From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754535Ab0IJPcl (ORCPT ); Fri, 10 Sep 2010 11:32:41 -0400 Received: from tx2ehsobe003.messaging.microsoft.com ([65.55.88.13]:35420 "EHLO TX2EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753114Ab0IJPci (ORCPT ); Fri, 10 Sep 2010 11:32:38 -0400 X-SpamScore: 1 X-BigFish: VS1(zzzz1202hzz8275bhz32i2a8h87h61h) X-Spam-TCS-SCL: 0:0 X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0L8JF43-01-7OX-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: , , Joerg Roedel Subject: [PATCH 28/29] KVM: SVM: Report Nested Paging support to userspace Date: Fri, 10 Sep 2010 17:31:05 +0200 Message-ID: <1284132667-18620-29-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1284132667-18620-1-git-send-email-joerg.roedel@amd.com> References: <1284132667-18620-1-git-send-email-joerg.roedel@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-Reverse-DNS: ausb3extmailp02.amd.com 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 ede95e0..678602e 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3476,6 +3476,10 @@ 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