[PATCH 0/2] RFC: add -mem-shared option

[Marc-André Lureau]

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,

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(-)

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2.24.0