Struct x86::task::TaskStateSegment

pub struct TaskStateSegment {
    pub reserved: u32,
    pub rsp: [u64; 3],
    pub reserved2: u64,
    pub ist: [u64; 7],
    pub reserved3: u64,
    pub reserved4: u16,
    pub iomap_base: u16,
}

In 64-bit mode the TSS holds information that is not directly related to the task-switch mechanism, but is used for finding kernel level stack if interrupts arrive while in kernel mode.

Fields

reserved: u32

rsp: [u64; 3]

The full 64-bit canonical forms of the stack pointers (RSP) for privilege levels 0-2.

reserved2: u64

ist: [u64; 7]

The full 64-bit canonical forms of the interrupt stack table (IST) pointers.

reserved3: u64

reserved4: u16

iomap_base: u16

The 16-bit offset to the I/O permission bit map from the 64-bit TSS base.

Methods

impl TaskStateSegment

fn new() -> TaskStateSegment

Trait Implementations

impl Debug for TaskStateSegment

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.