+ else {
+ // Child entries
+ for( pd = 0; pd < 512; pd ++ )
+ {
+ // Unallocated PDir entry
+ if( !(PAGEDIR(addr >> PDIR_SHIFT) & 1) ) {
+ addr += 1ULL << PDIR_SHIFT;
+ continue;
+ }
+
+ // COW Page Table
+ if( PAGEDIR(addr >> PDIR_SHIFT) & PF_COW ) {
+ addr += 1ULL << PDIR_SHIFT;
+ }
+ else
+ {
+ // TODO: Catch large pages
+
+ // Child entries
+ for( pt = 0; pt < 512; pt ++ )
+ {
+ // Free page
+ if( PAGETABLE(addr >> PTAB_SHIFT) & 1 ) {
+ MM_DerefPhys( PAGETABLE(addr >> PTAB_SHIFT) & PADDR_MASK );
+ PAGETABLE(addr >> PTAB_SHIFT) = 0;
+ }
+ addr += 1ULL << 12;
+ }
+ }
+ // Free page table
+ MM_DerefPhys( PAGEDIR(addr >> PDIR_SHIFT) & PADDR_MASK );
+ PAGEDIR(addr >> PDIR_SHIFT) = 0;
+ }
+ }
+ // Free page directory
+ MM_DerefPhys( PAGEDIRPTR(addr >> PDP_SHIFT) & PADDR_MASK );
+ PAGEDIRPTR(addr >> PDP_SHIFT) = 0;