From aa2110cb1a7510f9b834adfb39b05d4843a35d35 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 8 Apr 2010 14:34:27 +0800 Subject: ACPI: add boot option acpi=copy_dsdt to fix corrupt DSDT Some BIOS on Toshiba machines corrupt the DSDT, so add a new boot option acpi=copy_dsdt to workaround it. Add warning message to ask users to use this option if corrupt DSDT detected. Also build a DMI blacklist to check it and automatically copy DSDT. https://bugzilla.kernel.org/show_bug.cgi?id=14679 Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/tbutils.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/acpi/acpica') diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 54a8712bae62..a9b105fc2e55 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -373,6 +373,10 @@ void acpi_tb_check_dsdt_header(void) acpi_tb_print_table_header(0, &acpi_gbl_original_dsdt_header); acpi_tb_print_table_header(0, acpi_gbl_DSDT); + ACPI_ERROR((AE_INFO, + "Please send DMI info to linux-acpi@vger.kernel.org\n" + "If system does not work as expected, please boot with acpi=copy_dsdt")); + /* Disable further error messages */ acpi_gbl_original_dsdt_header.length = acpi_gbl_DSDT->length; -- cgit v1.2.2