Re: [PATCH v6 3/4] KVM: async_pf: Force a nested vmexit if the injected #PF is async_pf

[Wanpeng Li]

2017-06-28 22:20 GMT+08:00 Paolo Bonzini <pbonzini@xxxxxxxxxx>:
>
>
> On 28/06/2017 16:17, Wanpeng Li wrote:
>>> If for now we can leave out the GET/SET_VCPU_EVENTS changes, that would
>>> be best.  nested_apf and nested_apf_token should be migrated together
>>> with the rest of the nested virt state.
>> Radim explains why we at least needs nested_apf here:
>>
>>> nested_apf is not #PF: if we didn't pass nested_apf, then the exception would be injected as #PF to L2 after migration.
>
> Yes, but migration of a L1 hypervisor is broken anyway.
>
>> Do you mean we can ignore it here and depends on Jim's patches to
>> completely handle it?
>
> Ignore it here, remember it when someone picks up Jim's patches, and
> also serialize nested_apf_token.

Ok, I will remove GET/SET_VCPU_EVENTS stuff in the next version.

Regards,
Wanpeng Li