Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ADA36C433DF for ; Tue, 30 Jun 2020 09:48:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 887A120774 for ; Tue, 30 Jun 2020 09:48:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732137AbgF3Js0 (ORCPT ); Tue, 30 Jun 2020 05:48:26 -0400 Received: from ex13-edg-ou-002.vmware.com ([208.91.0.190]:21770 "EHLO EX13-EDG-OU-002.vmware.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732078AbgF3JsW (ORCPT ); Tue, 30 Jun 2020 05:48:22 -0400 Received: from sc9-mailhost2.vmware.com (10.113.161.72) by EX13-EDG-OU-002.vmware.com (10.113.208.156) with Microsoft SMTP Server id 15.0.1156.6; Tue, 30 Jun 2020 02:48:19 -0700 Received: from sc2-haas01-esx0118.eng.vmware.com (sc2-haas01-esx0118.eng.vmware.com [10.172.44.118]) by sc9-mailhost2.vmware.com (Postfix) with ESMTP id 2517FB211F; Tue, 30 Jun 2020 05:48:20 -0400 (EDT) From: Nadav Amit To: Paolo Bonzini CC: , Nadav Amit Subject: [kvm-unit-tests PATCH 3/5] x86: svm: flush TLB on each test Date: Tue, 30 Jun 2020 02:45:14 -0700 Message-ID: <20200630094516.22983-4-namit@vmware.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200630094516.22983-1-namit@vmware.com> References: <20200630094516.22983-1-namit@vmware.com> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: None (EX13-EDG-OU-002.vmware.com: namit@vmware.com does not designate permitted sender hosts) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Several svm tests change PTEs but do not flush the TLB. To avoid messing around or encountering new bugs in the future, flush the TLB on every test. Signed-off-by: Nadav Amit --- x86/svm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/x86/svm.c b/x86/svm.c index f35c063..0fcad8d 100644 --- a/x86/svm.c +++ b/x86/svm.c @@ -170,6 +170,7 @@ void vmcb_ident(struct vmcb *vmcb) if (npt_supported()) { ctrl->nested_ctl = 1; ctrl->nested_cr3 = (u64)pml4e; + ctrl->tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID; } } -- 2.25.1