vmalloc.c File Reference

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

Functions
void	vmalloc_init ()
	Initializes the virtual memory allocator. This should be called after frame allocator and paging are initialized.
void *	vmalloc (size_t size)
	Allocates size bytes of virtual memory and returns a pointer to it. The allocation is aligned to VMALLOC_ALIGNMENT. It panics if out of memory.
void	vfree (void *addr)
	Frees the virtual memory allocated at addr. (TODO: stop using bump allocator)

Variables
uint8_t *	bump_start
	The starting address of the bump allocator.
uint8_t *	bump_next
	The next available address in the bump allocator.
uint8_t *	bump_end
	The ending address of the bump allocator. (exclusive)

Function Documentation

vfree()

void vfree

(

void *

addr

)

Frees the virtual memory allocated at addr. (TODO: stop using bump allocator)

vmalloc()

void * vmalloc

(

size_t

size

)

Allocates size bytes of virtual memory and returns a pointer to it. The allocation is aligned to VMALLOC_ALIGNMENT. It panics if out of memory.

vmalloc_init()

void vmalloc_init

(

void

)

Initializes the virtual memory allocator. This should be called after frame allocator and paging are initialized.

Variable Documentation

bump_end

uint8_t* bump_end

The ending address of the bump allocator. (exclusive)

bump_next

uint8_t* bump_next

The next available address in the bump allocator.

bump_start

uint8_t* bump_start

The starting address of the bump allocator.