From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: thread/core siblings info for guests Date: Tue, 21 Oct 2008 10:52:42 +0200 Message-ID: <48FD985A.6070606@redhat.com> References: <8EA2C2C4116BF44AB370468FBF85A7779B418DEF@orsmsx504.amr.corp.intel.com> <48E88C62.9030103@redhat.com> <1224283519.18637.23.camel@lnitindesktop.sc.intel.com> <48FAFE0B.5030209@redhat.com> <1224527821.15135.4.camel@lnitindesktop.sc.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" , "kraxel@redhat.com" , "chrisw@sous-sol.org" To: nitin.a.kamble@intel.com Return-path: Received: from mx2.redhat.com ([66.187.237.31]:42353 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751352AbYJUIwk (ORCPT ); Tue, 21 Oct 2008 04:52:40 -0400 In-Reply-To: <1224527821.15135.4.camel@lnitindesktop.sc.intel.com> Sender: kvm-owner@vger.kernel.org List-ID: Nitin A Kamble wrote: > Hi Avi, > I do find that ioctl in the kvm kernel module code. and the qemu code > can do the ioctl to get the cpuinfo bits. But seems like nobody is using > this ioctl yet. What was the purpose of this code? > > It's for -cpu host and for implementing greatest common denominator type of calculations. Qemu doesn't use it yet. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.