1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 30565100b94c..f5378fc302b3 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.
          */