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

Thomas Gleixner tglx@linutronix.de writes:

Vivek Goyal vgoyal@redhat.com 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