From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:44675 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422842AbbD2MHD (ORCPT ); Wed, 29 Apr 2015 08:07:03 -0400 Subject: Patch "KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save" has been added to the 4.0-stable tree To: namit@cs.technion.ac.il, gregkh@linuxfoundation.org, pbonzini@redhat.com Cc: , From: Date: Wed, 29 Apr 2015 14:06:52 +0200 In-Reply-To: <1428864435-4732-1-git-send-email-namit@cs.technion.ac.il> Message-ID: <1430309212231139@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save to the 4.0-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: kvm-x86-fix-msr_ia32_bndcfgs-in-msrs_to_save.patch and it can be found in the queue-4.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 9e9c3fe40bcd28e3f98f0ad8408435f4503f2781 Mon Sep 17 00:00:00 2001 From: Nadav Amit Date: Sun, 12 Apr 2015 21:47:15 +0300 Subject: KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save From: Nadav Amit commit 9e9c3fe40bcd28e3f98f0ad8408435f4503f2781 upstream. kvm_init_msr_list is currently called before hardware_setup. As a result, vmx_mpx_supported always returns false when kvm_init_msr_list checks whether to save MSR_IA32_BNDCFGS. Move kvm_init_msr_list after vmx_hardware_setup is called to fix this issue. Signed-off-by: Nadav Amit Signed-off-by: Greg Kroah-Hartman Message-Id: <1428864435-4732-1-git-send-email-namit@cs.technion.ac.il> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/x86.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5775,7 +5775,6 @@ int kvm_arch_init(void *opaque) kvm_set_mmio_spte_mask(); kvm_x86_ops = ops; - kvm_init_msr_list(); kvm_mmu_set_mask_ptes(PT_USER_MASK, PT_ACCESSED_MASK, PT_DIRTY_MASK, PT64_NX_MASK, 0); @@ -7209,7 +7208,14 @@ void kvm_arch_hardware_disable(void) int kvm_arch_hardware_setup(void) { - return kvm_x86_ops->hardware_setup(); + int r; + + r = kvm_x86_ops->hardware_setup(); + if (r != 0) + return r; + + kvm_init_msr_list(); + return 0; } void kvm_arch_hardware_unsetup(void) Patches currently in stable-queue which might be from namit@cs.technion.ac.il are queue-4.0/kvm-x86-fix-msr_ia32_bndcfgs-in-msrs_to_save.patch