Hello All,
My problem is i want to find a fast way to switch from user mode to kernel mode. I read about the sysenter instructions on the net. I want to know a method to find whether my OS uses sysenter or software interrupt method (int 0x80). Can anybody please help me in finding this? Also i would really appreciate if you can suggest any other fast way to change from user to kernel mode... Thank you...

Thanks,
Bala