kmem_back_domain
if (kmem_back_domain(domain, kernel_object, addr, bytes,
int kmem_back_domain(int, vm_object_t, vm_offset_t, vm_size_t, int);
rv = kmem_back_domain(domain, kernel_object, addr, asize, flags);
rv = kmem_back_domain(domain, object, addr, next - addr, flags);
error = kmem_back_domain(domain, kernel_object, addr, bytes, M_NOWAIT |