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d="scan'208";a="157141401" X-DLP: DLP_GlobalPCIDSS To: , , CC: , , Subject: RE: [PATCH AUTOSEL for 4.4 093/167] ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI strings Thread-Topic: [PATCH AUTOSEL for 4.4 093/167] ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI strings Thread-Index: AQHTv5xaTVO5Yc6WFEyJ+eHwrZ3EpqPiKMtA Date: Mon, 26 Mar 2018 07:30:24 +0000 Message-ID: References: <20180319160513.16384-1-alexander.levin@microsoft.com> <20180319160513.16384-93-alexander.levin@microsoft.com> In-Reply-To: <20180319160513.16384-93-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.143.18.86] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: > -----Original Message----- > From: Sasha Levin [mailto:Alexander.Levin@microsoft.com] > Sent: Monday, March 19, 2018 11:07 AM > To: linux-kernel@vger.kernel.org; stable@vger.kernel.org > Cc: Limonciello, Mario ; Bob Moore > ; Erik Schmauss ; Rafael= J . > Wysocki ; Sasha Levin > > Subject: [PATCH AUTOSEL for 4.4 093/167] ACPICA: Recognize the Windows 10 > version 1607 and 1703 OSI strings >=20 > From: Mario Limonciello >=20 > [ Upstream commit bc4d413a819f9d0764a80a55875a5d7e1f4efed4 ] >=20 > ACPICA commit 35a4a3ea723b3066f575e63e5f0116f7ce65e713 >=20 > The public Microsoft document listing recognized OSI strings [1] > shows that these two strings were introduced. > version 1607 / Anniversary Update / "Redstone 1" > version 1703 / Creators Update / "Redstone 2" >=20 > [1] http://download.microsoft.com/download/7/e/7/7e7662cf-cbea-470b-a97e- > ce7ce0d98dc2/winacpi_osi.docx >=20 > Link: https://github.com/acpica/acpica/commit/35a4a3ea > Signed-off-by: Mario Limonciello > Signed-off-by: Bob Moore > Signed-off-by: Erik Schmauss > Signed-off-by: Rafael J. Wysocki > Signed-off-by: Sasha Levin > --- > drivers/acpi/acpica/utosi.c | 2 ++ > include/acpi/actypes.h | 2 ++ > 2 files changed, 4 insertions(+) >=20 > diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c > index 8f3d203aed79..51d9011b5b33 100644 > --- a/drivers/acpi/acpica/utosi.c > +++ b/drivers/acpi/acpica/utosi.c > @@ -101,6 +101,8 @@ static struct acpi_interface_info > acpi_default_supported_interfaces[] =3D { > {"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 */ > {"Windows 2015", NULL, 0, ACPI_OSI_WIN_10}, /* Windows 10 - Added > 03/2015 */ > + {"Windows 2016", NULL, 0, ACPI_OSI_WIN_10_RS1}, /* Windows 10 > version 1607 - Added 12/2017 */ > + {"Windows 2017", NULL, 0, ACPI_OSI_WIN_10_RS2}, /* Windows 10 > version 1703 - Added 12/2017 */ >=20 > /* Feature Group Strings */ >=20 > diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h > index f914958c4adb..d27bc051f47f 100644 > --- a/include/acpi/actypes.h > +++ b/include/acpi/actypes.h > @@ -1284,6 +1284,8 @@ typedef enum { > #define ACPI_OSI_WIN_7 0x0B > #define ACPI_OSI_WIN_8 0x0C > #define ACPI_OSI_WIN_10 0x0D > +#define ACPI_OSI_WIN_10_RS1 0x0E > +#define ACPI_OSI_WIN_10_RS2 0x0F >=20 > /* Definitions of file IO */ >=20 > -- > 2.14.1 I don't believe that it would be a good idea to bring back this patch to ke= rnels older than 4.15. These strings do activate some extra features in Windows and so= me BIOS ASL has been written to only activate them when the newer Windows versions = are detected. I have no concerns bringing them to 4.15 though. Bringing them back to stable may introduce other problems that requires bac= kporting additional driver changes too.