From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933017Ab1AMPwc (ORCPT ); Thu, 13 Jan 2011 10:52:32 -0500 Received: from tx2ehsobe003.messaging.microsoft.com ([65.55.88.13]:52607 "EHLO TX2EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932979Ab1AMPwb (ORCPT ); Thu, 13 Jan 2011 10:52:31 -0500 X-SpamScore: -24 X-BigFish: VPS-24(zzbb2cK1432N98dNzz1202hzz15d4Rz32i637h668h) X-Forefront-Antispam-Report: KIP:(null);UIP:(null);IPVD:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0LEYXFA-02-BTA-02 X-M-MSG: Date: Thu, 13 Jan 2011 16:52:24 +0100 From: "Roedel, Joerg" To: Jan Kiszka CC: Avi Kivity , Marcelo Tosatti , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "stable@kernel.org" Subject: Re: [PATCH 1/2] KVM: SVM: Fix NMI path when NMI happens in guest mode Message-ID: <20110113155224.GB23914@amd.com> References: <1294932178-26866-1-git-send-email-joerg.roedel@amd.com> <1294932178-26866-2-git-send-email-joerg.roedel@amd.com> <4D2F1ED1.1020001@siemens.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <4D2F1ED1.1020001@siemens.com> Organization: Advanced Micro Devices =?iso-8859-1?Q?GmbH?= =?iso-8859-1?Q?=2C_Karl-Hammerschmidt-Str=2E_34=2C_85609_Dornach_bei_M=FC?= =?iso-8859-1?Q?nchen=2C_Gesch=E4ftsf=FChrer=3A_Thomas_M=2E_McCoy=2C_Giuli?= =?iso-8859-1?Q?ano_Meroni=2C_Andrew_Bowd=2C_Sitz=3A_Dornach=2C_Gemeinde_A?= =?iso-8859-1?Q?schheim=2C_Landkreis_M=FCnchen=2C_Registergericht_M=FCnche?= =?iso-8859-1?Q?n=2C?= HRB Nr. 43632 User-Agent: Mutt/1.5.20 (2009-06-14) X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 13, 2011 at 10:48:33AM -0500, Jan Kiszka wrote: > Am 13.01.2011 16:22, Joerg Roedel wrote: > > #ifdef CONFIG_X86_64 > > wrmsrl(MSR_GS_BASE, svm->host.gs_base); > > + wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gs); > > #else > > loadsegment(fs, svm->host.fs); > > #endif > > Doesn't this also obsolete the wrmsrl(MSR_KERNEL_GS_BASE) in svm_vcpu_put? Yes it does. Thanks. Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632