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use structures::gdt::SegmentSelector;
#[derive(Debug)]
#[repr(C, packed)]
pub struct DescriptorTablePointer {
pub limit: u16,
pub base: u64,
}
pub unsafe fn lgdt(gdt: &DescriptorTablePointer) {
asm!("lgdt ($0)" :: "r" (gdt) : "memory");
}
pub unsafe fn lldt(ldt: &DescriptorTablePointer) {
asm!("lldt ($0)" :: "r" (ldt) : "memory");
}
pub unsafe fn lidt(idt: &DescriptorTablePointer) {
asm!("lidt ($0)" :: "r" (idt) : "memory");
}
pub unsafe fn load_tss(sel: SegmentSelector) {
asm!("ltr $0" :: "r" (sel.0));
}