Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934905AbaGXKPr (ORCPT ); Thu, 24 Jul 2014 06:15:47 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:54827 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934449AbaGXJrk (ORCPT ); Thu, 24 Jul 2014 05:47:40 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Paolo Bonzini , Luis Henriques Subject: [PATCH 3.11 053/128] KVM: x86: preserve the high 32-bits of the PAT register Date: Thu, 24 Jul 2014 10:45:02 +0100 Message-Id: <1406195177-8656-54-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1406195177-8656-1-git-send-email-luis.henriques@canonical.com> References: <1406195177-8656-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.11 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.11.10.14 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Paolo Bonzini commit 7cb060a91c0efc5ff94f83c6df3ed705e143cdb9 upstream. KVM does not really do much with the PAT, so this went unnoticed for a long time. It is exposed however if you try to do rdmsr on the PAT register. Reported-by: Valentine Sinitsyn Signed-off-by: Paolo Bonzini Signed-off-by: Luis Henriques --- arch/x86/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index ec71e13240b9..e2986788dc6b 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -453,7 +453,7 @@ struct kvm_vcpu_arch { bool nmi_injected; /* Trying to inject an NMI this entry */ struct mtrr_state_type mtrr_state; - u32 pat; + u64 pat; int switch_db_regs; unsigned long db[KVM_NR_DB_REGS]; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/