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=-8.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,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 6E3ADC433DF for ; Tue, 13 Oct 2020 08:34:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D96A5207C3 for ; Tue, 13 Oct 2020 08:34:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="G9vZ9fVL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403872AbgJMIeK (ORCPT ); Tue, 13 Oct 2020 04:34:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390540AbgJMIeJ (ORCPT ); Tue, 13 Oct 2020 04:34:09 -0400 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A918C0613D0 for ; Tue, 13 Oct 2020 01:34:09 -0700 (PDT) Received: from zn.tnic (p200300ec2f0ecc00b688821b0a181b84.dip0.t-ipconnect.de [IPv6:2003:ec:2f0e:cc00:b688:821b:a18:1b84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id AE8A41EC0266; Tue, 13 Oct 2020 10:34:07 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1602578047; 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:in-reply-to:in-reply-to: references:references; bh=qIMkzQUnWuHLeAaIIT8VKeYzvlpHwBquaWrTGZd623o=; b=G9vZ9fVLTUcepYGcX7uvO+ojsvTkcyGmZm2ARXnEBEy1lAvcwHPL57rziyJlzEtBYv3J2I feD1lHj9zxtJy5sNdX1PdRol1U30gVGUzOGrLilC52TgxhP2MM/w1Dv0xMLnPY8kfBukLH kJOExQfAJ6IlVbhHbBmDbf2oxmdGZrU= Date: Tue, 13 Oct 2020 10:33:58 +0200 From: Borislav Petkov To: "Kirill A. Shutemov" Cc: Arvind Sankar , x86@kernel.org, Joerg Roedel , linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86/boot/64: Initialize 5-level paging variables earlier Message-ID: <20201013083358.GB28215@zn.tnic> References: <20201008191623.2881677-1-nivedita@alum.mit.edu> <20201010191110.4060905-1-nivedita@alum.mit.edu> <20201010192624.GA4062867@rani.riverdale.lan> <20201012140830.vrc25x2gwo7yo4kn@black.fi.intel.com> <20201012153501.GA559681@rani.riverdale.lan> <20201013081117.GA28215@zn.tnic> <20201013082047.ifigo5hua2qdrv75@black.fi.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20201013082047.ifigo5hua2qdrv75@black.fi.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 13, 2020 at 11:20:47AM +0300, Kirill A. Shutemov wrote: > With TCG or KVM? I use -machine "type=q35,accel=tcg". Thx, that triggered it - it was KVM before. Btw, are 5level boxes shipping already or not yet? Because I've not seen one yet. If you have access to the hw, I'd appreciate it if you could test Arvind's patch ontop of https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=x86/seves which does that early pagetable rework. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette