Hi,
This series implements a new xl config entry. Users can use the new
config entry to statically setup shared memory areas among VMs that
don't have grant table support so that they could communicate with each
other through the static shared memory areas.
It was originally developed by Zhongze, I am just updating the last few
issued that were address during the last round of reviews in January. I
tested the feature on ARM and works fine.
Cheers,
Stefano
Zhongze Liu (6):
xen: xsm: flask: introduce XENMAPSPACE_gmfn_share for memory sharing
libxl: introduce a new structure to represent static shared memory regions
libxl: support mapping static shared memory areas during domain creation
libxl: support unmapping static shared memory areas during domain
destruction
libxl:xl: add parsing code to parse "libxl_static_sshm" from xl config
files
docs: documentation about static shared memory regions
docs/man/xl-static-shm-configuration.pod.5 | 257 +++++++++++++++
docs/man/xl.cfg.pod.5.in | 8 +
docs/misc/xenstore-paths.markdown | 47 +++
tools/flask/policy/modules/xen.if | 2 +
tools/libxl/Makefile | 4 +-
tools/libxl/libxl.h | 6 +
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 | 512 +++++++++++++++++++++++++++++
tools/libxl/libxl_types.idl | 32 +-
tools/libxl/libxl_x86.c | 19 ++
tools/libxl/libxlu_sshm.c | 207 ++++++++++++
tools/libxl/libxlutil.h | 6 +
tools/xl/xl_parse.c | 25 +-
xen/arch/arm/mm.c | 7 +-
xen/include/public/memory.h | 8 +
xen/include/xsm/dummy.h | 15 +
xen/include/xsm/xsm.h | 6 +
xen/xsm/dummy.c | 1 +
xen/xsm/flask/hooks.c | 12 +
xen/xsm/flask/policy/access_vectors | 5 +
24 files changed, 1242 insertions(+), 6 deletions(-)
create mode 100644 docs/man/xl-static-shm-configuration.pod.5
create mode 100644 tools/libxl/libxl_sshm.c
create mode 100644 tools/libxl/libxlu_sshm.c
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