Re: [PATCH v2] KVM: Ignore MMU notifiers for guest_memfd-only memslots

[Sean Christopherson <seanjc@google.com>]

On Thu, Nov 05, 2026, Sean Christopherson wrote:
> On Wed, Nov 04, 2026, Lorenzo Stoakes (ARM) wrote:
> > [updated David's email address to @kernel.org]
> > 
> > On Wed, Aug 12, 2026 at 10:42:50AM +0100, Alexandru Elisei wrote:
> > [ ... ]
> > > On Fri, Jul 24, 2026 at 12:52:20PM -0700, Sean Christopherson wrote:
> > > > It'll probably take me a few weeks to circle back to this, as I finally crawled
> > > > out from underneath a pile of urgent and am just now getting back into review
> > > > mode, but this is fairly high on my todo list, so with luck we might still squeeze
> > > > this into 7.3.
> > 
> > Hey Sean,
> > 
> > I wondered whether you'd had a chance to look at this?
> > 
> > After discussing this with Marc and Alex it is clear that this is really a
> > blocker for Alex's SPE series, as we need a sensible means of ensuring
> > that stage-2 mappings stay in place.
> > 
> > So ideally would prefer to get something like this in in the next cycle,
> > if you don't have any objections to it? :)
> > 
> > If it'd be easier, I think a smaller version of the same patch would also
> > give us what we need? I.e. your snippet from June with the page ageing part
> > dropped, as below.
> 
> The GPC invalidation fix landed, so we can go straight to the super simple v1.
> Compile tested only at this point, I'll formally post this (hopefully today),
> assuming nothing explodes in testing.

/facepalm

I spaced on sending this (and I think on testing it too...).  I'll try to get it
posted in the next few days.