AMD Dynamic Boost Control Submitted For Linux 6.6

[dp_alvarez]

The overclocking/undervolting interface can be used to mount voltage fault injection attacks.

A nefarious explanation might be that they want to sell overclockable high-core-count server parts at sky-high off-list prices to HFT traders and the like, but that's probably not a big enough market to explain it.

Digitally signing commands does absolutely nothing against these attacks, the interfaces are still available and accessible.

Intel already implemented "Intel on demand" some time ago so there absolutely is a market for selling digitally locked subscription-based hardware.