Struct x86::bits64::segmentation::Descriptor64

#[repr(C, packed)]
pub struct Descriptor64 { /* private fields */ }

Entry for IDT, GDT or LDT.

See Intel 3a, Section 3.4.5 “Segment Descriptors”, and Section 3.5.2 “Segment Descriptor Tables in IA-32e Mode”, especially Figure 3-8.

Implementations

impl Descriptor64

pub const NULL: Descriptor64 = Descriptor64 { desc32: Descriptor::NULL, lower: 0, upper: 0, }

pub fn set_base_limit(&mut self, base: u64, limit: u64)

Create a new segment, TSS or LDT descriptor by setting the three base and two limit fields.

pub fn set_selector_offset(&mut self, selector: SegmentSelector, offset: u64)

Creates a new descriptor with selector and offset (for IDT Gate descriptors, e.g. Trap, Interrupts and Task gates)

pub fn set_ist(&mut self, index: u8)

Sets the interrupt stack table index. The 3-bit IST index field that provides an offset into the IST section of the TSS. Using the IST mechanism, the processor loads the value pointed by an IST pointer into the RSP.

Trait Implementations

impl BuildDescriptor<Descriptor64> for DescriptorBuilder

fn finish(&self) -> Descriptor64

impl Clone for Descriptor64

fn clone(&self) -> Descriptor64

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Descriptor64

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

Formats the value using the given formatter.

impl Default for Descriptor64

fn default() -> Descriptor64

Returns the “default value” for a type.

impl Copy for Descriptor64