From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NKbLF-00061l-Vm for qemu-devel@nongnu.org; Tue, 15 Dec 2009 12:37:46 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NKbLB-00060R-1f for qemu-devel@nongnu.org; Tue, 15 Dec 2009 12:37:45 -0500 Received: from [199.232.76.173] (port=50851 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NKbLA-00060O-SR for qemu-devel@nongnu.org; Tue, 15 Dec 2009 12:37:40 -0500 Received: from mail-yx0-f188.google.com ([209.85.210.188]:55643) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NKbLA-0005L7-97 for qemu-devel@nongnu.org; Tue, 15 Dec 2009 12:37:40 -0500 Received: by yxe26 with SMTP id 26so116931yxe.4 for ; Tue, 15 Dec 2009 09:37:39 -0800 (PST) Message-ID: <4B27C95E.5080200@codemonkey.ws> Date: Tue, 15 Dec 2009 11:37:34 -0600 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] cpuid problem in upstream qemu with kvm References: <20091214194432.GC6150@redhat.com> <4B2698A9.9090107@codemonkey.ws> <20091214200002.GA27769@redhat.com> <4B2699BB.1090302@codemonkey.ws> <20091214201049.GD6150@redhat.com> <4B269D99.8080404@codemonkey.ws> <20091214203125.GH6150@redhat.com> <4B26A619.7070503@codemonkey.ws> <20091214211024.GD6100@redhat.com> <4B26B2F3.9080102@codemonkey.ws> <20091215142820.GA23472@redhat.com> In-Reply-To: <20091215142820.GA23472@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: qemu-devel@nongnu.org, Gleb Natapov , avi@redhat.com Michael S. Tsirkin wrote: > I don't think it does: cpuid is an unpriveledged operation, > is it not? > We (qemu) ask the kernel (kvm.ko) to filter out the features bits from the cpuid we expose to the guest in order to remove feature bits it (kvm.ko) does not support. Regards, Anthony Liguori