> > /* XEN_DOMCTL_mem_sharing_op. > > - * The CONTROL sub-domctl is used for bringup/teardown. */ > > + * The CONTROL sub-domctl is used for bringup/teardown. > > + * Please note that mem sharing can be turned on *without* setting-up the > > + * correspondin ring > > + */ > > As a tangent, it can? how? (I'm entirely prepared to believe that this > is how the code currently works, but I can't see how such a setup would > plausibly work.)
The vm_event ring for mem_sharing is only used to communicate out-of-memory condition to an external listener. I think it's only useful for logging since the listener wouldn't really be in a position to try to "make space" for the faulting domain and it would get destroyed after the message is sent. In any case, there isn't any documentation for how it was intended to be used so this is just my guess. Tamas _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
