linux-kernel - Re: [RFC PATCH 00/17] virtual-bus

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Message-ID: <20090402030935.GA27836@gondor.apana.org.au>
Date:	Thu, 2 Apr 2009 11:09:35 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Anthony Liguori <anthony@...emonkey.ws>
Cc:	andi@...stfloor.org, ghaskins@...ell.com,
	linux-kernel@...r.kernel.org, agraf@...e.de, pmullaney@...ell.com,
	pmorreale@...ell.com, rusty@...tcorp.com.au,
	netdev@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [RFC PATCH 00/17] virtual-bus

Anthony Liguori <anthony@...emonkey.ws> wrote:
>
> That said, I don't think we're bound today by the fact that we're in 
> userspace.  Rather we're bound by the interfaces we have between the 
> host kernel and userspace to generate IO.  I'd rather fix those 
> interfaces than put more stuff in the kernel.

I'm sorry but I totally disagree with that.  By having our IO
infrastructure in user-space we've basically given up the main
advantage of kvm, which is that the physical drivers operate in
the same environment as the hypervisor.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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