From your link: > On non-ARM systems, it is required to implement the ability to disable Secure Boot via firmware setup. To be more precise, this is only true

From your link: > On non-ARM systems, it is required to implement the ability to disable Secure Boot via firmware setup. To be more precise, this is only true for non-ARM systems. This is evil, since it's entirely possible to have an ARM desktop/laptop, and I really hope there's some kind of anti-trust legislation here. At least Apple offers a way to boot into an alternative OS, even though it is still a bit locked down.