Struct x86_64::structures::paging::page_table::PageTableFlags [−][src]
Possible flags for a page table entry.
Implementations
impl PageTableFlags
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pub const PRESENT: PageTableFlags
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Specifies whether the mapped frame or page table is loaded in memory.
pub const WRITABLE: PageTableFlags
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Controls whether writes to the mapped frames are allowed.
If this bit is unset in a level 1 page table entry, the mapped frame is read-only. If this bit is unset in a higher level page table entry the complete range of mapped pages is read-only.
pub const USER_ACCESSIBLE: PageTableFlags
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Controls whether accesses from userspace (i.e. ring 3) are permitted.
pub const WRITE_THROUGH: PageTableFlags
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If this bit is set, a “write-through” policy is used for the cache, else a “write-back” policy is used.
pub const NO_CACHE: PageTableFlags
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Disables caching for the pointed entry is cacheable.
pub const ACCESSED: PageTableFlags
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Set by the CPU when the mapped frame or page table is accessed.
pub const DIRTY: PageTableFlags
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Set by the CPU on a write to the mapped frame.
pub const HUGE_PAGE: PageTableFlags
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Specifies that the entry maps a huge frame instead of a page table. Only allowed in P2 or P3 tables.
pub const GLOBAL: PageTableFlags
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Indicates that the mapping is present in all address spaces, so it isn’t flushed from the TLB on an address space switch.
pub const BIT_9: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_10: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_11: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_52: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_53: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_54: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_55: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_56: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_57: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_58: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_59: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_60: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_61: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const BIT_62: PageTableFlags
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Available to the OS, can be used to store additional data, e.g. custom flags.
pub const NO_EXECUTE: PageTableFlags
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Forbid code execution from the mapped frames.
Can be only used when the no-execute page protection feature is enabled in the EFER register.
pub const fn empty() -> PageTableFlags
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Returns an empty set of flags
pub const fn all() -> PageTableFlags
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Returns the set containing all flags.
pub const fn bits(&self) -> u64
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Returns the raw value of the flags currently stored.
pub fn from_bits(bits: u64) -> Option<PageTableFlags>
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Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
pub const fn from_bits_truncate(bits: u64) -> PageTableFlags
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Convert from underlying bit representation, dropping any bits that do not correspond to flags.
pub const unsafe fn from_bits_unchecked(bits: u64) -> PageTableFlags
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Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
pub const fn is_empty(&self) -> bool
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Returns true
if no flags are currently stored.
pub const fn is_all(&self) -> bool
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Returns true
if all flags are currently set.
pub const fn intersects(&self, other: PageTableFlags) -> bool
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Returns true
if there are flags common to both self
and other
.
pub const fn contains(&self, other: PageTableFlags) -> bool
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Returns true
all of the flags in other
are contained within self
.
pub fn insert(&mut self, other: PageTableFlags)
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Inserts the specified flags in-place.
pub fn remove(&mut self, other: PageTableFlags)
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Removes the specified flags in-place.
pub fn toggle(&mut self, other: PageTableFlags)
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Toggles the specified flags in-place.
pub fn set(&mut self, other: PageTableFlags, value: bool)
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Inserts or removes the specified flags depending on the passed value.
Trait Implementations
impl Binary for PageTableFlags
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impl BitAnd<PageTableFlags> for PageTableFlags
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type Output = PageTableFlags
The resulting type after applying the &
operator.
fn bitand(self, other: PageTableFlags) -> PageTableFlags
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Returns the intersection between the two sets of flags.
impl BitAndAssign<PageTableFlags> for PageTableFlags
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fn bitand_assign(&mut self, other: PageTableFlags)
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Disables all flags disabled in the set.
impl BitOr<PageTableFlags> for PageTableFlags
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type Output = PageTableFlags
The resulting type after applying the |
operator.
fn bitor(self, other: PageTableFlags) -> PageTableFlags
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Returns the union of the two sets of flags.
impl BitOrAssign<PageTableFlags> for PageTableFlags
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fn bitor_assign(&mut self, other: PageTableFlags)
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Adds the set of flags.
impl BitXor<PageTableFlags> for PageTableFlags
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type Output = PageTableFlags
The resulting type after applying the ^
operator.
fn bitxor(self, other: PageTableFlags) -> PageTableFlags
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Returns the left flags, but with all the right flags toggled.
impl BitXorAssign<PageTableFlags> for PageTableFlags
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fn bitxor_assign(&mut self, other: PageTableFlags)
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Toggles the set of flags.
impl Clone for PageTableFlags
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fn clone(&self) -> PageTableFlags
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Copy for PageTableFlags
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impl Debug for PageTableFlags
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impl Eq for PageTableFlags
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impl Extend<PageTableFlags> for PageTableFlags
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fn extend<T: IntoIterator<Item = PageTableFlags>>(&mut self, iterator: T)
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pub fn extend_one(&mut self, item: A)
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pub fn extend_reserve(&mut self, additional: usize)
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impl FromIterator<PageTableFlags> for PageTableFlags
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fn from_iter<T: IntoIterator<Item = PageTableFlags>>(
iterator: T
) -> PageTableFlags
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iterator: T
) -> PageTableFlags
impl Hash for PageTableFlags
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fn hash<__H: Hasher>(&self, state: &mut __H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl LowerHex for PageTableFlags
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impl Not for PageTableFlags
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type Output = PageTableFlags
The resulting type after applying the !
operator.
fn not(self) -> PageTableFlags
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Returns the complement of this set of flags.
impl Octal for PageTableFlags
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impl Ord for PageTableFlags
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fn cmp(&self, other: &PageTableFlags) -> Ordering
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#[must_use]pub fn max(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn min(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self
1.50.0[src]
impl PartialEq<PageTableFlags> for PageTableFlags
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fn eq(&self, other: &PageTableFlags) -> bool
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fn ne(&self, other: &PageTableFlags) -> bool
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impl PartialOrd<PageTableFlags> for PageTableFlags
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fn partial_cmp(&self, other: &PageTableFlags) -> Option<Ordering>
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#[must_use]pub fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn le(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn gt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn ge(&self, other: &Rhs) -> bool
1.0.0[src]
impl StructuralEq for PageTableFlags
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impl StructuralPartialEq for PageTableFlags
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impl Sub<PageTableFlags> for PageTableFlags
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type Output = PageTableFlags
The resulting type after applying the -
operator.
fn sub(self, other: PageTableFlags) -> PageTableFlags
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Returns the set difference of the two sets of flags.
impl SubAssign<PageTableFlags> for PageTableFlags
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fn sub_assign(&mut self, other: PageTableFlags)
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Disables all flags enabled in the set.
impl UpperHex for PageTableFlags
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Auto Trait Implementations
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,