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fwupd/plugins/optionrom/README.md
Richard Hughes 53de58f06d optionrom: Do not parse the image 
The only real value of the optionrom plugin is the ability to store and verify
the ROM checksum; parsing the image is not actually required and is a source of
anxiety for various security teams.
2021-02-10 16:23:16 +00:00

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OptionROM Support

Introduction

This plugin is also able to read and parse the firmware of some PCI devices which allows some host state verification to be done.

GUID Generation

These devices use the standard USB DeviceInstanceId values, e.g.

  • PCI\VEN_%04X&DEV_%04X

Vendor ID Security

The device is not upgradable and thus requires no vendor ID set.

External interface access

This plugin requires read access to the rom file of PCI devices (/sys/class/pci_bus/*/device/rom)