This transition has already begun and is to large extent already usable on many platforms. Macs have secure enclave, Android has Trusty and Strongbox, Intel TPM

This transition has already begun and is to large extent already usable on many platforms. Macs have secure enclave, Android has Trusty and Strongbox, Intel TPM, ARM Trustzone, etc. Some of these are just implemented as VMs on same core though, so could in theory be vulnerable to same type of attack.