From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754885Ab0IFPD0 (ORCPT ); Mon, 6 Sep 2010 11:03:26 -0400 Received: from tx2ehsobe003.messaging.microsoft.com ([65.55.88.13]:45917 "EHLO TX2EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754301Ab0IFPCs (ORCPT ); Mon, 6 Sep 2010 11:02:48 -0400 X-SpamScore: 1 X-BigFish: VS1(zzzz1202hzz8275bhz32i2a8h87h43h61h) X-Spam-TCS-SCL: 0:0 X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0L8BZ2Q-02-4X2-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: <"http://kvm.qumranet.com"@osrc.amd.com>, , Joerg Roedel Subject: [PATCH 27/27] KVM: SVM: Report Nested Paging support to userspace Date: Mon, 6 Sep 2010 17:02:02 +0200 Message-ID: <1283785322-26898-28-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1283785322-26898-1-git-send-email-joerg.roedel@amd.com> References: <1283785322-26898-1-git-send-email-joerg.roedel@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-Reverse-DNS: unknown Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch implements the reporting of the nested paging feature support to userspace. Signed-off-by: Joerg Roedel --- arch/x86/kvm/svm.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 932183e..dd6c529 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3478,6 +3478,10 @@ static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) if (svm_has(SVM_FEATURE_NRIP)) entry->edx |= SVM_FEATURE_NRIP; + /* Support NPT for the guest if enabled */ + if (npt_enabled) + entry->edx |= SVM_FEATURE_NPT; + break; } } -- 1.7.0.4