On 06/16/2009 09:32 PM, Jamie Lokier wrote: > Avi Kivity wrote: > >> Another issue is enumeration. Guests will present their devices in the >> order they find them on the pci bus (of course enumeration is guest >> specific). So if I have 2 virtio controllers the only way I can >> distinguish between them is using their pci slots. >> > > virtio controllers really should have a user-suppliable string or UUID > to identify them to the guest. Don't they? > virtio controllers don't exist. When they do, they may have a UUID or not, but in either case guest infrastructure is in place for reporting the PCI slot, not the UUID. virtio disks do have a UUID. I don't think older versions of Windows will use it though, so if you reorder your slots you'll see your drive letters change. Same with Linux if you don't use udev by-uuid rules. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
