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 X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27BC6C433ED for ; Tue, 6 Apr 2021 10:40:41 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 66D53613B3 for ; Tue, 6 Apr 2021 10:40:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 66D53613B3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=eik.bme.hu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:59178 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lTj8R-00013U-Cx for qemu-devel@archiver.kernel.org; Tue, 06 Apr 2021 06:40:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35538) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lTj76-0000bg-RR; Tue, 06 Apr 2021 06:39:16 -0400 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]:36427) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lTj6v-0004im-DD; Tue, 06 Apr 2021 06:39:16 -0400 Received: from zero.eik.bme.hu (blah.eik.bme.hu [152.66.115.182]) by localhost (Postfix) with SMTP id 14AC37462E0; Tue, 6 Apr 2021 12:38:59 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id E71A674581E; Tue, 6 Apr 2021 12:38:58 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id E55B17456E3; Tue, 6 Apr 2021 12:38:58 +0200 (CEST) Date: Tue, 6 Apr 2021 12:38:58 +0200 (CEST) From: BALATON Zoltan To: =?ISO-8859-15?Q?Philippe_Mathieu-Daud=E9?= Subject: Re: [PATCH-for-6.0] hw/ppc/mac_newworld: Restrict RAM to 2 GiB In-Reply-To: <20210406084842.2859664-1-f4bug@amsat.org> Message-ID: References: <20210406084842.2859664-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="3866299591-1745056200-1617705538=:13819" 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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org, Greg Kurz , qemu-ppc@nongnu.org, Igor Mammedov , =?ISO-8859-15?Q?H=E5vard_Eidnes?= , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --3866299591-1745056200-1617705538=:13819 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT On Tue, 6 Apr 2021, Philippe Mathieu-Daudé wrote: > On Mac99 and newer machines, the Uninorth PCI host bridge maps > the PCI hole region at 2GiB, so the RAM area beside 2GiB is not > accessible by the CPU. Restrict the memory to 2GiB to avoid > problems such the one reported in the buglink. > > Buglink: https://bugs.launchpad.net/qemu/+bug/1922391 > Reported-by: Håvard Eidnes > Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: BALATON Zoltan > --- > hw/ppc/mac_newworld.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c > index 21759628466..d88b38e9258 100644 > --- a/hw/ppc/mac_newworld.c > +++ b/hw/ppc/mac_newworld.c > @@ -157,6 +157,10 @@ static void ppc_core99_init(MachineState *machine) > } > > /* allocate RAM */ > + if (machine->ram_size > 2 * GiB) { > + error_report("RAM size more than 2 GiB is not supported"); > + exit(1); > + } > memory_region_add_subregion(get_system_memory(), 0, machine->ram); > > /* allocate and load firmware ROM */ > --3866299591-1745056200-1617705538=:13819--