On Mon, Jun 08, 2020 at 09:56:57AM +0100, Marc Zyngier wrote: > For very long, we have kept this pointer back to the per-cpu > host state, despite having working per-cpu accessors at EL2 > for some time now. > > Recent investigations have shown that this pointer is easy > to abuse in preemptible context, which is a sure sign that > it would better be gone. Not to mention that a per-cpu > pointer is faster to access at all times. Helps to make the references to `kvm_host_data` clearer with there now being just one way to get to it and shows that it is scoped to the current CPU. A good change IMO!
