On 12/02/2011 12:11 PM, Bhushan Bharat-R65777 wrote: > How do we determine whether guest is ready or not? There can be multiple device get ready at different time. The guest makes a hypercall with a device handle -- at least that's how we do it in Topaz. > Further if guest have given the device to it user level process or its guest. Should not there be some mechanism for a guest to enable/disable on per device or group? Yes, the same mechanism can be used for that -- though in that case we'll also want the ability for the guest to be able to control another layer of mapping (which will get quite tricky with PAMU's limitations). This isn't really VFIO's concern, though (unless you're talking about the VFIO implementation in the guest). -Scott -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html