From: Chao Peng <chao.p.peng@linux.intel.com>
To: He Chen <he.chen@linux.intel.com>
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,
xen-devel@lists.xenproject.org, keir@xen.org
Subject: Re: [PATCH v7 1/3] x86: Support enable CDP by boot parameter and add get CDP status
Date: Wed, 14 Oct 2015 10:02:27 +0800 [thread overview]
Message-ID: <20151014020227.GA4427@pengc-linux.bj.intel.com> (raw)
In-Reply-To: <1444726426-10567-2-git-send-email-he.chen@linux.intel.com>
On Tue, Oct 13, 2015 at 04:53:44PM +0800, He Chen wrote:
> Add boot parameter `psr=cdp` to enable CDP at boot time.
> Intel Code/Data Prioritization (CDP) feature is based on CAT. Note that
> cos_max would be half when CDP is on. struct psr_cat_cbm is extended to
> support CDP operation. Extend psr_get_cat_l3_info sysctl to get CDP
> status.
>
> Signed-off-by: He Chen <he.chen@linux.intel.com>
> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
> ---
> Changes in v7:
> * write CDP data mask (mask1) before turning CDP on
> * check CDP status before clear enabled bit in function cat_cpu_fini
Reviewed-by: Chao Peng <chao.p.peng@linux.intel.com>
next prev parent reply other threads:[~2015-10-14 2:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-13 8:53 [PATCH v7 0/3] detect and initialize CDP (Code/Data Prioritization) feature He Chen
2015-10-13 8:53 ` [PATCH v7 1/3] x86: Support enable CDP by boot parameter and add get CDP status He Chen
2015-10-14 2:02 ` Chao Peng [this message]
2015-10-13 8:53 ` [PATCH v7 2/3] x86: add domctl cmd to set/get CDP code/data CBM He Chen
2015-10-13 15:38 ` Jan Beulich
2015-10-14 2:07 ` Chao Peng
2015-10-15 14:57 ` Olaf Hering
2015-10-15 15:10 ` Wei Liu
2015-10-15 15:22 ` Olaf Hering
2015-10-15 15:26 ` Wei Liu
2015-10-15 15:30 ` Wei Liu
2015-10-16 9:10 ` Olaf Hering
2015-10-15 15:47 ` Jan Beulich
2015-10-16 8:24 ` He Chen
2015-10-16 8:32 ` Jan Beulich
2015-10-13 8:53 ` [PATCH v7 3/3] tools & docs: add tools and docs support for Intel CDP He Chen
2015-10-13 16:23 ` Ian Campbell
2015-10-14 2:38 ` Chao Peng
2015-10-14 8:52 ` Ian Campbell
2015-10-14 9:08 ` Dario Faggioli
2015-10-14 9:20 ` Ian Campbell
2015-10-14 10:52 ` Jan Beulich
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