From mboxrd@z Thu Jan 1 00:00:00 1970 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=-16.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 93F8DC4320A for ; Tue, 24 Aug 2021 15:43:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DEFD61265 for ; Tue, 24 Aug 2021 15:43:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238503AbhHXPnu (ORCPT ); Tue, 24 Aug 2021 11:43:50 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:42236 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238439AbhHXPng (ORCPT ); Tue, 24 Aug 2021 11:43:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1629819772; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=5GBmI2eLHGG6ZdSAuDUji80HERG9HLQ6xks6WVJU3Gw=; b=GzjuzlZ7KKgyep0qtM3IR14z1j57m76XVB2+IDb0cXE7puMOrtDNLj/77HlVms1cpbtfhe F/2CKyqClOxhlkgBv5nYzESLfxXciZBcsdlDY7LzA2DAIju5OG4mUEc7L3NefR+cXghQhX eNROGsiqaCKq/FRkc08s0imKdUrTiQI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-426-w4w1SXBdOwyeQP0gf39onA-1; Tue, 24 Aug 2021 11:42:51 -0400 X-MC-Unique: w4w1SXBdOwyeQP0gf39onA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E46B2760DB; Tue, 24 Aug 2021 15:42:49 +0000 (UTC) Received: from fuller.cnet (ovpn-112-5.gru2.redhat.com [10.97.112.5]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E652C4EF67; Tue, 24 Aug 2021 15:42:38 +0000 (UTC) Received: by fuller.cnet (Postfix, from userid 1000) id 1E1574175283; Tue, 24 Aug 2021 12:42:15 -0300 (-03) Message-ID: <20210824152646.859859224@fuller.cnet> User-Agent: quilt/0.66 Date: Tue, 24 Aug 2021 12:24:29 -0300 From: Marcelo Tosatti To: linux-kernel@vger.kernel.org Cc: Nitesh Lal , Nicolas Saenz Julienne , Frederic Weisbecker , Christoph Lameter , Juri Lelli , Peter Zijlstra , Alex Belits , Peter Xu , Marcelo Tosatti Subject: [patch V3 6/8] KVM: x86: call isolation prepare from VM-entry code path References: <20210824152423.300346181@fuller.cnet> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org VM-entry code path is an entry point similar to userspace return when task isolation is concerned. Call isolation_exit_to_user_mode_prepare before VM-enter. Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/x86.c | 3 +++ 1 file changed, 3 insertions(+) Index: linux-2.6/arch/x86/kvm/x86.c =================================================================== --- linux-2.6.orig/arch/x86/kvm/x86.c +++ linux-2.6/arch/x86/kvm/x86.c @@ -59,6 +59,7 @@ #include #include #include +#include #include @@ -9539,6 +9540,8 @@ static int vcpu_enter_guest(struct kvm_v goto cancel_injection; } + isolation_exit_to_user_mode_prepare(); + preempt_disable(); static_call(kvm_x86_prepare_guest_switch)(vcpu);