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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id BD716E77188 for ; Fri, 10 Jan 2025 12:31:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tWEAv-00042a-SO; Fri, 10 Jan 2025 07:31:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tWEAr-00042M-Ns for qemu-devel@nongnu.org; Fri, 10 Jan 2025 07:31:37 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tWEAp-0006VV-HB for qemu-devel@nongnu.org; Fri, 10 Jan 2025 07:31:37 -0500 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4YV1Fh1Dc8z6L4tL for ; Fri, 10 Jan 2025 20:30:16 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id 62139140C98 for ; Fri, 10 Jan 2025 20:31:30 +0800 (CST) Received: from localhost (10.203.177.66) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 10 Jan 2025 13:31:30 +0100 Date: Fri, 10 Jan 2025 12:31:28 +0000 To: "Zhijian Li (Fujitsu)\" via "@domain.invalid CC: "Zhijian Li (Fujitsu)" , Itaru Kitayama Subject: Re: CXL emulation on aarch64 Message-ID: <20250110123128.00004a5b@huawei.com> In-Reply-To: <483e8037-3c72-4560-b4b8-2437d37ca8c4@fujitsu.com> References: <0C019F50-9020-42ED-B051-998F03BFB709@linux.dev> <483e8037-3c72-4560-b4b8-2437d37ca8c4@fujitsu.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.203.177.66] X-ClientProxiedBy: lhrpeml100004.china.huawei.com (7.191.162.219) To frapeml500008.china.huawei.com (7.182.85.71) Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jonathan Cameron From: Jonathan Cameron via Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Fri, 10 Jan 2025 09:20:54 +0000 "Zhijian Li (Fujitsu)" via wrote: > On 10/01/2025 13:29, Itaru Kitayama wrote: > > Hi, > > Is anybody working on the CXL emulation on aarch64? =20 >=20 > I'm not currently working on the CXL emulation on aarch64. >=20 > However, IIRC the CXL maintainer's tree should work. > https://gitlab.com/jic23/qemu/ Pick up latest branch from there. I'm prepping a rebased version with some new stuff but might take a few more days. Note my main development work is on arm64 so that tends to work more reliably than x86 which I only lightly test for stuff that isn't ready for upstream yet. Give me a shout if you run into any problems. The main blocker on upstreaming this is resolving the missing device tree support for PCI expander bridges. I've not made any progress on this since talk at Linaro connect in 2023. Jonathan >=20 >=20 > Thanks > Zhijian >=20 > > If there=E2=80=99s a WIP branch, a pointer would be appreciated. > >=20 > > Itaru =20