Struct PageTableEntry

pub struct PageTableEntry { /* private fields */ }

A 64-bit page table entry.

Implementations

impl PageTableEntry

pub const fn new() -> Self

Creates an unused page table entry.

pub const fn is_unused(&self) -> bool

Returns whether this entry is zero.

pub fn set_unused(&mut self)

Sets this entry to zero.

pub const fn flags(&self) -> PageTableFlags

Returns the flags of this entry.

pub fn addr(&self) -> PhysAddr

Returns the physical address mapped by this entry, might be zero.

pub fn frame(&self) -> Result<PhysFrame, FrameError>

Returns the physical frame mapped by this entry.

Returns the following errors:

• FrameError::FrameNotPresent if the entry doesn’t have the PRESENT flag set.
• FrameError::HugeFrame if the entry has the HUGE_PAGE flag set (for huge pages the addr function must be used)

pub fn set_addr(&mut self, addr: PhysAddr, flags: PageTableFlags)

Map the entry to the specified physical address with the specified flags.

pub fn set_frame(&mut self, frame: PhysFrame, flags: PageTableFlags)

Map the entry to the specified physical frame with the specified flags.

pub fn set_flags(&mut self, flags: PageTableFlags)

Sets the flags of this entry.

Trait Implementations

impl Clone for PageTableEntry

fn clone(&self) -> PageTableEntry

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PageTableEntry

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

Formats the value using the given formatter.