[Qemu-devel] [PATCH v4 0/3] Add memfd memory backend

[Marc-André Lureau]

Add a new Linux-specific memory backend, similar to hostmem-file,
except that it doesn't need file path. It also try to enforce memory
sealing if available. It is thus slightly easier and secure, and is
compatible with transparent huge-pages since Linux 4.8.

v4:
- rebased, now that preliminary patches are merged

v3:
- make vhost-user-test use memfd only if possible
- rebased

v1->v2:
- make it linux-specific
- minor changes and commit message tweaks

Marc-André Lureau (3):
  memfd: split qemu_memfd_alloc()
  Add memfd based hostmem
  tests: use memfd in vhost-user-test

 include/qemu/memfd.h     |  2 ++
 backends/hostmem-memfd.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/vhost-user-test.c  | 68 +++++++++++++++++++++++++++++++-----------------
 util/memfd.c             | 42 ++++++++++++++++++------------
 backends/Makefile.objs   |  2 ++
 qemu-options.hx          | 11 ++++++++
 6 files changed, 151 insertions(+), 41 deletions(-)
 create mode 100644 backends/hostmem-memfd.c

-- 
2.13.1.395.gf7b71de06