[Qemu-devel] [PATCH v3 0/3] target/arm: Reduce overhead of cpu_get_tb_cpu_state

[Richard Henderson]

Changes since v2:
  * Do not cache VECLEN, VECSTRIDE, VFPEN.
    These variables come from VFP_FPSCR and VFP_FPEXC, not from
    system control registers.
  * Move HANDLER and STACKCHECK to rebuild_hflags_a32,
    instead of building them in rebuild_hflags_common.

Changes since v1:
  * Apparently I had started a last-minute API change, and failed to
    covert all of the users, and also failed to re-test afterward.
  * Retain assertions for --enable-debug-tcg.


r~



Richard Henderson (3):
  target/arm: Split out recompute_hflags et al
  target/arm: Rebuild hflags at el changes and MSR writes
  target/arm: Rely on hflags correct in cpu_get_tb_cpu_state

 target/arm/cpu.h           |  28 ++--
 target/arm/helper.h        |   3 +
 target/arm/internals.h     |   4 +
 linux-user/syscall.c       |   1 +
 target/arm/cpu.c           |   1 +
 target/arm/helper-a64.c    |   3 +
 target/arm/helper.c        | 266 ++++++++++++++++++++++---------------
 target/arm/machine.c       |   1 +
 target/arm/op_helper.c     |   1 +
 target/arm/translate-a64.c |   6 +-
 target/arm/translate.c     |  14 +-
 11 files changed, 212 insertions(+), 116 deletions(-)

-- 
2.17.2