From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [RFC] Physical hot-add cpus and TSC
Date: Fri, 28 May 2010 08:03:42 +0100
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To: "Jiang, Yunhong" <yunhong.jiang@intel.com>, Dan Magenheimer <dan.magenheimer@oracle.com>, "Xen-Devel (xen-devel@lists.xensource.com)" <xen-devel@lists.xensource.com>, Ian Pratt <Ian.Pr>
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On 28/05/2010 07:29, "Jiang, Yunhong" <yunhong.jiang@intel.com> wrote:

>> It is impossible to meet that level of TSC consistency when doing CPU
>> physical-add, without emulating all guest TSCs. We may need to add that as
>> an option, at least, to keep a small class of apps that care (like Oracle's
>> DB, we assume) happy.
> 
> So a option to make TSC_MODE_DEFAULT as d->arch.vtsc=0 ?.
> When CPU_hotadd, we should at least warning if that option is not set, am I
> right?

Xen-unstable:21469.

 -- Keir