From: Bob Moore <Robert.Moore@xxxxxxxxx> This urgent patch is cherry picked from ACPICA upstream. It is reported that some platforms fail to boot without this new _OSI string. This change adds this string for Windows 8.1 and Server 2012 R2. Reported-by: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Bob Moore <Robert.Moore@xxxxxxxxx> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> --- utosi.c | 1 + 1 file changed, 1 insertion(+) diff -Nurp linux.before/drivers/acpi/acpica/utosi.c linux.after/drivers/acpi/acpica/utosi.c --- linux.before/drivers/acpi/acpica/utosi.c 2014-02-11 10:02:49.000000000 +0800 +++ linux.after/drivers/acpi/acpica/utosi.c 2014-02-11 10:02:10.000000000 +0800 @@ -74,6 +74,7 @@ static struct acpi_interface_info acpi_d {"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 */ -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html