From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753021AbbLRMLp (ORCPT ); Fri, 18 Dec 2015 07:11:45 -0500 Received: from mail-wm0-f41.google.com ([74.125.82.41]:36363 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752126AbbLRMLn (ORCPT ); Fri, 18 Dec 2015 07:11:43 -0500 Date: Fri, 18 Dec 2015 12:11:39 +0000 From: Leif Lindholm To: Mark Rutland Cc: "ard.biesheuvel@linaro.org" , "matt@codeblueprint.co.uk" , "dan.j.williams@intel.com" , "Elliott, Robert (Persistent Memory)" , "Kani, Toshimitsu" , "Knippers, Linda" , "linux-arm-kernel@lists.infradead.org" , "linux-nvdimm@lists.01.org" , "linux-kernel@vger.kernel.org" , "catalin.marinas@arm.com" , "will.deacon@arm.com" , linux-efi@vger.kernel.org Subject: Re: arm64/efi handling of persistent memory Message-ID: <20151218121139.GM25034@bivouac.eciton.net> References: <94D0CD8314A33A4D9D801C0FE68B40295BEBD864@G9W0745.americas.hpqcorp.net> <20151218110651.GL25034@bivouac.eciton.net> <20151218115224.GE29219@leverpostej> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151218115224.GE29219@leverpostej> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 18, 2015 at 11:52:24AM +0000, Mark Rutland wrote: > On Fri, Dec 18, 2015 at 11:06:51AM +0000, Leif Lindholm wrote: > > On Fri, Dec 18, 2015 at 01:33:25AM +0000, Elliott, Robert (Persistent Memory) wrote: > > > Similar to the questions about the arm64 efi boot stub > > > handing persistent memory, some of the arm64 kernel code > > > looks fishy. > > [...] > > > > 2. is_reserve_region() treating EFI_PERSISTENT_MEMORY the same > > > as EFI_CONVENTIONAL_MEMORY looks wrong. > > > > Yeah... That one was introduced by > > ad5fb870c486 ("e820, efi: add ACPI 6.0 persistent memory types") > > without any ACKs from ARM people :/ > > Do we need to do anythign to avoid his kind of thing in future? e.g. a > MAINTAINERS patch for the ARM EFI bits? We've not needed that sort of thing in the past. And running get_maintainer.pl on ad5fb870c486 does yield Catalin, Will, Matt Fleming, you, Ard, me, lakml and linux-efi. > Or do we just need to pay attention to linux-efi? While I am certainly guilty of not watching that closely enough, I can't actually find that patch in my linux-efi history. Or lakml. / Leif