https://docs.amd.com/v/u/en-US/xapp1079-amp-bare-metal-cortex-a9
Simple AMP: Bare-Metal System Running on Both Cortex-A9 Processors Application Note (XAPP1079) -...
Describes a method of starting up both Cortex-A9 processors in the Zynq-7000 AP SoC, each running its own operating system and application.