Changes between Initial Version and Version 1 of boot_loader

Timestamp:

Oct 15, 2014, 12:49:49 PM (10 years ago)

Author:

alain

Comment:

--

boot_loader

@@ +1 @@
+= GIET_VM / Boot-Loader =
+
+The GIET-VM boot-loader is defined in the [source:soft/giet_vm/giet_boot/boot.c 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()''