diff options
Diffstat (limited to 'drivers/acpi/acpica/utosi.c')
| -rw-r--r-- | drivers/acpi/acpica/utosi.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c index 8856bd37bc7..685766fc6ca 100644 --- a/drivers/acpi/acpica/utosi.c +++ b/drivers/acpi/acpica/utosi.c @@ -5,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -47,6 +47,31 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utosi") +/****************************************************************************** + * + * ACPICA policy for new _OSI strings: + * + * It is the stated policy of ACPICA that new _OSI strings will be integrated + * into this module as soon as possible after they are defined. It is strongly + * recommended that all ACPICA hosts mirror this policy and integrate any + * changes to this module as soon as possible. There are several historical + * reasons behind this policy: + * + * 1) New BIOSs tend to test only the case where the host responds TRUE to + * the latest version of Windows, which would respond to the latest/newest + * _OSI string. Not responding TRUE to the latest version of Windows will + * risk executing untested code paths throughout the DSDT and SSDTs. + * + * 2) If a new _OSI string is recognized only after a significant delay, this + * has the potential to cause problems on existing working machines because + * of the possibility that a new and different path through the ASL code + * will be executed. + * + * 3) New _OSI strings are tending to come out about once per year. A delay + * in recognizing a new string for a significant amount of time risks the + * release of another string which only compounds the initial problem. + * + *****************************************************************************/ /* * Strings supported by the _OSI predefined control method (which is * implemented internally within this module.) @@ -74,6 +99,7 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = { {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2}, /* Windows Vista SP2 - Added 09/2010 */ {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */ {"Windows 2012", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8 and Server 2012 - Added 08/2012 */ + {"Windows 2013", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8.1 and Server 2012 R2 - Added 01/2014 */ /* Feature Group Strings */ |