Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752594AbbLRLwl (ORCPT ); Fri, 18 Dec 2015 06:52:41 -0500 Received: from foss.arm.com ([217.140.101.70]:39534 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751926AbbLRLwk (ORCPT ); Fri, 18 Dec 2015 06:52:40 -0500 Date: Fri, 18 Dec 2015 11:52:24 +0000 From: Mark Rutland To: Leif Lindholm , "ard.biesheuvel@linaro.org" , "matt@codeblueprint.co.uk" , "dan.j.williams@intel.com" Cc: "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" Subject: Re: arm64/efi handling of persistent memory Message-ID: <20151218115224.GE29219@leverpostej> References: <94D0CD8314A33A4D9D801C0FE68B40295BEBD864@G9W0745.americas.hpqcorp.net> <20151218110651.GL25034@bivouac.eciton.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151218110651.GL25034@bivouac.eciton.net> 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: 967 Lines: 26 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? Or do we just need to pay attention to linux-efi? Mark. -- 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/