From patchwork Thu Aug 11 03:09:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaojuan Yang X-Patchwork-Id: 12941107 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 C011FC00140 for ; Thu, 11 Aug 2022 03:17:38 +0000 (UTC) Received: from localhost ([::1]:44896 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oLyhV-0004kE-U5 for qemu-devel@archiver.kernel.org; Wed, 10 Aug 2022 23:17:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37654) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oLyaE-0003CD-Ki for qemu-devel@nongnu.org; Wed, 10 Aug 2022 23:10:06 -0400 Received: from mail.loongson.cn ([114.242.206.163]:60642 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oLyaC-0006Bd-3p for qemu-devel@nongnu.org; Wed, 10 Aug 2022 23:10:06 -0400 Received: from localhost.localdomain (unknown [10.2.5.185]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxzyP9cvRi8RcNAA--.8789S7; Thu, 11 Aug 2022 11:09:52 +0800 (CST) From: Xiaojuan Yang To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, gaosong@loongson.cn, maobibo@loongson.cn, mark.cave-ayland@ilande.co.uk, mst@redhat.com, imammedo@redhat.com, ani@anisinha.ca, f4bug@amsat.org, peter.maydell@linaro.org Subject: [PATCH v1 5/6] hw/loongarch: Add hotplug handler for machine Date: Thu, 11 Aug 2022 11:09:47 +0800 Message-Id: <20220811030948.2994206-6-yangxiaojuan@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220811030948.2994206-1-yangxiaojuan@loongson.cn> References: <20220811030948.2994206-1-yangxiaojuan@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf9DxzyP9cvRi8RcNAA--.8789S7 X-Coremail-Antispam: 1UD129KBjvJXoW7AFW3JF13GFW5Cw4kuFyfJFb_yoW8tF47pF y7ZFyFyr48WFs2ga9xA3s8WF15Crs3uay2qFs2yrsaka4DWr98Wry8A34qvay8J3yDJF1F qrn5Jay7Wa15Kw7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: p1dqw5xldry3tdq6z05rqj20fqof0/ Received-SPF: pass client-ip=114.242.206.163; envelope-from=yangxiaojuan@loongson.cn; helo=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_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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" Add hotplug handler for LoongArch virt machine and now only support the dynamic sysbus device. Signed-off-by: Xiaojuan Yang --- hw/loongarch/virt.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 3976e8a058..a3dd35d579 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -804,9 +804,35 @@ static void loongarch_machine_initfn(Object *obj) lams->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); } +static void loongarch_machine_device_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + LoongArchMachineState *lams = LOONGARCH_MACHINE(hotplug_dev); + MachineClass *mc = MACHINE_GET_CLASS(lams); + + if (device_is_dynamic_sysbus(mc, dev)) { + if (lams->platform_bus_dev) { + platform_bus_link_device(PLATFORM_BUS_DEVICE(lams->platform_bus_dev), + SYS_BUS_DEVICE(dev)); + } + } +} + +static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, + DeviceState *dev) +{ + MachineClass *mc = MACHINE_GET_CLASS(machine); + + if (device_is_dynamic_sysbus(mc, dev)) { + return HOTPLUG_HANDLER(machine); + } + return NULL; +} + static void loongarch_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); mc->desc = "Loongson-3A5000 LS7A1000 machine"; mc->init = loongarch_init; @@ -819,6 +845,8 @@ static void loongarch_class_init(ObjectClass *oc, void *data) mc->block_default_type = IF_VIRTIO; mc->default_boot_order = "c"; mc->no_cdrom = 1; + mc->get_hotplug_handler = virt_machine_get_hotplug_handler; + hc->plug = loongarch_machine_device_plug_cb; object_class_property_add(oc, "acpi", "OnOffAuto", loongarch_get_acpi, loongarch_set_acpi, @@ -834,6 +862,10 @@ static const TypeInfo loongarch_machine_types[] = { .instance_size = sizeof(LoongArchMachineState), .class_init = loongarch_class_init, .instance_init = loongarch_machine_initfn, + .interfaces = (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + }, } };