From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935306AbeBPLIb (ORCPT ); Fri, 16 Feb 2018 06:08:31 -0500 Received: from mail.skyhub.de ([5.9.137.197]:49260 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935119AbeBPLI2 (ORCPT ); Fri, 16 Feb 2018 06:08:28 -0500 Date: Fri, 16 Feb 2018 12:08:21 +0100 From: Borislav Petkov To: Ard Biesheuvel Cc: Joe Konno , Matthew Garrett , Ingo Molnar , Andy Lutomirski , linux-efi@vger.kernel.org, Linux Kernel Mailing List , Jeremy Kerr , Andi Kleen , Tony Luck , Benjamin Drung , Peter Jones Subject: Re: [PATCH 0/2] efivars: reading variables can generate SMIs Message-ID: <20180216110821.GB29042@pd.tnic> References: <20180215182208.35003-1-joe.konno@linux.intel.com> <20180216105548.GA29042@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.3 (2018-01-21) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 16, 2018 at 10:58:47AM +0000, Ard Biesheuvel wrote: > By your own reasoning above, that's a no-no as well. I'm sure we can come up with some emulation - the same way we did the BIOS emulation. > But thanks for your input. Anyone else got something constructive to contribute? The not-breaking userspace is constructive contribution. The last paragraph is my usual rant. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.