On Mon, Aug 10, 2020 at 04:08:46PM -0700, Andy Lutomirski wrote: > What am I missing? I still don't really understand why we are > supporting this mechanism at all. Just the asm code to invoke the > callback seems to be about half of the entire function. Because the Intel SDK (and other SDKs?) wants to use the host stack to pass parameters out of the enclave.