diff --git a/libpldm/bios_table.h b/libpldm/bios_table.h
index 3d17f3c..0b20109 100644
--- a/libpldm/bios_table.h
+++ b/libpldm/bios_table.h
@@ -91,6 +91,30 @@
 int pldm_bios_table_attr_entry_enum_decode_def_num_check(
     const struct pldm_bios_attr_table_entry *entry, uint8_t *def_num);
 
+/** @brief Get possible values string handles
+ *  @param[in] entry - Pointer to bios attribute table entry
+ *  @param[out] pv_hdls - Pointer to a buffer to stroe
+ * PossibleValuesStringHandles
+ *  @param[in] pv_num - Number of PossibleValuesStringHandles expected
+ *  @return pldm_completion_codes
+ */
+uint8_t pldm_bios_table_attr_entry_enum_decode_pv_hdls(
+    const struct pldm_bios_attr_table_entry *entry, uint16_t *pv_hdls,
+    uint8_t pv_num);
+
+/** @brief Get possible values string handles and check the validity of the
+ * parameters
+ *  @param[in] entry - Pointer to bios attribute table entry
+ *  @param[out] pv_hdls - Pointer to a buffer to stroe
+ * PossibleValuesStringHandles
+ *  @param[in] pv_num - Number of PossibleValuesStringHandles the buffer can
+ * stroe
+ *  @return Number of PossibleValuesStringHandles decoded
+ */
+int pldm_bios_table_attr_entry_enum_decode_pv_hdls_check(
+    const struct pldm_bios_attr_table_entry *entry, uint16_t *pv_hdls,
+    uint8_t pv_num);
+
 /** @brief Get the length of default string in bytes for the entry
  *  @param[in] entry - Pointer to bios attribute table entry
  *  @return length of default string in bytes
@@ -108,6 +132,83 @@
     const struct pldm_bios_attr_table_entry *entry,
     uint16_t *def_string_length);
 
+/** @brief Get length that an attribute value entry(type: enum) will take
+ *  @param[in] count - Total number of current values for this enumeration
+ *  @return The length that an entry(type: enum) will take
+ */
+size_t pldm_bios_table_attr_value_entry_encode_enum_length(uint8_t count);
+
+/** @brief Create an attribute value entry(type: enum)
+ *  @param[out] entry - Pointer to bios attribute value entry
+ *  @param[in] entry_length - Length of attribute value entry
+ *  @param[in] attr_handle - This handle points to an attribute in the
+ *  BIOS Attribute Vlaue Table.
+ *  @param[in] attr_type - Type of this attribute in the BIOS Attribute Value
+ * Table
+ *  @param[in] count - Total number of current values for this enum attribute
+ *  @param[in] handle_indexes - Index into the array(provided in the BIOS
+ * Attribute Table) of the possible values of string handles for this attribute.
+ */
+void pldm_bios_table_attr_value_entry_encode_enum(
+    void *entry, size_t entry_length, uint16_t attr_handle, uint8_t attr_type,
+    uint8_t count, uint8_t *handle_indexes);
+
+/** @brief Create an attribute value entry(type: enum) and check the validity of
+ * the parameters
+ *  @param[out] entry - Pointer to bios attribute value entry
+ *  @param[in] entry_length - Length of attribute value entry
+ *  @param[in] attr_handle - This handle points to an attribute in the
+ *  BIOS Attribute Vlaue Table.
+ *  @param[in] attr_type - Type of this attribute in the BIOS Attribute Value
+ * Table
+ *  @param[in] count - Total number of current values for this enum attribute
+ *  @param[in] handle_indexes - Index into the array(provided in the BIOS
+ * Attribute Table) of the possible values of string handles for this attribute.
+ *  @return pldm_completion_codes
+ */
+int pldm_bios_table_attr_value_entry_encode_enum_check(
+    void *entry, size_t entry_length, uint16_t attr_handle, uint8_t attr_type,
+    uint8_t count, uint8_t *handle_indexes);
+
+/** @brief Get length that an attribute value entry(type: string) will take
+ *  @param[in] string_length - Length of the current string in byte, 0 indicates
+ *  that the current string value is not set.
+ *  @return The length that an entry(type: string) will take
+ */
+size_t
+pldm_bios_table_attr_value_entry_encode_string_length(uint16_t string_length);
+
+/** @brief Create an attribute value entry(type: string)
+ *  @param[out] entry - Pointer to bios attribute value entry
+ *  @param[in] entry_length - Length of attribute value entry
+ *  @param[in] attr_handle - This handle points to an attribute in the
+ *  BIOS Attribute Vlaue Table.
+ *  @param[in] attr_type - Type of this attribute in the BIOS Attribute Value
+ * Table
+ *  @param[in] string_length - Length of current string in bytes. 0 indicates
+ * that the current string value is not set.
+ *  @param[in] string - The current string itsel
+ */
+void pldm_bios_table_attr_value_entry_encode_string(
+    void *entry, size_t entry_length, uint16_t attr_handle, uint8_t attr_type,
+    uint16_t string_length, const char *string);
+/** @brief Create an attribute value entry(type: string) and check the validity
+ * of the parameters
+ *  @param[out] entry - Pointer to bios attribute value entry
+ *  @param[in] entry_length - Length of attribute value entry
+ *  @param[in] attr_handle - This handle points to an attribute in the
+ *  BIOS Attribute Vlaue Table.
+ *  @param[in] attr_type - Type of this attribute in the BIOS Attribute Value
+ * Table
+ *  @param[in] string_length - Length of current string in bytes. 0 indicates
+ * that the current string value is not set.
+ *  @param[in] string - The current string itsel
+ *  @return pldm_completion_codes
+ */
+int pldm_bios_table_attr_value_entry_encode_string_check(
+    void *entry, size_t entry_length, uint16_t attr_handle, uint8_t attr_type,
+    uint16_t string_length, const char *string);
+
 #ifdef __cplusplus
 }
 #endif