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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 6F305C47094 for ; Thu, 10 Jun 2021 12:54:12 +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 C7107613C0 for ; Thu, 10 Jun 2021 12:54:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C7107613C0 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]:52152 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lrKCI-0005sl-Rh for qemu-devel@archiver.kernel.org; Thu, 10 Jun 2021 08:54:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33418) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrKBL-0004M1-6Z; Thu, 10 Jun 2021 08:53:11 -0400 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]:54173) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrKBE-00020l-GB; Thu, 10 Jun 2021 08:53:10 -0400 Received: from zero.eik.bme.hu (blah.eik.bme.hu [152.66.115.182]) by localhost (Postfix) with SMTP id EE29C7457EF; Thu, 10 Jun 2021 14:52:51 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id CA0867462DB; Thu, 10 Jun 2021 14:52:51 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id C85AC7457F0; Thu, 10 Jun 2021 14:52:51 +0200 (CEST) Date: Thu, 10 Jun 2021 14:52:51 +0200 (CEST) From: BALATON Zoltan To: luigi burdo Subject: Re: R: [RFC PATCH 0/5] ppc/Pegasos2 VOF In-Reply-To: Message-ID: References: <5ab75d13-2fca-17cc-b24f-e86430fdda20@ozlabs.ru> , MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="3866299591-86865838-1623329571=:53181" 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "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" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --3866299591-86865838-1623329571=:53181 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT On Thu, 10 Jun 2021, luigi burdo wrote: > i dont know if you know and if in the docs is described the pegasos II can support smp dual G4 cpu. I think theoretically the Marvell Discovery II chip can support dual CPU and meybe even a G5, this is described in its docs. However in practice this was never implemented for Pegasos2 and there was only either a G3 or G4 single CPU card available for it. It probably does not make much sense to emulate anything else than the G4 version as that's what has the most features that guest OSes can use. The current emulation is just enough for that and I don't plan to implement more of the MV64361 chip to emulate non existent SMP configs as probably nothing would run on it anyway so it does not worth the extra effort. > Here some hystorical info about this great machine from the past Phase 5 A\BOX (kosmoplovci.net). > i remember really good that period (when i was young man)... the caipirinha become one of my best cocktail 🙂 Maybe interesting for history behind Pegasos2 only but otherwise probably not too relevant to how it was actually implemented at the end which is what counts if you want to run existing guests OSes. This doc seems to describe a system that wasn't implemented but instead a similar system was made from off the shelf components available at the time so for emulation a better reference are the docs of those chips. Regards. BALATON Zoltan --3866299591-86865838-1623329571=:53181--