From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Lieven Subject: Re: [Qemu-devel] Re: disable clocksource=kvm-clock Date: Tue, 01 Jun 2010 15:57:16 +0200 Message-ID: <4C0511BC.7080803@dlh.net> References: <4C050743.3030603@dlh.net> <4C05087A.9090803@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from zion.dlh.net ([91.198.192.1]:56239 "EHLO mail.dlh.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755885Ab0FAN5g (ORCPT ); Tue, 1 Jun 2010 09:57:36 -0400 In-Reply-To: <4C05087A.9090803@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Avi Kivity wrote: > On 06/01/2010 04:12 PM, Peter Lieven wrote: >> hi, >> >> is it possible to avoid detection of clocksource=kvm_clock in a linux >> guest by >> patching the qemu-kvm binary? >> i would like to be able to avoid a guest detecting kvm-clock until >> bug #584516 >> is fixed without modifying all guest systems and reverting that later. >> > > Newer qemu-kvm's will have this feature (using -cpu ...,-kvmclock). > with latest git, i can supply this switch, but cat /sys/devices/system/clocksource/clocksource0/current_clocksource still shows kvm_clock in an opensuse 11.2 64-bit or an ubuntu 10.04 64-bit guest.