[PATCH v9 0/7] Allow setting up shared memory areas between VMs from xl config files

From: Stefano Stabellini <sstabellini@kernel.org>
To: xen-devel@lists.xen.org
Cc: ian.jackson@eu.citrix.com, julien.grall@arm.com,
	sstabellini@kernel.org, wei.liu2@citrix.com,
	blackskygg@gmail.com
Subject: [PATCH v9 0/7] Allow setting up shared memory areas between VMs from xl config files
Date: Wed, 5 Dec 2018 14:15:46 -0800 (PST)	[thread overview]
Message-ID: <alpine.DEB.2.10.1812051413450.527@sstabellini-ThinkPad-X260> (raw)

Hi all,

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.

Cheers,

Stefano

The following changes since commit 85b00385827e4e061b2ff38b549c03d0f1e66b6a:

  xen/sched: Drop set_current_state() (2018-10-08 18:34:55 +0100)

are available in the git repository at:

  http://xenbits.xenproject.org/git-http/people/sstabellini/xen-unstable.git share_mem-v9

for you to fetch changes up to a900b724d91a1147170f14f340cc231e519eea79:

  xen/arm: export shared memory regions as reserved-memory on device tree (2018-12-05 13:25:02 -0800)

----------------------------------------------------------------
Stefano Stabellini (1):
      xen/arm: export shared memory regions as reserved-memory on device tree

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 | 266 +++++++++++++++
 docs/man/xl.cfg.pod.5.in                   |   8 +
 docs/misc/xenstore-paths.markdown          |  47 +++
 tools/flask/policy/modules/xen.if          |   2 +
 tools/libxl/Makefile                       |   5 +-
 tools/libxl/libxl.h                        |   8 +
 tools/libxl/libxl_arch.h                   |   8 +-
 tools/libxl/libxl_arm.c                    |  81 ++++-
 tools/libxl/libxl_create.c                 |  27 ++
 tools/libxl/libxl_dom.c                    |   2 +-
 tools/libxl/libxl_domain.c                 |   8 +
 tools/libxl/libxl_internal.h               |  16 +
 tools/libxl/libxl_sshm.c                   | 530 +++++++++++++++++++++++++++++
 tools/libxl/libxl_types.idl                |  28 ++
 tools/libxl/libxl_x86.c                    |  21 +-
 tools/libxl/libxlu_sshm.c                  | 206 +++++++++++
 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                    |  14 +
 xen/include/xsm/xsm.h                      |   6 +
 xen/xsm/dummy.c                            |   1 +
 xen/xsm/flask/hooks.c                      |   7 +
 xen/xsm/flask/policy/access_vectors        |   5 +
 25 files changed, 1332 insertions(+), 10 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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