[Xen-devel] [PATCH v6 00/14] enable Cache Allocation Technology (CAT) for VMs

[Chao Peng <chao.p.peng@xxxxxxxxxxxxxxx>]

Changes in v6:
Address comments from Andrew/Dario/Ian, mainly:
* Introduce cat_socket_init(_enable)_bitmap.
* Merge xl psr-cmt/cat-hwinfo => xl psr-hwinfo.
* Add function header to explain the 'target' parameter.
* Use bitmap instead of TARGETS_ALL.
* Document fix.
Changes in v5:
* Address comments from Andrew and Ian(Detail in patch).
* Add socket_to_cpumask.
* Add xl psr-cmt/cat-hwinfo.
* Add some libxl CMT enhancement.
Changes in v4:
* Address comments from Andrew and Ian(Detail in patch).
* Split COS/CBM management patch into 4 small patches.
* Add documentation xl-psr.markdown.
Changes in v3:
* Address comments from Jan and Ian(Detail in patch).
* Add xl sample output in cover letter.
Changes in v2:
* Address comments from Konrad and Jan(Detail in patch):
* Make all cat unrelated changes into the preparation patches. 

This patch serial enable the new Cache Allocation Technology (CAT) feature
found in Intel Broadwell and later server platform. In Xen's implementation,
CAT is used to control cache allocation on VM basis.

Detail hardware spec can be found in section 17.15 of the Intel SDM [1].
The design for XEN can be found at [2].

patch1-2:   preparation.
patch3-9:   real work for CAT.
patch10-11: enhancement for CMT.
patch12:    libxl prepareation
patch13:    tools side work for CAT.
patch14:    xl document for CMT/MBM/CAT.

[1] Intel SDM 
(http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-manual-325462.pdf)
[2] CAT design for XEN( 
http://lists.xen.org/archives/html/xen-devel/2014-12/msg01382.html)

Chao Peng (14):
  x86: add socket_to_cpumask
  x86: improve psr scheduling code
  x86: detect and initialize Intel CAT feature
  x86: maintain COS to CBM mapping for each socket
  x86: add COS information for each domain
  x86: expose CBM length and COS number information
  x86: dynamically get/set CBM for a domain
  x86: add scheduling support for Intel CAT
  xsm: add CAT related xsm policies
  tools/libxl: minor name changes for CMT commands
  tools/libxl: add command to show PSR hardware info
  tools/libxl: introduce some socket helpers
  tools: add tools support for Intel CAT
  docs: add xl-psr.markdown

 docs/man/xl.pod.1                            |  67 +++++
 docs/misc/xen-command-line.markdown          |  15 +-
 docs/misc/xl-psr.markdown                    | 133 +++++++++
 tools/flask/policy/policy/modules/xen/xen.if |   2 +-
 tools/flask/policy/policy/modules/xen/xen.te |   4 +-
 tools/libxc/include/xenctrl.h                |  15 +
 tools/libxc/xc_psr.c                         |  76 +++++
 tools/libxl/libxl.h                          |  35 +++
 tools/libxl/libxl_internal.h                 |   2 +
 tools/libxl/libxl_psr.c                      | 143 +++++++++-
 tools/libxl/libxl_types.idl                  |  10 +
 tools/libxl/libxl_utils.c                    |  46 ++++
 tools/libxl/libxl_utils.h                    |   2 +
 tools/libxl/xl.h                             |   5 +
 tools/libxl/xl_cmdimpl.c                     | 262 +++++++++++++++++-
 tools/libxl/xl_cmdtable.c                    |  21 ++
 xen/arch/x86/domain.c                        |  13 +-
 xen/arch/x86/domctl.c                        |  20 ++
 xen/arch/x86/psr.c                           | 398 +++++++++++++++++++++++++--
 xen/arch/x86/smpboot.c                       |  15 +
 xen/arch/x86/sysctl.c                        |  18 ++
 xen/include/asm-x86/cpufeature.h             |   1 +
 xen/include/asm-x86/domain.h                 |   5 +-
 xen/include/asm-x86/msr-index.h              |   1 +
 xen/include/asm-x86/psr.h                    |  13 +-
 xen/include/asm-x86/smp.h                    |   8 +
 xen/include/public/domctl.h                  |  12 +
 xen/include/public/sysctl.h                  |  16 ++
 xen/xsm/flask/hooks.c                        |   6 +
 xen/xsm/flask/policy/access_vectors          |   4 +
 30 files changed, 1327 insertions(+), 41 deletions(-)
 create mode 100644 docs/misc/xl-psr.markdown

-- 
1.9.1


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