Struct page_table::PageTable

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#[repr(C, align(4096))]
pub struct PageTable<Meta: MmuMeta>(_);

Expand description

页表。

Implementations

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impl<Meta: MmuMeta> PageTable<Meta>

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pub const ZERO: Self = _

空白页表。

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pub const fn len(&self) -> usize

页表长度。

总长度，而非有效项的数量。这是一个常量。

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pub fn is_empty(&self) -> bool

如果页表中至少一个项有效，返回 true。

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pub fn as_ptr(&self) -> *const Pte<Meta>

获取指向第一个页表项的指针。

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pub fn set_entry(
 &mut self,
 vaddr: VAddr,
 entry: Pte<Meta>,
 level: usize
) -> Result<(), EntryError>

将此页表视为一个 level 级页表，设置一个页表项。

页表项保证查找虚地址 vaddr 时能找到页表项 entry 指向的物理页（可以是页或子页表）。

Errors

如果 level 大于当前方案下最大的页表级别，产生 InvalidLevel；
如果 entry 在 level 级页表中表示一个巨页但物理页号未对齐，产生 LeafMisaligned；

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pub fn query_once(&self, addr: VAddr, level: u8) -> PtQuery<Meta>

查询页表一次。

Trait Implementations

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impl<Meta: MmuMeta> Index<usize> for PageTable<Meta>

type Output = Pte<Meta>

The returned type after indexing.

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fn index(&self, index: usize) -> &Self::Output

Performs the indexing (container[index]) operation. Read more

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impl<Meta: MmuMeta> IndexMut<usize> for PageTable<Meta>

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fn index_mut(&mut self, index: usize) -> &mut Self::Output

Performs the mutable indexing (container[index]) operation. Read more

Auto Trait Implementations

impl<Meta> RefUnwindSafe for PageTable<Meta> where
Meta: RefUnwindSafe,

impl<Meta> Send for PageTable<Meta> where
Meta: Send,

impl<Meta> Sync for PageTable<Meta> where
Meta: Sync,

impl<Meta> Unpin for PageTable<Meta> where
Meta: Unpin,

impl<Meta> UnwindSafe for PageTable<Meta> where
Meta: UnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct page_table::PageTable

Implementations

impl<Meta: MmuMeta> PageTable<Meta>

pub const ZERO: Self = _

pub const fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn as_ptr(&self) -> *const Pte<Meta>

pub fn set_entry(
    &mut self,
    vaddr: VAddr,
    entry: Pte<Meta>,
    level: usize
) -> Result<(), EntryError>

Errors

pub fn query_once(&self, addr: VAddr, level: u8) -> PtQuery<Meta>

Trait Implementations

impl<Meta: MmuMeta> Index<usize> for PageTable<Meta>

type Output = Pte<Meta>

fn index(&self, index: usize) -> &Self::Output

impl<Meta: MmuMeta> IndexMut<usize> for PageTable<Meta>

fn index_mut(&mut self, index: usize) -> &mut Self::Output

Auto Trait Implementations

impl<Meta> RefUnwindSafe for PageTable<Meta> where
Meta: RefUnwindSafe,

impl<Meta> Send for PageTable<Meta> where
Meta: Send,

impl<Meta> Sync for PageTable<Meta> where
Meta: Sync,

impl<Meta> Unpin for PageTable<Meta> where
Meta: Unpin,

impl<Meta> UnwindSafe for PageTable<Meta> where
Meta: UnwindSafe,

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct page_table::PageTable

Implementations

impl<Meta: MmuMeta> PageTable<Meta>

pub const ZERO: Self = _

pub const fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn as_ptr(&self) -> *const Pte<Meta>

pub fn set_entry( &mut self, vaddr: VAddr, entry: Pte<Meta>, level: usize) -> Result<(), EntryError>

pub fn query_once(&self, addr: VAddr, level: u8) -> PtQuery<Meta>

Trait Implementations

impl<Meta: MmuMeta> Index<usize> for PageTable<Meta>

type Output = Pte<Meta>

fn index(&self, index: usize) -> &Self::Output

impl<Meta: MmuMeta> IndexMut<usize> for PageTable<Meta>

fn index_mut(&mut self, index: usize) -> &mut Self::Output

Auto Trait Implementations

impl<Meta> RefUnwindSafe for PageTable<Meta> where Meta: RefUnwindSafe,

impl<Meta> Send for PageTable<Meta> where Meta: Send,

impl<Meta> Sync for PageTable<Meta> where Meta: Sync,

impl<Meta> Unpin for PageTable<Meta> where Meta: Unpin,

impl<Meta> UnwindSafe for PageTable<Meta> where Meta: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub fn set_entry(
&mut self,
vaddr: VAddr,
entry: Pte<Meta>,
level: usize
) -> Result<(), EntryError>

impl<Meta> RefUnwindSafe for PageTable<Meta> where
Meta: RefUnwindSafe,

impl<Meta> Send for PageTable<Meta> where
Meta: Send,

impl<Meta> Sync for PageTable<Meta> where
Meta: Sync,

impl<Meta> Unpin for PageTable<Meta> where
Meta: Unpin,

impl<Meta> UnwindSafe for PageTable<Meta> where
Meta: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,