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-rw-r--r--include/efi_variable.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/efi_variable.h b/include/efi_variable.h
index bf5076233e4..4623a641427 100644
--- a/include/efi_variable.h
+++ b/include/efi_variable.h
@@ -306,4 +306,15 @@ efi_status_t __efi_runtime EFIAPI
efi_get_next_variable_name_runtime(efi_uintn_t *variable_name_size,
u16 *variable_name, efi_guid_t *guid);
+/**
+ * efi_var_buf_update() - udpate memory buffer for variables
+ *
+ * @var_buf: source buffer
+ *
+ * This function copies to the memory buffer for UEFI variables. Call this
+ * function in ExitBootServices() if memory backed variables are only used
+ * at runtime to fill the buffer.
+ */
+void efi_var_buf_update(struct efi_var_file *var_buf);
+
#endif