ACPICA: Add detection of corrupted/replaced DSDT
This change adds support to detect a DSDT that has been corrupted
and/or replaced from outside the OS (by firmware). This is
typically catastrophic for the system, but has been seen on
some machines.
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>
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index 8ff3b74..fc52b6f 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -107,6 +107,8 @@
acpi_status
acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length);
+void acpi_tb_check_dsdt_header(void);
+
void
acpi_tb_install_table(acpi_physical_address address,
char *signature, u32 table_index);