From patchwork Fri Apr 26 09:15:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 13644456 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 B2D11C4345F for ; Fri, 26 Apr 2024 09:33:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s0Hwt-0004zM-DN; Fri, 26 Apr 2024 05:32:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s0Hwq-0004tW-Iz for qemu-devel@nongnu.org; Fri, 26 Apr 2024 05:32:52 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s0Hwm-0001CT-Np for qemu-devel@nongnu.org; Fri, 26 Apr 2024 05:32:51 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8AxJ+m7dCtm7GUDAA--.1732S3; Fri, 26 Apr 2024 17:32:43 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8BxU1a2dCtm+yUGAA--.2929S4; Fri, 26 Apr 2024 17:32:41 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org, maobibo@loongson.cn Cc: richard.henderson@linaro.org, peter.maydell@linaro.org, philmd@linaro.org, zltjiangshi@gmail.com Subject: [PATCH v7 02/17] hw/loongarch: Add load initrd Date: Fri, 26 Apr 2024 17:15:36 +0800 Message-Id: <20240426091551.2397867-3-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20240426091551.2397867-1-gaosong@loongson.cn> References: <20240426091551.2397867-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8BxU1a2dCtm+yUGAA--.2929S4 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org we load initrd ramdisk after kernel_high address Signed-off-by: Song Gao Reviewed-by: Bibo Mao Message-Id: <20240307164835.300412-3-gaosong@loongson.cn> --- hw/loongarch/boot.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c index 9feed17db3..a9522d6912 100644 --- a/hw/loongarch/boot.c +++ b/hw/loongarch/boot.c @@ -22,7 +22,8 @@ static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr) static int64_t load_kernel_info(struct loongarch_boot_info *info) { - uint64_t kernel_entry, kernel_low, kernel_high; + uint64_t kernel_entry, kernel_low, kernel_high, initrd_size; + ram_addr_t initrd_offset; ssize_t kernel_size; kernel_size = load_elf(info->kernel_filename, NULL, @@ -37,6 +38,32 @@ static int64_t load_kernel_info(struct loongarch_boot_info *info) load_elf_strerror(kernel_size)); exit(1); } + + if (info->initrd_filename) { + initrd_size = get_image_size(info->initrd_filename); + if (initrd_size > 0) { + initrd_offset = ROUND_UP(kernel_high + 4 * kernel_size, 64 * KiB); + + if (initrd_offset + initrd_size > info->ram_size) { + error_report("memory too small for initial ram disk '%s'", + info->initrd_filename); + exit(1); + } + + initrd_size = load_image_targphys(info->initrd_filename, initrd_offset, + info->ram_size - initrd_offset); + } + + if (initrd_size == (target_ulong)-1) { + error_report("could not load initial ram disk '%s'", + info->initrd_filename); + exit(1); + } + } else { + error_report("Need initrd!"); + exit(1); + } + return kernel_entry; }