mem_layout.h File Reference

Memory layout definitions. More...

#include <stdint.h>

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Typedefs
typedef uint64_t	phy_addr
	Type for representing physical addresses.
typedef uint64_t	virt_addr
	Type for representing virtual addresses.

Enumerations
enum	mem_layout_bases { USER_SPACE = 0x0000000000000000UL , KERNEL_BASE = 0xFFFF000000000000UL }
	Memory layout base addresses. More...

Functions
void	update_kernel_base_va (void)
	Update the kernel base virtual address.
phy_addr	va_to_pa (virt_addr v_addr)
	Convert a virtual address to a physical address.
virt_addr	pa_to_va (phy_addr p_addr)
	Convert a physical address to a virtual address.

Detailed Description

Memory layout definitions.

Defines the memory layout for the kernel.

Author

Abhin Parekadan Jose

Date

2026-05-25

Enumeration Type Documentation

mem_layout_bases

enum mem_layout_bases

Memory layout base addresses.

Enumerator
USER_SPACE	Start of user space (0x0)
KERNEL_BASE	Base of kernel space

Function Documentation

pa_to_va()

virt_addr pa_to_va

(

phy_addr

p_addr

)

Convert a physical address to a virtual address.

Parameters

p_addr

The physical address to convert.

Returns

The corresponding virtual address.

va_to_pa()

phy_addr va_to_pa

(

virt_addr

v_addr

)

Convert a virtual address to a physical address.

Parameters

v_addr

The virtual address to convert.

Returns

The corresponding physical address.