Linux Now Disabling TPM Bus Encryption By Default For Performance Reasons

Introduced last year in Linux 6.10 was TPM bus encryption and integration protection for Trusted Platform Module 2 (TPM2) handling. The intent was on better TPM security after a prior security demonstration showed TPM key recovery from Microsoft Windows BitLocker as well as TPM sniffing attacks. Shortly after being merged it was limited to just an x86_64 default where it had been tested the most at the time. Now more than one year later, this feature is being disabled by default in the mainline Linux kernel...