYFN63qQdMJbtMpnXXzn225898Xe5tZBNZIT2sQ=; b=s9O1/aHBFAV/42e9pefF1iGgqNr4JND/tWkzLp1WS30a3oP8tZaCXocaAI1AimR9izBdHmJOf3XbzWuT+DqyF1Yq1pc1Brlz3t9o8eH0Q834lNHezD1ECgxQaIwgm276EcRBR9eN5QgzcHZ8jpRNDj7P2tg3JQJKtHXM2H3VfKJUWlimifHUomwh9uYwlGXh25R9DBJYkbsza11CT7KN/avVHuRz6pMO9qzcIcvXn3GWfJ+2+qBRlin1kREwCUrjOqfaODbEcwb3667UK+QGhCA9dhpYSGqLB+sXJsjVdwbrOlg2aC+aVxzqd7RB6mV2EmS2xBx42Tsj7aWJXQ2juw== 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=2KnmcYFN63qQdMJbtMpnXXzn225898Xe5tZBNZIT2sQ=; b=rXZctyT7w9LOVb53rSECtWMBEX2UpJ4LyoaWmwyaCMBeAacZJaZ56Qr71SRcMjU/0zj5iswiaKGfAWKwKsHeavtgm/i4N0mz+4vLhekyEZrtE3JNoAQRBTYjWBXtMFCCoVnMP1/LeRKT/srT6ahUnsfVyTcAZSMMRum6MOtXQ0w= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from DM4PR12MB5070.namprd12.prod.outlook.com (2603:10b6:5:389::22) by LV8PR12MB9419.namprd12.prod.outlook.com (2603:10b6:408:206::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7875.18; Thu, 15 Aug 2024 14:16:47 +0000 Received: from DM4PR12MB5070.namprd12.prod.outlook.com ([fe80::20a9:919e:fd6b:5a6e]) by DM4PR12MB5070.namprd12.prod.outlook.com ([fe80::20a9:919e:fd6b:5a6e%5]) with mapi id 15.20.7875.016; Thu, 15 Aug 2024 14:16:47 +0000 Message-ID: <0561862d-99d9-ae72-49d0-9ad0639482ea@amd.com> Date: Thu, 15 Aug 2024 09:16:45 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Content-Language: en-US To: Diederik de Haas , John Allen Cc: Herbert Xu , "David S. Miller" , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Tom Lendacky Subject: Re: [BUG] Non working HWRNG on AMD Ryzen 5 5500GT In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SA0PR11CA0206.namprd11.prod.outlook.com (2603:10b6:806:1bc::31) To DM4PR12MB5070.namprd12.prod.outlook.com (2603:10b6:5:389::22) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM4PR12MB5070:EE_|LV8PR12MB9419:EE_ X-MS-Office365-Filtering-Correlation-Id: 6874310f-9187-40ea-d537-08dcbd34e5c6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?WUV2UVB6SWZxQkd1R2phUm85WGFiYlRRamlqTEwxdDlBMjVYbThoOVNDU2Nq?= =?utf-8?B?aTI2TDFmMHZDeCtPbWxIYzVwb0tER2wwcDZjOTl1eVpNYS96OGprT3FxR01t?= =?utf-8?B?U00raUJIeTlTUXJDY2QwZTJOZzg2RUszQzRnU0ZtcEVaenVIVU9sNTFmMVls?= =?utf-8?B?bDBkSkphZFZoaENOY3Zvd2pRcnhKS1JnOUNPVFEreHg2NTFDVXZ5YVM1SnUz?= =?utf-8?B?MW5NSnZpUGViYTlTZloyWGk4RFpxTkhDSWYxYnpJN2x6TEhlbjhjRVg4VFlP?= =?utf-8?B?TTdsWUlULzVWUkZWMDVGVGJ2ak5nMlE5aU0zSFgwSmhrRkhOUjlCeFZRTGp1?= =?utf-8?B?Rk9QVTJqV0Q2L3M0RjhYKytLcjcwZW8rREd4SVdkYnYxY2NyWVFwNTB0WkNX?= =?utf-8?B?OVp4N2lpYWhDZGMxQlFwTE5LZUhocGljZXNTbUwzTDlabXM0M1U2M1Zta0lP?= =?utf-8?B?Z01LdnRwUDIwNjZ1MFc3TStkU2UrR0FKWWlvVENJVkVpdENGQnVXeDNiWkxv?= =?utf-8?B?KzY3eFY2eG5XYXkxQU1BYktLZi9hck5GSVJtWHBzcnBjUUNuUTk0N2o0ZzBZ?= =?utf-8?B?TW5HKzVOd2NlWVNKUUcrWHpSSXF2SldOZkJGV2xhQnRCWjk3dkh6NnkwcFJy?= =?utf-8?B?Um5BMlkzdDBRUVJPcmtTMGFoRHRjOTZCMGxNM3Fub044a1d5amNGVC95U0Zh?= =?utf-8?B?RmNWUXZlZzZIR1ZDaGw1ZVNmc0JFeFlRQzl2RHIzUG9XZWw5L0ROcHY2ZEx0?= =?utf-8?B?U1ptWnZWcFFYTXdNQVE1Um9HK3pPN0Q3Vno3c0tiWDZGNlk3dlZhOUQ2UmpD?= =?utf-8?B?YXFmYU1pT0ZLR29HcGlzMENFR29FT0kyRVpjU3RCdGtRajRpLzY1VWJLaDE0?= =?utf-8?B?Z3I0QnNySFJ0T2xpUU42eGRoNVB0anlXTTBVYmRQRmlsNlRkcnBUVE9BS2lC?= =?utf-8?B?YXBQWnQ4Tk5wRkRmaVlxeWQrd1A2bGRxdG9ISnBkSXVSZ2xvQTVheGtNVm5u?= =?utf-8?B?aEFmQ1dvRGs1UG5Lc01mdmRBa3hOMHVwWFZ6K0ROVjBRWUJERUlCRnhmTStF?= =?utf-8?B?MDlXbGlTclNEc0NzN1VuczZiMXVIRWlKbmZqRmxXK0g2b2tDUzhjN05YQ0VS?= =?utf-8?B?cVh3aStRemNMalpHVnBEUXVmMmhjWUFWSkk4cmRxQXZXVUJBNHdlR1FZWmxB?= =?utf-8?B?UldkeTJ1WWRvMDU2UCtBWmZNWUdScWJFTWxFTUowWXRoRmFFU08vMmY2THlU?= =?utf-8?B?UGZUMjlwSHcyb0tNZlA2VjM1OExNeG0yVE9Wa3p4amx5Y1JYNElWazZyK3NJ?= =?utf-8?B?QnM5b3RPNlBXU0xJUzhQZk5UL1d3RmVPQnBYeHN3SXdRdkwzOXhmdzFnKzZs?= =?utf-8?B?RTcxM2J3VmoyYTRnRFVBcVFHd0pzcHJyKzVIdTQ5eGdra2VDcWJmVC9tUURZ?= =?utf-8?B?Wk8xQzJOTVFqeWF5STErUEZEZVdZTlgraWFQUXJWSk15THBWdjNFOGlBbDdn?= =?utf-8?B?N3EyYTB6MnA1WDZ5dWZNMlFvRXpEaVVGT1V6bC9XbmphWFhyQ3VWRzkwamk4?= =?utf-8?B?OS9pQjRwcjNtRzhuczFGRGNjWnozSkptUitXb1kveFB4YWZiK3NDcmJHM0xN?= =?utf-8?B?RlIyeTJXZ2hSVWlaVGJZVE5VMjcrdm8wOW5lampLaFp1eWxjMUczY1FIdy9O?= =?utf-8?B?dTRQTTUzRE96aXZBRmhuT2daWEdTQ1RlcElzNVphb2VDSnZvcTFOdVlTYXFY?= =?utf-8?B?ZlREZVJFM1Znb0hsdFUvRHl3ejRlbDkzeFQzOWNwbnlVSUR0YnU4cGp0emZy?= =?utf-8?Q?d9ZRpDqsLZ3kC6Y9n2fgZHmEbWTl7cFvCr134=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM4PR12MB5070.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?bEFadmZ4aXB6emlESzBYaDJxcUJlSzlISVY3aXJUZWlKLzNKNU9zSHhoR2lh?= =?utf-8?B?eVVYUEZnSkJyRTdiRnIwS3l2QXRVbHRZWWU1VWptcUtQWGQ5ZzZydEJOeUU4?= =?utf-8?B?NkdZRzl1QWxjRGJDem5OZlUyd2VJNnI4YlpOZHhYSFNQRUsrdlRIUGszL3Zq?= =?utf-8?B?KzBqM1VrV1B1dG1DajJkcXJySXIyRlN6OFcwa2pPY2YvV2UvU3BIL1dvYitp?= =?utf-8?B?dldmWUxYRXlvN3hnNnEyUE1nOVZna1JacTFWdmxTb2ZtbUR4WndNaGdBVWV4?= =?utf-8?B?MElUeHFlamdxU01qOEtTa0JsUGJrMjIrcmZnK05BcmZkUVJsMi9aVi9DTWpN?= =?utf-8?B?QmdyaEMvU1VLMWNicnhtY0hKQTR2WFMzYWdnVlFRdVcrSC9RTkRGQ2U4ZzF4?= =?utf-8?B?a3lDbjcvbnZNdUlkS1ZBRUYyMlRhTnBPMmU5ZmJEYVgwejQyQjJwcjdDTzkv?= =?utf-8?B?U2RicTFhOXNHSmxqa1Q5c09HVC9ESFVkQjd3aFQvRm5KQ05MYWVtSjVLZ3Ri?= =?utf-8?B?UzNKUWhsc1hrWnZET3ZCaEJjZCtpaVdNbkU4R1RxRUsyQ0NzWXk3MzlhZ3do?= =?utf-8?B?WVhLdG95V0o0eHNyOWc4K2lwZEpVNDEvcytnQ0toaC8yTnFGQ3FtT2xPWGZT?= =?utf-8?B?N2xFNFZWa3dUVWdvaWFXeHNHUzRXcnZ4dFdqY0ozczA3YitBMm9iMTUwV1RF?= =?utf-8?B?YVlLaGtaREg5dFg3b2FnemVubW9EckVia2RHN2EyV3M1ZHQ0aWVmZ010azNn?= =?utf-8?B?eS80SzNqelhaWjBaaFR3bktuMGZZOVg3WU5EKzlHZ0pRSjF5TVQwWDlPd08w?= =?utf-8?B?WGdPSGpUejduR3QrUFRvSTlIbWJUV2dsWklKYmF3RkVLamRKbzJuUGlKZDlZ?= =?utf-8?B?Q0s2aVlqVXlaZCswcUhOcUtsenFCeVlrTnFZaTkzdlk4UUxxUDFXM21LbGJY?= =?utf-8?B?aERtdmdOT1Q5MzlTNkk2VS9wOHJFdEtBaXYrUXcra3JnYmJwWlNnellXZlJK?= =?utf-8?B?dzVYTkx0c0FZbzdjdEZzS0VZczFoSGxpVWZYMW5qczlxdXJ2YVlyYk4waDRm?= =?utf-8?B?R3NBcUZYamhsTk1Xbll5Nkx4cGJNdmViNWxpbW9RRm42djRIQzVyU2s5dGt4?= =?utf-8?B?eThZSWxxL09YYzBDTk1DbTJJQ1JiT21QbW5qbk52dlhpZmltT0x5Nnk0Rm8y?= =?utf-8?B?ZzRUWGR2L2RRVEtxa2ltaTZRSktFS29KWUI0T3hTKzBvZDN4WEdnS1Q1Y1Zv?= =?utf-8?B?c1RXZlk3VC9qSzVXV2FqY0FSWHFzM2xEY0pKb1FsQVhFUHNXNTVtd3JzSTZK?= =?utf-8?B?eW9ONXVtQkR0WDl4eFJqbUFoa2lqRGJoZlIrS1p6NWZrWEFiVHlKdnZTWTk5?= =?utf-8?B?bjZQaGs4SDg4VVVqczRzUXZreFJFZVZRVkJmMEpqYjFxNEhMK1ZQZmowYzNO?= =?utf-8?B?dDd1K3dtK05MMmpXdzlzQjczUnZlY3l5eTZSNHdmYUE0VEdUME1vQU12ajRD?= =?utf-8?B?V2hFZnFNQnRFSGdTVC9lU1V6a2NNL3dtZndRRi9sQytmWm1CdXJwMlVFYyt1?= =?utf-8?B?ZmpEQ1lZU1BrOWdzNlNPWXo3clZ6NHQ1NzRyNGljT21SWHBidWhZTWU1dDdM?= =?utf-8?B?c3UwQUVsRDZ5dG83Wi9IRUNrTXpuU1dYMmg4emJhaXNOMkNteVN5N3dGeWh0?= =?utf-8?B?WEpURjJPR3pDVXVtRW9UOHVFK2lHTzNUUUM0eXNNTXgyODZvK0FTV0tsT3NP?= =?utf-8?B?REIvSGI4eFB5bzQ3cFVDcjVtNThDS0E1czlDY3g1djE1OStqVi8vZHFIVlA4?= =?utf-8?B?dTdMK0hPdk9nT3dhUUl5Wkl6OHZ6YnNCZnRrMWVZWENpRk1nZjY5V0pwcHds?= =?utf-8?B?TU1OcUtZRkRZRlVkQWRjVkRzU0ZNV0FTMVVVeUYzTHJHTFZiTmpNWFltSmwy?= =?utf-8?B?ejNlMUxNZmdMS2hJbVJMZFV6KzhnUFVpaHRSTkdabERXaEtoQ0U4TnVRZXFz?= =?utf-8?B?Zm1Jcml4cC8wZXhSSk0zL1BISkxGZGdNY0FPM1dzcjdNVExXZUFMTTRUNS9i?= =?utf-8?B?M0g3UU1EcUlJQVpFd0sreWdyZ2daRjdyL0VURTRSVTFJUE5WZTZQeURLUWxB?= =?utf-8?Q?vNcJiqoHcOJ7wElbYP+K6GFQl?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6874310f-9187-40ea-d537-08dcbd34e5c6 X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB5070.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Aug 2024 14:16:47.1974 (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: V+L719CSMEV5q5GtEM1A2HAZ+Zr8ZPKJCJIxRIh7Z0FpQjkN4iDXTqH22YwCDpIzKmvOdgo5SaYIxaOuk4/khg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR12MB9419 On 8/15/24 08:56, Diederik de Haas wrote: > Hi, > > I recently bought an Asus ROG STRIX B550-F GAMING MB with an > AMD Ryzen 5 5500GT CPU (and installed the latest BIOS: 3607). > I'm running Debian Testing/Sid on it with kernel 6.9 and now 6.10 > and it seems to work great. > I've been doing some (unrelated) tests with `rngtest` from the > `rng-tools5` package and wondered how it would fare on my AMD CPU. I'm not very familiar with this test. What is the command line that you are using to invoke it? > > And I found out it doesn't work at all! > But on another system I have (Asus ROG CROSSHAIR VII HERO MB + > AMD Ryzen 1800X CPU) it works absolutely fine. > > # dmesg | grep ccp > [ 5.399853] ccp 0000:07:00.2: ccp: unable to access the device: you might > be running a broken BIOS. > [ 5.401031] ccp 0000:07:00.2: tee enabled > [ 5.401113] ccp 0000:07:00.2: psp enabled Which system is this output from? Can you provide the output from lspci -nn? Thanks, Tom > > Found an article [1] which could be relevant and downloaded and ran the > accompanying test program (written by Jason Donenfeld): > # ./amd-rdrand-bug > Your RDRAND() does not have the AMD bug. > # ./test-rdrand > RDRAND() =x47c993c0 > RDRAND() =xec7c697d > ... (more seemingly random numbers) > RDRAND() =xba858101 > > I tried it with the latest microcode dd 2024-07-10, but that didn't make > a difference. > > So I'd like to know if this may actually be a bug on the kernel side. > > Happy to provide additional information or run tests or try patches. > > Cheers, > Diederik > > [1] https://arstechnica.com/gadgets/2019/10/how-a-months-old-amd-microcode-bug-destroyed-my-weekend/