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-rw-r--r--drivers/acpi/acpica/tbxface.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 30565100b94..f5378fc302b 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -532,6 +532,16 @@ static acpi_status acpi_tb_load_namespace(void)
}
/*
+ * Optionally copy the entire DSDT to local memory (instead of simply
+ * mapping it.) There are some BIOSs that corrupt or replace the original
+ * DSDT, creating the need for this option. Default is FALSE, do not copy
+ * the DSDT.
+ */
+ if (acpi_gbl_copy_dsdt_locally) {
+ acpi_tb_copy_dsdt(acpi_gbl_DSDT);
+ }
+
+ /*
* Save the original DSDT header for detection of table corruption
* and/or replacement of the DSDT from outside the OS.
*/