From patchwork Wed Jan 27 21:30:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu-cheng Yu X-Patchwork-Id: 12051103 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=-16.7 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=ham 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 6B948C433E0 for ; Wed, 27 Jan 2021 21:30:59 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 06D7264DCD for ; Wed, 27 Jan 2021 21:30:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06D7264DCD 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 6447D6B0078; Wed, 27 Jan 2021 16:30:54 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 5464B6B0070; Wed, 27 Jan 2021 16:30:54 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 40F796B0074; Wed, 27 Jan 2021 16:30:54 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0068.hostedemail.com [216.40.44.68]) by kanga.kvack.org (Postfix) with ESMTP id 174166B0070 for ; Wed, 27 Jan 2021 16:30:54 -0500 (EST) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id CD393181AEF21 for ; Wed, 27 Jan 2021 21:30:53 +0000 (UTC) X-FDA: 77752849986.23.table17_04151c92759a Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin23.hostedemail.com (Postfix) with ESMTP id 94CA03760C for ; Wed, 27 Jan 2021 21:30:53 +0000 (UTC) X-HE-Tag: table17_04151c92759a X-Filterd-Recvd-Size: 3371 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by imf18.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 Jan 2021 21:30:52 +0000 (UTC) IronPort-SDR: DiAZidJqIKTHwVsbaiEeE4kbjEw/FzK5PcQqyerRKhnskVMOoNe+mwuiBVJZFuVLdxPl1+5q4r GBj9Uk43d0Pw== X-IronPort-AV: E=McAfee;i="6000,8403,9877"; a="167233440" X-IronPort-AV: E=Sophos;i="5.79,380,1602572400"; d="scan'208";a="167233440" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jan 2021 13:30:38 -0800 IronPort-SDR: Tx1cC08GivZUYttuXh7+gIEPGxfNwyqsuKccd1HrWAOI/LAOpBaNwvJdZ7eJwvnPAGwDqnzvhk B9X4sbKgllCA== X-IronPort-AV: E=Sophos;i="5.79,380,1602572400"; d="scan'208";a="362581380" Received: from yyu32-desk.sc.intel.com ([143.183.136.146]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jan 2021 13:30:37 -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 v18 6/7] x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point Date: Wed, 27 Jan 2021 13:30:27 -0800 Message-Id: <20210127213028.11362-7-yu-cheng.yu@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20210127213028.11362-1-yu-cheng.yu@intel.com> References: <20210127213028.11362-1-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: From: "H.J. Lu" Add ENDBR32 to __kernel_vsyscall entry point. Signed-off-by: H.J. Lu Signed-off-by: Yu-cheng Yu Acked-by: Andy Lutomirski --- arch/x86/entry/vdso/vdso32/system_call.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/entry/vdso/vdso32/system_call.S b/arch/x86/entry/vdso/vdso32/system_call.S index de1fff7188aa..f19eaec3de3b 100644 --- a/arch/x86/entry/vdso/vdso32/system_call.S +++ b/arch/x86/entry/vdso/vdso32/system_call.S @@ -14,6 +14,9 @@ ALIGN __kernel_vsyscall: CFI_STARTPROC +#ifdef CONFIG_X86_CET + endbr32 +#endif /* * Reshuffle regs so that all of any of the entry instructions * will preserve enough state.