[Qemu-devel] Re: [PATCH 8/8] kvm: Rework VCPU reset

[Avi Kivity]

Jan Kiszka wrote:
> Avi Kivity wrote:
>   
> > Jan Kiszka wrote:
> >     
> > > Use standard callback with highest order to synchronize VCPU on reset
> > > after all device callbacks were execute. This allows to remove the
> > > special kvm hook in qemu_system_reset.
> > >   
> > >       
> > Is this needed for the lapic reset callback?
> >
> > If so, we can express the dependency explicitly rather than with a
> > priority, by having cpu reset notifiers invoked when the cpu is reset. 
> > In the case of the lapic, I don't think we need an abstract mechanism;
> > the lapic is part of the cpu, not some random device.
> >
> > Maybe we should even save/load it as part of the cpu.
> >
> >     
>
> QEMU is not only providing the LAPIC, but also covering the old
> dedicated version. That makes at least HW instantiating a bit more complex.
>
>   

What do you mean by 'old dedicated version'?

--
Do not meddle in the internals of kernels, for they are subtle and quick to 
panic.