Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756058AbZDBDKW (ORCPT ); Wed, 1 Apr 2009 23:10:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752152AbZDBDKA (ORCPT ); Wed, 1 Apr 2009 23:10:00 -0400 Received: from rhun.apana.org.au ([64.62.148.172]:38038 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751291AbZDBDJ7 (ORCPT ); Wed, 1 Apr 2009 23:09:59 -0400 Date: Thu, 2 Apr 2009 11:09:35 +0800 From: Herbert Xu To: Anthony Liguori Cc: andi@firstfloor.org, ghaskins@novell.com, linux-kernel@vger.kernel.org, agraf@suse.de, pmullaney@novell.com, pmorreale@novell.com, rusty@rustcorp.com.au, netdev@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [RFC PATCH 00/17] virtual-bus Message-ID: <20090402030935.GA27836@gondor.apana.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49D3B64F.6070703@codemonkey.ws> Organization: Core X-Newsgroups: apana.lists.os.linux.kernel,apana.lists.os.linux.netdev User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1002 Lines: 23 Anthony Liguori 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~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/