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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EF525C87FD2 for ; Mon, 11 Aug 2025 09:31:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ay2HjELoUY2f+Lvw6Jk7gXFUv5V3GMr7KyOEd8INP/s=; b=LVoEauWZQEQt1+iWl5erLWCMun zOaUzWNk00TQi4YhFjccLX4Q5gCJqzKu94vzgfnBzbAmjQcWzEd+9MCUbubHo0nLR5C2rq2qEIDCs 3drMHEqVBCnZc17HGdYlS8MYbMgA/CDM72D1a2nT6Ajp0eUqYWfIgHuIMdMXLXvyUp9e7yCQP2zRy 4XBz0hFV5wAv7mkAjA3MkqVJjegrFQIHw7KwPVVpDJAhCUxur/p8jhp85GjgjXPEQVrP7/Yl90SpB 4RHO7NIfcLEmKd5NNBzkkto3dzJ25cNpkvyZr+LfVYxMtbSOkpcyYuH/OB+0+HspaA1wiSviHPavJ RRcFEBwg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ulOsM-000000078D0-2HvD; Mon, 11 Aug 2025 09:31:30 +0000 Received: from out-186.mta1.migadu.com ([95.215.58.186]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ulOrM-000000076ln-2H8o for kexec@lists.infradead.org; Mon, 11 Aug 2025 09:30:29 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1754904494; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ay2HjELoUY2f+Lvw6Jk7gXFUv5V3GMr7KyOEd8INP/s=; b=iwHr+l1GjqYzJBIDiU/EtR6gaj5mnbSkZb+DUuVMGbAC4ykqjZRG8giIMqL6Lo0ZDANCp4 boHzs77PN7yMTQNGFOzHpoifU57oXWl6XL6oSC10gj/wfDkYuz6Ncgvjt2iqmRSZYeTUGk Pu+vYuk2JotzHaLID9kZqRqdZMOAGT4= From: Youling Tang To: Huacai Chen Cc: WANG Xuerui , Baoquan He , kexec@lists.infradead.org, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, youling.tang@linux.dev, Youling Tang Subject: [PATCH 1/6] LoongArch: Add struct loongarch_image_header for kernel image Date: Mon, 11 Aug 2025 17:26:54 +0800 Message-Id: <20250811092659.14903-2-youling.tang@linux.dev> In-Reply-To: <20250811092659.14903-1-youling.tang@linux.dev> References: <20250811092659.14903-1-youling.tang@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250811_023028_736656_A77EBF04 X-CRM114-Status: GOOD ( 10.40 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org From: Youling Tang Define a dedicated image header structure for LoongArch architecture to standardize kernel loading in bootloaders (primarily for kexec_file). This header includes critical metadata such as PE signature, entry points, image size and load address offset, etc. Signed-off-by: Youling Tang --- arch/loongarch/include/asm/image.h | 40 ++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 arch/loongarch/include/asm/image.h diff --git a/arch/loongarch/include/asm/image.h b/arch/loongarch/include/asm/image.h new file mode 100644 index 000000000000..1f090736e71d --- /dev/null +++ b/arch/loongarch/include/asm/image.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * LoongArch binary image header. + * + * Author: Youling Tang + * Copyright (C) 2025 KylinSoft Corporation. + * + * Most code is derived from LoongArch port of kexec-tools + */ + +#ifndef __ASM_IMAGE_H +#define __ASM_IMAGE_H +#ifndef __ASSEMBLY__ + +/** + * struct loongarch_image_header + * + * @pe_sig: Optional PE format 'MZ' signature. + * @reserved_1: Reserved. + * @kernel_entry: Kernel image entry pointer. + * @image_size: An estimated size of the memory image size in LSB byte order. + * @text_offset: The image load offset in LSB byte order. + * @reserved_2: Reserved. + * @reserved_3: Reserved. + * @pe_header: Optional offset to a PE format header. + **/ + +struct loongarch_image_header { + uint8_t pe_sig[2]; + uint16_t reserved_1[3]; + uint64_t kernel_entry; + uint64_t image_size; + uint64_t text_offset; + uint64_t reserved_2[3]; + uint32_t reserved_3; + uint32_t pe_header; +}; + +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_IMAGE_H */ -- 2.34.1