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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 56DF1CA9EAB for ; Sat, 19 Oct 2019 15:54:39 +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 295D121925 for ; Sat, 19 Oct 2019 15:54:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 295D121925 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57498 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iLr3u-0005wI-5l for qemu-devel@archiver.kernel.org; Sat, 19 Oct 2019 11:54:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49102) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iLr2i-0004TY-0a for qemu-devel@nongnu.org; Sat, 19 Oct 2019 11:53:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iLr2g-0004yo-Os for qemu-devel@nongnu.org; Sat, 19 Oct 2019 11:53:23 -0400 Received: from 15.mo6.mail-out.ovh.net ([188.165.39.161]:51197) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iLr2g-0004y3-JG for qemu-devel@nongnu.org; Sat, 19 Oct 2019 11:53:22 -0400 Received: from player772.ha.ovh.net (unknown [10.108.35.124]) by mo6.mail-out.ovh.net (Postfix) with ESMTP id 1445E1E4E04 for ; Sat, 19 Oct 2019 17:53:19 +0200 (CEST) Received: from kaod.org (lfbn-1-2229-223.w90-76.abo.wanadoo.fr [90.76.50.223]) (Authenticated sender: clg@kaod.org) by player772.ha.ovh.net (Postfix) with ESMTPSA id 91104B258CEB; Sat, 19 Oct 2019 15:53:13 +0000 (UTC) Subject: Re: qemu/powernv: coreboot support? To: "Marty E. Plummer" References: <20191018172622.kz4smemh5cwesfit@proprietary-killer> <21ba3404-dcd3-fe06-7725-d58e249f9fd2@kaod.org> <20191019153108.gkupn3tnihspq7th@proprietary-killer> From: =?UTF-8?Q?C=c3=a9dric_Le_Goater?= Message-ID: <1cbd1882-15c8-5471-cd65-1c84c2920ba8@kaod.org> Date: Sat, 19 Oct 2019 17:53:12 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191019153108.gkupn3tnihspq7th@proprietary-killer> Content-Type: text/plain; charset=utf-8 Content-Language: en-US X-Ovh-Tracer-Id: 3562065834511207379 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedufedrkedugddvjecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 188.165.39.161 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: Joel Stanley , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 19/10/2019 17:31, Marty E. Plummer wrote: > On Sat, Oct 19, 2019 at 03:46:59PM +0200, C=C3=A9dric Le Goater wrote: >> On 18/10/2019 19:28, Marty E. Plummer wrote: >>> Hello, >>> >>> First off, thank you for the work you've done on the ppc64 support, i= t >>> has been very useful. I'm currently working on a coreboot port for th= e >>> talos ii line of systems (which means more ppc64 support, support >>> specifically for the power9 sforza chip, and specific mainboard suppo= rt. >>> My plate is very full lol) and have been using qemu to debug the >>> bootblock. >>> >>> It has been very useful for that, but I'm now at the point where I ne= ed >>> to jump to romstage, and that's where it gets tricky. qemu parses the= rom >>> image and looks for a ffs header, locates skiboot on it, and jumps st= raight >>> to that. Not exactly ideal for debugging something not produced from = op-build. >> >> yes. I suppose you are using my branch powernv-4.2 which adds PNOR sup= port >> and a way to boot directly from PNOR. In that case, QEMU parses the PN= OR >> file to extract the PAYLOAD partition (skiboot). skiboot also detects = the >> flash and extract the kernel and initramfs from the PNOR. >> >> However, you can bypass all this internal boot process by simply passi= ng >> a -bios option and not passing a MTD device. >> > Doing so gives me the following error: > qemu-system-ppc64: Could not load OPAL firmware 'build/coreboot.rom' > (this is after I patched the 4mb size limit up) Could you make that rom available ?=20 Thanks, C.=20