From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1379C6778C for ; Tue, 3 Jul 2018 16:34:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 61E052064D for ; Tue, 3 Jul 2018 16:34:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 61E052064D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933971AbeGCQel (ORCPT ); Tue, 3 Jul 2018 12:34:41 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:52436 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932392AbeGCQek (ORCPT ); Tue, 3 Jul 2018 12:34:40 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4CF567A9; Tue, 3 Jul 2018 09:34:40 -0700 (PDT) Received: from [10.1.206.34] (melchizedek.cambridge.arm.com [10.1.206.34]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A2EFB3F5BA; Tue, 3 Jul 2018 09:34:36 -0700 (PDT) Subject: Re: [PATCH v10 05/14] arm64: add image head flag definitions To: AKASHI Takahiro Cc: catalin.marinas@arm.com, will.deacon@arm.com, dhowells@redhat.com, vgoyal@redhat.com, herbert@gondor.apana.org.au, davem@davemloft.net, dyoung@redhat.com, bhe@redhat.com, arnd@arndb.de, ard.biesheuvel@linaro.org, bhsharma@redhat.com, kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20180623022058.10935-1-takahiro.akashi@linaro.org> <20180623022058.10935-6-takahiro.akashi@linaro.org> From: James Morse Message-ID: <15a8c694-ea85-8d9f-7498-62995f46ca1a@arm.com> Date: Tue, 3 Jul 2018 17:34:34 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <20180623022058.10935-6-takahiro.akashi@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Akashi, On 23/06/18 03:20, AKASHI Takahiro wrote: > Those image head's flags will be used later by kexec_file loader. > diff --git a/arch/arm64/include/asm/boot.h b/arch/arm64/include/asm/boot.h > index 355e552a9175..0bab7eed3012 100644 > --- a/arch/arm64/include/asm/boot.h > +++ b/arch/arm64/include/asm/boot.h > @@ -5,6 +5,21 @@ > > #include > > +#define ARM64_MAGIC "ARM\x64" > + > +#define HEAD_FLAG_BE_SHIFT 0 > +#define HEAD_FLAG_PAGE_SIZE_SHIFT 1 > +#define HEAD_FLAG_BE_MASK 0x1 > +#define HEAD_FLAG_PAGE_SIZE_MASK 0x3 > + > +#define HEAD_FLAG_BE 1 > +#define HEAD_FLAG_PAGE_SIZE_4K 1 > +#define HEAD_FLAG_PAGE_SIZE_16K 2 > +#define HEAD_FLAG_PAGE_SIZE_64K 3 These match the linker-script-header kernel/image.h. Generating one from the other is something we can do later. Acked-by: James Morse Thanks, James