From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765967AbZD3RmN (ORCPT ); Thu, 30 Apr 2009 13:42:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1764720AbZD3RIk (ORCPT ); Thu, 30 Apr 2009 13:08:40 -0400 Received: from kroah.org ([198.145.64.141]:56895 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1764580AbZD3RIV (ORCPT ); Thu, 30 Apr 2009 13:08:21 -0400 X-Mailbox-Line: From gregkh@mini.kroah.org Thu Apr 30 09:57:49 2009 Message-Id: <20090430165749.430745380@mini.kroah.org> User-Agent: quilt/0.48-1 Date: Thu, 30 Apr 2009 09:57:04 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , Willy Tarreau , Rodrigo Rubira Branco , Jake Edge , Eugene Teo , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, mtosatti@redhat.com, avi@redhat.com Subject: [patch 75/88] KVM: VMX: Flush volatile msrs before emulating rdmsr References: <20090430165549.117010404@mini.kroah.org> Content-Disposition: inline; filename=kvm-vmx-flush-volatile-msrs-before-emulating-rdmsr.patch In-Reply-To: <20090430170122.GA16015@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.28-stable review patch. If anyone has any objections, please let us know. ------------------ From: Avi Kivity (cherry picked from 516a1a7e9dc80358030fe01aabb3bedf882db9e2) Some msrs (notable MSR_KERNEL_GS_BASE) are held in the processor registers and need to be flushed to the vcpu struture before they can be read. This fixes cygwin longjmp() failure on Windows x64. Signed-off-by: Avi Kivity Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/vmx.c | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -897,6 +897,7 @@ static int vmx_get_msr(struct kvm_vcpu * data = vmcs_readl(GUEST_SYSENTER_ESP); break; default: + vmx_load_host_state(to_vmx(vcpu)); msr = find_msr_entry(to_vmx(vcpu), msr_index); if (msr) { data = msr->data;