[PATCH 4.4 00/18] V4.4 backport of 32-bit arm spectre patches

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From: "David A. Long" <dave.long@xxxxxxxxxx>

V4.4 backport of spectre patches from Russell M. King's spectre branch.
Most KVM patches are excluded. Patches not yet in upstream are excluded.

Russell King (18):
  ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs
  ARM: bugs: prepare processor bug infrastructure
  ARM: bugs: hook processor bug checking into SMP and suspend paths
  ARM: bugs: add support for per-processor bug checking
  ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre
  ARM: spectre-v2: harden branch predictor on context switches
  ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit
  ARM: spectre-v2: harden user aborts in kernel space
  ARM: spectre-v2: warn about incorrect context switching functions
  ARM: spectre-v1: add speculation barrier (csdb) macros
  ARM: spectre-v1: add array_index_mask_nospec() implementation
  ARM: spectre-v1: fix syscall entry
  ARM: signal: copy registers using __copy_from_user()
  ARM: vfp: use __copy_from_user() when restoring VFP state
  ARM: oabi-compat: copy semops using __copy_from_user()
  ARM: use __inttype() in get_user()
  ARM: spectre-v1: use get_user() for __get_user()
  ARM: spectre-v1: mitigate user accesses

 arch/arm/include/asm/assembler.h   |  12 +++
 arch/arm/include/asm/barrier.h     |  32 +++++++
 arch/arm/include/asm/bugs.h        |   6 +-
 arch/arm/include/asm/cp15.h        |  18 ++++
 arch/arm/include/asm/cputype.h     |   8 ++
 arch/arm/include/asm/proc-fns.h    |   4 +
 arch/arm/include/asm/system_misc.h |  15 ++++
 arch/arm/include/asm/thread_info.h |   4 +-
 arch/arm/include/asm/uaccess.h     |  25 ++++--
 arch/arm/kernel/Makefile           |   1 +
 arch/arm/kernel/bugs.c             |  18 ++++
 arch/arm/kernel/entry-common.S     |  18 ++--
 arch/arm/kernel/entry-header.S     |  25 ++++++
 arch/arm/kernel/signal.c           |  56 ++++++------
 arch/arm/kernel/smp.c              |   4 +
 arch/arm/kernel/suspend.c          |   2 +
 arch/arm/kernel/sys_oabi-compat.c  |   8 +-
 arch/arm/lib/copy_from_user.S      |   9 ++
 arch/arm/mm/Kconfig                |  23 +++++
 arch/arm/mm/Makefile               |   2 +-
 arch/arm/mm/fault.c                |   3 +
 arch/arm/mm/proc-macros.S          |   3 +-
 arch/arm/mm/proc-v7-2level.S       |   6 --
 arch/arm/mm/proc-v7-bugs.c         | 112 ++++++++++++++++++++++++
 arch/arm/mm/proc-v7.S              | 133 ++++++++++++++++++++++-------
 arch/arm/vfp/vfpmodule.c           |  17 ++--
 26 files changed, 462 insertions(+), 102 deletions(-)
 create mode 100644 arch/arm/kernel/bugs.c
 create mode 100644 arch/arm/mm/proc-v7-bugs.c

-- 
2.17.1




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