2022-07-05 19:53:39 +03:00
|
|
|
section .data
|
|
|
|
|
|
|
|
|
|
align 16
|
|
|
|
|
linux_gdt:
|
|
|
|
|
dq 0
|
|
|
|
|
|
|
|
|
|
dq 0
|
|
|
|
|
|
|
|
|
|
dw 0xffff
|
|
|
|
|
dw 0x0000
|
|
|
|
|
db 0x00
|
2023-09-08 20:35:32 +03:00
|
|
|
db 10011011b
|
2022-07-05 19:53:39 +03:00
|
|
|
db 11001111b
|
|
|
|
|
db 0x00
|
|
|
|
|
|
|
|
|
|
dw 0xffff
|
|
|
|
|
dw 0x0000
|
|
|
|
|
db 0x00
|
2023-09-08 20:35:32 +03:00
|
|
|
db 10010011b
|
2022-07-05 19:53:39 +03:00
|
|
|
db 11001111b
|
|
|
|
|
db 0x00
|
|
|
|
|
|
|
|
|
|
.end:
|
|
|
|
|
|
|
|
|
|
align 16
|
|
|
|
|
linux_gdt_ptr:
|
|
|
|
|
dw (linux_gdt.end - linux_gdt) - 1
|
|
|
|
|
dd 0
|
|
|
|
|
|
|
|
|
|
bits 32
|
|
|
|
|
|
|
|
|
|
section .text
|
|
|
|
|
|
|
|
|
|
global linux_spinup
|
|
|
|
|
linux_spinup:
|
|
|
|
|
call .p0
|
|
|
|
|
.p0:
|
|
|
|
|
pop eax
|
|
|
|
|
lea ebx, [eax - (linux_spinup.p0 - linux_gdt_ptr)]
|
|
|
|
|
lea ecx, [eax - (linux_spinup.p0 - linux_gdt)]
|
|
|
|
|
mov [ebx+2], ecx
|
|
|
|
|
|
|
|
|
|
lgdt [ebx]
|
|
|
|
|
|
|
|
|
|
push 0x10
|
|
|
|
|
call .p1
|
|
|
|
|
.p1:
|
|
|
|
|
add dword [esp], .fj - .p1
|
|
|
|
|
retfd
|
|
|
|
|
|
|
|
|
|
.fj:
|
|
|
|
|
mov eax, 0x18
|
|
|
|
|
mov ds, eax
|
|
|
|
|
mov es, eax
|
|
|
|
|
mov fs, eax
|
|
|
|
|
mov gs, eax
|
|
|
|
|
mov ss, eax
|
|
|
|
|
|
|
|
|
|
xor ebp, ebp
|
|
|
|
|
xor edi, edi
|
|
|
|
|
xor ebx, ebx
|
|
|
|
|
|
|
|
|
|
mov esi, [esp+8] ; boot_params
|
|
|
|
|
|
|
|
|
|
cld
|
|
|
|
|
|
|
|
|
|
jmp [esp+4]
|
