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Peter Anvin" , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 3/7] firmware: dmi: Read additional information when decoding DMI table Message-ID: <20251217212134.GD1263950@yaz-khff2.amd.com> References: <20251216123354.9219-1-superm1@kernel.org> <20251216123354.9219-4-superm1@kernel.org> <20251217210352.GA1263950@yaz-khff2.amd.com> <78dbc0eb-37a3-468d-b43e-f5a5a06ad8fe@kernel.org> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <78dbc0eb-37a3-468d-b43e-f5a5a06ad8fe@kernel.org> X-ClientProxiedBy: BN9PR03CA0762.namprd03.prod.outlook.com (2603:10b6:408:13a::17) To DM4PR12MB6373.namprd12.prod.outlook.com (2603:10b6:8:a4::7) 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: DM4PR12MB6373:EE_|CH3PR12MB8879:EE_ X-MS-Office365-Filtering-Correlation-Id: 7117711c-24cf-463e-d4c7-08de3db243d2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|1800799024; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?6SHY9gCgrloTnfyIXoLD9Exu8twQLBT+IPxDWNLE4oIOXCaBGkbQIsy73Ezd?= =?us-ascii?Q?bKF3n6cnEUblqyl1OXPK5X1waH73vxiK6JKCT1l2BSTwYTk3kTCZSLzZlycC?= =?us-ascii?Q?AslBeKwaIaHyJ3Kr/qzGqwHXkaVa7vSmzTgqIyPkgRDXu3mGbtP28BBIku22?= =?us-ascii?Q?yVnQQFdOq8vyLYrYZp6DXk8p3wCv7jXebU1JZPJqu2RKvjWcGyx4M4S2h3is?= =?us-ascii?Q?+cXJgWdVlpUsmAx5XafngUtzbe26zir+eHr2hFhnOCodbGqi0ceTGL03iqxE?= =?us-ascii?Q?mxIWbpvr7ZDayGk5bz4GQocYQwwNvlTxP1WWW5VLQsPz2vkJcNatowTMnHN4?= =?us-ascii?Q?EAIdvj06t8tfJP7PKCwXOAr6HSs89R0gzOhwEMfE0sguk6EhXagAt8Puwp7K?= =?us-ascii?Q?vTxexZ6nXg45X6F86HGHHuFlLd66S5GAl86Uc6ctQ3ryjSlsG+UN1f0CRlW+?= =?us-ascii?Q?fbeVJeVbVZnSquDsU/dVp8o8m7T/jjUmfD/RFy/P9CeVB2noaxXC2yemZ+KP?= =?us-ascii?Q?Ea6faTYbsKh4ubNHVEx+hYIQDuuW1wEuGqnJn09aQG3g0wSMSk4w3Kw8ENjj?= =?us-ascii?Q?fcVoLvEj58L1eSTP24UrggYCNnFHnm9/KvUYdl/rfk3BlpAAR4Q+saEtBW1b?= =?us-ascii?Q?XgSOpNkHnwytQD2CLTcN34lkigp6d48k6SMflfuhFW/GWz8HuWAT2mrSjsZ/?= =?us-ascii?Q?wxTUlHoLpzAbf5HuS0M6OVi+re5ryyUIyBJg/Wc5yljooAQTL4lLsmtMbpCD?= =?us-ascii?Q?lypUVgi92sh9bye/nRQWJ4L+CaqWUI8A/tYvnK8yIORc0zM+Ok7DWa9rYTz/?= =?us-ascii?Q?0tc2miJNSlkjh4yNQCmx0WJSDDbiH+tjwYlSBR9xoRDmo7l42upV1Dz1wrlU?= =?us-ascii?Q?qg3eO+9otI1nH4KBuEEfDJd7al2Yqnpy3irywWevH/uKPLi/djYJUVRL3vFh?= =?us-ascii?Q?kyg5opU3JAqYJUw5xcuK3Hq40o+DfGslDsCgX+yJdTtQmHt1jyyvP7e1u2Zw?= =?us-ascii?Q?rZ0MLlIHbVZBDYkU79YeA2W5WjFXAdyo+teNJEjPvtY3QvxEkywOXNvQvR3r?= =?us-ascii?Q?stjKe8ozpVyhgon2OfpDKzRgrDCLAYMzbg+NmDSTPitEhyfpVKXn1oI2b1W7?= =?us-ascii?Q?ip+Oxvy11klz0YoeuqD3YPMlqfgUpXuZP1lDGkNZkiEMSP0BFTpaTUhDSz70?= =?us-ascii?Q?PgUsp3FqqKFN3sMpWRKOHJNjAlfnpt6klD/U+VHYToRAEDTw3LDaxG7yprxN?= =?us-ascii?Q?RkvUBossAFntJGQKqzoIdvB9/DJP9j3LJ6pTZpnX7NCvdxVs5f13eVTT3jwo?= =?us-ascii?Q?kOuKOmET3ThMiUUYWr6Ui67+Z2UADce7gSIGYhoPvSKTnCqOga7Q7/+HIdnj?= =?us-ascii?Q?l3WXt+q0rPPPWyLvcoiDSuEqawVXVVQ4g8AYpmKN4Sygh6TvPkcAEX7/yZq2?= =?us-ascii?Q?jrVi+Cb4PRDw3n11Bzu+4WPj1Igw0tw8YaNJDHTB4F+05GHHHJ9IkWyw9VsR?= =?us-ascii?Q?5MykqdG7S87LkAqk/Ji6cWXJjR/CBNtqnhk+53fRWDDUfQwuWCmr5beH2JTT?= =?us-ascii?Q?GmyDmrWm/Is/kabmPT3FeMr3SGuMuej/+7YWkYYw?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7117711c-24cf-463e-d4c7-08de3db243d2 X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB6373.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Dec 2025 21:21:38.5771 (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: /4Y3c9oXylF3aK52WooopZW+r662sRuNnjhmGvGIG4/d4440Leu/pTYzvT2+8T0ruR0zcpjnhsYosuisvfROuw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8879 On Wed, Dec 17, 2025 at 03:09:33PM -0600, Mario Limonciello wrote: > On 12/17/25 3:03 PM, Yazen Ghannam wrote: > > On Tue, Dec 16, 2025 at 06:33:50AM -0600, Mario Limonciello (AMD) wrote: > > > Type 40 entries (Additional information) are summarized in section > > > 7.41 as part of the SMBIOS specification. Save these entries when > > > decoding the DMI tables. > > > > > > > Why can't an interested user just use dmidecode? > > > > Thanks, > > Yazen > > They could. The reason for doing it in this series is the same reason for > the one that we did the S5 bit. > > It shows up in the logs, you can tie regressions to the AGESA version at > specifically at the time of the failure if they've done BIOS updates since > then. Yes, right. Sorry, I mixed this up with the debugfs patch. We need to save it here so the init code can find it. But why do we need a debugfs entry for it? Thanks, Yazen