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Also from the comments, ARMv8 requires AES instructions, so having the drivers around won't be a problem in the future. This appears true from the ARMv8-A docs,

Also from the comments, ARMv8 requires AES instructions, so having the drivers around won't be a problem in the future. This appears true from the ARMv8-A docs, but can someone more knowledgeable confirm this? Supposedly this is why the Nexus 9 (which is ARMv8-A) does have default encryption and suffers no performance hit.

mschuster91 12y ago
> Also from the comments, ARMv8 requires AES instructions Just random guessing around (I have no actual knowledge)... if the mentioned encryption drivers are required for performant cryptography, then it is likely that the encryption is done by a separate core/chip/soc module, totally transparent to the CPU and maybe also battery-saving.
- ethbro 12y ago
  If so, I imagine it would also fit nicely with big.LITTLE designs.
- magicalist 12y ago
  Right, sorry, I think the claim is that since ARMv8 requires AES instructions, it no longer needs separate encryption hardware, and the proof is that the Nexus 9 supposedly doesn't have the encryption performance hit that the Nexus 6 does. Native instructions would also require one less closed-source driver, which is also a win.