fwupd/plugins/coreboot

coreboot

Introduction

Until now only the version detection has been implemented.

System identification

coreboot can be detected the following ways:

1. by parsing SMBIOS type 0 vendor string. On coreboot enabled platforms it's always coreboot.
2. by parsing ACPI tables. An ACPI device with the _HID BOOT0000 exists. (This HID has been reserved for coreboot enabled platforms)
3. by parsing the devicetree. A node under firmware/coreboot with the compatible id coreboot exists.

coreboot version string

The coreboot version string always starts with CBET. After the prefix the version, major, minor string follows and finally the build string, containing the exact commit and repository state, follows.

For example:

CBET4000 4.10-989-gc8a4e4b9c5-dirty

GUID Generation

These device uses hardware ID values which are derived from SMBIOS. The following HWIDs are added on coreboot enabled platforms:

• HardwareID-3
• HardwareID-4
• HardwareID-5
• HardwareID-6
• HardwareID-10

They do match the values provided by fwupdtool hwids or the ComputerHardwareIds.exe Windows utility.