From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sander van Leeuwen Subject: Re: KVM & VMX root mode Date: Mon, 03 Sep 2007 09:29:05 +0200 Message-ID: <46DBB7C1.60708@innotek.de> References: <46D81156.8050100@innotek.de> <46D97669.7050609@qumranet.com> <46D980C2.3040501@innotek.de> <46D98C53.4070604@qumranet.com> <46D9A030.1020904@innotek.de> <46D9B297.5070502@qumranet.com> <20070903031403.GA16190@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, Avi Kivity To: "Daniel P. Berrange" Return-path: In-Reply-To: <20070903031403.GA16190-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Daniel P. Berrange wrote: > While one could in theory change KVM to only activate VMX when a guest is > started this wouldn't give a significant improvement to the user experiance. > Instead of being able to rely on KVM working, it now may or may not work > depending on whether you happen to have a VirtualBox guest running or not & > vica-verca. You still would not be able to run guests from both concurrently > which should surely be the real goal. The only way I see the latter being > achieved is if VirtualBox were to leverage the existing KVM kernel APIs to > access the underlying hardware virt capabilities. > You are mistaken. VT-x allows multiple clients to work concurrently. There's only one catch: all those clients should follow certain guidelines. -- Kind regards / mit freundlichen Gruessen / Met vriendelijke groet Sander van Leeuwen innoTek GmbH http://www.innotek.de Germany ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/