Module x86::segmentation

source · [−]

Expand description

Functionality to manipulate segment registers, build segement descriptors and selectors.

Re-exports

pub use crate::current::segmentation::load_cs;

Structs

Descriptor

Entry for IDT, GDT or LDT. Provides size and location of a segment.

DescriptorBuilder

Makes building descriptors easier (hopefully).

SegmentSelector

Specifies which element to load into a segment from descriptor tables (i.e., is a index to LDT or GDT table with some additional flags).

Enums

CodeSegmentType

Code Segment types for descriptors. See also Intel 3a, Table 3-1 Code- and Data-Segment Types.

DataSegmentType

Data Segment types for descriptors. See also Intel 3a, Table 3-1 Code- and Data-Segment Types.

SystemDescriptorTypes32

System-Segment and Gate-Descriptor Types 32-bit mode. See also Intel 3a, Table 3-2 System Segment and Gate-Descriptor Types.

SystemDescriptorTypes64

System-Segment and Gate-Descriptor Types 64-bit mode See also Intel 3a, Table 3-2 System Segment and Gate-Descriptor Types.

Traits

BuildDescriptor

GateDescriptorBuilder

Trait that defines the architecture specific functions for building various system segment descriptors which are available on all 16, 32, and 64 bits.

LdtDescriptorBuilder

Trait to define functions that build an architecture specific ldt descriptor. There is no corresponding ldt descriptor type for 16 bit.

SegmentDescriptorBuilder

Trait to define functions that build architecture specific code and data descriptors.

TaskGateDescriptorBuilder

Trait to implement for building a task-gate (this descriptor is not implemented for 64-bit systems since Hardware task switches are not supported in IA-32e mode.).