Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751436AbWCVXLd (ORCPT ); Wed, 22 Mar 2006 18:11:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751432AbWCVXLd (ORCPT ); Wed, 22 Mar 2006 18:11:33 -0500 Received: from ns2.suse.de ([195.135.220.15]:14270 "EHLO mx2.suse.de") by vger.kernel.org with ESMTP id S1751436AbWCVXLc (ORCPT ); Wed, 22 Mar 2006 18:11:32 -0500 From: Andi Kleen To: Zachary Amsden Subject: Re: [RFC, PATCH 1/24] i386 Vmi documentation II Date: Wed, 22 Mar 2006 23:38:42 +0100 User-Agent: KMail/1.9.1 Cc: virtualization@lists.osdl.org, Linus Torvalds , Linux Kernel Mailing List , Xen-devel , Andrew Morton , Dan Hecht , Dan Arai , Anne Holler , Pratap Subrahmanyam , Christopher Li , Joshua LeVasseur , Chris Wright , Rik Van Riel , Jyothy Reddy , Jack Lo , Kip Macy , Jan Beulich , Ky Srinivasan , Wim Coekaerts , Leendert van Doorn References: <200603131759.k2DHxeep005627@zach-dev.vmware.com> <200603222239.46604.ak@suse.de> <4421D379.3090405@vmware.com> In-Reply-To: <4421D379.3090405@vmware.com> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200603222338.44919.ak@suse.de> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 708 Lines: 19 On Wednesday 22 March 2006 23:45, Zachary Amsden wrote: > I propose an entirely different approach - use segmentation. That would require a lot of changes to save/restore the segmentation register at kernel entry/exit since there is no swapgs on i386. And will be likely slower there too and also even slow down the VMI-kernel-no-hypervisor. Still might be the best option. How did that rumoured Xenolinux-over-VMI implementation solve that problem? -Andi - 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/