put memory map detection into paging.c (grub_memory_map function)

src/kernel/kernel.c

@@ -153,34 +153,7 @@ void kmain(unsigned int magic, unsigned int info)
                 printf("bootloader: %s\n", mbi.boot_loader_name);
 	}
 
-	/* Check bit 6 to see if we have a valid memory map */
-    if(!(mbi.flags >> 6 & 0x1)) {
-        printf("invalid memory map given by GRUB bootloader\n");
-		while(1){}
-    }
-
-	/* Loop through the memory map and display the values */
-    int i;
-    for(i = 0; i < mbi.mmap_length; 
-        i += sizeof(multiboot_memory_map_t)) 
-    {
-        multiboot_memory_map_t* mmmt = 
-            (multiboot_memory_map_t*) (mbi.mmap_addr + i);
-
-        printf("Start Addr: %x | Length: %x | Size: %x | Type: %x\n",
-            mmmt->addr, mmmt->len, mmmt->size, mmmt->type);
-
-        if(mmmt->type == MULTIBOOT_MEMORY_AVAILABLE) {
-            /* 
-             * Do something with this memory block!
-             * BE WARNED that some of memory shown as availiable is actually 
-             * actively being used by the kernel! You'll need to take that
-             * into account before writing to memory!
-             */
-			printf("available\n");
-        }
-    }
-
+	grub_memory_map(magic, &mbi);
 
 	isr_install();
 	pic_remap(0x20, 0x28);