GIET_VM / Boot-Loader

The GIET-VM boot-loader is defined in the boot.c​ file.

The boot_init function makes the initialisation in two steps: The first step is sequencially executed by proc[0][0][0], while other processors are in wait state:

• Physical memory allocators initialisation : boot_pmem_init()
• Page table initialisation : boot_ptabs_init()
• Proc[0][0][0] MMU activation
• Private vobjs initialisation : boot_vobjs_init()
• Schedulers initialisation : boot_schedulers init()
• Peripherals initialisation : boot_peripherals_init()
• Kernel & application code loading : boot_elf_load()
• Start all other processors

The second step is executed in parallel by all processors:

• CP0_SCHED register initialisation
• MMU Activation
• Status Register Initialisation (to use the GIET_VM exception handler).
• Jump to kernel_init()