On 15/10/2019 20:38, speck for Paolo Bonzini wrote:
> On 14/10/19 14:50, speck for Andrew Cooper wrote:
>> Avoiding sharing the EPT and IOMMU tables does avoid the problem, but
>> that is to be expected as the shattering activity now has no interaction
>> with the IOMMU.
>>
>> Has anyone experimented with the above scenario, and if so, how has
>> testing gone?
> Nope, sorry.  KVM and VFIO do not share page tables.

Thanks.  That's helpful to know.  I'll try and follow up directly with
folk at Intel.

~Andrew