From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752576AbbI3Azx (ORCPT ); Tue, 29 Sep 2015 20:55:53 -0400 Received: from terminus.zytor.com ([198.137.202.10]:49726 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750864AbbI3Azv (ORCPT ); Tue, 29 Sep 2015 20:55:51 -0400 Subject: Re: [PATCH 1/2] x86/efi: Map EFI memmap entries in-order at runtime To: Ingo Molnar , Matthew Garrett References: <20150926055643.GA25877@gmail.com> <0568D1D7-B6AA-437C-ADCE-A86D7A2E4722@zytor.com> <20150926195755.GC3144@codeblueprint.co.uk> <20150927180633.GA29466@srcf.ucam.org> <20150928061646.GA21690@gmail.com> Cc: Andy Lutomirski , Denys Vlasenko , Leif Lindholm , Thomas Gleixner , Borislav Petkov , stable , Andrew Morton , Brian Gerst , Dave Young , "linux-efi@vger.kernel.org" , Ard Biesheuvel , Linus Torvalds , Peter Jones , Matt Fleming , Matt Fleming , Borislav Petkov , "Lee, Chun-Yi" , "linux-kernel@vger.kernel.org" , James Bottomley From: "H. Peter Anvin" Message-ID: <560B32DC.2080704@zytor.com> Date: Tue, 29 Sep 2015 17:54:52 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <20150928061646.GA21690@gmail.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/27/2015 11:16 PM, Ingo Molnar wrote: > > So the question is, what does Windows do? > > PC firmware is a hostile environment for Linux, to be compatible the best we can > do is to mimic the environment that the firmware is tested under - i.e. try to use > the firmware in the way Windows uses it. > Windows apparently went through the same exercise of breakage followed by a fix. It is unknown if Windows will preserve gaps since those are not manifest on existing firmware. -hpa