Re: [PATCH v2] x86/kvm: Disable KVM_ASYNC_PF_SEND_ALWAYS

[Thomas Gleixner]

Thomas Gleixner <tglx@xxxxxxxxxxxxx> writes:
> Vivek Goyal <vgoyal@xxxxxxxxxx> writes:
>
> and the host completion injection which handles the queued completion
> when guest IF=0 does:

obviously IF=1 ...

>
>         struct ve_page *vp = vcpu->ve_page;
>
>         vp->host_current = idx;
>         inject_ve_complete(vcpu);
>
> The guest completion does:
>
>         struct ve_page *vp = this_cpu_ptr(&ve_page);
>         struct ve_info *info;
>
>         info = vp->info + vp->host_current;
>         rcuwait_wake_up(&info->wait);
>
> There are a bunch of life time issues to think about (not rocket
> science), but you get the idea.
>
> Thanks,
>
>         tglx