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Subject: Re: [RFC] para virt interface of perf to support kvm guest os
 statistics collection in guest os
From: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Avi Kivity <avi@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
       kvm@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
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Date: Fri, 11 Jun 2010 10:11:43 +0800
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On Thu, 2010-06-10 at 11:50 +0200, Peter Zijlstra wrote:
> On Thu, 2010-06-10 at 10:21 +0800, Zhang, Yanmin wrote:
> > . The ABI mostly includes the definition of struct perf_event_attr,
> > guest_perf_counter,
> > and hypercalls. 
> 
> Note that perf_event_attr isn't guaranteed to be stable between kernels,
> it can grow.
Thanks. I need create a small new attr structure to save some key data members.

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