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.code64
.set KERNEL_VMA, 0xffffffff80000000
.set GDT_KERNEL_CS, 0x10
.section .boot64.text, "a"
.global begin_long_mode
begin_long_mode:
mov $GDT_KERNEL_CS, %ax
mov %ax, %ds
mov %ax, %es
mov %ax, %ss
mov %ax, %fs
mov %ax, %gs
add $KERNEL_VMA, %rsp
movabs $jump_main, %rax
jmp *%rax
.section .text
jump_main:
popq %rdi
popq %rsi
call kernel_main
hlt
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