1 files changed, 25 insertions, 0 deletions

diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index 13a3d9ad92d..813e4b6c2c0 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -288,6 +288,31 @@ enum acpi_prefered_pm_profiles {
 
 #define ACPI_FADT_OFFSET(f)             (u8) ACPI_OFFSET (struct acpi_table_fadt, f)
 
+union acpi_name_union {
+        u32 integer;
+        char ascii[4];
+};
+
+/*
+ * Internal ACPI Table Descriptor. One per ACPI table
+ */
+struct acpi_table_desc {
+        acpi_physical_address address;
+        struct acpi_table_header *pointer;
+        u32 length;             /* Length fixed at 32 bits */
+        union acpi_name_union signature;
+        acpi_owner_id owner_id;
+        u8 flags;
+};
+
+/* Flags for above */
+
+#define ACPI_TABLE_ORIGIN_UNKNOWN       (0)
+#define ACPI_TABLE_ORIGIN_MAPPED        (1)
+#define ACPI_TABLE_ORIGIN_ALLOCATED     (2)
+#define ACPI_TABLE_ORIGIN_MASK          (3)
+#define ACPI_TABLE_IS_LOADED            (4)
+
 /*
  * Get the remaining ACPI tables
  */