From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Guangrong Subject: Re: [PATCH 2/5] KVM: MMU: Optimize gpte_access() slightly Date: Thu, 13 Sep 2012 19:36:24 +0800 Message-ID: <5051C538.30104@linux.vnet.ibm.com> References: <1347460194-11807-1-git-send-email-avi@redhat.com> <1347460194-11807-3-git-send-email-avi@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Marcelo Tosatti , kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from e23smtp04.au.ibm.com ([202.81.31.146]:37554 "EHLO e23smtp04.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754943Ab2IMLgz (ORCPT ); Thu, 13 Sep 2012 07:36:55 -0400 Received: from /spool/local by e23smtp04.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 13 Sep 2012 21:34:08 +1000 Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay05.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q8DBR98c45154422 for ; Thu, 13 Sep 2012 21:27:09 +1000 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q8DBaQmn002537 for ; Thu, 13 Sep 2012 21:36:27 +1000 In-Reply-To: <1347460194-11807-3-git-send-email-avi@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 09/12/2012 10:29 PM, Avi Kivity wrote: > If nx is disabled, then is gpte[63] is set we will hit a reserved > bit set fault before checking permissions; so we can ignore the > setting of efer.nxe. Reviewed-by: Xiao Guangrong