From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joerg Roedel <joro@8bytes.org>
Subject: Re: [PATCH v5 rebased 0/4] nested vmx: enable VMCS
 shadowing feature
Date: Tue, 29 Jan 2013 11:19:12 +0100
Message-ID: <20130129101912.GB25591@8bytes.org>
References: <1358951532-20302-1-git-send-email-dongxiao.xu@intel.com>
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To: Dongxiao Xu <dongxiao.xu@intel.com>
Cc: jun.nakajima@intel.com, xen-devel@lists.xensource.com, eddie.dong@intel.com, xiantao.zhang@intel.com, JBeulich@suse.com
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Hi Dongxiao,

On Wed, Jan 23, 2013 at 10:32:08PM +0800, Dongxiao Xu wrote:
> The main purpose of this feature is to reduce or eliminate the number of VM exit
> for non-root VMREAD and VMWRITE. It provides the capability to link a
> "virtual VMCS" with the current running VMCS, so that after VM entry, the
> non-root VMREAD and VMWRITE can get/set related data directly from/to the
> "virtual VMCS" without trap and emulation.

This looks like a neat feature. I am wondering when I can use it. Is it
planned for Haswell or a later chip?


Thanks,

	Joerg