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=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no 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 9077BC33C8C for ; Mon, 6 Jan 2020 20:19:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A56C2081E for ; Mon, 6 Jan 2020 20:19:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="i1+dxrn9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727140AbgAFUTY (ORCPT ); Mon, 6 Jan 2020 15:19:24 -0500 Received: from mail-io1-f68.google.com ([209.85.166.68]:41081 "EHLO mail-io1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726751AbgAFUTY (ORCPT ); Mon, 6 Jan 2020 15:19:24 -0500 Received: by mail-io1-f68.google.com with SMTP id c16so46391194ioo.8 for ; Mon, 06 Jan 2020 12:19:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ZB6+nZpdQdrQFOUezOO+7mxpT7FzTcRrUIFGcgCSmbk=; b=i1+dxrn9BwWzBAeJV6afkXOmypBNmAdOB+MN0+uPEwO4tqMBko7kiVkXUabAiq/ryY scWsv83FexYHtha29B/rSOy2G6vr01E7gtVoQV9iKwaqofCJYPXWTm0elmL6mtpLgTho lRpgbEn8HhvfNgnScOhVlIVNFFnXdJsfyixF2JNW4I9eRGti+9UHcwY0+2nLtiZFBhZq NCRVgS4qd+LFAYtEBLVQRHVqJFQP6kgf5nU4jQ5icMM0keUykv268+d69Qtb+UgpH4ur fY/YrpuXoruqx1aEjWp30pWNrcxTpzDDu6MMwnEm860W41k4TzD4Wc+e46dLoHWdcj9x vn5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=ZB6+nZpdQdrQFOUezOO+7mxpT7FzTcRrUIFGcgCSmbk=; b=mKTI+bAobKJUKB1LoyCWkOwS16jCiRH4XhNGSWNmVZotinLM4UFD0dbZthROwpvqfj jW6k00avS2HZL7V8x7Rzk/vAO933VNCKly0v3xraFlavJhdf7aebOzWRI744TALys/eU hQns8JETi22uC7GDOxGlERqVd8nZFgwIKya7YgZx+saQXbj0eIa/Z37/x+cYMABe6zYr OP1Oeacr2Lqrvwuxz2Z3hZU9ZBPlE4/CD65TQNCvMCsPfGtYQFhNh+XDGKoREF9pwlnJ /L7Rkh86n/Slb/hk2bdVh5uMEuJjFLPd3gTrkE07qPH8tiNWkAWCPXxIIywFbsTAqvIT SAWw== X-Gm-Message-State: APjAAAWn5lEEfu+DQ1TrF9KvDCciKUjhaCVOVGOlb8a6Z0d4/CwqMdY9 HXEzwa9Z+S10rajVFWqmZI8FpQpsGkb8OB1tf1LScQ== X-Google-Smtp-Source: APXvYqz1ADI5pUttsTRFE4tG04m0tcxRUNOV6z/qiW+UMBRbGaQW2wU9EW1eJF1Qghs9D9XaNiAgZu7XxW6hZ4ZQb9Y= X-Received: by 2002:a02:cd3b:: with SMTP id h27mr80920656jaq.18.1578341963368; Mon, 06 Jan 2020 12:19:23 -0800 (PST) MIME-Version: 1.0 References: <20191211204753.242298-1-pomonis@google.com> <20191211204753.242298-11-pomonis@google.com> In-Reply-To: <20191211204753.242298-11-pomonis@google.com> From: Jim Mattson Date: Mon, 6 Jan 2020 12:19:12 -0800 Message-ID: Subject: Re: [PATCH v2 10/13] KVM: x86: Protect memory accesses from Spectre-v1/L1TF attacks in x86.c To: Marios Pomonis Cc: Paolo Bonzini , =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Joerg Roedel , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , "the arch/x86 maintainers" , kvm list , LKML , Nick Finco , Andrew Honig , stable@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 11, 2019 at 12:49 PM Marios Pomonis wrote: > > This fixes Spectre-v1/L1TF vulnerabilities in > vmx_read_guest_seg_selector(), vmx_read_guest_seg_base(), > vmx_read_guest_seg_limit() and vmx_read_guest_seg_ar(). > These functions contain index computations based on the > (attacker-influenced) segment value. > > Fixes: commit 2fb92db1ec08 ("KVM: VMX: Cache vmcs segment fields") > > Signed-off-by: Nick Finco > Signed-off-by: Marios Pomonis > Reviewed-by: Andrew Honig > Cc: stable@vger.kernel.org Reviewed-by: Jim Mattson