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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A179C67871 for ; Fri, 13 Jan 2023 14:58:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229521AbjAMO6q (ORCPT ); Fri, 13 Jan 2023 09:58:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48392 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229449AbjAMO5w (ORCPT ); Fri, 13 Jan 2023 09:57:52 -0500 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0784093C12 for ; Fri, 13 Jan 2023 06:45:16 -0800 (PST) Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.200]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4NtkjD3tYYz6J9bw; Fri, 13 Jan 2023 22:45:04 +0800 (CST) Received: from localhost (10.81.201.219) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Fri, 13 Jan 2023 14:45:13 +0000 Date: Fri, 13 Jan 2023 14:45:11 +0000 From: Jonathan Cameron To: Gregory Price CC: , Michael Tsirkin , Ben Widawsky , , , Ira Weiny , Gregory Price , Lukas Wunner Subject: Re: [PATCH 0/8] hw/cxl: CXL emulation cleanups and minor fixes for upstream Message-ID: <20230113144511.00001207@Huawei.com> In-Reply-To: <20230113144026.000001fb@Huawei.com> References: <20230111142440.24771-1-Jonathan.Cameron@huawei.com> <20230112172130.0000391b@Huawei.com> <20230113091213.00002146@Huawei.com> <20230113144026.000001fb@Huawei.com> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.81.201.219] X-ClientProxiedBy: lhrpeml500004.china.huawei.com (7.191.163.9) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org On Fri, 13 Jan 2023 14:40:26 +0000 Jonathan Cameron wrote: > On Fri, 13 Jan 2023 09:19:59 -0500 > Gregory Price wrote: > > > On Fri, Jan 13, 2023 at 09:12:13AM +0000, Jonathan Cameron wrote: > > > > > > Just to check, are these different from the on stack problem you reported > > > previously? Doesn't look like the fix for that has made it upstream yet. > > > > > > What kernel are you running? > > > > > > > > > > The prior issue I saw was related to the CXL Fixed Memory Window having > > an e820 region registered during machine initialization. That fix is > > upstream. > > > > On 2023-1-11 branch it is commit 2486dd045794d65598fbca9fd1224c27b9732dce > > > > This one appears when registering any kind of type-3 device, during > > boot. > > I meant this one > > https://lore.kernel.org/all/20221118000524.1477383-1-ira.weiny@intel.com/ > > Sorry, should have dug out a link in earlier reply and save a round trip. Ah I'd forgotten we were going round the houses somewhat on the right fix... https://lore.kernel.org/all/20221128040338.1936529-3-ira.weiny@intel.com/ was another proposal and Lukas had yet another. https://lore.kernel.org/all/cover.1669608950.git.lukas@wunner.de/ > > Jonathan