Struct VirtualPage 

#[repr(transparent)]
pub struct VirtualPage<S: PageSize>(MemoryPage<S>);

Virtual memory page base for size S.

A VirtualPage<S> represents the page-aligned base of a virtual page of size S (S::SIZE bytes). It is a thin wrapper over MemoryPage<S> with virtual-address intent.

Semantics

• base() returns the page base as a VirtualAddress.
• join(off) combines this base with a MemoryAddressOffset<S> to form a full VirtualAddress.

Invariants

• The low S::SHIFT bits of the base are always zero (page aligned).

Examples

let va = VirtualAddress::new(0xFFFF_FFFF_8000_1234);
let vp = va.page::<Size4K>();
assert_eq!(vp.base().as_u64() & (Size4K::SIZE - 1), 0);
let va2 = vp.join(va.offset::<Size4K>());
assert_eq!(va2.as_u64(), va.as_u64());

Tuple Fields

0: MemoryPage<S>

Implementations

impl<S: PageSize> VirtualPage<S>

pub const fn from_page(p: MemoryPage<S>) -> Self

pub const fn base(self) -> VirtualAddress

pub const fn join(self, off: MemoryAddressOffset<S>) -> VirtualAddress

Trait Implementations

impl<S: Clone + PageSize> Clone for VirtualPage<S>

fn clone(&self) -> VirtualPage<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: PageSize> Debug for VirtualPage<S>

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

Formats the value using the given formatter.

impl<S> From<MemoryPage<S>> for VirtualPage<S>

where S: PageSize,

fn from(p: MemoryPage<S>) -> Self

Converts to this type from the input type.

impl<S> From<VirtualPage<S>> for VirtualAddress

where S: PageSize,

fn from(value: VirtualPage<S>) -> Self

Converts to this type from the input type.

impl<S: Hash + PageSize> Hash for VirtualPage<S>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<S: Ord + PageSize> Ord for VirtualPage<S>

fn cmp(&self, other: &VirtualPage<S>) -> 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,

Restrict a value to a certain interval.

impl<S: PartialEq + PageSize> PartialEq for VirtualPage<S>

fn eq(&self, other: &VirtualPage<S>) -> 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<S: PartialOrd + PageSize> PartialOrd for VirtualPage<S>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<S: Copy + PageSize> Copy for VirtualPage<S>

impl<S: Eq + PageSize> Eq for VirtualPage<S>

impl<S: PageSize> StructuralPartialEq for VirtualPage<S>