[PATCH 0/7] Control Flow Enforcement - Part (4)

[Yu-cheng Yu <yu-cheng.yu@intel.com>]

This series introduces CET - indirect branch tracking

The major task of indirect branch tracking is for the compiler to
insert the ENDBR instructions at all valid branch targets.

The kernel provides:
	CPUID enumeration and feature setup;
	Legacy bitmap allocation;
	Some basic supporting routines.

In this patch, there are also a CET command-line utility and
PTRACE support.

H.J. Lu (2):
  x86: Insert endbr32/endbr64 to vDSO
  tools: Add cetcmd

Yu-cheng Yu (5):
  x86/cet: Add Kconfig option for user-mode Indirect Branch Tracking
  x86/cet: User-mode indirect branch tracking support
  mm/mmap: Add IBT bitmap size to address space limit check
  x86/cet: add arcp_prctl functions for indirect branch tracking
  x86/cet: Add PTRACE interface for CET

 arch/x86/Kconfig                               |  12 +++
 arch/x86/entry/vdso/.gitignore                 |   4 +
 arch/x86/entry/vdso/Makefile                   |  34 +++++++
 arch/x86/entry/vdso/endbr.sh                   |  32 ++++++
 arch/x86/include/asm/cet.h                     |   9 ++
 arch/x86/include/asm/disabled-features.h       |   8 +-
 arch/x86/include/asm/fpu/regset.h              |   7 +-
 arch/x86/include/uapi/asm/prctl.h              |   1 +
 arch/x86/include/uapi/asm/resource.h           |   5 +
 arch/x86/kernel/cet.c                          |  73 ++++++++++++++
 arch/x86/kernel/cet_prctl.c                    |  54 +++++++++-
 arch/x86/kernel/cpu/common.c                   |  20 +++-
 arch/x86/kernel/elf.c                          |  19 +++-
 arch/x86/kernel/fpu/regset.c                   |  41 ++++++++
 arch/x86/kernel/process.c                      |   2 +
 arch/x86/kernel/ptrace.c                       |  16 +++
 include/uapi/asm-generic/resource.h            |   3 +
 include/uapi/linux/elf.h                       |   1 +
 mm/mmap.c                                      |   8 +-
 tools/Makefile                                 |  13 +--
 tools/arch/x86/include/uapi/asm/elf_property.h |  16 +++
 tools/arch/x86/include/uapi/asm/prctl.h        |  33 ++++++
 tools/cet/.gitignore                           |   1 +
 tools/cet/Makefile                             |  11 ++
 tools/cet/cetcmd.c                             | 134 +++++++++++++++++++++++++
 tools/include/uapi/asm/elf_property.h          |   4 +
 tools/include/uapi/asm/prctl.h                 |   4 +
 27 files changed, 549 insertions(+), 16 deletions(-)
 create mode 100644 arch/x86/entry/vdso/endbr.sh
 create mode 100644 tools/arch/x86/include/uapi/asm/elf_property.h
 create mode 100644 tools/arch/x86/include/uapi/asm/prctl.h
 create mode 100644 tools/cet/.gitignore
 create mode 100644 tools/cet/Makefile
 create mode 100644 tools/cet/cetcmd.c
 create mode 100644 tools/include/uapi/asm/elf_property.h
 create mode 100644 tools/include/uapi/asm/prctl.h

-- 
2.15.1