Add a WIP VMM

As of now the VMM (pretty much a doubly linked list of regions) supports allocating and demand paging. still no deallocation though so if you allocate something you can't free it yet :')

src/arch/x86_64/isr.c

@@ -1,5 +1,6 @@
 #include <arch/isr.h>
 #include <arch/panic.h>
+#include <kernel/vmm.h>
 
 void isr_general(arch_regsnoerror *reg){
 	_panic("Unhandled interrupt", 0);
@@ -11,6 +12,9 @@ void isr_except(arch_regserror *reg){
 	asm("hlt;");
 }
 
-void isr_pagefault(void*){
+void isr_pagefault(arch_regserror *reg){
+	
+	if(!vmm_dealwithrequest(reg->cr2))
+		_panic("Page fault!\n", 0);
 	
 }