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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01FB2C433FE for ; Fri, 8 Oct 2021 14:49:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D811F60F58 for ; Fri, 8 Oct 2021 14:49:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242996AbhJHOvu (ORCPT ); Fri, 8 Oct 2021 10:51:50 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:24668 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242845AbhJHOva (ORCPT ); Fri, 8 Oct 2021 10:51:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1633704569; 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=yCMj7cGiAu5uMlGEpnkY5Gp+0hj0LFryQP/5PMxjEWw=; b=Ci59J2pB74HcwcExil1md0wOuutbVpdb71QpNrQwRrpxTflDzqavrl0vrxPlk4rhafdzz7 vKQjb620fG8fb4Rlwg4xtHiifgbLjyovJyRL+LQ9Vc9gm73beqv0gQcPNCyr33Trj7NTts ++XoEw5ttqt6Vb8g1kpzTxrpmP/zlu4= 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-270-1hu7g4w8Ne6UZIZ-JY0hqg-1; Fri, 08 Oct 2021 10:49:24 -0400 X-MC-Unique: 1hu7g4w8Ne6UZIZ-JY0hqg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 31E67EC1A6; Fri, 8 Oct 2021 14:49:23 +0000 (UTC) Received: from fuller.cnet (ovpn-112-4.gru2.redhat.com [10.97.112.4]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 409995F4ED; Fri, 8 Oct 2021 14:49:05 +0000 (UTC) Received: by fuller.cnet (Postfix, from userid 1000) id EEC7E425E3F9; Fri, 8 Oct 2021 11:48:13 -0300 (-03) Message-ID: <20211007193526.450327326@fedora.localdomain> User-Agent: quilt/0.66 Date: Thu, 07 Oct 2021 16:23:52 -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 v4 6/8] KVM: x86: call isolation prepare from VM-entry code path References: <20211007192346.731667417@fedora.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 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 @@ -9574,6 +9575,8 @@ 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);