diff --git a/src/cpu/x86/smm/smm_module_loaderv2.c b/src/cpu/x86/smm/smm_module_loaderv2.c
diff --git a/src/include/cpu/x86/smm.h b/src/include/cpu/x86/smm.h
@@ -128,6 +128,12 @@ static inline bool smm_points_to_smram(const void *ptr, const size_t len)
  *             into this field so the code doing the loading can manipulate the
  *             runtime's assumptions. e.g. updating the APIC id to CPU map to
  *             handle sparse APIC id space.
+ * The following parameters are only used when X86_SMM_LOADER_VERSION2 is enabled.
+ * - smm_entry - entry address of first CPU thread, all others will be tiled
+ *               below this address.
+ * - smm_main_entry_offset - default entry offset (e.g 0x8000)
+ * - smram_start - smaram starting address
+ * - smram_end - smram ending address
  */
 struct smm_loader_params {
 	void *stack_top;
@@ -141,12 +147,24 @@ struct smm_loader_params {
 	void *handler_arg;
 
 	struct smm_runtime *runtime;
+
+	/* The following are only used by X86_SMM_LOADER_VERSION2 */
+#if CONFIG(X86_SMM_LOADER_VERSION2)
+	unsigned int smm_entry;
+	unsigned int smm_main_entry_offset;
+	unsigned int smram_start;
+	unsigned int smram_end;
+#endif
 };
 
 /* Both of these return 0 on success, < 0 on failure. */
 int smm_setup_relocation_handler(struct smm_loader_params *params);
 int smm_load_module(void *smram, size_t size, struct smm_loader_params *params);
 
+#if CONFIG(X86_SMM_LOADER_VERSION2)
+u32 smm_get_cpu_smbase(unsigned int cpu_num);
+#endif
+
 /* Backup and restore default SMM region. */
 void *backup_default_smm_area(void);
 void restore_default_smm_area(void *smm_save_area);