The readme file mentioned that "Penglai supports the synchronous and asynchronous cross-enclave communication using the zero-copy memory transferring mechanism". I tried to search about details about the "zero-copy memory transferring mechanism" but failed. I wonder if there are any doc/wiki or paper introducing the zero-copy memory transferring mechanism? Thanks.
P.S. I have tried the IPC demo in Penglai-Enclave-TVM and get the following result, but I could not fully understand the mechanism behind it. Many thanks if you can provide me with some introduction level docs.