From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759449AbdKPLka (ORCPT ); Thu, 16 Nov 2017 06:40:30 -0500 Received: from mail.skyhub.de ([5.9.137.197]:48962 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757481AbdKPLkX (ORCPT ); Thu, 16 Nov 2017 06:40:23 -0500 Date: Thu, 16 Nov 2017 12:40:12 +0100 From: Borislav Petkov To: Tom Lendacky , "H. Peter Anvin" Cc: x86@kernel.org, Peter Zijlstra , linux-kernel@vger.kernel.org, Ingo Molnar , Thomas Gleixner , Tomeu Vizoso Subject: Re: [PATCH] x86/boot: Fix boot failure when SMP MP-table is based at 0 Message-ID: <20171116114012.dmjncbeocsy4assk@pd.tnic> References: <20171106201753.23059.86674.stgit@tlendack-t1.amdoffice.net> <17a1c480-d0aa-b272-7ca3-5dd2cf2fd7dc@amd.com> <669af46f-4dfb-cd1e-8639-9d94d28aec74@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <669af46f-4dfb-cd1e-8639-9d94d28aec74@amd.com> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 06, 2017 at 05:00:31PM -0600, Tom Lendacky wrote: > Btw, it was working before because instead of saving off the physical > address as 5997efb96756 now does, it saved off a virtual address that > pointed to physical address 0 (0xffff880000000000) and used that in the > conditional. Dunno, should we support any braindead vm implementation which puts stuff in the low megabyte? I mean, the fix is simple enough and we probably don't care all that much whatever potent sh*t people are smoking as long as it is all the same to the kernel... IMO. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.