diff options
| author | Lin Ming <ming.m.lin@intel.com> | 2010-04-01 11:14:12 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-04-20 10:43:16 -0400 |
| commit | 69ec87efa815d69140423014bb5f91e034faac22 (patch) | |
| tree | 4619ef009c68e1061c41e6081b7967da67974970 /drivers/acpi/acpica/tbxface.c | |
| parent | 729df0f848daf2f17d02107199fa92efe909d995 (diff) | |
ACPICA: Add subsystem option to force copy of DSDT to local memory
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.
https://bugzilla.kernel.org/show_bug.cgi?id=14679
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/tbxface.c')
| -rw-r--r-- | drivers/acpi/acpica/tbxface.c | 10 |
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. */ |