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[Qemu-devel] [PATCH-for-4.2 v7 08/10] hw/acpi: Add system power down sup
From: |
Shameer Kolothum |
Subject: |
[Qemu-devel] [PATCH-for-4.2 v7 08/10] hw/acpi: Add system power down support to GED |
Date: |
Tue, 16 Jul 2019 16:38:14 +0100 |
This adds support to use GED for system power down event.
Signed-off-by: Shameer Kolothum <address@hidden>
Reviewed-by: Eric Auger <address@hidden>
---
hw/acpi/generic_event_device.c | 16 ++++++++++++++++
include/hw/acpi/generic_event_device.h | 4 ++++
2 files changed, 20 insertions(+)
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 2a83d68e82..2bd786b7ab 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -19,6 +19,7 @@
static const uint32_t ged_supported_events[] = {
ACPI_GED_MEM_HOTPLUG_EVT,
+ ACPI_GED_PWR_DOWN_EVT,
};
/*
@@ -103,6 +104,11 @@ void build_ged_aml(Aml *table, const char *name,
HotplugHandler *hotplug_dev,
aml_append(if_ctx, aml_call0(MEMORY_DEVICES_CONTAINER "."
MEMORY_SLOT_SCAN_METHOD));
break;
+ case ACPI_GED_PWR_DOWN_EVT:
+ aml_append(if_ctx,
+ aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE),
+ aml_int(0x80)));
+ break;
default:
/*
* Please make sure all the events in ged_supported_events[]
@@ -232,6 +238,13 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev,
AcpiEventStatusBits ev)
acpi_ged_event(s, sel);
}
+static void acpi_ged_pm_powerdown_req(Notifier *n, void *opaque)
+{
+ AcpiGedState *s = container_of(n, AcpiGedState, powerdown_notifier);
+
+ acpi_ged_event(s, ACPI_GED_PWR_DOWN_EVT);
+}
+
static void acpi_ged_device_realize(DeviceState *dev, Error **errp)
{
AcpiGedState *s = ACPI_GED(dev);
@@ -243,6 +256,9 @@ static void acpi_ged_device_realize(DeviceState *dev, Error
**errp)
}
acpi_ged_init(get_system_memory(), dev, &s->ged_state);
+
+ s->powerdown_notifier.notify = acpi_ged_pm_powerdown_req;
+ qemu_register_powerdown_notifier(&s->powerdown_notifier);
}
static Property acpi_ged_properties[] = {
diff --git a/include/hw/acpi/generic_event_device.h
b/include/hw/acpi/generic_event_device.h
index f69d084c89..9e63b72cb9 100644
--- a/include/hw/acpi/generic_event_device.h
+++ b/include/hw/acpi/generic_event_device.h
@@ -61,6 +61,8 @@
#include "hw/acpi/memory_hotplug.h"
+#define ACPI_POWER_BUTTON_DEVICE "PWRB"
+
#define TYPE_ACPI_GED "acpi-ged"
#define ACPI_GED(obj) \
OBJECT_CHECK(AcpiGedState, (obj), TYPE_ACPI_GED)
@@ -79,6 +81,7 @@
* through GED.
*/
#define ACPI_GED_MEM_HOTPLUG_EVT 0x1
+#define ACPI_GED_PWR_DOWN_EVT 0x2
typedef struct GEDState {
MemoryRegion io;
@@ -88,6 +91,7 @@ typedef struct GEDState {
typedef struct AcpiGedState {
DeviceClass parent_obj;
+ Notifier powerdown_notifier;
MemHotplugState memhp_state;
hwaddr memhp_base;
hwaddr ged_base;
--
2.17.1
[Qemu-devel] [PATCH-for-4.2 v7 08/10] hw/acpi: Add system power down support to GED,
Shameer Kolothum <=