Struct VirtualMemoryMap

pub struct VirtualMemoryMap {
    pub pmarea: MemoryArea,
    pub vmarea: MemoryArea,
    pub permissions: usize,
    pub is_shared: bool,
}

Represents a mapping between physical and virtual memory areas.

This structure defines the relationship between a physical memory area and its corresponding virtual memory area in the kernel’s memory management system.

Fields

• pmarea - The physical memory area that is being mapped
• vmarea - The virtual memory area where the physical memory is mapped to

Fields

pmarea: MemoryArea

vmarea: MemoryArea

permissions: usize

is_shared: bool

Implementations

impl VirtualMemoryMap

pub fn new( pmarea: MemoryArea, vmarea: MemoryArea, permissions: usize, is_shared: bool, ) -> Self

Creates a new virtual memory map with the given physical and virtual memory areas.

Arguments

• pmarea - The physical memory area to map
• vmarea - The virtual memory area to map to
• permissions - The permissions to set for the virtual memory area
• is_shared - Whether this memory map should be shared between tasks

Returns

A new virtual memory map with the given physical and virtual memory areas.

pub fn get_paddr(&self, vaddr: usize) -> Option<usize>

Returns the physical address corresponding to the given virtual address.

Arguments

• vaddr - The virtual address to translate

Returns

The physical address corresponding to the given virtual address, if it exists. If the virtual address is not part of the memory map, None is returned.

Trait Implementations

impl Clone for VirtualMemoryMap

fn clone(&self) -> VirtualMemoryMap

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VirtualMemoryMap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for VirtualMemoryMap

fn eq(&self, other: &VirtualMemoryMap) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for VirtualMemoryMap

impl StructuralPartialEq for VirtualMemoryMap