From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 53766C43331 for ; Tue, 29 Dec 2020 21:34:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 29679221F8 for ; Tue, 29 Dec 2020 21:34:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727051AbgL2VeP (ORCPT ); Tue, 29 Dec 2020 16:34:15 -0500 Received: from mga03.intel.com ([134.134.136.65]:11899 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726974AbgL2VeE (ORCPT ); Tue, 29 Dec 2020 16:34:04 -0500 IronPort-SDR: 6ZnXgGnsBBWYlhdFNDNndu6039k0yGsp0TbrpoyzEX+sKaBOR/yDeidgXInuc2Z+Hr/UO7rhDy JyQvHL9OHG0w== X-IronPort-AV: E=McAfee;i="6000,8403,9849"; a="176640552" X-IronPort-AV: E=Sophos;i="5.78,459,1599548400"; d="scan'208";a="176640552" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Dec 2020 13:32:29 -0800 IronPort-SDR: 5d2LZ44wrauYPc/7nbeP9V0/omdscR0o76Ax4KpW9x+6XUYTyxzfS7JWjV0+dT5EuvfuoyPiX3 aLdklbGU7s2A== X-IronPort-AV: E=Sophos;i="5.78,459,1599548400"; d="scan'208";a="376189656" Received: from yyu32-desk.sc.intel.com ([143.183.136.146]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Dec 2020 13:32:29 -0800 From: Yu-cheng Yu To: x86@kernel.org, "H. Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Borislav Petkov , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V. Shankar" , Vedvyas Shanbhogue , Dave Martin , Weijiang Yang , Pengfei Xu Cc: Yu-cheng Yu Subject: [PATCH v17 22/26] binfmt_elf: Define GNU_PROPERTY_X86_FEATURE_1_AND properties Date: Tue, 29 Dec 2020 13:30:49 -0800 Message-Id: <20201229213053.16395-23-yu-cheng.yu@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20201229213053.16395-1-yu-cheng.yu@intel.com> References: <20201229213053.16395-1-yu-cheng.yu@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org An ELF file's .note.gnu.property indicates architecture features of the file. Introduce feature definitions for Shadow Stack and Indirect Branch Tracking. Signed-off-by: Yu-cheng Yu --- include/uapi/linux/elf.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h index 30f68b42eeb5..7f0e46780a35 100644 --- a/include/uapi/linux/elf.h +++ b/include/uapi/linux/elf.h @@ -455,4 +455,13 @@ typedef struct elf64_note { /* Bits for GNU_PROPERTY_AARCH64_FEATURE_1_BTI */ #define GNU_PROPERTY_AARCH64_FEATURE_1_BTI (1U << 0) +/* .note.gnu.property types for x86: */ +#define GNU_PROPERTY_X86_FEATURE_1_AND 0xc0000002 + +/* Bits for GNU_PROPERTY_X86_FEATURE_1_AND */ +#define GNU_PROPERTY_X86_FEATURE_1_IBT 0x00000001 +#define GNU_PROPERTY_X86_FEATURE_1_SHSTK 0x00000002 +#define GNU_PROPERTY_X86_FEATURE_1_INVAL ~(GNU_PROPERTY_X86_FEATURE_1_IBT | \ + GNU_PROPERTY_X86_FEATURE_1_SHSTK) + #endif /* _UAPI_LINUX_ELF_H */ -- 2.21.0