Re: [RFC PATCH 26/39] KVM: guest_memfd: Track faultability within a struct kvm_gmem_private
From: Jason Gunthorpe
Date: Wed Oct 16 2024 - 07:57:54 EST
On Wed, Oct 16, 2024 at 01:54:32PM +0200, David Hildenbrand wrote:
> Likely should be doable. All we need is the generalized concept of a folio
> with HVO, and a way to move these folios between owners (e.g.,
> global<->hugetlb, global<->guest_memfd).
+1
HVO seems to become a sticking point in these discussions, having a
way to make any big folio HVO optimized (and undo it) then put hugetlb
on top of that would be a nice refactoring.
Jason