How to declare a a block of memory as Write-back type & bind a virtual address to that?

alam

Using the sample code from 12.6. Creating MTRRs from a C program using ioctl()’s
I can create a write-back type memory range. However, I was wondering if anyone can tell me if it is possible to bind a virtual address to that specific write-memory block address?

I tried to use mmap to bind the virtual address of a structure with the physical base address of the MTRR region. Here is the code that I tried. https://pastebin.com/TjPaPTiu That however doesn’t seem to do anything. I could not find any suitable article/topic regarding this. I guess I do not have a clue where to start. Any help?