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The comment you are responding to is a joke. It is referring to recently discovered AMT security vulnerabilities in Intel CPUs. The joke is that it is asking how AMT can be added to an ARM CPU, when in reality nobody would actually want to do that.

This has been another episode of the Hacker News Joke Explainer™

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> This has been another episode of the Hacker News Joke Explainer™

Tune in again next time and remember, if you we have to explain you, you just aren't funny.

Tell that to the guys who developed TrustZone technology.

Trustzone isn't AMT; it's borderline orthogonal. Trustzone is just an extra address bit that's only set in higher privileged modes (the "secure" modes in ARM). Most boards like this boot into end user controlled code while in system monitor mode, or a mode that allows you access to it trivially.

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