Re: [PULL] topic/iomem-mmap-vs-gup

[Paolo Bonzini]

On 10/05/21 19:57, Sean Christopherson wrote:
> +Paolo
>
> On Mon, May 10, 2021, Jason Gunthorpe wrote:
> > On Mon, May 10, 2021 at 04:55:39PM +0200, Daniel Vetter wrote:
> >
> > > yeah vfio is still broken for the case I care about. I think there's
> > > also some questions open still about whether kvm really uses
> > > mmu_notifier in all cases correctly,
> >
> > IIRC kvm doesn't either.
>
> Yep, KVM on x86 has a non-trivial number of flows that don't properly hook into
> the mmu_notifier.  Paolo is working on fixing the problem, but I believe the
> rework won't be ready until 5.14.

Yeah, I like the way it's coming, but I'm at 20-ish patches and counting.

Paolo