Enum x86_64::structures::gdt::Descriptor[−][src]

pub enum Descriptor {
    UserSegment(u64),
    SystemSegment(u64, u64),
}
Expand description

A 64-bit mode segment descriptor.

Segmentation is no longer supported in 64-bit mode, so most of the descriptor contents are ignored.

Variants

UserSegment(u64)
Expand description

Descriptor for a code or data segment.

Since segmentation is no longer supported in 64-bit mode, almost all of code and data descriptors is ignored. Only some flags are still used.

SystemSegment(u64, u64)
Expand description

A system segment descriptor such as a LDT or TSS descriptor.

Implementations

impl Descriptor[src]

pub const fn kernel_code_segment() -> Descriptor[src]

Creates a segment descriptor for a 64-bit kernel code segment. Suitable for use with syscall or 64-bit sysenter.

pub const fn kernel_data_segment() -> Descriptor[src]

Creates a segment descriptor for a kernel data segment (32-bit or 64-bit). Suitable for use with syscall or sysenter.

pub const fn user_data_segment() -> Descriptor[src]

Creates a segment descriptor for a ring 3 data segment (32-bit or 64-bit). Suitable for use with sysret or sysexit.

pub const fn user_code_segment() -> Descriptor[src]

Creates a segment descriptor for a 64-bit ring 3 code segment. Suitable for use with sysret or sysexit.

pub fn tss_segment(tss: &'static TaskStateSegment) -> Descriptor[src]

Creates a TSS system descriptor for the given TSS.

Trait Implementations

impl Clone for Descriptor[src]

fn clone(&self) -> Descriptor[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for Descriptor[src]

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl Send for Descriptor

impl Sync for Descriptor

impl Unpin for Descriptor

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

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>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.