Re: [PATCH 0/5] KVM: guest_memfd: bind backing memory to a NUMA node

[Gregory Price]

On Thu, Sep 10, 2026 at 01:30:04PM +0200, David Hildenbrand (Arm) wrote:
> On 9/2/26 21:46, Gregory Price wrote:
> > guest_memfd allocates its folios through a per-inode shared mempolicy.
> > 
> > Today that policy can only be set after the fact, with mbind() on a host
> > mmap of the fd. That requires the fd to be mappable, and it cannot reach
> > folios that are only ever guest-faulted. Neither holds for a
> > non-mappable (confidential) guest_memfd.
> 
> That looks like an investment into a mechanism we will soon consider legacy, so
> I am not convinced this is the right approach?
> 

Hm, I think i've missed recent work in this space / this context.
Any suggested reading here? Don't want to eat too much of your time.

~Gregory