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_2 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 3BF1EC43331 for ; Tue, 31 Mar 2020 17:30:55 +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 0EB1B20BED for ; Tue, 31 Mar 2020 17:30:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0EB1B20BED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=Huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42240 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJKj0-0001FU-6C for qemu-devel@archiver.kernel.org; Tue, 31 Mar 2020 13:30:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50969) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jJKiC-0000Cs-UJ for qemu-devel@nongnu.org; Tue, 31 Mar 2020 13:30:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jJKiB-0005WT-Mz for qemu-devel@nongnu.org; Tue, 31 Mar 2020 13:30:04 -0400 Received: from lhrrgout.huawei.com ([185.176.76.210]:2092 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jJKiB-0005RU-FM for qemu-devel@nongnu.org; Tue, 31 Mar 2020 13:30:03 -0400 Received: from lhreml710-chm.china.huawei.com (unknown [172.18.7.106]) by Forcepoint Email with ESMTP id 16D5E3A816AAF1D41541; Tue, 31 Mar 2020 18:29:59 +0100 (IST) Received: from localhost (10.47.93.255) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Tue, 31 Mar 2020 18:29:58 +0100 Date: Tue, 31 Mar 2020 18:29:50 +0100 From: Jonathan Cameron To: Peter Maydell Subject: Re: [PATCH v7 00/41] target/arm: Implement ARMv8.1-VHE Message-ID: <20200331182950.00004349@Huawei.com> In-Reply-To: <20200331163324.000020fb@Huawei.com> References: <20200206105448.4726-1-richard.henderson@linaro.org> <20200331163324.000020fb@Huawei.com> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; i686-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.47.93.255] X-ClientProxiedBy: lhreml736-chm.china.huawei.com (10.201.108.87) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 185.176.76.210 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: salil.mehta@huawei.com, Richard Henderson , QEMU Developers , shameerali.kolothum.thodi@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, 31 Mar 2020 16:33:24 +0100 Jonathan Cameron wrote: > On Fri, 7 Feb 2020 11:52:46 +0000 > Peter Maydell wrote: > > > On Thu, 6 Feb 2020 at 10:54, Richard Henderson > > wrote: > > > > > > Version 7 has one more tweak to the vhe tlb flushing > > > that Peter asked for. All patches have reviews. > > > > > > > > > > > > > > Applied to target-arm.next, thanks. > > Hi Peter / Richard. > > Just wondering if there are any known issues with this? > > I'm trying to test with mainline kernel 5.6, and the qemu rc0. > Host emulating 4 core cpu=max,virtualization=on, guest 1 core. > > I get one of those lovely init died messages. > (copy typed between screens) > > Run /sbin/init as init process > Kernel panic - not synching: Attempted to kill init! exitcode =0x0000000b > > Nothing obvious in the trace for why. > > Same kernel / image / setup etc works fine when tested with a real > VHE supporting machine as the host (kunpeng920). Another data point. All seems fine with cpu=cortex-a57,virtualization=on but obviously without VHE. Thanks to Salil for pointing out I'd not run this combination. Jonathan > > Also fine running as a guest inside the emulated host without kvm. > > This is a bit too much of a case of Russian dolls so I'm not even sure > how to get any useful debug information. > > Thanks, > > Jonathan > > > > > > -- PMM > > >