From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752513Ab0HBOpL (ORCPT ); Mon, 2 Aug 2010 10:45:11 -0400 Received: from va3ehsobe003.messaging.microsoft.com ([216.32.180.13]:54018 "EHLO VA3EHSOBE003.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751284Ab0HBOpJ (ORCPT ); Mon, 2 Aug 2010 10:45:09 -0400 X-SpamScore: 1 X-BigFish: VS1(zzzz1202hzzz32i87h2a8h) X-FB-SS: 13, X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0L6J4WX-02-4IW-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: , , Joerg Roedel Subject: [PATCH 2/2] KVM: SVM: Check for asid != 0 on nested vmrun Date: Mon, 2 Aug 2010 16:46:45 +0200 Message-ID: <1280760405-22591-3-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1280760405-22591-1-git-send-email-joerg.roedel@amd.com> References: <1280760405-22591-1-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 lets a nested vmrun fail if the L1 hypervisor left the asid zero. This fixes the asid_zero unit test. Signed-off-by: Joerg Roedel --- arch/x86/kvm/svm.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 083fa88..7a2feb9 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2020,6 +2020,9 @@ static bool nested_vmcb_checks(struct vmcb *vmcb) if ((vmcb->control.intercept & (1ULL << INTERCEPT_VMRUN)) == 0) return false; + if (vmcb->control.asid == 0) + return false; + return true; } -- 1.7.0.4