acpi: add hardware implementation for memory hot unplug

[mirror_qemu.git] / hw / i386 / acpi-build.c

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 4202d76f93d98a3754786e783665edede7c0d205..967448a1ed05ff3ec32f3ec6de911482a793dd71 100644 (file)
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -879,6 +879,12 @@ build_ssdt(GArray *table_data, GArray *linker,
         aml_append(field,
             /*(read) 1 if has a insert event. (write) 1 to clear event */
             aml_named_field(stringify(MEMORY_SLOT_INSERT_EVENT), 1));
+        aml_append(field,
+            /* (read) 1 if has a remove event. (write) 1 to clear event */
+            aml_named_field(stringify(MEMORY_SLOT_REMOVE_EVENT), 1));
+        aml_append(field,
+            /* initiates device eject, write only */
+            aml_named_field(stringify(MEMORY_SLOT_EJECT), 1));
         aml_append(scope, field);
 
         field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), aml_dword_acc,
@@ -923,6 +929,12 @@ build_ssdt(GArray *table_data, GArray *linker,
             )));
             aml_append(dev, method);
 
+            method = aml_method("_EJ0", 1);
+            s = BASEPATH stringify(MEMORY_SLOT_EJECT_METHOD);
+            aml_append(method, aml_return(aml_call2(
+                       s, aml_name("_UID"), aml_arg(0))));
+            aml_append(dev, method);
+
             aml_append(sb_scope, dev);
         }