Customizing SMBIOS Production Data Using YAML

Overview

SBL now supports a flexible method for customizing SMBIOS production data (board name, serial numbers, etc.) for each platform.

Instead of modifying source code, users can simply edit a YAML file (SmbiosStrings.yaml) to define all SMBIOS strings for their product.

This YAML file is converted to a binary blob during the build process and automatically loaded by the firmware at runtime.

YAML file location:

Platform/<Platform>BoardPkg/SmbiosStrings.yaml

How to Customize Production Data

1. Locate the platform `SmbiosStrings.yaml` file - Example: Platform/ArrowlakeBoardPkg/SmbiosStrings.yaml

2. Modify or add entries for the SMBIOS types and string indices you want to customize. - Example:

   # Each entry has exactly 3 lines: - type:, idx:, string
   # Entry Strings are always quoted with double quotes
   
   smbios_strings:
     # Type 0: BIOS Information
     - type: 0    # BIOS Vendor
       idx: 1
       string: "Intel Corporation"
       # type 0, Idx 2 and 3 are optional
   
     # Type 1: System Information
     - type: 1    # Manufacturer
       idx: 1
       string: "Intel Corporation"
     - type: 1    # Product Name
       idx: 2
     - type: 1
       idx: 2
       string: "My Custom Product Name"
     - type: 1
       idx: 3
       string: "My Custom Version"
     - type: 1
       idx: 4
       string: "SN1234567890"
   

3. Build SBL - The YAML will be converted to smbios.bin and automatically loaded by SBL at runtime.