Re: [PATCH RFC 1/4] mm: Introduce guest_memfd

[David Hildenbrand]

On 05.08.24 20:34, Elliot Berman wrote:
> In preparation for adding more features to KVM's guest_memfd, refactor
> and introduce a library which abstracts some of the core-mm decisions
> about managing folios associated with the file. The goal of the refactor
> serves two purposes:
>
> Provide an easier way to reason about memory in guest_memfd. With KVM
> supporting multiple confidentiality models (TDX, SEV-SNP, pKVM, ARM
> CCA), and coming support for allowing kernel and userspace to access
> this memory, it seems necessary to create a stronger abstraction between
> core-mm concerns and hypervisor concerns.
>
> Provide a common implementation for other hypervisors (Gunyah) to use.
>
> Signed-off-by: Elliot Berman <quic_eberman@xxxxxxxxxxx>

Instead of "Introduce guest_memfd" and "Convert to use mm/guest_memfd", 
I suggest a single patch that factors out guest_memfd into core-mm.

Or is there any particular reason for the split?

--
Cheers,

David / dhildenb