223     struct mm_struct *new_mms = (struct mm_struct *)kmalloc(sizeof(struct mm_struct), 0);  in process_copy_mm()  local
224     memset(new_mms, 0, sizeof(struct mm_struct));  in process_copy_mm()
226     memcpy(new_mms, current_pcb->mm, sizeof(struct mm_struct));  in process_copy_mm()
227     new_mms->vmas = NULL;  in process_copy_mm()
228     pcb->mm = new_mms;  in process_copy_mm()
231     new_mms->pgd = (pml4t_t *)virt_2_phys(kmalloc(PAGE_4K_SIZE, 0));  in process_copy_mm()
233     memset(phys_2_virt(new_mms->pgd), 0, PAGE_4K_SIZE / 2);  in process_copy_mm()
236 …memcpy(phys_2_virt(new_mms->pgd) + 256, phys_2_virt(initial_proc[proc_current_cpu_id]->mm->pgd) + …  in process_copy_mm()
241     uint64_t *new_pml4t = (uint64_t *)phys_2_virt(new_mms->pgd);  in process_copy_mm()
263 …    int ret = mm_create_vma(new_mms, vma->vm_start + i * PAGE_2M_SIZE, PAGE_2M_SIZE, vma->vm_flags,  in process_copy_mm()
282 …   int ret = mm_create_vma(new_mms, vma->vm_start, map_size, vma->vm_flags, vma->vm_ops, &new_vma);  in process_copy_mm()