diff options
| -rw-r--r-- | Documentation/kernel-parameters.txt | 8 | ||||
| -rw-r--r-- | drivers/acpi/osl.c | 11 |
2 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 7116fda7077f..bf0fda0125f0 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -231,6 +231,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted. acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT + acpica_no_return_repair [HW, ACPI] + Disable AML predefined validation mechanism + This mechanism can repair the evaluation result to make + the return objects more ACPI specification compliant. + This option is useful for developers to identify the + root cause of an AML interpreter issue when the issue + has something to do with the repair mechanism. + acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS Format: To spoof as Windows 98: ="Microsoft Windows" diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index fc1aa7909690..0d7b7145399e 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1780,6 +1780,17 @@ static int __init acpi_no_auto_ssdt_setup(char *s) __setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup); +static int __init acpi_disable_return_repair(char *s) +{ + printk(KERN_NOTICE PREFIX + "ACPI: Predefined validation mechanism disabled\n"); + acpi_gbl_disable_auto_repair = TRUE; + + return 1; +} + +__setup("acpica_no_return_repair", acpi_disable_return_repair); + acpi_status __init acpi_os_initialize(void) { acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1a_event_block); |