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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 2D460C433FF for ; Tue, 13 Aug 2019 08:13:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0C1B820663 for ; Tue, 13 Aug 2019 08:13:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727969AbfHMINA (ORCPT ); Tue, 13 Aug 2019 04:13:00 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:36548 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727948AbfHMIM7 (ORCPT ); Tue, 13 Aug 2019 04:12:59 -0400 Received: by mail-wr1-f68.google.com with SMTP id r3so13151946wrt.3 for ; Tue, 13 Aug 2019 01:12:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:openpgp:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=C4MCH+wiKyoHDLRZTqdi1HE4ZG69Yx/Z30XMFS1Md78=; b=oGAergk5AHotFlUrxTobYScSw+/F2hDruHMV073tsrHSEdUzVDFilTuBTpj/6wUwrM yL3iwJ0diwDLoJAcFO009y3gAgnqVh1mY9fyekpkQ9CbfLtl4pTVCKWSnDxgBO1hajQ7 EdSGtsfGB9abjglkA2AyQfq/PmFLz486Y2F9MfqQGU7//K6BeJU/82VMUIY4okTNZtve uGHPgGOX3dDjWxUQvb0F5nqDvq0nTHk0gBECDLUKGOBdH5gP+AH+LAEmREEb2ISJUC/Z x7rtN/HYiYbNxUmqigQy3hBrVZxcrPC9KfxCyquPhprVddGo+el/7Oj2MxhwayK+YHlI WXrQ== X-Gm-Message-State: APjAAAXGaItKSNffVRCbESxDGlYaFVRt3XELLb9mqHSyHu8B3aaVrQph wZGY1WCyvCvh3QtrSEB8LiTc2w== X-Google-Smtp-Source: APXvYqzTGkTsXHr6zZizzD6ULkYclIovnz3N2V8vDYZOluWG0ibcVz+1hwoKcaSTeMWJVha1MYq4yw== X-Received: by 2002:adf:c613:: with SMTP id n19mr44936601wrg.109.1565683977128; Tue, 13 Aug 2019 01:12:57 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:5d12:7fa9:fb2d:7edb? ([2001:b07:6468:f312:5d12:7fa9:fb2d:7edb]) by smtp.gmail.com with ESMTPSA id a8sm826262wma.31.2019.08.13.01.12.55 (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Tue, 13 Aug 2019 01:12:56 -0700 (PDT) Subject: Re: [RFC PATCH v6 26/92] kvm: x86: add kvm_mmu_nested_pagefault() To: =?UTF-8?Q?Adalbert_Laz=c4=83r?= , kvm@vger.kernel.org Cc: linux-mm@kvack.org, virtualization@lists.linux-foundation.org, =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= , Konrad Rzeszutek Wilk , Tamas K Lengyel , Mathieu Tarral , =?UTF-8?Q?Samuel_Laur=c3=a9n?= , Patrick Colp , Jan Kiszka , Stefan Hajnoczi , Weijiang Yang , Yu C Zhang , =?UTF-8?Q?Mihai_Don=c8=9bu?= , =?UTF-8?B?TmljdciZb3IgQ8OuyJt1?= References: <20190809160047.8319-1-alazar@bitdefender.com> <20190809160047.8319-27-alazar@bitdefender.com> From: Paolo Bonzini Openpgp: preference=signencrypt Message-ID: Date: Tue, 13 Aug 2019 10:12:54 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190809160047.8319-27-alazar@bitdefender.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 09/08/19 17:59, Adalbert Lazăr wrote: > +static bool vmx_nested_pagefault(struct kvm_vcpu *vcpu) > +{ > + if (vcpu->arch.exit_qualification & EPT_VIOLATION_GVA_TRANSLATED) > + return false; > + return true; > +} > + This hook is misnamed; it has nothing to do with nested virtualization. Rather, it returns true if it the failure happened while translating the address of a guest page table. SVM makes the same information available in EXITINFO[33]. Paolo