Struct HhdmPhysMapper 

pub struct HhdmPhysMapper;

PhysMapper implementation for kernels with a higher-half direct map (HHDM).

This type allows you to convert a physical address to a usable pointer in the kernel’s virtual address space by adding HHDM_BASE to the physical address.

Safety

• The HHDM mapping must be present and cover the referenced physical range.
• The returned pointer must only be used for valid, mapped, and writable memory.

Example

use kernel_vmem::{addresses::PhysicalAddress, page_table::pt::PageTable, PhysMapper};
use kernel_alloc::phys_mapper::HhdmPhysMapper;
let phys = PhysicalAddress::new(0x1234_0000);
let mapper = HhdmPhysMapper;
unsafe {
    let table: &mut PageTable = mapper.phys_to_mut(phys);
}

Trait Implementations

impl PhysMapper for HhdmPhysMapper

unsafe fn phys_to_mut<T>(&self, pa: PhysicalAddress) -> &mut T

Map a 4 KiB physical frame and get a mutable reference to type T.