I am trying to understand exit points from kernel mode to user mode. I believe
this happens when the scheduler is invoked, there are interrupts, exceptions,
or the kernel is executing system call in process context.
Is there a single function which is called in the ppc kernel when the mode is
switched back to user mode ?
I have linux 2.6.16.21 kernel running on a 4-way p550 IBM pSeries with POWER5
processors. Everytime before a process begins executing in user mode I want to
execute a special SMT thread priority assembler instruction.
What code files should I be looking at, is there one place this can be done?
Any tips are appreciated.
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
