Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756755Ab3FSNZ3 (ORCPT ); Wed, 19 Jun 2013 09:25:29 -0400 Received: from mail.skyhub.de ([78.46.96.112]:59710 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756427Ab3FSNZ1 (ORCPT ); Wed, 19 Jun 2013 09:25:27 -0400 Date: Wed, 19 Jun 2013 15:25:20 +0200 From: Borislav Petkov To: Ingo Molnar Cc: Linux EFI , Matt Fleming , Matthew Garrett , X86 ML , LKML , Borislav Petkov Subject: Re: [PATCH -v2 0/4] EFI 1:1 mapping Message-ID: <20130619132520.GB28300@pd.tnic> References: <1371491416-11037-1-git-send-email-bp@alien8.de> <20130619125243.GD11209@gmail.com> <20130619130225.GA28311@pd.tnic> <20130619130434.GB24957@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20130619130434.GB24957@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 975 Lines: 31 On Wed, Jun 19, 2013 at 03:04:34PM +0200, Ingo Molnar wrote: > Do we know why? Well, according to mjg59 some Macs break if we don't give them a map which uses high addresses. I can imagine flipping the meaning of this option to be on by default and "efi=no_11_map" to disable the 1:1 map for those Macs. > A bug I suspect? Probably. The problem is, it is very hard to debug the boot stub that early. And of course, I can't reproduce it in qemu :(. If only I had a hardware debugger... > But once it works reliably we can enable it, right? It's all the same to me - I hate EFI with passion so whatever people agree upon, I'll do it. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/