[Xen-devel] [PATCH v3 00/15] Enable L2 Cache Allocation Technology

[Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx>]

Hi all,

We plan to bring a new PSR (Platform Shared Resource) feature called
Intel L2 Cache Allocation Technology (L2 CAT) to Xen.

Besides the L2 CAT implementaion, we refactor the psr.c to make it more
flexible to add new features and fulfill the principle, open for extension
but closed for modification. We abstract the general operations of all
features and encapsulate them into a structure. Then, the development
of new feature is simple to mainly implement these callback functions.

The patch set can be found at:
https://github.com/yisun-git/xen_l2_cat.git xen_l2_v3_3

---
Changes since v2:
 * Add design document into docs/.
 * Split "refactor psr" patch to several small patches. 
 * Function and variables names are changed to express accurately.
 * Revert some unnecessary changes.
 * Fix issues according to comments provided by reviewers.

Yi Sun (15):
  docs: L2 Cache Allocation Technology (CAT) feature document.
  x86: refactor psr: Split 'ref' out.
  x86: refactor psr: Remove 'struct psr_cat_cbm'.
  x86: refactor psr: Encapsulate 'cbm_len' and 'cbm_max'
  x86: refactor psr: Use 'feat_mask' to record featues enabled.
  x86: refactor psr: Create feature list.
  x86: refactor psr: Implement feature operations structure.
  x86: refactor psr: Implement get hw info callback function
  x86: refactor psr: Implement get value callback function.
  x86: refactor psr: Implement function to get the max cos_max.
  x86: refactor psr: Implement set value callback function.
  x86: Implement L2 CAT in psr.c.
  x86: Add L2 CAT interfaces in domctl.
  x86: Add L2 CAT interfaces in sysctl.
  tools & docs: add L2 CAT support in tools and docs.

 docs/features/l2_cat.pandoc     |  314 ++++++++++
 docs/man/xl.pod.1.in            |   25 +-
 docs/misc/xl-psr.markdown       |   10 +-
 tools/libxc/include/xenctrl.h   |    7 +-
 tools/libxc/xc_psr.c            |   46 +-
 tools/libxl/libxl.h             |   11 +-
 tools/libxl/libxl_psr.c         |   10 +-
 tools/libxl/libxl_types.idl     |    1 +
 tools/libxl/xl_cmdimpl.c        |  220 +++++--
 tools/libxl/xl_cmdtable.c       |    4 +-
 xen/arch/x86/domctl.c           |   49 +-
 xen/arch/x86/psr.c              | 1312 ++++++++++++++++++++++++++++++++-------
 xen/arch/x86/sysctl.c           |   28 +-
 xen/include/asm-x86/msr-index.h |    1 +
 xen/include/asm-x86/psr.h       |   14 +-
 xen/include/public/domctl.h     |    2 +
 xen/include/public/sysctl.h     |    6 +
 17 files changed, 1735 insertions(+), 325 deletions(-)
 create mode 100644 docs/features/l2_cat.pandoc

-- 
2.7.4


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel