Marc-André Lureau <marcandre.lur...@gmail.com> writes: > Hi > > On Fri, Dec 4, 2015 at 3:55 PM, Tetsuya Mukawa <muk...@igel.co.jp> wrote: >>> What's the use case or test case? >> >> One of example is userspace device driver like DPDK PMD. >> Actually, I've found this fd related behavior using DPDK virtio-net PMD. >> Could you please check below to know my use case more? >> http://thread.gmane.org/gmane.comp.networking.dpdk.devel/28467/focus=28493 > > Thanks. Why not use memory-backend-file with share=on ? I think I > understand you want to use the same BAR address as the host shared > memory location to avoid extra offset computation. I don't know about > the limitations here. Is this extra offset really worth saving? > Finally, I wonder what qemu is really doing in the end ;)
Tetsuya, I still don't understand what you're trying to accomplish. I concur with Marc-André that -object memory-backend-FOO is how we allocate a memory object for something else to use. > Michael, could you comment about this vhost-user use case? (see above > linked thread)
