rulimine/common/lib/spinup.asm_uefi_x86_64

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section .rodata
invalid_idt:
dq 0, 0
section .text
extern flush_irqs
%macro push32 1
sub rsp, 4
mov dword [rsp], %1
%endmacro
extern gdt
global common_spinup
bits 64
common_spinup:
cli
lgdt [rel gdt]
lidt [rel invalid_idt]
lea rbx, [rel .reload_cs]
push 0x28
push rbx
retfq
.reload_cs:
mov eax, 0x30
mov ds, eax
mov es, eax
mov fs, eax
mov gs, eax
mov ss, eax
push r8
push r9
push rcx
push rdx
call flush_irqs
pop rdx
pop rcx
pop r9
pop r8
mov rbp, rsp
cmp esi, 4
jle .no_stack_args
.push_stack_args:
dec esi
mov eax, [rbp + 8 + rsi*8]
push32 eax
test esi, esi
jnz .push_stack_args
.no_stack_args:
push32 r9d
push32 r8d
push32 ecx
push32 edx
lea rbx, [rel .go_32]
push 0x18
push rbx
retfq
bits 32
.go_32:
mov eax, 0x20
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
xor eax, eax
lldt ax
mov eax, 0x00000011
mov cr0, eax
mov ecx, 0xc0000080
xor eax, eax
xor edx, edx
wrmsr
xor eax, eax
mov cr4, eax
call edi