From mboxrd@z Thu Jan 1 00:00:00 1970 From: Herbert Xu Subject: Re: [RFC PATCH 00/17] virtual-bus Date: Thu, 2 Apr 2009 11:11:41 +0800 Message-ID: <20090402031141.GA27878@gondor.apana.org.au> References: <20090401204039.GR18394@sequoia.sous-sol.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: anthony@codemonkey.ws, 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 To: Chris Wright Return-path: Content-Disposition: inline In-Reply-To: <20090401204039.GR18394@sequoia.sous-sol.org> Sender: netdev-owner@vger.kernel.org List-Id: kvm.vger.kernel.org Chris Wright 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. > > And more stuff in the kernel can come at the potential cost of weakening > protection/isolation. Protection/isolation always comes at a cost. Not everyone wants to pay that, just like health insurance :) We should enable the users to choose which model they want, based on their needs. 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