From patchwork Sat Feb 22 17:52:27 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: BALATON Zoltan X-Patchwork-Id: 13986792 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 C963EC021B5 for ; Sat, 22 Feb 2025 17:53:50 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tltgB-0000ct-7A; Sat, 22 Feb 2025 12:52:43 -0500 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 1tltg2-0000aT-VJ; Sat, 22 Feb 2025 12:52:35 -0500 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tltg1-0008FL-BC; Sat, 22 Feb 2025 12:52:34 -0500 Received: from zero.eik.bme.hu (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id 51E6C4E603D; Sat, 22 Feb 2025 18:52:29 +0100 (CET) X-Virus-Scanned: amavisd-new at eik.bme.hu Received: from zero.eik.bme.hu ([127.0.0.1]) by zero.eik.bme.hu (zero.eik.bme.hu [127.0.0.1]) (amavisd-new, port 10028) with ESMTP id AgLjVDT4CUU0; Sat, 22 Feb 2025 18:52:27 +0100 (CET) Received: by zero.eik.bme.hu (Postfix, from userid 432) id 0EF944E6001; Sat, 22 Feb 2025 18:52:27 +0100 (CET) Message-Id: From: BALATON Zoltan Subject: [PATCH 0/4] ppc/amigaone patches To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Nicholas Piggin Date: Sat, 22 Feb 2025 18:52:27 +0100 (CET) Received-SPF: pass client-ip=2001:738:2001:2001::2001; envelope-from=balaton@eik.bme.hu; helo=zero.eik.bme.hu X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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 Hello, This series adds NVRAM and support for -kernel, -initrd and -append options to the amigaone machine. This makes it easier to boot AmigaOS and avoids a crash in the guest when it tries to access NVRAM. While the -kernel option emulates what U-Boot passes to the kernel, old Linux kernels for amigaone may not work with it because of two reasons: these come in legacy U-Boot Multi-File image format that QEMU cannot read and even after unpacking that and creating a kernel uimage it won't find PCI devices because it does not initialise them correctly. This works when booted from U-Boot because U-Boot inits PCI devices. So does my BBoot loader which can be used to load AmigaOS so I don't intend to emulate that part of U-Boot. I'd like this to be merged for the next release please. When merging please update https://wiki.qemu.org/ChangeLog/10.0 with the following: amigaone Added support for NVRAM and -kernel, -initrd, -append command line options. By default the NVRAM contents are not preserved between sessions. To make it persistent create a backing file with 'qemu-image create -f raw nvram.bin 4k' and add -drive if=mtd,format=raw,file=nvram.bin to keep NVRAM contents in the backing file so settings stored in it will be preserved between sessions. To run AmigaOS with BBoot using the -kernel option at least BBoot version 0.8 is needed. Older BBoot versions only work with -device loader and cannot be used with -kernel on amigaone. Regards, BALATON Zoltan (4): ppc/amigaone: Simplify replacement dummy_fw ppc/amigaone: Implement NVRAM emulation ppc/amigaone: Add default environment ppc/amigaone: Add kernel and initrd support hw/ppc/amigaone.c | 269 ++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 261 insertions(+), 8 deletions(-)