[PATCH 0/3] x86/bugs: BHI fixes / improvements - round 2

[Josh Poimboeuf]

BHI fixes round 2:

- An updated version of "Only harden syscalls when needed" with review
  comments addressed

- A BHI retpoline check fix

- Remove the obsolete LFENCE "retpolines"

Josh Poimboeuf (3):
  x86/bugs: Only harden syscalls when needed
  x86/bugs: Fix BHI retpoline check
  x86/bugs: Remove support for Spectre v2 LFENCE "retpolines"

 arch/x86/Makefile                             |  1 -
 arch/x86/entry/common.c                       | 15 +++-
 arch/x86/entry/syscall_32.c                   | 11 +--
 arch/x86/entry/syscall_64.c                   |  6 --
 arch/x86/entry/syscall_x32.c                  |  7 +-
 arch/x86/include/asm/cpufeatures.h            |  2 +-
 arch/x86/include/asm/disabled-features.h      |  3 +-
 arch/x86/include/asm/nospec-branch.h          | 18 +---
 arch/x86/include/asm/syscall.h                |  8 +-
 arch/x86/kernel/alternative.c                 | 17 +---
 arch/x86/kernel/cpu/bugs.c                    | 88 +++++++------------
 arch/x86/kernel/cpu/cpu.h                     |  3 +-
 arch/x86/lib/retpoline.S                      |  5 +-
 arch/x86/net/bpf_jit_comp.c                   |  5 +-
 tools/arch/x86/include/asm/cpufeatures.h      |  1 -
 .../arch/x86/include/asm/disabled-features.h  |  3 +-
 16 files changed, 69 insertions(+), 124 deletions(-)

-- 
2.44.0