From patchwork Thu Feb 10 06:30:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stafford Horne X-Patchwork-Id: 12741414 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 BFC14C433F5 for ; Thu, 10 Feb 2022 06:35:30 +0000 (UTC) Received: from localhost ([::1]:38574 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nI33B-0007Sy-CM for qemu-devel@archiver.kernel.org; Thu, 10 Feb 2022 01:35:29 -0500 Received: from eggs.gnu.org ([209.51.188.92]:51508) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nI2yj-00049U-Fu for qemu-devel@nongnu.org; Thu, 10 Feb 2022 01:30:55 -0500 Received: from [2607:f8b0:4864:20::1030] (port=33845 helo=mail-pj1-x1030.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nI2yg-0005Bi-Ds for qemu-devel@nongnu.org; Thu, 10 Feb 2022 01:30:53 -0500 Received: by mail-pj1-x1030.google.com with SMTP id ki18-20020a17090ae91200b001b8be87e9abso1164934pjb.1 for ; Wed, 09 Feb 2022 22:30:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=hA2LCga9fxXPPeWzfbk2k22i6rRvao14Hx9VLSmSXLA=; b=Ys9IMwo8rRKMjsqFORO2o/N5Ed7DhWpJG1BeEgVZUGCZw+zCAXfq+yXWxSyzEwd0FM y7SFmu3kjoj6qHeJYuUrupPTDqWDqG1jPyRnXAxMnFbRenPlvLAMCSeYybv361MAkgyl IvL0+S2ZiL8h9OctuLkmPF5jT+sSFBUTab9iZlYVK12FqwWfv/ui0PTzjaVQquP1gEN/ C+4BPx2gFk+0sMZ4gNepRyNy/1qisv0Z+ILfsrPdRmOgqMkWr37ucgdiYjbCBoEIu7xW O4cW1FErT2z71uPwhmgkgwOrFh8QvdlUAWzlMzcqDI79I6pvUkGiB2nB5TYMIHYASJrS PMCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=hA2LCga9fxXPPeWzfbk2k22i6rRvao14Hx9VLSmSXLA=; b=iqXP/XgLBJbQfZ+lcyro6115t9u1fKMRySZmy5/6Hegl3f69xolfGosTMjLGnAWujT 8+Ix32cojzl+0bqzAyuUol2QhYvL32+QoWp4uPiGjT3fh0hu05AQsedCX4R8ataPkGFz 77A3Sas1YpWedz66VDs8ImO+Ho5FAbJxYXSzIp1f3dLXk61uemApRShKsXE2+IPINjjX ajYLQaz02lAhL/baxKscWfZehko2xsEmUpD0zfo+Y0HtPHPYyU9IRXruUXr0QWc16ezI yyiX7ylPgp2oXgghQaiIJCYN8re3k7iPgpTYO7JDimZxQ5iuEpb5jYBPuTCHeedWfMxE 1q8Q== X-Gm-Message-State: AOAM531X0uCrd1pNmLq7CBPTY/No0S9X3QEW6bGiG6TJuCLu805TalFT gdInLhAWXlbA4vvfLIky2cw5qB65woW7MA== X-Google-Smtp-Source: ABdhPJz80Pgj4HzBDiZPcDgQXntAv+sT0ZcbEd9FXk/8oIA2cGYRZ71n6f1uUGltTj4Oga66sXyM1w== X-Received: by 2002:a17:903:124e:: with SMTP id u14mr5962134plh.57.1644474639687; Wed, 09 Feb 2022 22:30:39 -0800 (PST) Received: from localhost ([2409:10:24a0:4700:e8ad:216a:2a9d:6d0c]) by smtp.gmail.com with ESMTPSA id mn7sm928873pjb.8.2022.02.09.22.30.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Feb 2022 22:30:39 -0800 (PST) From: Stafford Horne To: QEMU Development Subject: [PATCH 4/4] hw/openrisc/openrisc_sim: Add support for initrd loading Date: Thu, 10 Feb 2022 15:30:09 +0900 Message-Id: <20220210063009.1048751-5-shorne@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220210063009.1048751-1-shorne@gmail.com> References: <20220210063009.1048751-1-shorne@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::1030 (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::1030; envelope-from=shorne@gmail.com; helo=mail-pj1-x1030.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Stafford Horne , Jia Liu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The loaded initrd is loaded into memory. It's location and size is then added to the device tree so the kernel knows where to find it. Signed-off-by: Stafford Horne --- hw/openrisc/openrisc_sim.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c index d7c26af82c..5354797e20 100644 --- a/hw/openrisc/openrisc_sim.c +++ b/hw/openrisc/openrisc_sim.c @@ -187,6 +187,32 @@ static hwaddr openrisc_load_kernel(ram_addr_t ram_size, return 0; } +static hwaddr openrisc_load_initrd(Or1ksimState *s, const char *filename, + hwaddr load_start, uint64_t mem_size) +{ + int size; + hwaddr start; + + /* We put the initrd right after the kernel; page aligned. */ + start = TARGET_PAGE_ALIGN(load_start); + + size = load_ramdisk(filename, start, mem_size - start); + if (size < 0) { + size = load_image_targphys(filename, start, mem_size - start); + if (size < 0) { + error_report("could not load ramdisk '%s'", filename); + exit(1); + } + } + + qemu_fdt_setprop_cell(s->fdt, "/chosen", + "linux,initrd-start", start); + qemu_fdt_setprop_cell(s->fdt, "/chosen", + "linux,initrd-end", start + size); + + return start + size; +} + static uint32_t openrisc_load_fdt(Or1ksimState *s, hwaddr load_start, uint64_t mem_size) { @@ -198,7 +224,7 @@ static uint32_t openrisc_load_fdt(Or1ksimState *s, hwaddr load_start, exit(1); } - /* We should put fdt right after the kernel */ + /* We put fdt right after the kernel and/or initrd. */ fdt_addr = ROUND_UP(load_start, 4); fdt_pack(s->fdt); @@ -369,6 +395,10 @@ static void openrisc_sim_init(MachineState *machine) machine->kernel_cmdline); load_addr = openrisc_load_kernel(ram_size, kernel_filename); + if (machine->initrd_filename) { + load_addr = openrisc_load_initrd(s, machine->initrd_filename, + load_addr, machine->ram_size); + } boot_info.fdt_addr = openrisc_load_fdt(s, load_addr, machine->ram_size); }