GMAP_FLAG_ALLOW_HPAGE_1M
if (test_bit(GMAP_FLAG_ALLOW_HPAGE_1M, &parent->flags))
set_bit(GMAP_FLAG_ALLOW_HPAGE_1M, &child->flags);
clear_bit(GMAP_FLAG_ALLOW_HPAGE_1M, &child->flags);
return test_bit(GMAP_FLAG_ALLOW_HPAGE_1M, &gmap->flags);
set_bit(GMAP_FLAG_ALLOW_HPAGE_1M, &kvm->arch.gmap->flags);
clear_bit(GMAP_FLAG_ALLOW_HPAGE_1M, &kvm->arch.gmap->flags);