Re: [RFC PATCH v3 12/59] KVM: x86/mmu: Zap only leaf SPTEs for deleted/moved memslot by default

[Thomas Gleixner]

On Wed, Nov 24 2021 at 16:19, isaku yamahata wrote:
> From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
>
> Zap only leaf SPTEs when deleting/moving a memslot by default, and add a
> module param to allow reverting to the old behavior of zapping all SPTEs
> at all levels and memslots when any memslot is updated.

This changelog describes WHAT the change is doing, which can be seen in
the patch itself, but it gives zero justification neither for the change
nor for the existance of the module parameter.

Thanks,

        tglx