From nobody Tue Feb 10 19:17:51 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1553166107323410.6430712485792; Thu, 21 Mar 2019 04:01:47 -0700 (PDT) Received: from localhost ([127.0.0.1]:34882 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h6vSC-0004BS-Cs for importer@patchew.org; Thu, 21 Mar 2019 07:01:44 -0400 Received: from eggs.gnu.org ([209.51.188.92]:46974) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h6vHf-0004Og-O3 for qemu-devel@nongnu.org; Thu, 21 Mar 2019 06:50:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h6vFu-0001pL-Kw for qemu-devel@nongnu.org; Thu, 21 Mar 2019 06:49:04 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:56392 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1h6vFs-0001H6-2p; Thu, 21 Mar 2019 06:49:00 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 9E29957B498EFBCAD080; Thu, 21 Mar 2019 18:48:57 +0800 (CST) Received: from S00345302A-PC.china.huawei.com (10.202.227.237) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.408.0; Thu, 21 Mar 2019 18:48:47 +0800 From: Shameer Kolothum To: , , , , , , , Date: Thu, 21 Mar 2019 10:47:38 +0000 Message-ID: <20190321104745.28068-4-shameerali.kolothum.thodi@huawei.com> X-Mailer: git-send-email 2.12.0.windows.1 In-Reply-To: <20190321104745.28068-1-shameerali.kolothum.thodi@huawei.com> References: <20190321104745.28068-1-shameerali.kolothum.thodi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.202.227.237] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 45.249.212.35 Subject: [Qemu-devel] [PATCH v3 03/10] hw/arm/virt: Add virtual ACPI device X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxarm@huawei.com, xuwei5@hisilicon.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Samuel Ortiz This adds the skeleton to support an acpi device interface for HW-reduced acpi platforms via ACPI GED - Generic Event Device (ACPI v6.1 5.6.9). This will be used by Arm/Virt to add hotplug support. Signed-off-by: Samuel Ortiz Signed-off-by: Shameer Kolothum --- hw/acpi/Kconfig | 4 ++ hw/acpi/Makefile.objs | 1 + hw/acpi/generic_event_device.c | 72 ++++++++++++++++++++++++++++++= ++++ include/hw/acpi/generic_event_device.h | 29 ++++++++++++++ 4 files changed, 106 insertions(+) create mode 100644 hw/acpi/generic_event_device.c create mode 100644 include/hw/acpi/generic_event_device.h diff --git a/hw/acpi/Kconfig b/hw/acpi/Kconfig index eca3bee..01a8b41 100644 --- a/hw/acpi/Kconfig +++ b/hw/acpi/Kconfig @@ -27,3 +27,7 @@ config ACPI_VMGENID bool default y depends on PC + +config ACPI_HW_REDUCED + bool + depends on ACPI diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs index 2d46e37..b753232 100644 --- a/hw/acpi/Makefile.objs +++ b/hw/acpi/Makefile.objs @@ -6,6 +6,7 @@ common-obj-$(CONFIG_ACPI_MEMORY_HOTPLUG) +=3D memory_hotplu= g.o common-obj-$(CONFIG_ACPI_CPU_HOTPLUG) +=3D cpu.o common-obj-$(CONFIG_ACPI_NVDIMM) +=3D nvdimm.o common-obj-$(CONFIG_ACPI_VMGENID) +=3D vmgenid.o +common-obj-$(CONFIG_ACPI_HW_REDUCED) +=3D generic_event_device.o common-obj-$(call lnot,$(CONFIG_ACPI_X86)) +=3D acpi-stub.o =20 common-obj-y +=3D acpi_interface.o diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c new file mode 100644 index 0000000..b21a551 --- /dev/null +++ b/hw/acpi/generic_event_device.c @@ -0,0 +1,72 @@ +/* + * + * Copyright (c) 2018 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License f= or + * more details. + * + * You should have received a copy of the GNU General Public License along= with + * this program. If not, see . + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "hw/acpi/acpi.h" +#include "hw/acpi/generic_event_device.h" + +static void virt_device_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ +} + +static void virt_send_ged(AcpiDeviceIf *adev, AcpiEventStatusBits ev) +{ +} + +static void virt_device_realize(DeviceState *dev, Error **errp) +{ +} + +static Property virt_acpi_properties[] =3D { + DEFINE_PROP_END_OF_LIST(), +}; + +static void virt_acpi_class_init(ObjectClass *class, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(class); + HotplugHandlerClass *hc =3D HOTPLUG_HANDLER_CLASS(class); + AcpiDeviceIfClass *adevc =3D ACPI_DEVICE_IF_CLASS(class); + + dc->desc =3D "ACPI"; + dc->props =3D virt_acpi_properties; + dc->realize =3D virt_device_realize; + + hc->plug =3D virt_device_plug_cb; + + adevc->send_event =3D virt_send_ged; +} + +static const TypeInfo virt_acpi_info =3D { + .name =3D TYPE_VIRT_ACPI, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_size =3D sizeof(VirtAcpiState), + .class_init =3D virt_acpi_class_init, + .interfaces =3D (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { TYPE_ACPI_DEVICE_IF }, + { } + } +}; + +static void virt_acpi_register_types(void) +{ + type_register_static(&virt_acpi_info); +} + +type_init(virt_acpi_register_types) diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/gener= ic_event_device.h new file mode 100644 index 0000000..f314515 --- /dev/null +++ b/include/hw/acpi/generic_event_device.h @@ -0,0 +1,29 @@ +/* + * + * Copyright (c) 2018 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License f= or + * more details. + * + * You should have received a copy of the GNU General Public License along= with + * this program. If not, see . + */ + +#ifndef HW_ACPI_GED_H +#define HW_ACPI_GED_H + +#define TYPE_VIRT_ACPI "virt-acpi" +#define VIRT_ACPI(obj) \ + OBJECT_CHECK(VirtAcpiState, (obj), TYPE_VIRT_ACPI) + +typedef struct VirtAcpiState { + SysBusDevice parent_obj; +} VirtAcpiState; + +#endif --=20 2.7.4