From: He Chen <he.chen@linux.intel.com>
To: xen-devel@lists.xenproject.org
Cc: wei.liu2@citrix.com, ian.campbell@citrix.com,
stefano.stabellini@eu.citrix.com, andrew.cooper3@citrix.com,
ian.jackson@eu.citrix.com, jbeulich@suse.com,
chao.p.peng@linux.intel.com, keir@xen.org
Subject: [PATCH v3 0/4] Intel Code and Data Prioritization (CDP) feature enabling
Date: Mon, 14 Sep 2015 11:27:03 +0800 [thread overview]
Message-ID: <1442201227-8610-1-git-send-email-he.chen@linux.intel.com> (raw)
Changes in v3:
- x86: remove redundant CDP field in cat_socket_enable (suggested by Chao)
- tools: simplify CBM setting function in tools (suggested by Jan)
- docs: Add boot parameter description (suggested by Chao & Ian)
- code style
Changes in v2:
- x86: Enable CDP by boot parameter instead of enabling/disabling CDP at
runtime (suggested by Andrew)
- tools: remove psr-cat-cdp-enable/disable xl commands
- code style
Code/Data Prioritization(CDP) is offered in Intel Broadwell and later server
platforms, which is an extension of CAT. CDP enables isolation and separate
prioritization of code and data fetches to the L3 cache in a software
configurable manner, which can enable workload prioritization and tuning of
cache capacity to the characteristics of the workload. CDP extends Cache
Allocation Technology (CAT) by providing separate code and data capacity bit
masks(CBM) per Class of Service (COS). CDP is used on VM basis in the Xen
implementation.
More information about CDP, please refer to Intel SDM, Volumn 3, section 17.16
http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-manual-325462.pdf
This patch series enables CDP feature in Xen based on CAT code, and extends
CBM operation functions to support CDP. For all the changes, please see in
each patch.
This patchset has been tested on Intel Broadwell server platform.
To make this patchset better, any comment or suggestion is welcomed, I would
really appreciate it.
Thanks
He Chen (4):
x86: Support enable CDP by boot parameter and add get CDP status
x86: add domctl cmd to set/get CDP code/data CBM
tools: add tools support for Intel CDP
docs: add document to introduce CDP command
docs/man/xl.pod.1 | 14 +++
docs/misc/xen-command-line.markdown | 8 +-
docs/misc/xl-psr.markdown | 42 ++++++-
tools/libxc/include/xenctrl.h | 7 +-
tools/libxc/xc_psr.c | 17 ++-
tools/libxl/libxl.h | 1 +
tools/libxl/libxl_psr.c | 20 ++-
tools/libxl/libxl_types.idl | 3 +
tools/libxl/xl_cmdimpl.c | 49 ++++++--
tools/libxl/xl_cmdtable.c | 3 +
xen/arch/x86/domctl.c | 32 ++++-
xen/arch/x86/psr.c | 240 +++++++++++++++++++++++++++++-------
xen/arch/x86/sysctl.c | 5 +-
xen/include/asm-x86/msr-index.h | 3 +
xen/include/asm-x86/psr.h | 23 +++-
xen/include/public/domctl.h | 4 +
xen/include/public/sysctl.h | 2 +
17 files changed, 399 insertions(+), 74 deletions(-)
--
1.9.1
next reply other threads:[~2015-09-14 3:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-14 3:27 He Chen [this message]
2015-09-14 3:27 ` [PATCH v3 1/4] x86: Support enable CDP by boot parameter and add get CDP status He Chen
2015-09-14 8:39 ` Chao Peng
2015-09-14 14:12 ` Jan Beulich
2015-09-14 3:27 ` [PATCH v3 2/4] x86: add domctl cmd to set/get CDP code/data CBM He Chen
2015-09-14 9:04 ` Chao Peng
2015-09-14 14:28 ` Jan Beulich
2015-09-14 3:27 ` [PATCH v3 3/4] tools: add tools support for Intel CDP He Chen
2015-09-14 9:11 ` Chao Peng
2015-09-14 3:27 ` [PATCH v3 4/4] docs: add document to introduce CDP command He Chen
2015-09-14 9:35 ` Chao Peng
2015-09-14 9:48 ` [PATCH v3 0/4] Intel Code and Data Prioritization (CDP) feature enabling Chao Peng
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1442201227-8610-1-git-send-email-he.chen@linux.intel.com \
--to=he.chen@linux.intel.com \
--cc=andrew.cooper3@citrix.com \
--cc=chao.p.peng@linux.intel.com \
--cc=ian.campbell@citrix.com \
--cc=ian.jackson@eu.citrix.com \
--cc=jbeulich@suse.com \
--cc=keir@xen.org \
--cc=stefano.stabellini@eu.citrix.com \
--cc=wei.liu2@citrix.com \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.