How to do identity mapping?

[ApplePieCodes]

I have set up physical memory management in my kernel, and wish to setup a page table. I have setup the following structs
https://pastebin.com/3pz23BDA. How do I identity map it?
Edit: I am using limine, which i have heard sets up identity mapping for you. do i even need to do vmm?

[Octocontrabass]

How do I identity map it?

...Set up page tables where the virtual and physical addresses are equal? You might have to explain the problem in a bit more detail if that doesn't answer your question.

Edit: I am using limine, which i have heard sets up identity mapping for you. do i even need to do vmm?

You do if you ever want to use something other than identity mapping.

[ApplePieCodes]

I guess I'll just leave it as limine set it then