[Xen-devel] [PATCH 0/6] Allow setting up shared memory areas between VMs from xl config files

[Zhongze Liu <blackskygg@xxxxxxxxx>]

This series implements the new xl config entry proposed in [1]. Users can use
the new config entry to statically setup shared memory areas among VMs so that
they could communicate with each other through the static shared memory areas.

[1] Proposla to allow setting up shared memory areas between VMs from xl config 
file:
    https://lists.xenproject.org/archives/html/xen-devel/2017-07/msg03047.html

Cheers,

Zhongze Liu (6):
  libxc: add xc_domain_remove_from_physmap to wrap
    XENMEM_remove_from_physmap
  libxl: introduce a new structure to represent static shared memory
    regions
  libxl:xl: add parsing code to parse "libxl_static_sshm" from xl config
    files
  xsm: flask: change the interface and default policy for
    xsm_map_gmfn_foregin
  libxl: support mapping static shared memory areas during domain
    creation
  libxl: support unmapping static shared memory areas during domain
    destruction

 tools/libxc/include/xenctrl.h |   4 +
 tools/libxc/xc_domain.c       |  11 +
 tools/libxl/Makefile          |   4 +-
 tools/libxl/libxl.h           |   4 +
 tools/libxl/libxl_arch.h      |   6 +
 tools/libxl/libxl_arm.c       |  15 ++
 tools/libxl/libxl_create.c    |  27 +++
 tools/libxl/libxl_domain.c    |   5 +
 tools/libxl/libxl_internal.h  |  16 ++
 tools/libxl/libxl_sshm.c      | 461 ++++++++++++++++++++++++++++++++++++++++++
 tools/libxl/libxl_types.idl   |  36 +++-
 tools/libxl/libxl_x86.c       |  18 ++
 tools/libxl/libxl_xshelp.c    |   8 +
 tools/libxl/libxlu_sshm.c     | 210 +++++++++++++++++++
 tools/libxl/libxlutil.h       |   6 +
 tools/xl/xl_parse.c           |  24 ++-
 xen/arch/arm/mm.c             |   2 +-
 xen/arch/x86/mm/p2m.c         |   2 +-
 xen/include/xsm/dummy.h       |   6 +-
 xen/include/xsm/xsm.h         |   7 +-
 xen/xsm/flask/hooks.c         |   6 +-
 21 files changed, 862 insertions(+), 16 deletions(-)
 create mode 100644 tools/libxl/libxl_sshm.c
 create mode 100644 tools/libxl/libxlu_sshm.c

-- 
2.14.0


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