On (Wed) Aug 05 2009 [18:57:13], Jamie Lokier wrote: > Anthony Liguori wrote: > > Richard W.M. Jones wrote: > > Have you considered using a usb serial device? Something attractive > > about it is that a productid/vendorid can be specified which means that > > you can use that as a method of enumerating devices. > > > > Hot add/remove is supported automagically. > > The same applies to PCI: productid/vendorid (and subids); > PCI hotplug is possible though not as native as USB. > > Here's another idea: Many devices these days have a serial number or > id string. E.g. USB storage, ATA drives, media cards, etc. Linux > these days creates alias device nodes which include the id string in > the device name. E.g. /dev/disks/by-id/ata-FUJITSU_MHV2100BH_NWAQT662615H > > So in addition to (or instead of) /dev/vmch0, /dev/vmch1 etc., > Linux guests could easily generate: > > /dev/vmchannel/by-role/clipboard-0 > /dev/vmchannel/by-role/gueststats-0 > /dev/vmchannel/by-role/vmmanager-0 That's interesting; worth a thought. When we actually have all the parties together (libvirt, libguestfs, qemu) to decide which ports need to act as which transports, we'll be able to add this. > It's not necessary to do this at the beginning. All that is needed is > to provide enough id information that will appear in /sys/..., so that > that a udev policy for naming devices can be created at some later date. True. Amit -- 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
