Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161079AbaGRNPT (ORCPT ); Fri, 18 Jul 2014 09:15:19 -0400 Received: from bband-dyn38.178-41-141.t-com.sk ([178.41.141.38]:17793 "EHLO ip4-83-240-18-248.cust.nbox.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S965796AbaGRNPE (ORCPT ); Fri, 18 Jul 2014 09:15:04 -0400 From: Jiri Slaby To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Paolo Bonzini , Jiri Slaby Subject: [PATCH 3.12 112/170] KVM: x86: preserve the high 32-bits of the PAT register Date: Fri, 18 Jul 2014 14:11:57 +0200 Message-Id: X-Mailer: git-send-email 2.0.0 In-Reply-To: <48e8cad86bb1241c08bdaa80db022c25068ff8e0.1405685481.git.jslaby@suse.cz> References: <48e8cad86bb1241c08bdaa80db022c25068ff8e0.1405685481.git.jslaby@suse.cz> In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Paolo Bonzini 3.12-stable review patch. If anyone has any objections, please let me know. =============== 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: Jiri Slaby --- 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 792206c8e555..694851592399 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -455,7 +455,7 @@ 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]; -- 2.0.0 -- 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/