From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <ak@suse.de>
Subject: Re: [PATCH] Add I/O hypercalls for i386 paravirt
Date: Wed, 22 Aug 2007 13:23:52 +0200
Message-ID: <20070822112352.GQ32640@bingen.suse.de>
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To: Avi Kivity <avi@qumranet.com>
Cc: Andi Kleen <ak@suse.de>, Rusty Russell <rusty@rustcorp.com.au>, Andrew Morton <akpm@osdl.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Chris Wright <chrisw@sous-sol.org>, Virtualization Mailing List <virtualization@lists.osdl.org>
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On Wed, Aug 22, 2007 at 01:23:43PM +0300, Avi Kivity wrote:
> Andi Kleen wrote:
> >>I don't see why it's intrusive -- they all use the APIs, right?
> >>    
> >
> >Yes, but it still changes them. It might have a larger impact
> >on code size for example. 
> >  
> 
> Only if CONFIG_PARAVIRT is defined.  

Which eventually distribution kernels will do.

> And even then, all the performance 
> sensitive stuff uses mmio, no?

Not worried about performance, but just impact on code size etc.

-Andi