From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-5.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable autolearn_force=no version=3.4.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id D9B1B7DE7B for ; Fri, 21 Sep 2018 15:11:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390897AbeIUU7s (ORCPT ); Fri, 21 Sep 2018 16:59:48 -0400 Received: from mga11.intel.com ([192.55.52.93]:13768 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390880AbeIUU7r (ORCPT ); Fri, 21 Sep 2018 16:59:47 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Sep 2018 08:10:28 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,285,1534834800"; d="scan'208";a="88187982" Received: from 2b52.sc.intel.com ([143.183.136.51]) by fmsmga002.fm.intel.com with ESMTP; 21 Sep 2018 08:10:28 -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 , Cyrill Gorcunov , Dave Hansen , 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 Cc: Yu-cheng Yu Subject: [RFC PATCH v4 7/9] x86/cet/ibt: Add ENDBR to op-code-map Date: Fri, 21 Sep 2018 08:05:51 -0700 Message-Id: <20180921150553.21016-8-yu-cheng.yu@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180921150553.21016-1-yu-cheng.yu@intel.com> References: <20180921150553.21016-1-yu-cheng.yu@intel.com> Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Add control transfer terminating instructions: ENDBR64/ENDBR32: Mark a valid 64/32-bit control transfer endpoint. Signed-off-by: Yu-cheng Yu --- arch/x86/lib/x86-opcode-map.txt | 13 +++++++++++-- tools/objtool/arch/x86/lib/x86-opcode-map.txt | 13 +++++++++++-- 2 files changed, 22 insertions(+), 4 deletions(-) diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt index c5e825d44766..fbc53481bc59 100644 --- a/arch/x86/lib/x86-opcode-map.txt +++ b/arch/x86/lib/x86-opcode-map.txt @@ -620,7 +620,16 @@ ea: SAVEPREVSSP (f3) # Skip 0xeb-0xff EndTable -Table: 3-byte opcode 2 (0x0f 0x38) +Table: 3-byte opcode 2 (0x0f 0x1e) +Referrer: +AVXcode: +# Skip 0x00-0xf9 +fa: ENDBR64 (f3) +fb: ENDBR32 (f3) +#skip 0xfc-0xff +EndTable + +Table: 3-byte opcode 3 (0x0f 0x38) Referrer: 3-byte escape 1 AVXcode: 2 # 0x0f 0x38 0x00-0x0f @@ -804,7 +813,7 @@ f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) | WRSS Pq,Qq f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v) EndTable -Table: 3-byte opcode 3 (0x0f 0x3a) +Table: 3-byte opcode 4 (0x0f 0x3a) Referrer: 3-byte escape 2 AVXcode: 3 # 0x0f 0x3a 0x00-0xff diff --git a/tools/objtool/arch/x86/lib/x86-opcode-map.txt b/tools/objtool/arch/x86/lib/x86-opcode-map.txt index c5e825d44766..fbc53481bc59 100644 --- a/tools/objtool/arch/x86/lib/x86-opcode-map.txt +++ b/tools/objtool/arch/x86/lib/x86-opcode-map.txt @@ -620,7 +620,16 @@ ea: SAVEPREVSSP (f3) # Skip 0xeb-0xff EndTable -Table: 3-byte opcode 2 (0x0f 0x38) +Table: 3-byte opcode 2 (0x0f 0x1e) +Referrer: +AVXcode: +# Skip 0x00-0xf9 +fa: ENDBR64 (f3) +fb: ENDBR32 (f3) +#skip 0xfc-0xff +EndTable + +Table: 3-byte opcode 3 (0x0f 0x38) Referrer: 3-byte escape 1 AVXcode: 2 # 0x0f 0x38 0x00-0x0f @@ -804,7 +813,7 @@ f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) | WRSS Pq,Qq f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v) EndTable -Table: 3-byte opcode 3 (0x0f 0x3a) +Table: 3-byte opcode 4 (0x0f 0x3a) Referrer: 3-byte escape 2 AVXcode: 3 # 0x0f 0x3a 0x00-0xff -- 2.17.1