From patchwork Tue Sep 12 02:11:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Xianglai Li X-Patchwork-Id: 13380503 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 65F35CA0ECB for ; Tue, 12 Sep 2023 02:13:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qfstE-0001GO-DY; Mon, 11 Sep 2023 22:12:32 -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 1qfst5-0001Ev-GM for qemu-devel@nongnu.org; Mon, 11 Sep 2023 22:12:24 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qfssy-0005QR-UH for qemu-devel@nongnu.org; Mon, 11 Sep 2023 22:12:21 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8BxnuvuyP9k3jElAA--.4740S3; Tue, 12 Sep 2023 10:11:58 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxfSPqyP9kCnh4AA--.42014S2; Tue, 12 Sep 2023 10:11:55 +0800 (CST) From: xianglai li To: qemu-devel@nongnu.org Cc: "Salil Mehta" , Xiaojuan Yang , Song Gao , "Michael S. Tsirkin" , Igor Mammedov , Ani Sinha , Paolo Bonzini , Richard Henderson , Eduardo Habkost , Marcel Apfelbaum , =?utf-8?q?Philippe_Mathieu-D?= =?utf-8?q?aud=C3=A9?= , Yanan Wang , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Peter Xu , David Hildenbrand , Bibo Mao , Xianglai li Subject: [PATCH v2 00/10] Adds CPU hot-plug support to Loongarch Date: Tue, 12 Sep 2023 10:11:37 +0800 Message-Id: X-Mailer: git-send-email 2.39.1 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxfSPqyP9kCnh4AA--.42014S2 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 4 patches are changes to the QEMU common code, including adding GED support for CPU Hot-Plug, updating the ACPI table creation process, and adding qdev_disconnect_gpio_out_named and cpu_address_space_destroy interfaces to release resources when CPU un-plug. 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/ In order to respect the work of "Salil Mehta", we will rebase the first 4 patches in the final patch, which are referenced here to ensure that the loongarch cpu hotplug can work properly. The last 6 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. 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 (10): Update ACPI GED framework to support vcpu hot-(un)plug Update CPUs AML with cpu-(ctrl)dev change make qdev_disconnect_gpio_out_named() public Introduce the CPU address space destruction function 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 Add generic event device for Loongarch 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/core/gpio.c | 4 +- hw/i386/acpi-build.c | 2 +- hw/loongarch/acpi-build.c | 33 +- hw/loongarch/generic_event_device_loongarch.c | 36 ++ hw/loongarch/meson.build | 2 +- hw/loongarch/virt.c | 424 +++++++++++++++--- include/exec/cpu-common.h | 8 + include/hw/acpi/cpu.h | 5 +- include/hw/acpi/cpu_hotplug.h | 10 + include/hw/acpi/generic_event_device.h | 6 + include/hw/core/cpu.h | 1 + include/hw/loongarch/virt.h | 10 +- include/hw/qdev-core.h | 2 + softmmu/physmem.c | 24 + target/loongarch/cpu.c | 35 +- target/loongarch/cpu.h | 13 +- 21 files changed, 635 insertions(+), 87 deletions(-) create mode 100644 hw/loongarch/generic_event_device_loongarch.c Cc: "Salil Mehta" Cc: Xiaojuan Yang Cc: Song Gao Cc: "Michael S. Tsirkin" Cc: Igor Mammedov Cc: Ani Sinha Cc: Paolo Bonzini Cc: Richard Henderson Cc: Eduardo Habkost Cc: Marcel Apfelbaum Cc: "Philippe Mathieu-Daudé" Cc: Yanan Wang Cc: "Daniel P. Berrangé" Cc: Peter Xu Cc: David Hildenbrand Cc: Bibo Mao Cc: Xianglai li --- 2.39.1