From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Roedel, Joerg" Subject: Re: [PATCH 2/2] Provide fast path for "rep ins" emulation if possible. Date: Thu, 24 May 2012 12:34:57 +0200 Message-ID: <20120524103457.GK2604@amd.com> References: <1337782095-32287-1-git-send-email-gleb@redhat.com> <1337782095-32287-3-git-send-email-gleb@redhat.com> <4FBCF6EB.8040604@redhat.com> <4FBCF8FB.6050308@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Gleb Natapov , , To: Avi Kivity Return-path: Received: from va3ehsobe010.messaging.microsoft.com ([216.32.180.30]:5167 "EHLO va3outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932231Ab2EXKfD (ORCPT ); Thu, 24 May 2012 06:35:03 -0400 Content-Disposition: inline In-Reply-To: <4FBCF8FB.6050308@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, May 23, 2012 at 05:49:31PM +0300, Avi Kivity wrote: > On 05/23/2012 05:40 PM, Avi Kivity wrote: > > On 05/23/2012 05:08 PM, Gleb Natapov wrote: > > If decode assists are not available, we still need to emulate, see 15.33.5. > > > > Joerg, the 2010 version of the manual says that the effective segment > (10:12) is only available with decode assists. The 2012 version says > it's unconditional. What's correct? It is still conditional and only available with decode-assists. I will talk to the APM authors to clarify this in the documentation. Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632