Struct ostd::boot::memory_region::MemoryRegion

pub struct MemoryRegion { /* private fields */ }

The information of initial memory regions that are needed by the kernel. The sections are not guaranteed to not overlap. The region must be page aligned.

Implementations

impl MemoryRegion

pub fn new(base: usize, len: usize, typ: MemoryRegionType) -> Self

Constructs a valid memory region.

pub fn kernel() -> Self

Constructs a memory region where kernel sections are loaded.

Most boot protocols do not mark the place where the kernel loads as unusable. In this case, we need to explicitly construct and append this memory region.

pub fn base(&self) -> usize

The physical address of the base of the region.

pub fn len(&self) -> usize

The length in bytes of the region.

pub fn is_empty(&self) -> bool

Checks whether the region is empty

pub fn typ(&self) -> MemoryRegionType

The type of the region.

pub fn truncate(&self, t: &MemoryRegion) -> Vec<MemoryRegion>

Removes range t from self, resulting in 0, 1 or 2 truncated ranges. We need to have this method since memory regions can overlap.

Trait Implementations

impl Clone for MemoryRegion

fn clone(&self) -> MemoryRegion

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryRegion

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

Formats the value using the given formatter.

impl Ord for MemoryRegion

fn cmp(&self, other: &MemoryRegion) -> Ordering

This method returns an [Ordering] between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for MemoryRegion

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for MemoryRegion

fn partial_cmp(&self, other: &MemoryRegion) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for MemoryRegion

impl Eq for MemoryRegion

impl StructuralPartialEq for MemoryRegion