From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: Booting/installing WindowsNT Date: Wed, 05 May 2010 11:59:06 +0300 Message-ID: <4BE1335A.5000407@redhat.com> References: <4BDB44C2.7090204@msgid.tls.msk.ru> <4BDB4E58.50805@msgid.tls.msk.ru> <4BDD4E32.2080503@redhat.com> <4BDDA455.8090001@msgid.tls.msk.ru> <4BDE882F.5000009@amd.com> <4BDE8DF4.8070604@redhat.com> <4BDE9757.8090809@amd.com> <4BDF01CA.80505@msgid.tls.msk.ru> <4BDFE3A7.2050706@redhat.com> <4BE00E2A.2010901@amd.com> <4BE015BF.2010401@msgid.tls.msk.ru> <4BE03CD7.8090105@amd.com> <4BE049F5.4000500@redhat.com> <4BE12D1E.5000602@amd.com> <4BE131AA.8040506@msgid.tls.msk.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Andre Przywara , KVM list To: Michael Tokarev Return-path: Received: from mx1.redhat.com ([209.132.183.28]:23211 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933344Ab0EEI7X (ORCPT ); Wed, 5 May 2010 04:59:23 -0400 In-Reply-To: <4BE131AA.8040506@msgid.tls.msk.ru> Sender: kvm-owner@vger.kernel.org List-ID: On 05/05/2010 11:51 AM, Michael Tokarev wrote: >> In the AMD CPUID guide leafs 0000_0002 till 0000_0004 are reserved, the >> CPU that Michael and I used (K8RevF) actually have a max leaf of 1 here. >> Default qemu64 has a max leaf of 4. >> So by saying -cpu qemu64,level=1 (or 2 or 3) it works for me. >> Modern OS only read leaf 4 on Intel systems, it seems that NT4 is >> missing this. > OK, I tackled this down. It is the max CPUID level that differs. > > Confirmed, with -cpu qemu64,level=[123] it works for me as well. > > Note again that after service pack 6 (I haven't tried other SPs), > the problem goes away entirely -- winNT SP6 works with the default > kvm cpu just fine. Interesting, may be a guest bug that was fixed later. -- error compiling committee.c: too many arguments to function