Changes between Version 60 and Version 61 of boot_procedure

Timestamp:

Mar 10, 2019, 4:01:03 PM (5 years ago)

Author:

alain

Comment:

--

boot_procedure

@@ -162 +162 @@
 A synchonization barrier is used to avoid  access to cluster manager before initialization.
 
-=== D3) Process_zero initialization ===
-
+=== D3) Kernel entry point and process_zero initialization ===
+
+All cores initialise the registers, defining the kernel entry point(s) in case of interrupt, exception or system call.
+This must be done here because the VFS initialization uses RPCs requiring Inter Processor Interrupts.
 In each cluster the core[0] initializes the local process_zero descriptor, containing al kernel threads in a given cluster.
 This include the creation of the local kernel GPT and VSL.
@@ -227 +229 @@
 
 Finally, all cores make the three following actions:
-  * initialise the registers, defining the kernel entry point(s) in case of interrupt, exception or system call.
+
   * set the TICK timer, and unmask interrupts to activate the scheduler.
   * jump to the idle_thread() function, and wait for an useful thread to be scheduled.