From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: memtest 4.20+ does not work with -cpu host Date: Mon, 10 Sep 2012 15:32:26 +0300 Message-ID: <504DDDDA.9040001@redhat.com> References: <5034F587.4000403@dlhnet.de> <5048BA0F.3070300@redhat.com> <504DC9BC.1060407@dlhnet.de> <504DCF1A.1@redhat.com> <504DD483.6050104@dlhnet.de> <504DD9F5.2040300@redhat.com> <20120910122120.GA20907@redhat.com> <504DDD37.5000804@dlhnet.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Gleb Natapov , Paolo Bonzini , "qemu-devel@nongnu.org" , "kvm@vger.kernel.org" To: Peter Lieven Return-path: Received: from mx1.redhat.com ([209.132.183.28]:37559 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756493Ab2IJMca (ORCPT ); Mon, 10 Sep 2012 08:32:30 -0400 In-Reply-To: <504DDD37.5000804@dlhnet.de> Sender: kvm-owner@vger.kernel.org List-ID: On 09/10/2012 03:29 PM, Peter Lieven wrote: > On 09/10/12 14:21, Gleb Natapov wrote: >> On Mon, Sep 10, 2012 at 02:15:49PM +0200, Paolo Bonzini wrote: >>> Il 10/09/2012 13:52, Peter Lieven ha scritto: >>>>> dd if=/dev/cpu/0/msr skip=$((0x194)) bs=8 count=1 | xxd >>>>> dd if=/dev/cpu/0/msr skip=$((0xCE)) bs=8 count=1 | xxd >>>> it only works without the skip. but the msr device returns all zeroes. >>> Hmm, the strange API of the MSR device doesn't work well with dd (dd >>> skips to 0x194 * 8 because bs is 8. You can try this program: >>> >> There is rdmsr/wrmsr in msr-tools. > rdmsr returns it cannot read those MSRs. regardless if I use -cpu host > or -cpu qemu64. On the host. -- error compiling committee.c: too many arguments to function