Cleaning up interrupts.s and adding missing IRQs

src/kernel/interrupts.s

@@ -1,84 +1,4 @@
-extern g_idtr
-extern g_gdtr
-
-global idt_write
-idt_write:
-	lidt [rel g_idtr]
-	ret
-
-global idt_load
-idt_load:
-	sidt [rel g_idtr]
-	ret
-
-global gdt_write
-gdt_write:
-	lgdt [rel g_gdtr]
-	mov ax, si ; second arg is data segment
-	mov ds, ax
-	mov es, ax
-	mov fs, ax
-	mov gs, ax
-	mov ss, ax
-	push qword rdi ; first arg is code segment
-	lea rax, [rel .next]
-	push rax
-	o64 retf
-.next:
-	ltr dx
-	ret
-
-global gdt_load
-gdt_load:
-	sgdt [rel g_gdtr]
-	ret
-
-%macro push_all_and_segments 0
-	push rax
-	push rcx
-	push rdx
-	push rbx
-	push rbp
-	push rsi
-	push rdi
-
-	push r8
-	push r9
-	push r10
-	push r11
-	push r12
-	push r13
-	push r14
-	push r15
-
-	mov ax, ds
-	push rax
-%endmacro
-
-%macro pop_all_and_segments 0
-	pop rax
-	mov ds, ax
-	mov es, ax
-	mov fs, ax
-	mov gs, ax
-
-	pop r15
-	pop r14
-	pop r13
-	pop r12
-	pop r11
-	pop r10
-	pop r9
-	pop r8
-
-	pop rdi
-	pop rsi
-	pop rbp
-	pop rbx
-	pop rdx
-	pop rcx
-	pop rax
-%endmacro
+%include "push_all.inc"
 
 extern isr_handler
 global isr_handler_prelude
@@ -142,70 +62,3 @@ irq_handler_prelude:
 
 section .isrs
 %include "interrupt_isrs.inc"
-
-extern syscall_handler
-syscall_handler_prelude:
-	push 0		; ss, doesn't matter here
-	push rsp
-	pushf
-	push 0		; cs, doesn't matter here
-	push rcx	; user rip
-	push 0		; bogus interrupt
-	push 0		; bogus errorcode
-	push_all_and_segments
-
-	mov rdi, rsp
-	call syscall_handler
-	mov rsp, rax
-
-	pop_all_and_segments
-	add rsp, 16	; ignore bogus interrupt / error
-	pop rcx		; user rip
-	add rsp, 32 ; ignore cs, flags, rsp, ss
-
-	o64 sysret
-
-global syscall_enable
-syscall_enable:
-	; IA32_EFER - set bit 0, syscall enable
-	mov rcx, 0xc0000080
-	rdmsr
-	or rax, 0x1
-	wrmsr
-
-	; IA32_STAR - cs for syscall
-	mov rcx, 0xc0000081
-	mov rax, 0			; not used
-	mov rdx, 0x00180008	; GDT:3 (user code), GDT:1 (kernel code)
-	wrmsr
-
-	; IA32_LSTAR - RIP for syscall
-	mov rcx, 0xc0000082
-	lea rax, [rel syscall_handler_prelude]
-	mov rdx, rax
-	shr rdx, 32
-	wrmsr
-
-	; IA32_FMASK - FLAGS mask inside syscall
-	mov rcx, 0xc0000084
-	mov rax, 0x200
-	mov rdx, 0
-	wrmsr
-
-	ret
-
-extern load_process
-global ramdisk_process_loader
-ramdisk_process_loader:
-
-	; create_process already pushed a cpu_state onto the stack for us, this
-	; acts both as the cpu_state parameter to load_process, and the saved
-	; state for the following iretq
-	mov rdi, rax
-	mov rsi, rbx
-	call load_process
-
-	pop_all_and_segments
-	add rsp, 16		; because the ISRs add err/num
-	iretq
-