From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arun Sharma <arun.sharma@intel.com>
Subject: Re: [PATCH] Use hypercalls instead of accessing debug
	registers directly.
Date: Thu, 07 Jul 2005 16:38:27 -0700
Message-ID: <42CDBCF3.60100@intel.com>
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To: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Cc: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>, xen-devel@lists.xensource.com
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Ian Pratt wrote:
>  
> 
> 
>>Use hypercalls instead of accessing debug registers directly.
> 
> 
> Is this based on measurement? If the debug registers aren't on the
> critical path its probably not worth the change. If they are, they
> should probably be part of a multicall.

It's not on the critical path. We probably should just emulate the 
instruction on the GP fault.

	-Arun