> available only on certain devices with "hardware DRM" [1], at least initially. > So I don't think ARM was the first to do this. There's two things going on h

> available only on certain devices with "hardware DRM" [1], at least initially. > So I don't think ARM was the first to do this. There's two things going on here, the "old" thing is secure boot / secure os, which is a hardware/software solution that only allows signed code to be run on devices. I think this is what was meant by the original Netflix announcement. The "new" thing here is hardware memory protection for video data that is there to prevent the CPU, GPU or other engines on the SoC from accessing protected memory and only the display controller is allowed to read it.