.global load_gdt
.type load_gdt @function
load_gdt:
    lgdt (%rdi)
.reload_segments:
    pushq $0x8
    leaq .reload_cs(%rip), %rax
    pushq %rax
    retfq
.reload_cs:
    movw $0x10, %ax
    movw %ax, %ds
    movw %ax, %es
    movw %ax, %fs
    movw %ax, %gs
    movw %ax, %ss
    retq
.size load_gdt, . - load_gdt

.global load_tss
.type load_tss @function
load_tss:
    movw $0x30, %ax
    ltr %ax
    retq
.size load_tss, . - load_tss