[PATCH v2 0/3] Cortex-A77 erratum 1508412 work-around

[Rob Herring]

This series implements the work-around for Cortex-A77 erratum 1508412.
KVM guests which don't implement the work-around can still deadlock the
system. This is also the case with the existing Cortex-A57 erratum 832075,
so we add a warning message if an erratum can cause deadlock.

Rob

v1: https://lore.kernel.org/linux-arm-kernel/20200629213321.2953022-1-robh@kernel.org/

Rob Herring (3):
  KVM: arm64: Print warning when cpu erratum can cause guests to
    deadlock
  arm64: Add part number for Arm Cortex-A77
  arm64: Add workaround for Arm Cortex-A77 erratum 1508412

 Documentation/arm64/silicon-errata.rst |  2 ++
 arch/arm64/Kconfig                     | 19 +++++++++++++++++++
 arch/arm64/include/asm/cpucaps.h       |  3 ++-
 arch/arm64/include/asm/cputype.h       |  2 ++
 arch/arm64/kernel/cpu_errata.c         | 10 ++++++++++
 arch/arm64/kvm/arm.c                   |  5 +++++
 arch/arm64/mm/fault.c                  | 10 ++++++++++
 7 files changed, 50 insertions(+), 1 deletion(-)

--
2.25.1