Implementing trusted executing environments across multiple processor devices

A system, comprising:

• one or more first processors;
• and
• memory storing instructions that, as a result of being executed by the one or more first processors, cause the system to:
• cause a first memory region of one or more second processors to be protected such that once a compute engine of the one or more first processors accesses the first memory region, the compute engine is to be prevented from accessing memory outside of the first memory region and one or more other compute engines of the one or more first processors are prevented from accessing the first memory region;
• and
• negotiate a cryptographic key with the one or more second processors.

A method, comprising:

• allocating a protected memory region of a first processor;
• detecting an access of the protected memory region by a compute engine of the first processor;
• responsive to the detecting,
• preventing the compute engine of the first processor from accessing memory outside of the protected memory region preventing a second processor from accessing memory inside the protected memory region;
• and
• negotiating a cryptographic key with the second processor.

A system, comprising:

• one or more graphics processing units (GPUs) to:
• cause a first memory region of the one or more GPUs to be protected such that once a compute engine of the one or more GPUs accesses the first memory region, the compute engine is prevented from accessing memory outside of the first memory region and one or more processors are prevented from accessing the first memory region;
• and
• negotiate a cryptographic key with the one or more processors.