Struct x86::bits64::paging::PML4Entry

#[repr(transparent)]
pub struct PML4Entry(pub u64);

A PML4 Entry consists of an address and a bunch of flags.

Methods

impl PML4Entry

pub fn new(pml4: PAddr, flags: PML4Flags) -> PML4Entry

Creates a new PML4Entry.

Arguments

• pdpt - The physical address of the pdpt table.
• flags- Additional flags for the entry.

pub fn address(self) -> PAddr

Retrieves the physical address in this entry.

pub fn flags(self) -> PML4Flags

pub fn is_present(self) -> bool

Is page present?

pub fn is_writeable(self) -> bool

Read/write; if 0, writes may not be allowed to the 512-GByte region, controlled by this entry (see Section 4.6)

pub fn is_user_mode_allowed(self) -> bool

User/supervisor; if 0, user-mode accesses are not allowed to the 512-GByte region controlled by this entry.

pub fn is_page_write_through(self) -> bool

Page-level write-through; indirectly determines the memory type used to access the page-directory-pointer table referenced by this entry.

pub fn is_page_level_cache_disabled(self) -> bool

Page-level cache disable; indirectly determines the memory type used to access the page-directory-pointer table referenced by this entry.

pub fn is_accessed(self) -> bool

Accessed; indicates whether this entry has been used for linear-address translation.

pub fn is_instruction_fetching_disabled(self) -> bool

If IA32_EFER.NXE = 1, execute-disable. If 1, instruction fetches are not allowed from the 512-GByte region.

Trait Implementations

impl Copy for PML4Entry

impl Clone for PML4Entry

fn clone(&self) -> PML4Entry

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PML4Entry

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

Formats the value using the given formatter.