From nobody Wed Jan 15 05:17:09 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ilande.co.uk Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 168496279269171.30284939903902; Wed, 24 May 2023 14:13:12 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q1vn5-0005Gd-Pq; Wed, 24 May 2023 17:13:03 -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 1q1vn3-0004ul-8b for qemu-devel@nongnu.org; Wed, 24 May 2023 17:13:01 -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 1q1vn0-0002H5-1u for qemu-devel@nongnu.org; Wed, 24 May 2023 17:13:00 -0400 Received: from [2a00:23c4:8bac:6900:b726:cf58:4c12:f013] (helo=kentang.home) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1q1vml-0005XR-6U; Wed, 24 May 2023 22:12:43 +0100 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=Bto7ry5odXfABcKODlJmXnSA6aGzrCs70PRGGFISC1Q=; b=TJllyv8STvq9w6UJN8iipPyXwy ncTFfuMfnAEUWi9BIrpPkTaNHHPTpnjWvg7JNbthte2RVgeyZRj+8XlQo0P66Q9KVevbVbeU/dl+V /Sli8wuLBYo2ZU8e6+3VlLWMYpax4admdF5T3blFu46AxpF586CEyxMpcPV+Cjg9uhpkOc48DC4Jl CJNI43tmAisQDEaC4r4pRzkln+T5DMq5c04/kBcBHACesetbRj+gMi7i5yDwKqo/En8gCGUkIdnt3 IdZDeLphZKzCMu0pAUs0NlFAIGz4oMYVGJx6aHCi8/Z24BVBwHyGVgFpyJsT9NjPdkyxVmEDyNu4j XwYR6QIROxu01gJQ0UyUZS0BpmjTGx33n+OS20l9LBRbZ2CB/zvLiVM57/hta6dRvTIcLZnxO81Ze GcqrjN3wjtnB2YxjiG2s12YBvP5x1465FN8NQQQO5bnSrEZ5i18mu9sRsLUJogpNRsj5hI/Wan85G njWfnp83+atmIQKh5Br98CEnBPd2OSrA2ggkgKMwwHWUQChzfdL8tVewo9ccJkOkTY+zeOKoIH3O7 BJ3kkxHyLGYiJhiukwWH7WvOMrJMCE+SZlUqG+qf0LLluTAFYTq9kErGe+G8zdlt2voIKc1otMxOH s8WXOgqlcedFfuP4vkgCny9MempYLzSpthsge4ohI=; From: Mark Cave-Ayland To: laurent@vivier.eu, qemu-devel@nongnu.org Date: Wed, 24 May 2023 22:11:01 +0100 Message-Id: <20230524211104.686087-28-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230524211104.686087-1-mark.cave-ayland@ilande.co.uk> References: <20230524211104.686087-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 2a00:23c4:8bac:6900:b726:cf58:4c12:f013 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH 27/30] q800: add ESCC alias at 0xc000 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 (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1684962793278100005 Content-Type: text/plain; charset="utf-8" Tests on real Q800 hardware show that the ESCC is addressable at multiple l= ocations within the ESCC memory region - at least 0xc000, 0xc020 (as expected by the= MacOS toolbox ROM) and 0xc040. All released NetBSD kernels before 10 use the 0xc000 address which causes a= fatal error when running the MacOS booter. Add a single memory region alias at 0x= c000 to enable NetBSD kernels to start booting under QEMU. Signed-off-by: Mark Cave-Ayland --- hw/m68k/q800.c | 6 ++++++ include/hw/m68k/q800.h | 1 + 2 files changed, 7 insertions(+) diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c index 1af1a06f64..3acdb5dd8d 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -682,6 +682,12 @@ static void q800_machine_init(MachineState *machine) memory_region_add_subregion(&m->macio, SCC_BASE - IO_BASE, sysbus_mmio_get_region(sysbus, 0)); =20 + /* Create alias for NetBSD */ + memory_region_init_alias(&m->escc_alias, NULL, "escc-alias", + sysbus_mmio_get_region(sysbus, 0), 0, 0x8); + memory_region_add_subregion(&m->macio, SCC_BASE - IO_BASE - 0x20, + &m->escc_alias); + /* SCSI */ =20 dev =3D qdev_new(TYPE_SYSBUS_ESP); diff --git a/include/hw/m68k/q800.h b/include/hw/m68k/q800.h index 0144be5e6e..3039b24d30 100644 --- a/include/hw/m68k/q800.h +++ b/include/hw/m68k/q800.h @@ -40,6 +40,7 @@ struct Q800MachineState { MemoryRegion macio; MemoryRegion macio_alias; MemoryRegion machine_id; + MemoryRegion escc_alias; }; =20 #define TYPE_Q800_MACHINE MACHINE_TYPE_NAME("q800") --=20 2.30.2