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 00BBAE748E9 for ; Mon, 2 Oct 2023 16:02:13 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qnLM9-0005uT-Iw; Mon, 02 Oct 2023 12:01:15 -0400 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 1qnLLv-0005ot-Th; Mon, 02 Oct 2023 12:01:01 -0400 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 1qnLLs-0007dv-33; Mon, 02 Oct 2023 12:00:58 -0400 Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Rzlxy5Bc4z6K66L; Mon, 2 Oct 2023 23:59:18 +0800 (CST) Received: from localhost (10.202.227.76) 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 15.1.2507.31; Mon, 2 Oct 2023 17:00:51 +0100 Date: Mon, 2 Oct 2023 17:00:50 +0100 To: Salil Mehta CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH V2 03/10] hw/acpi: Add ACPI CPU hotplug init stub Message-ID: <20231002170050.00004fd8@Huawei.com> In-Reply-To: <20230930001933.2660-4-salil.mehta@huawei.com> References: <20230930001933.2660-1-salil.mehta@huawei.com> <20230930001933.2660-4-salil.mehta@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: [10.202.227.76] X-ClientProxiedBy: lhrpeml100006.china.huawei.com (7.191.160.224) To lhrpeml500005.china.huawei.com (7.191.163.240) 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: -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_H5=0.001, RCVD_IN_MSPIKE_WL=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 Sat, 30 Sep 2023 01:19:26 +0100 Salil Mehta wrote: > ACPI CPU hotplug related initialization should only happen if ACPI_CPU_HOTPLUG > support has been enabled for particular architecture. Add cpu_hotplug_hw_init() > stub to avoid compilation break. > > Signed-off-by: Salil Mehta Seems reasonable. For the other similar cases a stub isn't needed because GED is built when CONFIG_ACPI_HW_REDUCED=y and that select ACPI_MEMORY_HOTPLUG and ACPI_NVDIMM You could do the same for the CPU hotplug case and instantiate a potentially useless memory region etc. This seems more sensible to me Reviewed-by: Jonathan Cameron > --- > hw/acpi/acpi-cpu-hotplug-stub.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/hw/acpi/acpi-cpu-hotplug-stub.c b/hw/acpi/acpi-cpu-hotplug-stub.c > index 3fc4b14c26..c6c61bb9cd 100644 > --- a/hw/acpi/acpi-cpu-hotplug-stub.c > +++ b/hw/acpi/acpi-cpu-hotplug-stub.c > @@ -19,6 +19,12 @@ void legacy_acpi_cpu_hotplug_init(MemoryRegion *parent, Object *owner, > return; > } > > +void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner, > + CPUHotplugState *state, hwaddr base_addr) > +{ > + return; > +} > + > void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list) > { > return; From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.90_1) id 1qnLM3-0005sY-2F for mharc-qemu-devel@gnu.org; Mon, 02 Oct 2023 12:01:07 -0400 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 1qnLLv-0005ot-Th; Mon, 02 Oct 2023 12:01:01 -0400 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 1qnLLs-0007dv-33; Mon, 02 Oct 2023 12:00:58 -0400 Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Rzlxy5Bc4z6K66L; Mon, 2 Oct 2023 23:59:18 +0800 (CST) Received: from localhost (10.202.227.76) 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 15.1.2507.31; Mon, 2 Oct 2023 17:00:51 +0100 Date: Mon, 2 Oct 2023 17:00:50 +0100 From: Jonathan Cameron To: Salil Mehta CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH V2 03/10] hw/acpi: Add ACPI CPU hotplug init stub Message-ID: <20231002170050.00004fd8@Huawei.com> In-Reply-To: <20230930001933.2660-4-salil.mehta@huawei.com> References: <20230930001933.2660-1-salil.mehta@huawei.com> <20230930001933.2660-4-salil.mehta@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: [10.202.227.76] X-ClientProxiedBy: lhrpeml100006.china.huawei.com (7.191.160.224) To lhrpeml500005.china.huawei.com (7.191.163.240) 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: -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_H5=0.001, RCVD_IN_MSPIKE_WL=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: , X-List-Received-Date: Mon, 02 Oct 2023 16:01:06 -0000 Message-ID: <20231002160050.GHxc0bfETglpoP5fBu78-Pj-ApF1d03EsNgY1lTbFKs@z> On Sat, 30 Sep 2023 01:19:26 +0100 Salil Mehta wrote: > ACPI CPU hotplug related initialization should only happen if ACPI_CPU_HOTPLUG > support has been enabled for particular architecture. Add cpu_hotplug_hw_init() > stub to avoid compilation break. > > Signed-off-by: Salil Mehta Seems reasonable. For the other similar cases a stub isn't needed because GED is built when CONFIG_ACPI_HW_REDUCED=y and that select ACPI_MEMORY_HOTPLUG and ACPI_NVDIMM You could do the same for the CPU hotplug case and instantiate a potentially useless memory region etc. This seems more sensible to me Reviewed-by: Jonathan Cameron > --- > hw/acpi/acpi-cpu-hotplug-stub.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/hw/acpi/acpi-cpu-hotplug-stub.c b/hw/acpi/acpi-cpu-hotplug-stub.c > index 3fc4b14c26..c6c61bb9cd 100644 > --- a/hw/acpi/acpi-cpu-hotplug-stub.c > +++ b/hw/acpi/acpi-cpu-hotplug-stub.c > @@ -19,6 +19,12 @@ void legacy_acpi_cpu_hotplug_init(MemoryRegion *parent, Object *owner, > return; > } > > +void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner, > + CPUHotplugState *state, hwaddr base_addr) > +{ > + return; > +} > + > void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list) > { > return;