From nobody Tue Feb 10 19:48:43 2026 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 1696010637910430.43464464500346; Fri, 29 Sep 2023 11:03:57 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qmHnM-0004Ce-ES; Fri, 29 Sep 2023 14:00:56 -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 1qmHnK-0003wY-6B for qemu-devel@nongnu.org; Fri, 29 Sep 2023 14:00:54 -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 1qmHnH-0005oT-TS for qemu-devel@nongnu.org; Fri, 29 Sep 2023 14:00:53 -0400 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 1qmHmt-00033Y-AK; Fri, 29 Sep 2023 19:00:31 +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=SCkyV2RsykmyIyZGMKXy847s3HWLY/6ZVJkWSTeEuw0=; b=tCtwmC/Vhsa9bJg0ny/1X1V6wR 4AJTByB7C9ARh3HR92YFF90dgx+5YYHwn19f/XnFoGsa1RaxSx3mar+GP0zfC52dP1mJKhqbGfw5e oX0oNxD93jxS1dTG0p7mNyGT0Qk5yO00Oa1Ao265rQU+U4dD8y36dN2/QWGZmWZXJbpDEk2I2FB1C jReRnc9P0hP9GCqUnYIHsvaOB7E3Zo2HtItsA8kcTQYMMfxk+YetoeP0+41MIyOrsv2KkzOOte2JY i7iUbqkrHAdquG6jX5xtaxQEfP/hjt8SOSQyP2LA5IJtftvDn45myEtKNrsNW0ZJp3fh73Jm7hdR4 hrcHcm2DleovP0ElVed+3BSLR/dI87hTUyldaEbeRJ/S6YXck/rwD9dSCRgyxReMsN58kf3ynNo+T qniEgOfnhrXeSiQRJXo+ih0UYYlgUyk9FBiuZjRhwgjRHdY51D54m30DsWSjlodC+c60CbT7b++kZ Bd/VFtueSnrAB+mtarqFtEN1q7zy8F1AmcEfdGE29gciprTjjZgYiz/BgULJ6Y3QyP5Dx6UKQdJQY /I/QqWF31dZxvKe7JIuHRVIopw4jHf014fSTZ0gJAyKhcOmF4Jm2vQrTHGUW5cW/IrWaiIrP/PAUC b10ThdKnqtPJR++OAhMTg9aIOZKt0hq3OA0UO/sLs=; From: Mark Cave-Ayland To: laurent@vivier.eu, qemu-devel@nongnu.org Date: Fri, 29 Sep 2023 18:59:15 +0100 Message-Id: <20230929175917.511133-19-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 Content-Transfer-Encoding: quoted-printable 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 18/20] 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 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: 1696010639003100005 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 Reviewed-by: Laurent Vivier --- 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 5ae7c37760..b5b2cabc33 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -451,6 +451,12 @@ 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, OBJECT(machine), "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 object_initialize_child(OBJECT(machine), "esp", &m->esp, diff --git a/include/hw/m68k/q800.h b/include/hw/m68k/q800.h index fbaacd88bd..348eaf4703 100644 --- a/include/hw/m68k/q800.h +++ b/include/hw/m68k/q800.h @@ -67,6 +67,7 @@ struct Q800MachineState { MemoryRegion macio; MemoryRegion macio_alias; MemoryRegion machine_id; + MemoryRegion escc_alias; }; =20 #define TYPE_Q800_MACHINE MACHINE_TYPE_NAME("q800") --=20 2.39.2