static_protections
chk_prot = static_protections(old_prot, lpaddr, old_pfn, numpages,
new_prot = static_protections(req_prot, lpaddr, old_pfn, numpages,
prot = static_protections(ref_prot, address, pfn, npg, 0, CPA_PROTECT);
new_prot = static_protections(new_prot, address, pfn, 1, 0,