10 May
2021
10 May
'21
5:57 p.m.
+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.