linux-kernel - Re: [RFC PATCH 0/3] generic hypercall support

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Date:	Fri, 08 May 2009 22:06:03 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Anthony Liguori <anthony@...emonkey.ws>
CC:	Gregory Haskins <ghaskins@...ell.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Chris Wright <chrisw@...s-sol.org>,
	Gregory Haskins <gregory.haskins@...il.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [RFC PATCH 0/3] generic hypercall support

Anthony Liguori wrote:
>> ia64 uses mmio to emulate pio, so the cost may be different.  I agree 
>> on x86 it's almost negligible.
>
> Yes, I misunderstood that they actually emulated it like that.  
> However, ia64 has no paravirtualization support today so surely, we 
> aren't going to be justifying this via ia64, right?
>

Right.


-- 
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