From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com ([192.55.52.93]:13767 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390777AbeIUU7p (ORCPT ); Fri, 21 Sep 2018 16:59:45 -0400 From: Yu-cheng Yu Subject: [RFC PATCH v4 0/9] Control Flow Enforcement: Branch Tracking, PTRACE Date: Fri, 21 Sep 2018 08:05:44 -0700 Message-ID: <20180921150553.21016-1-yu-cheng.yu@intel.com> Sender: linux-arch-owner@vger.kernel.org List-ID: 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 Message-ID: <20180921150544.GDPBRprdaDIhnXQXhjc6DhLmfZv8y8VhKIrWuU-G8Y8@z> The previous version of CET patches can be found in the following link: https://lkml.org/lkml/2018/8/30/582 Summary of changes from v3: Move IBT legacy code bitmap allocation back to when the application requests it. Most application do not need the bitmap. It is only used when an application does dlopen() a legacy library. In the previous version, we pre-allocated the bitmap for every IBT- enabled application to avoid creating a hole in the linear address. However, this created a problem when the system has limited memory. H.J. Lu (1): x86: Insert endbr32/endbr64 to vDSO Yu-cheng Yu (8): x86/cet/ibt: Add Kconfig option for user-mode Indirect Branch Tracking x86/cet/ibt: User-mode indirect branch tracking support x86/cet/ibt: Add IBT legacy code bitmap allocation function mm/mmap: Add IBT bitmap size to address space limit check x86/cet/ibt: ELF header parsing for IBT x86/cet/ibt: Add arch_prctl functions for IBT x86/cet/ibt: Add ENDBR to op-code-map x86/cet: Add PTRACE interface for CET arch/x86/Kconfig | 12 +++ arch/x86/Makefile | 7 ++ arch/x86/entry/vdso/.gitignore | 4 + arch/x86/entry/vdso/Makefile | 12 ++- arch/x86/entry/vdso/vdso-layout.lds.S | 1 + arch/x86/include/asm/cet.h | 8 ++ arch/x86/include/asm/disabled-features.h | 8 +- arch/x86/include/asm/fpu/regset.h | 7 +- arch/x86/include/uapi/asm/elf_property.h | 1 + arch/x86/include/uapi/asm/prctl.h | 1 + arch/x86/include/uapi/asm/resource.h | 5 ++ arch/x86/kernel/cet.c | 76 +++++++++++++++++++ arch/x86/kernel/cet_prctl.c | 38 +++++++++- arch/x86/kernel/cpu/common.c | 20 ++++- arch/x86/kernel/elf.c | 8 +- arch/x86/kernel/fpu/regset.c | 41 ++++++++++ arch/x86/kernel/process.c | 2 + arch/x86/kernel/ptrace.c | 16 ++++ arch/x86/lib/x86-opcode-map.txt | 13 +++- include/uapi/asm-generic/resource.h | 3 + include/uapi/linux/elf.h | 1 + mm/mmap.c | 12 ++- tools/objtool/arch/x86/lib/x86-opcode-map.txt | 13 +++- 23 files changed, 296 insertions(+), 13 deletions(-) -- 2.17.1