On Mon, Feb 22, 2016 at 03:26:56PM +0100, Gerd Hoffmann wrote: > On Mo, 2016-02-22 at 14:41 +0200, Michael S. Tsirkin wrote: > > Useful to send guest data back to QEMU. > > Use case? > > cheers, > Gerd
VM GEN ID at least wants to pass address of some blob in guest memory to host. Apparently, that's also useful for nvdimm. A reasonable way to do that seems to be to write it into fw cfg file, this way it's also migrated automatically. -- MST
