Hi On Fri, Nov 29, 2019 at 11:03 AM Gerd Hoffmann <kra...@redhat.com> wrote: > > On Thu, Nov 28, 2019 at 06:15:16PM +0400, Marc-André Lureau wrote: > > Hi, > > > > Setting up shared memory for vhost-user is a bit complicated from > > command line, as it requires NUMA setup such as: m 4G -object > > memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on -numa > > node,memdev=mem. > > > > Instead, I suggest to add a -mem-shared option for non-numa setups, > > that will make the -mem-path or anonymouse memory shareable. > > Is it an option to just use memfd by default (if available)?
Yes, with a fallback path currently using a temporary file under /tmp (we may want to use shm_open() instead, or a different location such as XDG_RUNTIME_DIR? - and use O_TMPFILE)
