Re: [PATCH 1/2] KVM: TDX: Enable Notify VM exit

[Sean Christopherson <seanjc@google.com>]

On Fri, Aug 07, 2026, Rick P Edgecombe wrote:
> On Thu, 2026-08-06 at 06:50 -0700, Sean Christopherson wrote:
> > > It should be instruction timeout (as is in the SDM). Please reword the
> > > changelog to refer to the name of the features as they are in the SDM. I.e
> > > if you search for NOTIFY_VMEXIT or NOTIFY_WINDOW absolutely nothing can be
> > > found in the SDM.  The changelog should ideally mention both - SDM's
> > > nomenclature and linux's nomenclature.
> > 
> > No, let's change Linux's nomenclature before merging this, "Notify" was always
> > vague and confusing.  It's unfortunate that we let that bleed into uAPI
> > headers, but we can simply #define aliases (or just force userspace to update
> > as well, if they use kernel headers directly).
> 
> Hmm, ok. We were trying to go with a minimal backport friendly fix.
> 
> Xiaoyao, if we are going to carve it up, I guess we might as well do the
> consolidation of the exit handlers too on this version. (a cleanup patch that
> got left off of this).

Oh, I missed that this was tagged for stable@.  Do the mass rename on top.  To
address Nikolay's concerns, I think a brief blurb at the end calling out that
KVM currently uses old terminology would suffice.  E.g.

  Note, KVM uses "pre-production" terminology for the feature formally called
  Notify VM-Exit.  All public versions of the SDM refer to the feature as
  Instruction Timeout.  This will be remedied in the near future, for now,
  use KVM's terminology for consistency.