From patchwork Thu Mar 7 16:48:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Song Gao X-Patchwork-Id: 1909384 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4TrFhc3CHqz20Qg for ; Fri, 8 Mar 2024 03:52:16 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1riGvK-0007B4-0H; Thu, 07 Mar 2024 11:48:50 -0500 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 1riGvH-00079E-Ve for qemu-devel@nongnu.org; Thu, 07 Mar 2024 11:48:48 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1riGvC-0002V3-7h for qemu-devel@nongnu.org; Thu, 07 Mar 2024 11:48:45 -0500 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Axjuvl7+llDAEWAA--.53816S3; Fri, 08 Mar 2024 00:48:37 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8BxnhPj7+llNmpQAA--.27604S4; Fri, 08 Mar 2024 00:48:37 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, maobibo@loongson.cn Subject: [PATCH v6 02/17] hw/loongarch: Add load initrd Date: Fri, 8 Mar 2024 00:48:20 +0800 Message-Id: <20240307164835.300412-3-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20240307164835.300412-1-gaosong@loongson.cn> References: <20240307164835.300412-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8BxnhPj7+llNmpQAA--.27604S4 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, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org we load initrd ramdisk after kernel_high address Signed-off-by: Song Gao Message-Id: <20240301093839.663947-3-gaosong@loongson.cn> Reviewed-by: Bibo Mao --- 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 a8a725a0a8..149deb2e01 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; }