M G-L - Posted 11 Hours Ago
From looking up stuff, it seems that the ccp driver is probably not needed for the vast majority of use cases. It doesn't seem to be related to aes-ni, but to other forms of crypto acceleration.
As far as I have read posts regarding meltdown and spectre, I understand that AMD
1. also has built-in a sort of management engine called platform security srocessor (PSP) like Intel.
2. Part of that engine is a TPM (trusted platform module). And access to this module is made available for externel use, so it can be used by operating system.
So "disabling ccp" would just mean, you do not have a TPM in your system. This explains why it has no impact on AES encryption speed.