[Qemu-devel] [RFC PATCH v1 2/4] Add event handling for memory device insertion.

[Tang Chen <tangchen@cn.fujitsu.com>]

Define device insertion OST event and status, and add a function to
handle memory insertion.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
---
 hw/acpi/memory_hotplug.c | 18 ++++++++++++++++++
 include/hw/acpi/acpi.h   | 10 +++++++++-
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c
index 1b21191..fddb0fd 100644
--- a/hw/acpi/memory_hotplug.c
+++ b/hw/acpi/memory_hotplug.c
@@ -85,6 +85,20 @@ static uint64_t acpi_memory_hotplug_read(void *opaque, hwaddr addr,
     return val;
 }
 
+static void acpi_handle_insert(MemStatus *mdev)
+{
+    switch (mdev->ost_status) {
+    case ACPI_SUCCESS:
+    case ACPI_FAILURE:
+    case ACPI_UNRECOGNIZED_NOTIFY:
+    case ACPI_INSERT_DRIVER_LOAD_FAILURE:
+    case ACPI_INSERT_NOT_SUPPORTED:
+    case ACPI_INSERT_IN_PROGRESS:
+    default:
+        break;
+    }
+}
+
 static void acpi_handle_eject(MemStatus *mdev)
 {
     switch (mdev->ost_status) {
@@ -121,6 +135,10 @@ static void acpi_handle_eject(MemStatus *mdev)
 static void acpi_handle_ost_event(MemStatus *mdev)
 {
     switch (mdev->ost_event) {
+    case ACPI_NOTIFY_DEVICE_CHECK:
+    case ACPI_OSPM_INSERT:
+        acpi_handle_insert(mdev);
+        break;
     case ACPI_NOTIFY_EJECT_REQUEST:    /* Ejection triggered by hardware. */
     case ACPI_OSPM_EJECT:              /* Ejection triggered by guest OS. */
         acpi_handle_eject(mdev);
diff --git a/include/hw/acpi/acpi.h b/include/hw/acpi/acpi.h
index e8499f6..ad706d8 100644
--- a/include/hw/acpi/acpi.h
+++ b/include/hw/acpi/acpi.h
@@ -93,21 +93,29 @@
 
 /* OST_EVENT */
 #define ACPI_OSPM_EJECT                         0x103
+#define ACPI_OSPM_INSERT                        0x200
 
 /* NOTIFY_EVENT */
 #define ACPI_NOTIFY_DEVICE_CHECK                0x1
 #define ACPI_NOTIFY_EJECT_REQUEST               0x3
 
-/* OST_STATUS */
+/* general processing OST_STATUS */
 #define ACPI_SUCCESS                            0x0
 #define ACPI_FAILURE                            0x1
 #define ACPI_UNRECOGNIZED_NOTIFY                0x2
+
+/* ejection processing OST_STATUS */
 #define ACPI_EJECT_NOT_SUPPORTED                0x80
 #define ACPI_EJECT_DEVICE_IN_USE                0x81
 #define ACPI_EJECT_DEVICE_BUSY                  0x82
 #define ACPI_EJECT_DEPENDENCY_BUSY              0x83
 #define ACPI_EJECT_IN_PROGRESS                  0x84
 
+/* insertion processing OST_STATUS */
+#define ACPI_INSERT_IN_PROGRESS                 0x80
+#define ACPI_INSERT_DRIVER_LOAD_FAILURE         0x81
+#define ACPI_INSERT_NOT_SUPPORTED               0x82
+
 /* structs */
 typedef struct ACPIPMTimer ACPIPMTimer;
 typedef struct ACPIPM1EVT ACPIPM1EVT;
-- 
1.8.4.2