Re: [FYI PATCH] Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()"

From: Paolo Bonzini
Date: Fri Mar 25 2022 - 07:21:43 EST


On 3/25/22 00:57, Sean Christopherson wrote:
Can I have 1-2 weeks to try and root cause and fix the underlying issue before
sending reverts to Linus? I really don't want to paper over a TLB flushing bug
or an off-by-one bug, and I really, really don't want to end up with another
scenario where KVM zaps everything just because.

Well, too late... I didn't want to send a pull request that was broken, and Mingwei provided a convincing reason for the breakage.

Paolo