Re: [PATCH 4/5] KVM: x86/mmu: Don't install TDP MMU SPTE if SP has unexpected level

[David Matlack]

On Mon, Dec 12, 2022 at 7:30 PM Sean Christopherson <seanjc@xxxxxxxxxx> wrote:
>
> Don't install a leaf TDP MMU SPTE if the parent page's level doesn't
> match the target level of the fault, and instead have the vCPU retry the
> faulting instruction after warning.  Continuing on is completely
> unnecessary as the absolute worst case scenario of retrying is DoSing
> the vCPU, whereas continuing on all but guarantees bigger explosions, e.g.

Would it make sense to kill the VM instead via KVM_BUG()?