AcpiEnable will now fail if all of the required ACPI tables are not
loaded (FADT, FACS, DSDT). BZ 477
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
ACPI_FUNCTION_TRACE(acpi_enable);
+ /* ACPI tables must be present */
+
+ if (!acpi_tb_tables_loaded()) {
+ return_ACPI_STATUS(AE_NO_ACPI_TABLES);
+ }
+
+ /* Check current mode */
+
if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
ACPI_DEBUG_PRINT((ACPI_DB_INIT,
"System is already in ACPI mode\n"));
/*******************************************************************************
*
+ * FUNCTION: acpi_tb_tables_loaded
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: TRUE if required ACPI tables are loaded
+ *
+ * DESCRIPTION: Determine if the minimum required ACPI tables are present
+ * (FADT, FACS, DSDT)
+ *
+ ******************************************************************************/
+
+u8 acpi_tb_tables_loaded(void)
+{
+
+ if (acpi_gbl_root_table_list.count >= 3) {
+ return (TRUE);
+ }
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_tb_print_table_header
*
* PARAMETERS: Address - Table physical address
/*
* tbutils - table manager utilities
*/
+u8 acpi_tb_tables_loaded(void);
+
void
acpi_tb_print_table_header(acpi_physical_address address,
struct acpi_table_header *header);