On Thu, 21 Apr 2011, ZhouPeng wrote: > Thank you for your review. > > Does this means the xen-upsteam-qemu will give up xenstore? > > Many features of xen except for vncpasswd > may need that xl send||receive msg to||from xen-qemu. > I think some other part of xen may need to read xenstore which may be > updated by qemu. > xenstore's sharing characteristic give much convenience for many-way > msg communication, > but the RPC may only give single-way. > > So I am somewhat in doubt xen-upstream-qemu will give up xenstore. > > IMO, I don't think qemu may accept xenstore's code only used by xen, > > except > qemu need to add a new general shared many-way msg exchange mechanism, > like xenstore database. >
Even though a "QMP bus" could be useful, I don't think there is anything like that at the moment. Also considering that each qemu instance takes care of a single guest, the usefulness of such a mechanism is reduced. Anyhow in this particular case using QMP seems appropriate: I would welcome patches to add QMP support to libxenlight, even though I realize that it is a bigger effort than this single patch.
