kvm_get_memory_attributes
attrs != kvm_get_memory_attributes(kvm, gfn))
unsigned long attrs = kvm_get_memory_attributes(kvm, gfn);
return kvm_get_memory_attributes(kvm, gfn) & KVM_MEMORY_ATTRIBUTE_PRIVATE;
return (kvm_get_memory_attributes(kvm, start) & mask) == attrs;