On 10/29/2014 02:57 PM, David Vrabel wrote: > Microsoft already has a specification to obtain a random number via an > ACPI device. The VM Generation ID. > > http://www.microsoft.com/en-us/download/details.aspx?id=30707 That's a very different thing. The VM Generation ID always returns the same number if you run the VM from the same configuration file. It tells the VM when it might need a reseed, but provides neither a best effort random number like this spec does, nor an entropy source like virtio-rng does. Paolo -- 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