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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 5A229C56202 for ; Wed, 25 Nov 2020 16:13:02 +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 56C2F2087C for ; Wed, 25 Nov 2020 16:13:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 56C2F2087C 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]:42246 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1khxPg-0000np-37 for qemu-devel@archiver.kernel.org; Wed, 25 Nov 2020 11:13:00 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:56676) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1khxOv-0000NJ-CH for qemu-devel@nongnu.org; Wed, 25 Nov 2020 11:12:13 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]:2071) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1khxOs-00029h-Py for qemu-devel@nongnu.org; Wed, 25 Nov 2020 11:12:12 -0500 Received: from fraeml742-chm.china.huawei.com (unknown [172.18.147.200]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Ch5T86jDvz67J0y; Thu, 26 Nov 2020 00:10:20 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml742-chm.china.huawei.com (10.206.15.223) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Wed, 25 Nov 2020 17:12:06 +0100 Received: from localhost (10.52.126.32) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.1913.5; Wed, 25 Nov 2020 16:12:04 +0000 Date: Wed, 25 Nov 2020 16:11:48 +0000 From: Jonathan Cameron To: David Hildenbrand Subject: Re: [PATCH v2] hw/arm/virt enable support for virtio-mem Message-ID: <20201125161148.00005f6e@Huawei.com> In-Reply-To: <7c635948-b78c-c28f-f170-dc9291af4fac@redhat.com> References: <20201105174311.566751-1-Jonathan.Cameron@huawei.com> <5b1dff01-7e6b-78d2-d55a-20c0617c3076@redhat.com> <20201124181150.0000025f@Huawei.com> <20201125145659.00004b3e@Huawei.com> <7c635948-b78c-c28f-f170-dc9291af4fac@redhat.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: [10.52.126.32] X-ClientProxiedBy: lhreml705-chm.china.huawei.com (10.201.108.54) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com 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, RCVD_IN_MSPIKE_H2=-0.001, 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: Peter Maydell , linuxarm@huawei.com, qemu-devel@nongnu.org, Auger Eric , "Michael S . Tsirkin" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Wed, 25 Nov 2020 16:54:53 +0100 David Hildenbrand wrote: > >>>> > >>>> 64k guest on 4k host with 512MiB block size seems fine. > >>>> > >>>> If there are any places anyone thinks need particular poking I'd appreciate a hint :) > >>> > >>> If things seem to work for now, that's great :) Thanks! > >>> > >> Cool. I'll run a few more comprehensive tests then send out the > >> trivial patch to enable the kernel option + v2 of the qemu support. > > > > Perfect, thanks! > > Oh, btw, I have no idea what the state of vfio-pci + QEMU on arm64 is. > In case it's supposed to work, you could give > > https://lkml.kernel.org/r/20201119153918.120976-1-david@redhat.com > > to see what we're missing. vfio-pci works in general (and we use it a lot), so sure I'll give this a test run. > > I added a short virtio-pci guide to > > https://virtio-mem.gitlab.io/user-guide/user-guide-qemu.html > Thanks, Jonathan