From patchwork Fri Sep 25 14:56:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu-cheng Yu X-Patchwork-Id: 11800005 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5413592C for ; Fri, 25 Sep 2020 14:58:22 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1DBDF20715 for ; Fri, 25 Sep 2020 14:58:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1DBDF20715 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6327E6B008C; Fri, 25 Sep 2020 10:57:31 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 5BAB76B0092; Fri, 25 Sep 2020 10:57:31 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3E83C8E0001; Fri, 25 Sep 2020 10:57:31 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0228.hostedemail.com [216.40.44.228]) by kanga.kvack.org (Postfix) with ESMTP id 1B45A6B0092 for ; Fri, 25 Sep 2020 10:57:31 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id D19911E06 for ; Fri, 25 Sep 2020 14:57:30 +0000 (UTC) X-FDA: 77301887460.21.can28_110d2a427168 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin21.hostedemail.com (Postfix) with ESMTP id 92AB1180442C3 for ; Fri, 25 Sep 2020 14:57:30 +0000 (UTC) X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,yu-cheng.yu@intel.com,,RULES_HIT:30054:30056:30064,0,RBL:134.134.136.65:@intel.com:.lbl8.mailshell.net-62.18.0.100 64.95.201.95;04yfby65kimquxgqaw8cm3gq3g1tyopptqj71fci5rndinhfazixr8uujj5bsj8.hqyfbrfqyi9epxcm4q687oxwe7zqnq4arow7hbr9j4tead6epgwue647bzgjggd.g-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:ft,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:23,LUA_SUMMARY:none X-HE-Tag: can28_110d2a427168 X-Filterd-Recvd-Size: 3714 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by imf40.hostedemail.com (Postfix) with ESMTP for ; Fri, 25 Sep 2020 14:57:29 +0000 (UTC) IronPort-SDR: YPdU9bVgHzvqxLg9FyO3/D+gEWsVfMxfOY0VDGCGWKASEJXRvCviMTjCv7thw7zc2NkIj9+3DU Led+U1dd/AJA== X-IronPort-AV: E=McAfee;i="6000,8403,9755"; a="161631942" X-IronPort-AV: E=Sophos;i="5.77,302,1596524400"; d="scan'208";a="161631942" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 07:57:29 -0700 IronPort-SDR: wyuahIEijPJ91wODD6m5UQ83vVG6YLKB3SlUDyIKUy/rt2rVVc24L31uwZxt3e/oViHVhdXOaz PvWBULul6jgw== X-IronPort-AV: E=Sophos;i="5.77,302,1596524400"; d="scan'208";a="487499239" Received: from yyu32-desk.sc.intel.com ([143.183.136.146]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2020 07:57:28 -0700 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 v13 22/26] binfmt_elf: Define GNU_PROPERTY_X86_FEATURE_1_AND properties Date: Fri, 25 Sep 2020 07:56:45 -0700 Message-Id: <20200925145649.5438-23-yu-cheng.yu@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200925145649.5438-1-yu-cheng.yu@intel.com> References: <20200925145649.5438-1-yu-cheng.yu@intel.com> MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 22220945a5fd..ca5875f384f6 100644 --- a/include/uapi/linux/elf.h +++ b/include/uapi/linux/elf.h @@ -454,4 +454,13 @@ 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 */