[PATCHv2 0/7] arm64/kvm: common ESR_ELx definitions and decoding

[mark.rutland@arm.com (Mark Rutland)]

Currently we have two sets of macros used for ESR_ELx handling, one used
by core arm64 code and the other used by KVM. These differ slightly in
naming convention and style of definition.

This patch series introduces and migrates all users to a common set of
macros for ESR_ELx handling, preventing further drift.

Additionally this series adds exception class decoding when reporting
exceptions, saving deveopers from having to perform tedious mental
arithmetic to figure out what the likely cause of an unexpected
exception was.

Since v1 [1]:
* Reorder patches to maintain KVM bisectability.
* Fix bad definitions (ESR_ELx_SAS and ESR_ELx_FSC_PERM).
* Introcuce ESR_ELx_SAS_SHIFT and undo bad rework of 
  kvm_vcpu_dabt_get_as.
* Make "Unallocated EC" comments consistent in ESR_ELx_EC_* definition
  list.

Many thanks to those who have reviewed this so far.

Mark.

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/313934.html

Mark Rutland (7):
  arm64: introduce common ESR_ELx_* definitions
  arm64: move to ESR_ELx macros
  arm64: decode ESR_ELx.EC when reporting exceptions
  arm64: kvm: move to ESR_ELx macros
  arm64: remove ESR_EL1_* macros
  arm64: kvm: remove ESR_EL2_* macros
  arm64: kvm: decode ESR_ELx.EC when reporting exceptions

 arch/arm64/include/asm/esr.h         | 117 +++++++++++++++++++++++++----------
 arch/arm64/include/asm/kvm_arm.h     |  73 ++--------------------
 arch/arm64/include/asm/kvm_emulate.h |  28 +++++----
 arch/arm64/kernel/entry.S            |  64 +++++++++----------
 arch/arm64/kernel/signal32.c         |   2 +-
 arch/arm64/kernel/traps.c            |  50 ++++++++++++++-
 arch/arm64/kvm/emulate.c             |   5 +-
 arch/arm64/kvm/handle_exit.c         |  39 ++++++------
 arch/arm64/kvm/hyp.S                 |  17 ++---
 arch/arm64/kvm/inject_fault.c        |  14 ++---
 arch/arm64/kvm/sys_regs.c            |  23 ++++---
 arch/arm64/mm/fault.c                |   2 +-
 12 files changed, 237 insertions(+), 197 deletions(-)

-- 
1.9.1