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From: "Zhang, Haozhong" <haozhong.zhang@intel.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: Wei Liu <wei.liu2@citrix.com>,
	Ian Campbell <ian.campbell@citrix.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	"Nakajima, Jun" <jun.nakajima@intel.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
	Jan Beulich <jbeulich@suse.com>, Keir Fraser <keir@xen.org>
Subject: Re: [PATCH v2 2/2] x86/hvm: add support for pcommit instruction
Date: Tue, 5 Jan 2016 15:15:00 +0800	[thread overview]
Message-ID: <20160105071500.GA2440@hz-desktop.sh.intel.com> (raw)
In-Reply-To: <AADFC41AFE54684AB9EE6CBC0274A5D15F7644A6@SHSMSX101.ccr.corp.intel.com>

On 01/05/16 15:08, Tian, Kevin wrote:
> > From: Zhang, Haozhong
> > Sent: Wednesday, December 30, 2015 7:49 PM
> > 
> > Pass PCOMMIT CPU feature into HMV domain. Currently, we do not intercept
> > pcommit instruction for L1 guest, and allow L1 to intercept pcommit
> > instruction for L2 guest.
> 
> Could you elaborate why different policies are used for L1/L2? And better
> add a comment in code (at least for vvmx) to describe the intention.
> 
> Thanks
> Kevin

The intention is that we completely expose pcommit (both the
instruction and VMEXIT caused by pcommit) to L1.

Haozhong

  reply	other threads:[~2016-01-05  7:15 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-30 11:48 [PATCH v2 0/2] add support for vNVDIMM - Part 1: enable instructions Haozhong Zhang
2015-12-30 11:48 ` [PATCH v2 1/2] x86/hvm: allow guest to use clflushopt and clwb Haozhong Zhang
2015-12-30 11:53   ` Andrew Cooper
2016-01-05  7:02   ` Tian, Kevin
2016-01-07 13:49   ` Jan Beulich
2016-01-07 14:01     ` Andrew Cooper
2016-01-07 14:34       ` Jan Beulich
2016-01-08  8:27         ` Haozhong Zhang
2016-01-08  8:39           ` Jan Beulich
2015-12-30 11:48 ` [PATCH v2 2/2] x86/hvm: add support for pcommit instruction Haozhong Zhang
2015-12-30 11:57   ` Andrew Cooper
2016-01-05  7:08   ` Tian, Kevin
2016-01-05  7:15     ` Zhang, Haozhong [this message]
2016-01-05  7:19       ` Tian, Kevin
2016-01-05  7:32         ` Zhang, Haozhong
2016-01-05  7:45           ` Tian, Kevin
2016-01-07 13:53   ` Jan Beulich
2016-01-08  1:15     ` Haozhong Zhang
2016-01-08  7:54       ` Jan Beulich
2016-01-08  7:58         ` Haozhong Zhang
2016-01-04 11:10 ` [PATCH v2 0/2] add support for vNVDIMM - Part 1: enable instructions Wei Liu

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