Is it possible to use CMT inside SGX enclave?

intel / intel-cmt-cat

User space software for Intel(R) Resource Director Technology

http://www.intel.com/content/www/us/en/architecture-and-technology/resource-director-technology.html

Other

692 stars 182 forks source link

Is it possible to use CMT inside SGX enclave? #213

Closed AmbitionXiang closed 1 year ago

AmbitionXiang commented 2 years ago

If results of CMT can only be gotten through untrusted OS, enclaves cannot trust the results. Is it possible to directly get the results inside enclaves without involving OS?

tkanteck commented 2 years ago

I don't think SGX deals with aspects of host OS provided telemetry. CMT is no different to metrics obtained through perf subsystem. Why do you need CMT capability inside a VM/SGX enclave? Is there a practical application for it?

AmbitionXiang commented 2 years ago

Thank you for your reply! I'm thinking about...maybe we can construct an oblivious memory by combining CMT and CAT if they are compatible with SGX.

aleksinx commented 1 year ago

No update for few months. Closing the issue now. Please reopen if you have more questions.