Struct GS

pub struct GS;

GS Segment

Only base is used in 64-bit mode, see Segment64. In kernel-mode, the GS base often points to a per-cpu kernel data structure.

Implementations

impl GS

pub unsafe fn swap()

Swap KernelGsBase MSR and GsBase MSR.

Safety

This function is unsafe because the caller must ensure that the swap operation cannot lead to undefined behavior.

Trait Implementations

impl Debug for GS

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

Formats the value using the given formatter.

impl Segment for GS

fn get_reg() -> SegmentSelector

Returns the current value of the segment register.

unsafe fn set_reg(sel: SegmentSelector)

Reload the segment register. Depending on the segment, this may also reconfigure the corresponding segment.

impl Segment64 for GS

const BASE: Msr = GsBase::MSR

MSR containing the segment base. This MSR can be used to set the base when CR4.FSGSBASE is not set.

fn read_base() -> VirtAddr

Reads the segment base address

unsafe fn write_base(base: VirtAddr)

Writes the segment base address