[v8,00/14] Control-flow Enforcement: Branch Tracking, PTRACE

Message

Yu-cheng Yu Aug. 13, 2019, 8:53 p.m. UTC

The previous version of CET Branch Tracking/PTRACE patches is here:

  https://lkml.org/lkml/2019/6/6/1030

Summary of changes from v7:

  Change legacy bitmap to a special mapping (patch #14).
  Rebase to v5.3-rc4.
  Small fixes in response to comments.

H.J. Lu (5):
  x86/cet/ibt: Add arch_prctl functions for IBT
  x86/vdso: Insert endbr32/endbr64 to vDSO
  x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point
  x86/vsyscall/64: Add ENDBR64 to vsyscall entry points
  x86: Discard .note.gnu.property sections

Yu-cheng Yu (9):
  x86/cet/ibt: Add Kconfig option for user-mode Indirect Branch Tracking
  x86/cet/ibt: User-mode indirect branch tracking support
  x86/cet/ibt: Handle signals for end branch
  mm/mmap: Add IBT bitmap size to address space limit check
  x86/cet/ibt: ELF header parsing for IBT
  x86/cet/ibt: Add ENDBR to op-code-map
  x86/vsyscall/64: Fixup shadow stack and branch tracking for vsyscall
  x86/cet: Add PTRACE interface for CET
  Introduce arch_prctl(ARCH_X86_CET_MARK_LEGACY_CODE)

 arch/x86/Kconfig                              |  17 ++
 arch/x86/Makefile                             |   7 +
 arch/x86/entry/vdso/Makefile                  |  12 +-
 arch/x86/entry/vdso/vdso-layout.lds.S         |   1 +
 arch/x86/entry/vdso/vdso32/system_call.S      |   3 +
 arch/x86/entry/vsyscall/vsyscall_64.c         |  29 +++
 arch/x86/entry/vsyscall/vsyscall_emu_64.S     |   9 +
 arch/x86/entry/vsyscall/vsyscall_trace.h      |   1 +
 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/asm/mmu_context.h            |  10 +
 arch/x86/include/asm/processor.h              |  13 +-
 arch/x86/include/uapi/asm/prctl.h             |   3 +
 arch/x86/kernel/Makefile                      |   2 +-
 arch/x86/kernel/cet.c                         |  54 +++++
 arch/x86/kernel/cet_bitmap.c                  | 210 ++++++++++++++++++
 arch/x86/kernel/cet_prctl.c                   |  19 ++
 arch/x86/kernel/cpu/common.c                  |  17 ++
 arch/x86/kernel/fpu/regset.c                  |  41 ++++
 arch/x86/kernel/process_64.c                  |   5 +
 arch/x86/kernel/ptrace.c                      |  16 ++
 arch/x86/kernel/vmlinux.lds.S                 |  10 +
 arch/x86/lib/x86-opcode-map.txt               |  13 +-
 include/uapi/linux/elf.h                      |   1 +
 mm/memory.c                                   |   8 +
 mm/mmap.c                                     |  19 +-
 .../arch/x86/include/asm/disabled-features.h  |   8 +-
 tools/objtool/arch/x86/lib/x86-opcode-map.txt |  13 +-
 29 files changed, 552 insertions(+), 13 deletions(-)
 create mode 100644 arch/x86/kernel/cet_bitmap.c