Plugin: CPU Microcode


This plugin reads the sysfs attributes associated with CPU microcode. It displays a read-only value of the CPU microcode version loaded onto the physical CPU at fwupd startup.

GUID Generation

These devices add extra instance IDs from the CPUID values, e.g.

  • CPUID\PRO_0&FAM_06 (only-quirk)

Quirk Use

This plugin uses the following plugin-specific quirks:


Mitigations required for this specific CPU. Valid values are:

  • gds

Since: 1.9.4

External Interface Access

This plugin requires no extra access.

Version Considerations

This plugin has been available since fwupd version 1.4.0.