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.