Re: [PATCH 17/15] KVM: X86: Ensure pae_root to be reconstructed for shadow paging if the guest PDPTEs is changed

Paolo Bonzini
2021-12-11T08:22:20Z

On 12/11/21 07:56, Maxim Levitsky wrote:
>> This apparently wasn't validated against a simple use case, let
>> alone against things like migration with nested VMs, multliple L2s,
>> etc...
>
> I did validate the *SREGS2* against all the cases I could (like
> migration, EPT/NPT disabled/etc. I even started testing SMM to see
> how it affects PDPTRs, and patched seabios to use PAE paging. I still
> could have missed something.

Don't worry, I think Sean was talking about patch 16 and specifically
digging at me (who deserved it completely).

Paolo