linux-kernel - Re: [PATCH v2 3/7] firmware: dmi: Read additional information when decoding DMI table

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <78dbc0eb-37a3-468d-b43e-f5a5a06ad8fe@kernel.org>
Date: Wed, 17 Dec 2025 15:09:33 -0600
From: Mario Limonciello <superm1@...nel.org>
To: Yazen Ghannam <yazen.ghannam@....com>
Cc: "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
 Jean Delvare <jdelvare@...e.com>, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
 Dave Hansen <dave.hansen@...ux.intel.com>, "H . Peter Anvin"
 <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/7] firmware: dmi: Read additional information when
 decoding DMI table

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.