[PATCH v4 0/9] Implement Most ARMv8.3 Pointer Authentication Features

[Richard Henderson]

This is an update of Aaron's v3 [1].
There are a fair number of changes beyond a mere rebase:

  * Updates to the test cases which fail with the new features.
  * Updates to the documentation.
  * Preserve pauth feature set when changing pauth algorithm.
  * Rearrange feature detection:
     - Add ARMPauthFeature
     - Use it with isar_feature_pauth_feature
     - Remove many of the isar predicates
    The pauth_auth and pauth_addpac routines wind up making lots
    of tests against the pauth feature set.  Rather than recompute
    the feature set many times for each predicate, compute it once
    and compare against the enumerators.
  * Algorithmic simplification of Pauth2 and FPAC using cmp_mask.

r~

[1] 
https://patchew.org/QEMU/20230322202541.1404058-1-aaron@os.amperecomputing.com/

Aaron Lindsay (6):
  target/arm: Add ID_AA64ISAR2_EL1
  target/arm: Add feature detection for FEAT_Pauth2 and extensions
  target/arm: Implement FEAT_EPAC
  target/arm: Implement FEAT_Pauth2
  targer/arm: Inform helpers whether a PAC instruction is 'combined'
  target/arm: Implement FEAT_FPAC and FEAT_FPACCOMBINE

Richard Henderson (3):
  tests/tcg/aarch64: Adjust pauth tests for FEAT_FPAC
  target/arm: Don't change pauth features when changing algorithm
  target/arm: Implement FEAT_PACQARMA3

 docs/system/arm/cpu-features.rst  |  21 ++--
 docs/system/arm/emulation.rst     |   7 ++
 target/arm/cpu.h                  |  51 +++++++--
 target/arm/syndrome.h             |   7 ++
 target/arm/tcg/helper-a64.h       |   4 +
 target/arm/arm-qmp-cmds.c         |   2 +-
 target/arm/cpu64.c                |  86 ++++++++++----
 target/arm/helper.c               |   4 +-
 target/arm/hvf/hvf.c              |   1 +
 target/arm/kvm64.c                |   2 +
 target/arm/tcg/cpu64.c            |   2 +
 target/arm/tcg/pauth_helper.c     | 180 ++++++++++++++++++++++++------
 target/arm/tcg/translate-a64.c    |  12 +-
 tests/qtest/arm-cpu-features.c    |  12 +-
 tests/tcg/aarch64/pauth-2.c       |  61 ++++++++--
 tests/tcg/aarch64/pauth-4.c       |  28 ++++-
 tests/tcg/aarch64/pauth-5.c       |  20 ++++
 tests/tcg/aarch64/Makefile.target |   5 +-
 18 files changed, 409 insertions(+), 96 deletions(-)

-- 
2.34.1