3 ms·

That already happens, but they always seem to rejoin the CPU. GPUs are headed that way. Math coprocessors went back a long time ago. https://en.wikipedia.org/w

• est31 6y ago
  You can have the CPU share the die with the secure cores, but you'd need to figure out a lot of complexity, like dealing with memory access pattern leakage due to a shared memory bus. The less things you share, the less the performant parts need to care about security, and the secure parts need to care about performance.