diff --git a/[refs] b/[refs]
index df145d79a267..74c124470fbf 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e3fe0913b8e732ae636cf23afca76cf2c30718e5
+refs/heads/master: eb752552464dbb7a99f8a975ec3b9355893cedd4
diff --git a/trunk/drivers/acpi/acpica/aclocal.h b/trunk/drivers/acpi/acpica/aclocal.h
index ff6689eba917..81e64f478679 100644
--- a/trunk/drivers/acpi/acpica/aclocal.h
+++ b/trunk/drivers/acpi/acpica/aclocal.h
@@ -898,6 +898,9 @@ struct acpi_bit_register_info {
 #define ACPI_OSI_WIN_XP_SP2             0x05
 #define ACPI_OSI_WINSRV_2003_SP1        0x06
 #define ACPI_OSI_WIN_VISTA              0x07
+#define ACPI_OSI_WINSRV_2008            0x08
+#define ACPI_OSI_WIN_VISTA_SP1          0x09
+#define ACPI_OSI_WIN_7                  0x0A
 
 #define ACPI_ALWAYS_ILLEGAL             0x00
 
diff --git a/trunk/drivers/acpi/acpica/uteval.c b/trunk/drivers/acpi/acpica/uteval.c
index 5503307b8bb7..5d54e36ab453 100644
--- a/trunk/drivers/acpi/acpica/uteval.c
+++ b/trunk/drivers/acpi/acpica/uteval.c
@@ -69,6 +69,9 @@ static struct acpi_interface_info acpi_interfaces_supported[] = {
 	{"Windows 2001 SP2", ACPI_OSI_WIN_XP_SP2},	/* Windows XP SP2 */
 	{"Windows 2001.1 SP1", ACPI_OSI_WINSRV_2003_SP1},	/* Windows Server 2003 SP1 - Added 03/2006 */
 	{"Windows 2006", ACPI_OSI_WIN_VISTA},	/* Windows Vista - Added 03/2006 */
+	{"Windows 2006.1", ACPI_OSI_WINSRV_2008},	/* Windows Server 2008 - Added 09/2009 */
+	{"Windows 2006 SP1", ACPI_OSI_WIN_VISTA_SP1},	/* Windows Vista SP1 - Added 09/2009 */
+	{"Windows 2009", ACPI_OSI_WIN_7},	/* Windows 7 and Server 2008 R2 - Added 09/2009 */
 
 	/* Feature Group Strings */