Instructions and logic to fork processes of secure enclaves and establish child enclaves in a secure enclave page cache

A processor comprising:

• an enclave page cache to store a first secure control structure data in a first secure storage area allocated to a corresponding first secure enclave of a parent process, and to store a second secure control structure data in a second secure storage area allocated to a corresponding second secure enclave of a child process;
• a decode stage to decode a first instruction for execution by said processor, the first instruction specifying said second secure storage area as an operand;
• and
• one or more execution units, responsive to the decoded first instruction, to:
• copy the first secure control structure from the first secure storage area to the second secure storage area;
• initialize said second secure control structure data with a unique enclave identifier associated with the child process;
• and
• record a second secure control structure link to the first secure control structure data in the second secure control structure data.