From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Simpson Subject: Re: Setting nx bit in virtual CPU Date: Tue, 06 Apr 2010 23:31:23 +0100 Message-ID: <4BBBB63B.60007@huskydog.org.uk> References: <4BB126AC.8040401@huskydog.org.uk> <4BB45CA2.5040304@redhat.com> <4BB65C9D.3070505@huskydog.org.uk> <4BB99F03.3020208@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from server1.huskydog.org.uk ([81.187.172.195]:54308 "EHLO gordon.huskydog.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753218Ab0DFWb1 (ORCPT ); Tue, 6 Apr 2010 18:31:27 -0400 In-Reply-To: <4BB99F03.3020208@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 05/04/10 09:27, Avi Kivity wrote: > On 04/03/2010 12:07 AM, Richard Simpson wrote: >> Nope, both Kernels are 64 bit. >> >> uname -a Host: Linux gordon 2.6.27-gentoo-r8 #5 Sat Mar 14 18:01:59 GMT >> 2009 x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux >> >> uname -a Guest: Linux andrew 2.6.28-hardened-r9 #4 Mon Jan 18 22:39:31 >> GMT 2010 x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux >> >> As you can see, both kernels are a little old, and I have been wondering >> if that might be part of the problem. The Guest one is old because that >> is the latest stable hardened version in Gentoo. The host one is old >> because of: >> > > 2.6.27 should be plenty fine for nx. Really the important bit is that > the host kernel has nx enabled. Can you check if that is so? > Umm, could you give me a clue about how to do that. It is some time since I configured the host kernel, but I do have a /proc/config.gz. Could I check by looking in that? Thanks