OSdev how to flush gdt table, protected mode?

Question

Iron

I am writing (trying), my kernel (if you like, then the OS), not so long ago I switched to protected mode. I am not advanced in this matter, not even an amateur, but rather a beginner, an experimenter. The problem is that I do interrupts in the OS (as you know, they do not work in protected mode). I need to load the table gdt, idt, remake, etc. Problem with gdt. As I understand it, the loader that I use (GRUB 2) loads its own global descriptor table, and in order for me to load my own, I need to reset the table that GRUB loaded, flush it. If you wish, someone can tell you how to flush correctly, and if it's not difficult for you, send an example.

Answer 1

I do interrupts in the OS (as you know, they do not work in protected mode)

Seriously?
No need, just upload yours.
https://github.com/jcmvbkbc/multiboot-tests/blob/m...