From patchwork Wed Oct 4 08:38:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 13408387 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 0509EE8FDDB for ; Wed, 4 Oct 2023 08:40:35 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qnxQD-0007Zk-Nt; Wed, 04 Oct 2023 04:39:57 -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 1qnxQ2-0006uy-QE for qemu-devel@nongnu.org; Wed, 04 Oct 2023 04:39:51 -0400 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qnxPr-0007l3-JB for qemu-devel@nongnu.org; Wed, 04 Oct 2023 04:39:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=LDAnj05b9ISTPE8LDHJnawABkQ9209MrO7Qu4Ieiarw=; b=iOpiCZzSL+XjsYFnREPp7dVGhV 5bIm/Sw0plCsNvDEGMgY52B2ZLVaCVeuwcUvNP2u3WIWSSDFD9Bk27nbTiqlZIMqRyKX3tUjMmM6v DD4Q08Ku07BbeQtTAklVVFMUFlVIdIhR2BBw6y+KFSoz63Zx/vcXJOe7TNtkSfMbtcYVA393aUPWG z64OqOheQxk6vh0JbXdsvB8kAhJF3opTAV+Ko9wAaURaMmP4KBUIUafF8mzFE/5mVLKhIbIMKqC4C SOJo7lPOKgzwnS9K0kEFmb4wgx59PBzsJX9Yyrn3fsQnJicXcda9t3wgvru4mP13f3/3uO/+ViqXP ya80TYGftG9BewuqR1W7XJHlEe7nLACEGJq9TIZ8YLQQashtbNUfFKkJLTDW5cNL1d8WUiVfGoM+U 2mS0cWpYHBkVib4xfwOL3h+Ey20keWyu3Rs6MBBWRFC4B4ysyIeU9OMm0l+deinPMhL5+I/eEY+hc cwbfcKJoJdPCep5b3rBOYjRup+Wjn87vZHoET/LjVdYUUyZa1I8Vp8H3ZyqMFybzaOO2GZwpsfHgK 9BXgtLCvVR73MQRxA6E6S8T/Xn/U+B81mS9x/FbXPxAl/53WbHcDHFqfNujTxI8Wgzft7z+Gh3uxD v16J0p+lSmxL/0qlRGfOQpZ7vf1+41x7dCauh1UYg=; Received: from host86-159-123-68.range86-159.btcentralplus.com ([86.159.123.68] helo=localhost.localdomain) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qnxPW-0006za-4u; Wed, 04 Oct 2023 09:39:14 +0100 From: Mark Cave-Ayland To: laurent@vivier.eu, qemu-devel@nongnu.org Date: Wed, 4 Oct 2023 09:38:05 +0100 Message-Id: <20231004083806.757242-20-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231004083806.757242-1-mark.cave-ayland@ilande.co.uk> References: <20231004083806.757242-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 86.159.123.68 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v4 19/20] q800: add alias for MacOS toolbox ROM at 0x40000000 X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, SPF_PASS=-0.001, T_SPF_HELO_TEMPERROR=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org According to the Apple Quadra 800 Developer Note document, the Quadra 800 ROM consists of 2 ROM code sections based at offsets 0x0 and 0x800000. A/UX attempts to access the toolbox ROM at the lower offset during startup, so provide a memory alias to allow the access to succeed. Signed-off-by: Mark Cave-Ayland Reviewed-by: Laurent Vivier --- hw/m68k/q800.c | 5 +++++ include/hw/m68k/q800.h | 1 + 2 files changed, 6 insertions(+) diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c index 27a0b3c08a..1d7cd5ff1c 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -660,6 +660,11 @@ static void q800_machine_init(MachineState *machine) filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); memory_region_add_subregion(get_system_memory(), MACROM_ADDR, &m->rom); + memory_region_init_alias(&m->rom_alias, NULL, "m68k_mac.rom-alias", + &m->rom, 0, MACROM_SIZE); + memory_region_add_subregion(get_system_memory(), 0x40000000, + &m->rom_alias); + /* Load MacROM binary */ if (filename) { bios_size = load_image_targphys(filename, MACROM_ADDR, MACROM_SIZE); diff --git a/include/hw/m68k/q800.h b/include/hw/m68k/q800.h index 348eaf4703..a9661f65f6 100644 --- a/include/hw/m68k/q800.h +++ b/include/hw/m68k/q800.h @@ -50,6 +50,7 @@ struct Q800MachineState { bool easc; M68kCPU cpu; MemoryRegion rom; + MemoryRegion rom_alias; GLUEState glue; MOS6522Q800VIA1State via1; MOS6522Q800VIA2State via2;