From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: Question about the current vcpu.
Date: Fri, 27 Mar 2009 22:16:46 -0700
Message-ID: <49CDB2BE.2080504@goop.org>
References: <fce3faea0903271837s5efea0bao2dd2be93142e0ae@mail.gmail.com>
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To: p z <zpengxen@gmail.com>
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p z wrote:
>  But  the physical machine may be multi-core ,thus there may be two or 
> more vcpus running  in parallel on different cores.Then which vcpu is 
> the current? How should  I understand the current vcpu please? 

"current" returns the vcpu currently running on this physical cpu (ie, 
the one that's executing "current" itself).   It will return different 
results for each pcpu at a given instant, and will return different 
values for a given pcpu over time as different vcpus are scheduled on itnb.

    J