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

[Paolo Bonzini]

On 28/06/2017 16:09, Wanpeng Li wrote:
>> Yes, this was my question essentially.  I would still migrate
>> nested_apf_token (as part of nested virt state), and then clear it in
>> KVM when doing the async-pf broadcast.
> Do you mean I should save nested_apf_token by GET_VCPU_EVENTS and
> restore it by SET_VCPU_EVENTS? I utilize the place of "u8 pad" in
> kvm_vcpu_events to hold nested_apf, however nested_apf_token is
> unsigned long.

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.

Paolo