From patchwork Fri Sep 29 17:59:16 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: 13404710 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 9CA08E728CF for ; Fri, 29 Sep 2023 18:04:21 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qmHnT-00057N-9X; Fri, 29 Sep 2023 14:01:03 -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 1qmHnP-0004nz-Vv for qemu-devel@nongnu.org; Fri, 29 Sep 2023 14:01:01 -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 1qmHnL-0005or-OY for qemu-devel@nongnu.org; Fri, 29 Sep 2023 14:00:58 -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=A/BuwvOQKMa2Gm5PySdrDjVIxKU1rvqpEyClG1IWoXU=; b=fW6NSREnKDHZbnWIoH4Xg/EcQj y3i1jZrsmuR3bcdPlMFvz9st5RgmFXOOmm0rk38ZFi9FLkZ5m0cfW6ir8YpgF+G6i8fbk7OAX/Wv6 7Dce2aRDJwh08LyzVVMohpvmaWClXs0Q8A6WkvUVbCJMXSaMktwJMJ27y5icDXN1CWa00VUpzR+TX EPiWv22+Uw+Yb2cyBFIOUAQUeQIqoW/ggsWn25/+IWUxx3DVS84xqYIBPifCqRQdyfkdnnc+zNrJ4 Mniqu1EvjsIDue6U8lO8SlBzAoaEgYNFJkq8pE6MlFonwA+Z1iDBC80Fru1g/byFXjob6GpDgmvEt nhUWSQua+aaO5E40QdFu2LCZTv0px1bQIwVbl4Bo1NabG/Pi/7hSLvLjbb1oF7oG+bbF04GBuv0TL de5zr922zj2bsGYABFso/6gIg7tWZrYxbJu1pw/oGC4HNEux6uz2JIq6lrAL8hDxFIcX+YeUUo1IV lpgaQo0bgxA+gr7udOwQrs0pfCXib2S0U+kJ9gdUTfgRFUPIXTV88H/5l22cwGSENkmw15TFqPVb1 DtiK1LTHR209KiP3FlemcsfsYAcjJn3ODORcni7wMvYBwABHL6AcTiC/srpFiWFfVStNl4Eh/rrl2 UUTOuYUWKFlSiFggOkPWk1/3ix1CQYH7OL2WFYdGI=; Received: from [2a00:23c4:8baf:5f00:c237:5189:8121:f752] (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 1qmHmx-00033Y-EX; Fri, 29 Sep 2023 19:00:35 +0100 From: Mark Cave-Ayland To: laurent@vivier.eu, qemu-devel@nongnu.org Date: Fri, 29 Sep 2023 18:59:16 +0100 Message-Id: <20230929175917.511133-20-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230929175917.511133-1-mark.cave-ayland@ilande.co.uk> References: <20230929175917.511133-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a00:23c4:8baf:5f00:c237:5189:8121:f752 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v3 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_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 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 b5b2cabc33..87665c6407 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -657,6 +657,11 @@ 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;