* Marc-André Lureau (marcandre.lur...@redhat.com) 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. > > Comments welcome,
It's worth checking with Igor (cc'd) - he said he was going to work on something similar. One other thing this fixes is that it lets you potentially do vhost-user on s390, since it currently has no NUMA. Dave > Marc-André Lureau (2): > memfd: add qemu_memfd_open() > Add -mem-shared option > > exec.c | 11 ++++++++++- > hw/core/numa.c | 16 +++++++++++++++- > include/qemu/memfd.h | 3 +++ > include/sysemu/sysemu.h | 1 + > qemu-options.hx | 10 ++++++++++ > util/memfd.c | 39 +++++++++++++++++++++++++-------------- > vl.c | 4 ++++ > 7 files changed, 68 insertions(+), 16 deletions(-) > > -- > 2.24.0 > > -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
