Re: [PATCH v7 6/6] hostmem: Handle remapping of RAM

[David Hildenbrand <david@xxxxxxxxxx>]

>       /*
> @@ -595,6 +628,7 @@ static const TypeInfo host_memory_backend_info = {
>       .instance_size = sizeof(HostMemoryBackend),
>       .instance_init = host_memory_backend_init,
>       .instance_post_init = host_memory_backend_post_init,
> +    .instance_finalize = host_memory_backend_finalize,
>       .interfaces = (InterfaceInfo[]) {
>           { TYPE_USER_CREATABLE },
>           { }
> diff --git a/include/system/hostmem.h b/include/system/hostmem.h
> index 5c21ca55c0..170849e8a4 100644
> --- a/include/system/hostmem.h
> +++ b/include/system/hostmem.h
> @@ -83,6 +83,7 @@ struct HostMemoryBackend {
>       HostMemPolicy policy;
>   
>       MemoryRegion mr;
> +    RAMBlockNotifier ram_notifier;
>   };

Thinking about Peters comment, it would be a nice improvement to have a 
single global memory-backend notifier that looks up the fitting memory 
backend, instead of having one per memory backend.

A per-ramblock notifier might also be possible, but that's a bit 
harder/ackward to configure: e.g., the resize callback is passed to 
memory_region_init_resizeable_ram() right now.

--
Cheers,

David / dhildenb