From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754019Ab3GALtK (ORCPT ); Mon, 1 Jul 2013 07:49:10 -0400 Received: from smtp02.citrix.com ([66.165.176.63]:14022 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753989Ab3GALtH (ORCPT ); Mon, 1 Jul 2013 07:49:07 -0400 X-IronPort-AV: E=Sophos;i="4.87,974,1363132800"; d="scan'208";a="32763353" From: Ben Guthro To: Konrad Rzeszutek Wilk , Jan Beulich , "Rafael J . Wysocki" , , , CC: Ben Guthro , , Gang Wei Subject: [PATCH v6 4/5] x86/tboot: Fail extended mode reduced hardware sleep Date: Mon, 1 Jul 2013 07:48:52 -0400 Message-ID: <1372679333-8473-5-git-send-email-benjamin.guthro@citrix.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1372679333-8473-1-git-send-email-benjamin.guthro@citrix.com> References: <1372679333-8473-1-git-send-email-benjamin.guthro@citrix.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.204.241.11] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As tboot currently does not support the reduced hardware sleep interface, fail this extended call. Signed-off-by: Jan Beulich Signed-off-by: Ben Guthro Cc: tboot-devel@lists.sourceforge.net Cc: Gang Wei Reviewed-by: Konrad Rzeszutek Wilk --- arch/x86/kernel/tboot.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c index d578c9c..76c284f 100644 --- a/arch/x86/kernel/tboot.c +++ b/arch/x86/kernel/tboot.c @@ -285,6 +285,12 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control, if (!tboot_enabled()) return 0; + if (extended) + if (WARN(extended,"tboot is not able to suspend on platforms with" + " reduced hardware sleep (ACPIv5). Please contact" + " tboot-devel@lists.sourceforge.net mailing list.")) + return -1; + tboot_copy_fadt(&acpi_gbl_FADT); tboot->acpi_sinfo.pm1a_cnt_val = pm1a_control; tboot->acpi_sinfo.pm1b_cnt_val = pm1b_control; -- 1.7.9.5