From: Samuel Ortiz <sa...@linux.intel.com>
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 <sa...@linux.intel.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.th...@huawei.com>
---
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-$(CONFIG_ACPI_MEMORY_HOTPLUG) += memory_hotplug.o
common-obj-$(CONFIG_ACPI_CPU_HOTPLUG) += cpu.o
common-obj-$(CONFIG_ACPI_NVDIMM) += nvdimm.o
common-obj-$(CONFIG_ACPI_VMGENID) += vmgenid.o
+common-obj-$(CONFIG_ACPI_HW_REDUCED) += generic_event_device.o
common-obj-$(call lnot,$(CONFIG_ACPI_X86)) += acpi-stub.o
common-obj-y += 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 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 "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[] = {
+ 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->props = virt_acpi_properties;
+ dc->realize = virt_device_realize;
+
+ hc->plug = virt_device_plug_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/acpi/generic_event_device.h
b/include/hw/acpi/generic_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 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/>.
+ */
+
+#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
--
2.7.4
