CR3_ADDR_MASK
flush->address_space &= CR3_ADDR_MASK;
flush->address_space &= CR3_ADDR_MASK;
return __read_cr3() & CR3_ADDR_MASK;
return __native_read_cr3() & CR3_ADDR_MASK;
WARN_ON((cr3 & CR3_ADDR_MASK) != __pa(mm->pgd));