Trait GenericPageTableEntry

pub trait GenericPageTableEntry: Bitfield<usize> {
    // Provided methods
    fn present(&self) -> bool { ... }
    fn writable(&self) -> bool { ... }
    fn user(&self) -> bool { ... }
    fn write_through(&self) -> bool { ... }
    fn cache_disabled(&self) -> bool { ... }
    fn accessed(&self) -> bool { ... }
    fn no_execute(&self) -> bool { ... }
    fn set_present(&mut self, value: bool) { ... }
    fn with_present(&mut self, value: bool) -> Self { ... }
    fn set_writable(&mut self, value: bool) { ... }
    fn with_writable(&mut self, value: bool) -> Self { ... }
    fn set_user(&mut self, value: bool) { ... }
    fn with_user(&mut self, value: bool) -> Self { ... }
    fn set_write_through(&mut self, value: bool) { ... }
    fn with_write_through(&mut self, value: bool) -> Self { ... }
    fn set_cache_disabled(&mut self, value: bool) { ... }
    fn with_cache_disabled(&mut self, value: bool) -> Self { ... }
    fn set_accessed(&mut self, value: bool) { ... }
    fn with_accessed(&mut self, value: bool) -> Self { ... }
    fn set_no_execute(&mut self, value: bool) { ... }
    fn with_no_execute(&mut self, value: bool) -> Self { ... }
    fn fmt_fields(&self, f: &mut DebugStruct<'_, '_>) { ... }
}

Available on x86 or x86-64 only.

An entry in a page table at any level.

Provided Methods

fn present(&self) -> bool

P: Indicates that this entry is mapped. Otherwise the whole entry is ignored.

fn writable(&self) -> bool

R/W: Allows writes to this memory region.

fn user(&self) -> bool

U/S: Allows access to this memory region from permission level 3. Otherwise, it is only accessible from levels 0–2.

fn write_through(&self) -> bool

PWT: Enables write-through caching for this memory region.

fn cache_disabled(&self) -> bool

PCD: Disables caching for this memory region.

fn accessed(&self) -> bool

A: Set by the processor when an instruction accesses the memory region.

fn no_execute(&self) -> bool

Available on x86-64 only.

XD/NX: Prevent the processor from executing any instructions in this memory region.

Requires ExtendedFeatureEnableRegister::no_execute.

fn set_present(&mut self, value: bool)

P: Indicates that this entry is mapped. Otherwise the whole entry is ignored.

fn with_present(&mut self, value: bool) -> Self

P: Indicates that this entry is mapped. Otherwise the whole entry is ignored.

fn set_writable(&mut self, value: bool)

R/W: Allows writes to this memory region.

fn with_writable(&mut self, value: bool) -> Self

R/W: Allows writes to this memory region.

fn set_user(&mut self, value: bool)

U/S: Allows access to this memory region from permission level 3. Otherwise, it is only accessible from levels 0–2.

fn with_user(&mut self, value: bool) -> Self

U/S: Allows access to this memory region from permission level 3. Otherwise, it is only accessible from levels 0–2.

fn set_write_through(&mut self, value: bool)

PWT: Enables write-through caching for this memory region.

fn with_write_through(&mut self, value: bool) -> Self

PWT: Enables write-through caching for this memory region.

fn set_cache_disabled(&mut self, value: bool)

PCD: Disables caching for this memory region.

fn with_cache_disabled(&mut self, value: bool) -> Self

PCD: Disables caching for this memory region.

fn set_accessed(&mut self, value: bool)

A: Set by the processor when an instruction accesses the memory region.

fn with_accessed(&mut self, value: bool) -> Self

A: Set by the processor when an instruction accesses the memory region.

fn set_no_execute(&mut self, value: bool)

Available on x86-64 only.

XD/NX: Prevent the processor from executing any instructions in this memory region.

Requires ExtendedFeatureEnableRegister::no_execute.

fn with_no_execute(&mut self, value: bool) -> Self

Available on x86-64 only.

XD/NX: Prevent the processor from executing any instructions in this memory region.

Requires ExtendedFeatureEnableRegister::no_execute.

fn fmt_fields(&self, f: &mut DebugStruct<'_, '_>)

Print this object’s bitfield values. Helper method for Debug implementations.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl GenericPageTableEntry for Level1PageTableEntry

impl GenericPageTableEntry for Level2PageTableEntry