kalloc.c File Reference

#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <stdbool.h>
#include "kernel/mm/frame.h"
#include "kernel/mm/vmalloc.h"
#include "kernel/limine_responses.h"
#include "kernel/panic.h"
#include "kernel/mm/kalloc.h"

Functions
size_t	page_align_up (size_t addr)
	Rounds up the given address to the nearest page boundary.
size_t	page_align_down (size_t addr)
	Rounds down the given address to the nearest page boundary.
void *	hhdm_physical_to_virtual (size_t phys)
	Converts a physical address to a virtual address according to the Higher Half Direct Mapping (HHDM) scheme.
size_t	hhdm_virtual_to_physical (void *virt)
	Converts a virtual address to a physical address according to the Higher Half Direct Mapping (HHDM) scheme.
void	kalloc_init ()
	Initializes the kernel memory allocator.

Variables
static size_t	hhdm_offset
	The offset used for Higher Half Direct Mapping (HHDM).

Function Documentation

hhdm_physical_to_virtual()

void * hhdm_physical_to_virtual

(

size_t

phys

)

Converts a physical address to a virtual address according to the Higher Half Direct Mapping (HHDM) scheme.

Parameters

phys	The physical address to convert.

Returns

The virtual address.

hhdm_virtual_to_physical()

size_t hhdm_virtual_to_physical

(

void *

virt

)

Converts a virtual address to a physical address according to the Higher Half Direct Mapping (HHDM) scheme.

Parameters

virt	The virtual address to convert.

Returns

The physical address.

kalloc_init()

void kalloc_init

(

void

)

Initializes the kernel memory allocator.

page_align_down()

size_t page_align_down

(

size_t

addr

)

Rounds down the given address to the nearest page boundary.

Parameters

addr	The address to align.

Returns

The aligned address.

page_align_up()

size_t page_align_up

(

size_t

addr

)

Rounds up the given address to the nearest page boundary.

Parameters

addr	The address to align.

Returns

The aligned address.

Variable Documentation

hhdm_offset

size_t hhdm_offset

static

The offset used for Higher Half Direct Mapping (HHDM).