pub unsafe fn load_tss(sel: SegmentSelector)Expand description
Load the task state register using the ltr instruction.
Note that loading a TSS segment selector marks the corresponding TSS
Descriptor in the GDT as “busy”, preventing it from being loaded again
(either on this CPU or another CPU). TSS structures (including Descriptors
and Selectors) should generally be per-CPU. See
tss_segment
for more information.
Calling load_tss with a busy TSS selector results in a #GP exception.
§Safety
This function is unsafe because the caller must ensure that the given
SegmentSelector points to a valid TSS entry in the GDT and that the
corresponding data in the TSS is valid.