Control-flow Enforcement (CET) is a new Intel processor feature that blocks
return/jump-oriented programming attacks.  Details are in "Intel 64 and
IA-32 Architectures Software Developer's Manual" [1].

This is the second part of CET and enables Indirect Branch Tracking (IBT).
It is built on top of the shadow stack series.

Changes in v15:
- Rebase to v5.10-rc3.
- Remove changes to tools/arch/x86/include/ files.

[1] Intel 64 and IA-32 Architectures Software Developer's Manual:

    https://software.intel.com/en-us/download/intel-64-and-ia-32-
    architectures-sdm-combined-volumes-1-2a-2b-2c-2d-3a-3b-3c-3d-and-4

[2] Indirect Branch Tracking patches v14:

    https://lkml.kernel.org/r/20201012154530.28382-1-yu-cheng.yu@intel.com/

H.J. Lu (3):
  x86/cet/ibt: Update arch_prctl functions for Indirect Branch Tracking
  x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point
  x86/vdso: Insert endbr32/endbr64 to vDSO

Yu-cheng Yu (4):
  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 Indirect Branch Tracking
  x86/cet/ibt: ELF header parsing for Indirect Branch Tracking

 arch/x86/Kconfig                         | 21 +++++++++
 arch/x86/entry/vdso/Makefile             |  4 ++
 arch/x86/entry/vdso/vdso32/system_call.S |  3 ++
 arch/x86/include/asm/cet.h               |  3 ++
 arch/x86/include/asm/disabled-features.h |  8 +++-
 arch/x86/kernel/cet.c                    | 60 +++++++++++++++++++++++-
 arch/x86/kernel/cet_prctl.c              |  8 +++-
 arch/x86/kernel/cpu/common.c             | 17 +++++++
 arch/x86/kernel/fpu/signal.c             |  8 ++--
 arch/x86/kernel/process_64.c             |  8 ++++
 10 files changed, 133 insertions(+), 7 deletions(-)

-- 
2.21.0