From patchwork Wed Mar 3 19:12:20 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joerg Roedel X-Patchwork-Id: 83420 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o23JDiBV008230 for ; Wed, 3 Mar 2010 19:13:44 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754637Ab0CCTNN (ORCPT ); Wed, 3 Mar 2010 14:13:13 -0500 Received: from va3ehsobe001.messaging.microsoft.com ([216.32.180.11]:38763 "EHLO VA3EHSOBE001.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754362Ab0CCTNH (ORCPT ); Wed, 3 Mar 2010 14:13:07 -0500 Received: from mail110-va3-R.bigfish.com (10.7.14.244) by VA3EHSOBE001.bigfish.com (10.7.40.21) with Microsoft SMTP Server id 8.1.340.0; Wed, 3 Mar 2010 19:13:04 +0000 Received: from mail110-va3 (localhost [127.0.0.1]) by mail110-va3-R.bigfish.com (Postfix) with ESMTP id 820BEB70491; Wed, 3 Mar 2010 19:13:04 +0000 (UTC) X-SpamScore: -4 X-BigFish: VPS-4(zz936eMab9bhzz1202hzzz32i6bh87h2a8h62h) X-Spam-TCS-SCL: 1:0 X-FB-DOMAIN-IP-MATCH: fail Received: from mail110-va3 (localhost.localdomain [127.0.0.1]) by mail110-va3 (MessageSwitch) id 1267643584213348_14299; Wed, 3 Mar 2010 19:13:04 +0000 (UTC) Received: from VA3EHSMHS006.bigfish.com (unknown [10.7.14.251]) by mail110-va3.bigfish.com (Postfix) with ESMTP id 2F6C6CF004E; Wed, 3 Mar 2010 19:13:04 +0000 (UTC) Received: from ausb3extmailp02.amd.com (163.181.251.22) by VA3EHSMHS006.bigfish.com (10.7.99.16) with Microsoft SMTP Server (TLS) id 14.0.482.39; Wed, 3 Mar 2010 19:12:58 +0000 Received: from ausb3twp01.amd.com (ausb3twp01.amd.com [163.181.250.37]) by ausb3extmailp02.amd.com (Switch-3.2.7/Switch-3.2.7) with SMTP id o23JGIJj003864; Wed, 3 Mar 2010 13:16:21 -0600 X-WSS-ID: 0KYQ01D-01-LMI-02 X-M-MSG: Received: from sausexbh2.amd.com (SAUSEXBH2.amd.com [163.181.22.102]) by ausb3twp01.amd.com (Tumbleweed MailGate 3.7.2) with ESMTP id 2A06D102869A; Wed, 3 Mar 2010 13:12:49 -0600 (CST) Received: from sausexmb1.amd.com ([163.181.3.156]) by sausexbh2.amd.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 3 Mar 2010 13:12:53 -0600 Received: from seurexmb1.amd.com ([165.204.9.130]) by sausexmb1.amd.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 3 Mar 2010 13:12:53 -0600 Received: from lemmy.osrc.amd.com ([165.204.15.93]) by seurexmb1.amd.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 3 Mar 2010 20:12:42 +0100 Received: by lemmy.osrc.amd.com (Postfix, from userid 41430) id E6B89C9B8D; Wed, 3 Mar 2010 20:12:42 +0100 (CET) From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: Alexander Graf , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Joerg Roedel Subject: [PATCH 17/18] KVM: SVM: Report Nested Paging support to userspace Date: Wed, 3 Mar 2010 20:12:20 +0100 Message-ID: <1267643541-451-18-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.0 In-Reply-To: <1267643541-451-1-git-send-email-joerg.roedel@amd.com> References: <1267643541-451-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 03 Mar 2010 19:12:42.0844 (UTC) FILETIME=[7FE539C0:01CABB05] MIME-Version: 1.0 X-Reverse-DNS: ausb3extmailp02.amd.com Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 03 Mar 2010 19:13:44 +0000 (UTC) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index fe1398e..ce71023 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3289,6 +3289,16 @@ static void svm_cpuid_update(struct kvm_vcpu *vcpu) static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) { + switch (func) { + case 0x8000000A: + if (!npt_enabled) + break; + + /* NPT feature is supported by Nested SVM */ + entry->edx = SVM_FEATURE_NPT; + + break; + } } static const struct trace_print_flags svm_exit_reasons_str[] = {