utosi.c revision 7b1019a6d29ccb7999dc76cba3dde1c627e8e609
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/******************************************************************************
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Module Name: utosi - Support for the _OSI predefined control method
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *****************************************************************************/
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Copyright (C) 2000 - 2016, Intel Corp.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * All rights reserved.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Redistribution and use in source and binary forms, with or without
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * modification, are permitted provided that the following conditions
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 1. Redistributions of source code must retain the above copyright
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * notice, this list of conditions, and the following disclaimer,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * without modification.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 2. Redistributions in binary form must reproduce at minimum a disclaimer
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * substantially similar to the "NO WARRANTY" disclaimer below
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * ("Disclaimer") and any redistribution must be conditioned upon
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * including a substantially similar Disclaimer requirement for further
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * binary redistribution.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 3. Neither the names of the above-listed copyright holders nor the names
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * of any contributors may be used to endorse or promote products derived
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * from this software without specific prior written permission.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Alternatively, this software may be distributed under the terms of the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * GNU General Public License ("GPL") version 2 as published by the Free
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Software Foundation.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * NO WARRANTY
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * POSSIBILITY OF SUCH DAMAGES.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/******************************************************************************
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * ACPICA policy for new _OSI strings:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * It is the stated policy of ACPICA that new _OSI strings will be integrated
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * into this module as soon as possible after they are defined. It is strongly
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * recommended that all ACPICA hosts mirror this policy and integrate any
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * changes to this module as soon as possible. There are several historical
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * reasons behind this policy:
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 1) New BIOSs tend to test only the case where the host responds TRUE to
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * the latest version of Windows, which would respond to the latest/newest
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * _OSI string. Not responding TRUE to the latest version of Windows will
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * risk executing untested code paths throughout the DSDT and SSDTs.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 2) If a new _OSI string is recognized only after a significant delay, this
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * has the potential to cause problems on existing working machines because
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * of the possibility that a new and different path through the ASL code
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * will be executed.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * 3) New _OSI strings are tending to come out about once per year. A delay
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * in recognizing a new string for a significant amount of time risks the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * release of another string which only compounds the initial problem.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *****************************************************************************/
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Strings supported by the _OSI predefined control method (which is
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * implemented internally within this module.)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * March 2009: Removed "Linux" as this host no longer wants to respond true
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * for this string. Basically, the only safe OS strings are windows-related
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * and in many or most cases represent the only test path within the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * BIOS-provided ASL code.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * The last element of each entry is used to track the newest version of
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Windows that the BIOS has requested.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Fortestatic ACPI_INTERFACE_INFO AcpiDefaultSupportedInterfaces[] =
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte /* Operating System Vendor Strings */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2000", NULL, 0, ACPI_OSI_WIN_2000}, /* Windows 2000 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2001", NULL, 0, ACPI_OSI_WIN_XP}, /* Windows XP */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2001 SP1", NULL, 0, ACPI_OSI_WIN_XP_SP1}, /* Windows XP SP1 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2001.1", NULL, 0, ACPI_OSI_WINSRV_2003}, /* Windows Server 2003 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2001 SP2", NULL, 0, ACPI_OSI_WIN_XP_SP2}, /* Windows XP SP2 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2001.1 SP1", NULL, 0, ACPI_OSI_WINSRV_2003_SP1}, /* Windows Server 2003 SP1 - Added 03/2006 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2006", NULL, 0, ACPI_OSI_WIN_VISTA}, /* Windows Vista - Added 03/2006 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2006.1", NULL, 0, ACPI_OSI_WINSRV_2008}, /* Windows Server 2008 - Added 09/2009 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1}, /* Windows Vista SP1 - Added 09/2009 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2}, /* Windows Vista SP2 - Added 09/2010 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * The following OSes are temporarily disabled. Windows introduced
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * support for xhci (USB 3.0) in Windows 8. When we advertise Windows 8
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * and newer support, some vendors use that as a key to automatically
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * transition all USB ports to the xhci controller. Until we have
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * support for the xhci controller, we should not advertise these
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * operating systems. From a brief survey, there isn't too much other
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * AML that this impacts at this time.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/* {"Windows 2012", NULL, 0, ACPI_OSI_WIN_8},*/ /* Windows 8 and Server 2012 - Added 08/2012 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/* {"Windows 2013", NULL, 0, ACPI_OSI_WIN_8},*/ /* Windows 8.1 and Server 2012 R2 - Added 01/2014 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/* {"Windows 2015", NULL, 0, ACPI_OSI_WIN_10},*/ /* Windows 10 - Added 03/2015 */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte /* Feature Group Strings */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Extended Address Space Descriptor", NULL, ACPI_OSI_FEATURE, 0},
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * All "optional" feature group strings (features that are implemented
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * by the host) should be dynamically modified to VALID by the host via
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * AcpiInstallInterface or AcpiUpdateInterfaces. Such optional feature
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * group strings are set as INVALID by default here.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Module Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Processor Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"3.0 Thermal Model", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"3.0 _SCP Extensions", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte {"Processor Aggregator Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*******************************************************************************
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * FUNCTION: AcpiUtInitializeInterfaces
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * PARAMETERS: None
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * RETURN: Status
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * DESCRIPTION: Initialize the global _OSI supported interfaces list
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte ******************************************************************************/
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte AcpiGbl_SupportedInterfaces = AcpiDefaultSupportedInterfaces;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte /* Link the static list of supported interfaces */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte i < (ACPI_ARRAY_LENGTH (AcpiDefaultSupportedInterfaces) - 1);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte &AcpiDefaultSupportedInterfaces[(ACPI_SIZE) i + 1];
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*******************************************************************************
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * FUNCTION: AcpiUtInterfaceTerminate
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * PARAMETERS: None
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * RETURN: Status
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * DESCRIPTION: Delete all interfaces in the global list. Sets
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * AcpiGbl_SupportedInterfaces to NULL.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte ******************************************************************************/
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte AcpiGbl_SupportedInterfaces = NextInterface->Next;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte /* Only interfaces added at runtime can be freed */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte /* Interface is in static list. Reset it to invalid or valid. */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte if (NextInterface->Flags & ACPI_OSI_DEFAULT_INVALID)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*******************************************************************************
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * FUNCTION: AcpiUtInstallInterface
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * PARAMETERS: InterfaceName - The interface to install
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * RETURN: Status
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * DESCRIPTION: Install the interface into the global interface list.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Caller MUST hold AcpiGbl_OsiMutex
if (!InterfaceInfo)
return (AE_NO_MEMORY);
return (AE_NO_MEMORY);
return (AE_OK);
while (NextInterface)
return (AE_NOT_EXIST);
return (AE_OK);
return (AE_NOT_EXIST);
while (NextInterface)
return (AE_OK);
while (NextInterface)
return (NextInterface);
return (NULL);
if (!StringDesc ||
if (!ReturnDesc)
ReturnValue = 0;
if (InterfaceInfo &&
if (InterfaceHandler)