kvm_mmu_page_get_access
WARN_ONCE(access != kvm_mmu_page_get_access(sp, index),
sp->gfn, kvm_mmu_page_get_access(sp, index), access);
access = kvm_mmu_page_get_access(huge_sp, spte_index(huge_sptep));
if (kvm_mmu_page_get_access(sp, i) == pte_access)