From: Samuel Ortiz <sa...@linux.intel.com> This is to provide an acpi device interface for Arm/virt. This will be used by Arm/Virt to add hotplug support via ACPI GED device.
Signed-off-by: Samuel Ortiz <sa...@linux.intel.com> Signed-off-by: Shameer Kolothum <shameerali.kolothum.th...@huawei.com> --- hw/arm/Makefile.objs | 2 +- hw/arm/virt-acpi.c | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/hw/arm/virt.h | 1 + 3 files changed, 113 insertions(+), 1 deletion(-) create mode 100644 hw/arm/virt-acpi.c diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs index fa57c7c..e0db3cd 100644 --- a/hw/arm/Makefile.objs +++ b/hw/arm/Makefile.objs @@ -1,6 +1,6 @@ obj-y += boot.o sysbus-fdt.o obj-$(CONFIG_ARM_VIRT) += virt.o -obj-$(CONFIG_ACPI) += virt-acpi-build.o +obj-$(CONFIG_ACPI) += virt-acpi-build.o virt-acpi.o obj-$(CONFIG_DIGIC) += digic_boards.o obj-$(CONFIG_EXYNOS4) += exynos4_boards.o obj-$(CONFIG_HIGHBANK) += highbank.o diff --git a/hw/arm/virt-acpi.c b/hw/arm/virt-acpi.c new file mode 100644 index 0000000..df8a02b --- /dev/null +++ b/hw/arm/virt-acpi.c @@ -0,0 +1,111 @@ +/* + * + * 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 for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "qemu/osdep.h" +#include "qemu/range.h" +#include "qapi/error.h" +#include "exec/address-spaces.h" + +#include "hw/hw.h" +#include "hw/hotplug.h" +#include "hw/sysbus.h" +#include "hw/arm/virt.h" + +#include "hw/acpi/acpi.h" + +typedef struct VirtAcpiState { + SysBusDevice parent_obj; +} VirtAcpiState; + +#define TYPE_VIRT_ACPI "virt-acpi" +#define VIRT_ACPI(obj) \ + OBJECT_CHECK(VirtAcpiState, (obj), TYPE_VIRT_ACPI) + +static const VMStateDescription vmstate_acpi = { + .name = "virt_acpi", + .version_id = 1, + .minimum_version_id = 1, +}; + +static void virt_device_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ +} + +static void virt_device_unplug_request_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ +} + +static void virt_device_unplug_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) +{ +} + +DeviceState *virt_acpi_init(void) +{ + return sysbus_create_simple(TYPE_VIRT_ACPI, -1, NULL); +} + +static Property virt_acpi_properties[] = { + DEFINE_PROP_END_OF_LIST(), +}; + +static void virt_acpi_class_init(ObjectClass *class, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(class); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(class); + AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_CLASS(class); + + dc->desc = "ACPI"; + dc->vmsd = &vmstate_acpi; + dc->props = virt_acpi_properties; + dc->realize = virt_device_realize; + + hc->plug = virt_device_plug_cb; + hc->unplug_request = virt_device_unplug_request_cb; + hc->unplug = virt_device_unplug_cb; + + adevc->send_event = virt_send_ged; +} + +static const TypeInfo virt_acpi_info = { + .name = TYPE_VIRT_ACPI, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(VirtAcpiState), + .class_init = virt_acpi_class_init, + .interfaces = (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/arm/virt.h b/include/hw/arm/virt.h index 507517c..6076167 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -145,6 +145,7 @@ typedef struct { OBJECT_CLASS_CHECK(VirtMachineClass, klass, TYPE_VIRT_MACHINE) void virt_acpi_setup(VirtMachineState *vms); +DeviceState *virt_acpi_init(void); /* Return the number of used redistributor regions */ static inline int virt_gicv3_redist_region_count(VirtMachineState *vms) -- 2.7.4
