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=-7.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,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 50502C4361B for ; Mon, 14 Dec 2020 15:43:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1DE7D2173E for ; Mon, 14 Dec 2020 15:43:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406208AbgLNPnc (ORCPT ); Mon, 14 Dec 2020 10:43:32 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:36553 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729007AbgLNPnb (ORCPT ); Mon, 14 Dec 2020 10:43:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607960525; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5MqMQKzQOSdZrk041m8eNtC5s8c67cMYU3gn9o6WzOQ=; b=dYKm10ZGzsZaRh42IPxmTJljk6I+e/VyxZSuSQeQD/kDP/wd2+hXiCEvqcZ9ddUpNeyLaG /Ra+SkC6J+QofUMq9uceghRgVUzm90Kl6hB/ox9CpYx69+nYeWFw9z3f08eXuhirxGi5A3 z1MIq9H8VjXGg8QKV9mU9sf2nXiMzbw= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-576-AzGlCtzrPEejEx8IXXmT-w-1; Mon, 14 Dec 2020 10:42:02 -0500 X-MC-Unique: AzGlCtzrPEejEx8IXXmT-w-1 Received: by mail-wr1-f72.google.com with SMTP id w8so6775452wrv.18 for ; Mon, 14 Dec 2020 07:42:02 -0800 (PST) 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:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=5MqMQKzQOSdZrk041m8eNtC5s8c67cMYU3gn9o6WzOQ=; b=QO5wBROKxxI1HD8QKGpZWSzbgZp07V4jESt+cPyD3OzOx8uwLfIgtynPxVqRGPJLdK Kpk/3q3NrmE86FJhl4WdroqNjrsy6/xXTKxaFblCSNqsva6OhucaaUwIyXnDI2VmLXQw 9bx6SS8Xd9XGpzJLcc20CDW0N/goi0lwMDCb9Fxxq9BNMSLuZf2zBVH2i7e+fU0HA2li kmYGwq0hDNIvjnOL5nZwXi3mB30tvvOEONkajo+0l7ttZBMqt6anHXu0SIhQvn70PLxe HSlEUjKgEsrLPdg2MDMkoT0wmwt5N1hf8IASbLGvo1vrQvmvF1uIhcHJd4I/hvzZMWkT zK4w== X-Gm-Message-State: AOAM532/8Dd+be9x5RX609e8xN7bP9HWy6TBxdBXUr8hkIL8M5yCDvdY tetluA8qOXaRQUZ5XSk0Vd855lDn5Uu9+nN/AejxZldCx/+riHv99XNcCqrn3dooYACumen0bqY KK9atSLrBvkbd X-Received: by 2002:a5d:504b:: with SMTP id h11mr29476554wrt.337.1607960521216; Mon, 14 Dec 2020 07:42:01 -0800 (PST) X-Google-Smtp-Source: ABdhPJxyJIp+lTZTT9sR0NCGPoEVoSmk9zQ5BbMRL/noLXCJ1EZncZsE/or2kVQEcH2swnRjb31WKw== X-Received: by 2002:a5d:504b:: with SMTP id h11mr29476538wrt.337.1607960521046; Mon, 14 Dec 2020 07:42:01 -0800 (PST) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id c4sm34435771wrw.72.2020.12.14.07.41.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 14 Dec 2020 07:41:59 -0800 (PST) Subject: Re: [PATCH v5 08/34] KVM: SVM: Prevent debugging under SEV-ES To: Tom Lendacky , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org Cc: Jim Mattson , Joerg Roedel , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Borislav Petkov , Ingo Molnar , Thomas Gleixner , Brijesh Singh References: <8db966fa2f9803d6454ce773863025d0e2e7f3cc.1607620209.git.thomas.lendacky@amd.com> From: Paolo Bonzini Message-ID: Date: Mon, 14 Dec 2020 16:41:58 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <8db966fa2f9803d6454ce773863025d0e2e7f3cc.1607620209.git.thomas.lendacky@amd.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 10/12/20 18:09, Tom Lendacky wrote: > Additionally, an SEV-ES guest must only and always intercept DR7 reads and > writes. Update set_dr_intercepts() and clr_dr_intercepts() to account for > this. I cannot see it, where is this documented? Paolo