From mboxrd@z Thu Jan 1 00:00:00 1970 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 03FD9CE7B04 for ; Sat, 7 Sep 2024 02:49:56 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1smlVy-00015Y-Fe; Fri, 06 Sep 2024 22:49:37 -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 1smlV9-0000rT-SS for qemu-devel@nongnu.org; Fri, 06 Sep 2024 22:48:50 -0400 Received: from nyc.source.kernel.org ([147.75.193.91]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1smlV5-0001ww-7k for qemu-devel@nongnu.org; Fri, 06 Sep 2024 22:48:38 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 48B83A43F0D; Sat, 7 Sep 2024 02:48:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78FEFC4CEC4; Sat, 7 Sep 2024 02:48:27 +0000 (UTC) Authentication-Results: smtp.kernel.org; dkim=pass (1024-bit key) header.d=zx2c4.com header.i=@zx2c4.com header.b="fqO02YY5" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1725677304; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3tEnVSgl4KWu1DsgL0C8TGbUh8FjzR6eAkgRRbuiFhw=; b=fqO02YY5HU2dzIXH4LOY7waP1KOWEKEq+VK2fi3DFd0ALf2jlq4EUKGsxhcXb8luexzVoh ln7+wBl1ecMkfj7zz+xVXxfFN25l7W2561YA50qHpmhc1r6x0u0AU+BLvbUUH7ezTwXtNP geFkd0DFal/qrafG/iixh225s5PpreI= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id b2310a09 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Sat, 7 Sep 2024 02:48:24 +0000 (UTC) Date: Sat, 7 Sep 2024 04:48:22 +0200 From: "Jason A. Donenfeld" To: Huacai Chen Cc: maobibo , gaosong@loongson.cn, jiaxun.yang@flygoat.com, qemu-devel@nongnu.org, thomas@t-8ch.de, xry111@xry111.site, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, Jinyang He , Tiezhu Yang Subject: Re: LoongArch without CONFIG_ACPI and CONFIG_EFI Message-ID: References: <84a8ee9c-7781-c474-c394-d1498dc00050@loongson.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Received-SPF: pass client-ip=147.75.193.91; envelope-from=SRS0=+fej=QF=zx2c4.com=Jason@kernel.org; helo=nyc.source.kernel.org X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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 On Sat, Sep 07, 2024 at 09:47:38AM +0800, Huacai Chen wrote: > On Sat, Sep 7, 2024 at 9:44 AM maobibo wrote: > > > > Add huacai who is maintainer of Loongarch Linux kernel. > > > > On 2024/9/6 下午10:55, Jason A. Donenfeld wrote: > > > Hi, > > > > > > It appears that as of QEMU 9.1, it's possible to boot LoongArch machines > > > that don't provide EFI or ACPI. > > > > > > Would you consider removing the `select ACPI` and `select EFI` from the > > > arch Kconfig, so that kernels built for this minimal QEMU environment > > > can be a bit leaner and quicker to build? > Very difficult, at least removing EFI is difficult. Even if booting to > a FDT environment, we still get information from EFI now. Makes sense. !ACPI is the more interesting one for me, anyway, as that takes a while to build.