diff --git a/include/acpi/acpi_table.h b/include/acpi/acpi_table.h
index 6fd4c52..55349c0 100644
--- a/include/acpi/acpi_table.h
+++ b/include/acpi/acpi_table.h
@@ -551,6 +551,15 @@
  */
 void acpi_inc_align(struct acpi_ctx *ctx, uint amount);
 
+/**
+ * acpi_add_table() - Add a new table to the RSDP and XSDT
+ *
+ * @ctx: ACPI context
+ * @table: Table to add
+ * @return 0 if OK, -E2BIG if too many tables
+ */
+int acpi_add_table(struct acpi_ctx *ctx, void *table);
+
 #endif /* !__ACPI__*/
 
 #include <asm/acpi_table.h>
diff --git a/include/dm/acpi.h b/include/dm/acpi.h
index 69d69d7..c6c63b8 100644
--- a/include/dm/acpi.h
+++ b/include/dm/acpi.h
@@ -30,9 +30,14 @@
  * This contains a few useful pieces of information used when writing
  *
  * @current: Current address for writing
+ * @rsdp: Pointer to the Root System Description Pointer, typically used when
+ *	adding a new table. The RSDP holds pointers to the RSDT and XSDT.
+ * @rsdt: Pointer to the Root System Description Table
  */
 struct acpi_ctx {
 	void *current;
+	struct acpi_rsdp *rsdp;
+	struct acpi_rsdt *rsdt;
 };
 
 /**