Re: [RFC PATCH v1 06/37] KVM: guest_memfd: Update kvm_gmem_populate() to use gmem attributes

[Yan Zhao]

>  #ifdef CONFIG_HAVE_KVM_ARCH_GMEM_POPULATE
> +static bool kvm_gmem_range_is_private(struct gmem_inode *gi, pgoff_t index,
> +                                   size_t nr_pages, struct kvm *kvm, gfn_t 
> gfn)
> +{
> +     pgoff_t end = index + nr_pages - 1;
> +     void *entry;
> +
> +     if (vm_memory_attributes)
> +             return kvm_range_has_vm_memory_attributes(kvm, gfn, gfn + 
> nr_pages,
> +                                                    
> KVM_MEMORY_ATTRIBUTE_PRIVATE,
> +                                                    
> KVM_MEMORY_ATTRIBUTE_PRIVATE);
Can't compile kvm_range_has_vm_memory_attributes() if
CONFIG_KVM_VM_MEMORY_ATTRIBUTES is not set.