feature: both physical and virtual allocators should be done

src/shell/commands/heap_cmd.c

@@ -1,7 +1,16 @@
 #include "alloc.h"
+#include "kprintf.h"
+#include "string.h"
 
 void heap_cmd(char *arg)
 {
-	(void)arg;
-	show_alloc_mem();
-}
+	if (!arg)
+		kprintf(KERN_INFO "You must specify an argument (phys/virt)\n");
+	else if (!strcmp(arg, "phys"))
+		show_kalloc_mem();
+	else if (!strcmp(arg, "virt"))
+		show_valloc_mem();
+	else
+		kprintf(KERN_INFO "%s: invalid argument to heap (phys/virt)\n",
+		        arg);
+}