Xous Operating System Startup

The Xous operating system is set up by the loader, which is responsible for unpacking data into RAM and setting up processes. It is covered in the Xous Loader section.

The loader reads a binary stream of data located in a tagged format that is discussed in the Arguments Structure section. This arguments structure defines features such as the memory layout, system configuration, and initial process data.

Programs are loaded in flattened formats called MiniELF, which is documented in the MiniELF Format section.

You may also find the following links of interest:

• What happens before boot? fills in the details of everything that happens before the first instruction gets run.
• "Secure Boot" and key ROM layout