virtual.h File Reference

Defines a VirtualMemoryManager class for managing virtual memory allocation and mapping to physical memory. More...

#include <stdint.h>
#include <stddef.h>
#include <memory/physical.h>
#include <common/string.h>

Go to the source code of this file.

Classes
struct	MaxOS::memory::VirtualMemoryChunk
	A container for a region of virtual memory that has been allocated by the Virtual Memory Manager. More...
struct	MaxOS::memory::FreeChunk
	A chunk of memory that has been freed and is available for allocation. A node in a linked list. More...
struct	MaxOS::memory::VirtualMemoryRegion
	A region of virtual memory containing multiple chunks (should fit in one page). More...
class	MaxOS::memory::VirtualMemoryManager
	Manages the virtual memory of the system and provides functions to allocate and free memory in the virtual address space. More...

Typedefs
typedef enum MaxOS::memory::VirtualFlags	MaxOS::memory::virtual_flags_t
	Alias for VirtualFlags enum.
typedef struct MaxOS::memory::VirtualMemoryChunk	MaxOS::memory::virtual_memory_chunk_t
	Alias for VirtualMemoryChunk struct.
typedef struct MaxOS::memory::FreeChunk	MaxOS::memory::free_chunk_t
	Alias for FreeChunk struct.
typedef struct PACKED MaxOS::memory::VirtualMemoryRegion	MaxOS::memory::virtual_memory_region_t
	Alias for VirtualMemoryRegion struct.

Enumerations
enum	MaxOS::memory::VirtualFlags { MaxOS::memory::RESERVE = (1 << 9) , MaxOS::memory::SHARED = (1 << 10) }
	Flags for chunks used in virtual memory allocation. More...

Detailed Description

Defines a VirtualMemoryManager class for managing virtual memory allocation and mapping to physical memory.

Date

11th February 2024

Author

Max Tyson

Definition in file virtual.h.

Typedef Documentation

virtual_flags_t

MaxOS::memory::virtual_flags_t

Alias for VirtualFlags enum.

See also

PageFlags

Note

0 - (1 << 8) are reserved for the page flags

virtual_memory_chunk_t

MaxOS::memory::virtual_memory_chunk_t

Alias for VirtualMemoryChunk struct.

See also

VirtualFlags

virtual_memory_region_t

MaxOS::memory::virtual_memory_region_t

Alias for VirtualMemoryRegion struct.

Note

This stores the metadata for the chunks, not the actual memory they represent. (ie chunks are not slices of this region)

Enumeration Type Documentation

VirtualFlags

enum MaxOS::memory::VirtualFlags

Flags for chunks used in virtual memory allocation.

Enumerator
RESERVE	Reserve the memory but do not map any physical memory to it.
SHARED	The memory is shared between multiple processes.

Definition at line 31 of file virtual.h.

                                  {
 
            RESERVE = (1 << 9),         
            SHARED = (1 << 10),         
 
        } virtual_flags_t;