From patchwork Tue Sep 26 09:54:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xianglai Li X-Patchwork-Id: 13398962 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 2B518E7D272 for ; Tue, 26 Sep 2023 09:55:16 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ql4mF-0003Yd-HQ; Tue, 26 Sep 2023 05:54:48 -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 1ql4mD-0003Xu-Mh for qemu-devel@nongnu.org; Tue, 26 Sep 2023 05:54:45 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ql4m9-0001ao-Hw for qemu-devel@nongnu.org; Tue, 26 Sep 2023 05:54:45 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8AxTetYqhJlLaIsAA--.14436S3; Tue, 26 Sep 2023 17:54:32 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Dxnd5YqhJlTJgSAA--.40131S2; Tue, 26 Sep 2023 17:54:32 +0800 (CST) From: xianglai li To: qemu-devel@nongnu.org Subject: [PATCH v3 0/7] *** Adds CPU hot-plug support to Loongarch *** Date: Tue, 26 Sep 2023 17:54:25 +0800 Message-Id: X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Dxnd5YqhJlTJgSAA--.40131S2 X-CM-SenderInfo: 5ol0xt5qjotxo6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=lixianglai@loongson.cn; helo=mail.loongson.cn 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, 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hello everyone, We refer to the implementation of ARM CPU Hot-Plug to add GED-based CPU Hot-Plug support to Loongarch. The first 2 patches are changes to the QEMU common code, including adding GED support for CPU Hot-Plug, updating the ACPI table creation process. For the modification of the public part of the code, we refer to the arm-related patch, and the link address of the corresponding patch is as follows: https://lore.kernel.org/all/20200613213629.21984-1-salil.mehta@huawei.com/ We also refer to shentey's patch link as follows: https://patchew.org/QEMU/20230908084234.17642-1-shentey@gmail.com/ In order to respect the work of "Salil Mehta" and shentey, we will rebase the first 2 patches in the final patch, which are referenced here to ensure that the loongarch cpu hotplug can work properly. The last 5 patches are Loongarch architecture-related, and the modifications include the definition of the hook function related to the CPU Hot-(UN)Plug, the allocation and release of CPU resources when CPU Hot-(UN)Plug, the creation process of updating the ACPI table, and finally the custom switch for the CPU Hot-Plug. V3: - The call to the function qdev_disconnect_gpio_out_named was removed - The use of the function cpu_address_space_destroy is necessary, most architectures also need to be called, we want to call in the common path, rather than each cpu architecture itself, because the scheme is not sure we want to solve this problem in a separate patch, here we do the function rollback processing. - Referring to shentey's patch, loongarch no longer creates the TYPE_ACPI_GED_LOONGARCH device class, but instead passes build_madt_cpu_fn directly as an argument to the build_cpus_aml function V2: - Fix formatting and spelling errors - Split large patches into smaller patches - Split the original patch <> into <> <> <>. - Split the original patch <> into <> <> - Added loongarch cpu topology calculation method. - Change the position of the cpu topology patch. - Change unreasonable variable and function names. xianglai li (7): Update ACPI GED framework to support vcpu hot-(un)plug Update CPUs AML with cpu-(ctrl)dev change Added CPU topology support for Loongarch Optimize loongarch_irq_init function implementation Add basic CPU hot-(un)plug support for Loongarch Add support of *unrealize* for Loongarch cpu Update the ACPI table for the Loongarch CPU .../devices/loongarch64-softmmu/default.mak | 1 + docs/system/loongarch/virt.rst | 31 ++ hw/acpi/acpi-cpu-hotplug-stub.c | 15 + hw/acpi/cpu.c | 27 +- hw/acpi/generic_event_device.c | 33 ++ hw/i386/acpi-build.c | 3 +- hw/loongarch/acpi-build.c | 34 +- hw/loongarch/virt.c | 409 +++++++++++++++--- include/hw/acpi/cpu.h | 5 +- include/hw/acpi/cpu_hotplug.h | 10 + include/hw/acpi/generic_event_device.h | 5 + include/hw/loongarch/virt.h | 6 +- target/loongarch/cpu.c | 33 +- target/loongarch/cpu.h | 13 +- 14 files changed, 542 insertions(+), 83 deletions(-)