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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 3D032C433DB for ; Thu, 11 Mar 2021 21:37:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E89EA64F8E for ; Thu, 11 Mar 2021 21:37:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230510AbhCKVgf (ORCPT ); Thu, 11 Mar 2021 16:36:35 -0500 Received: from mail.skyhub.de ([5.9.137.197]:32908 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230386AbhCKVgF (ORCPT ); Thu, 11 Mar 2021 16:36:05 -0500 Received: from zn.tnic (p200300ec2f0e1f00f0a77a9e991aa23f.dip0.t-ipconnect.de [IPv6:2003:ec:2f0e:1f00:f0a7:7a9e:991a:a23f]) (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 5881D1EC0242; Thu, 11 Mar 2021 22:36:04 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1615498564; 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=vnZJA6bwJwMv01XB1ZyoXIa36BjZyTIdjNPd4yfcLT8=; b=Qsr1w0kwmjO1dpdQLr+FTbdPgambIX9k3iIcVJddRq0KLv/ieI+nG9ahQNkQ5CGJFDUEjz XRvT56w34NI4QpANIziElbJ0mVh7pHn8ZyF7Fk+lOQzZCY72OQ/EvuqpN5UYRpn6GOvC8K 5024rJ6A1njuPQARe+H93qkklfdM6SQ= Date: Thu, 11 Mar 2021 22:36:00 +0100 From: Borislav Petkov To: Jim Mattson Cc: Babu Moger , Paolo Bonzini , Vitaly Kuznetsov , Wanpeng Li , kvm list , Joerg Roedel , the arch/x86 maintainers , LKML , Ingo Molnar , "H . Peter Anvin" , Thomas Gleixner , Makarand Sonare , Sean Christopherson Subject: Re: [PATCH v6 00/12] SVM cleanup and INVPCID feature support Message-ID: <20210311213600.GG5829@zn.tnic> References: <0ebda5c6-097e-20bb-d695-f444761fbb79@amd.com> <0d8f6573-f7f6-d355-966a-9086a00ef56c@amd.com> <1451b13e-c67f-8948-64ff-5c01cfb47ea7@redhat.com> <3929a987-5d09-6a0c-5131-ff6ffe2ae425@amd.com> <7a7428f4-26b3-f704-d00b-16bcf399fd1b@amd.com> <78cc2dc7-a2ee-35ac-dd47-8f3f8b62f261@redhat.com> <20210311200755.GE5829@zn.tnic> <20210311203206.GF5829@zn.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 11, 2021 at 01:23:47PM -0800, Jim Mattson wrote: > I would expect kaiser_enabled to be false (and PCIDs not to be used), > since AMD CPUs are not vulnerable to Meltdown. Ah, of course. The guest dmesg should have "Kernel/User page tables isolation: disabled." Lemme see if I can reproduce. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette