[RFC PATCH 07/11] hw/acpi: Add ACPI GED support for the sleep event

[Annie Li <annie.li@oracle.com>]

From: Miguel Luis <miguel.luis@oracle.com>

Add support for ACPI GED sleep event on the ACPI device interface so that
HW-reduced systems can enable guests to sleep.

Signed-off-by: Miguel Luis <miguel.luis@oracle.com>
---
 hw/acpi/generic_event_device.c         | 9 +++++++++
 include/hw/acpi/generic_event_device.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index a3d31631fe..97a6f82b35 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -13,6 +13,7 @@
 #include "qapi/error.h"
 #include "hw/acpi/acpi.h"
 #include "hw/acpi/generic_event_device.h"
+#include "hw/acpi/control_method_device.h"
 #include "hw/irq.h"
 #include "hw/mem/pc-dimm.h"
 #include "hw/mem/nvdimm.h"
@@ -25,6 +26,7 @@ static const uint32_t ged_supported_events[] = {
     ACPI_GED_MEM_HOTPLUG_EVT,
     ACPI_GED_PWR_DOWN_EVT,
     ACPI_GED_NVDIMM_HOTPLUG_EVT,
+    ACPI_GED_SLEEP_EVT,
 };
 
 /*
@@ -117,6 +119,11 @@ void build_ged_aml(Aml *table, const char *name, HotplugHandler *hotplug_dev,
                            aml_notify(aml_name("\\_SB.NVDR"),
                                       aml_int(0x80)));
                 break;
+            case ACPI_GED_SLEEP_EVT:
+                aml_append(if_ctx,
+                           aml_notify(aml_name(ACPI_SLEEP_BUTTON_DEVICE),
+                                      aml_int(0x80)));
+                break;
             default:
                 /*
                  * Please make sure all the events in ged_supported_events[]
@@ -284,6 +291,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev)
         sel = ACPI_GED_MEM_HOTPLUG_EVT;
     } else if (ev & ACPI_POWER_DOWN_STATUS) {
         sel = ACPI_GED_PWR_DOWN_EVT;
+    } else if (ev & ACPI_SLEEP_STATUS) {
+        sel = ACPI_GED_SLEEP_EVT;
     } else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) {
         sel = ACPI_GED_NVDIMM_HOTPLUG_EVT;
     } else {
diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h
index ba84ce0214..6186bdf368 100644
--- a/include/hw/acpi/generic_event_device.h
+++ b/include/hw/acpi/generic_event_device.h
@@ -95,6 +95,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED)
 #define ACPI_GED_MEM_HOTPLUG_EVT   0x1
 #define ACPI_GED_PWR_DOWN_EVT      0x2
 #define ACPI_GED_NVDIMM_HOTPLUG_EVT 0x4
+#define ACPI_GED_SLEEP_EVT         0x8
 
 typedef struct GEDState {
     MemoryRegion evt;
-- 
2.34.3