[PATCH v3 00/41] Mirror map JIT memory for TCG

[Richard Henderson]

This is my take on Joelle's patch set:
https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg07837.html

Changes for v3:
  * Even more patches -- all tcg backends converted.
  * Fixups for darwin/ios merged (Joelle).
  * Feature renamed to splitwx (Paolo).


r~


Richard Henderson (41):
  tcg: Enhance flush_icache_range with separate data pointer
  tcg: Move tcg prologue pointer out of TCGContext
  tcg: Move tcg epilogue pointer out of TCGContext
  tcg: Add in_code_gen_buffer
  tcg: Introduce tcg_splitwx_to_{rx,rw}
  tcg: Adjust TCGLabel for const
  tcg: Adjust tcg_out_call for const
  tcg: Adjust tcg_out_label for const
  tcg: Adjust tcg_register_jit for const
  tcg: Adjust tb_target_set_jmp_target for split-wx
  tcg: Make DisasContextBase.tb const
  tcg: Make tb arg to synchronize_from_tb const
  tcg: Use Error with alloc_code_gen_buffer
  tcg: Add --accel tcg,split-wx property
  accel/tcg: Support split-wx for linux with memfd
  accel/tcg: Support split-wx for darwin/iOS with vm_remap
  tcg: Return the TB pointer from the rx region from exit_tb
  tcg/i386: Support split-wx code generation
  tcg/aarch64: Use B not BL for tcg_out_goto_long
  tcg/aarch64: Implement flush_idcache_range manually
  tcg/aarch64: Support split-wx code generation
  disas: Push const down through host disasassembly
  tcg/tci: Push const down through bytecode reading
  tcg: Introduce tcg_tbrel_diff
  tcg/ppc: Use tcg_tbrel_diff
  tcg/ppc: Use tcg_out_mem_long to reset TCG_REG_TB
  tcg/ppc: Support split-wx code generation
  tcg/sparc: Use tcg_tbrel_diff
  tcg/sparc: Support split-wx code generation
  tcg/s390: Use tcg_tbrel_diff
  tcg/s390: Support split-wx code generation
  tcg/riscv: Fix branch range checks
  tcg/riscv: Remove branch-over-branch fallback
  tcg/riscv: Support split-wx code generation
  accel/tcg: Add mips support to alloc_code_gen_buffer_splitwx_memfd
  tcg/mips: Do not assert on relocation overflow
  tcg/mips: Support split-wx code generation
  tcg/arm: Support split-wx code generation
  tcg: Remove TCG_TARGET_SUPPORT_MIRROR
  tcg: Constify tcg_code_gen_epilogue
  tcg: Constify TCGLabelQemuLdst.raddr

 accel/tcg/tcg-runtime.h      |   2 +-
 include/disas/dis-asm.h      |   4 +-
 include/disas/disas.h        |   2 +-
 include/exec/exec-all.h      |   2 +-
 include/exec/gen-icount.h    |   4 +-
 include/exec/log.h           |   2 +-
 include/exec/translator.h    |   2 +-
 include/hw/core/cpu.h        |   3 +-
 include/sysemu/tcg.h         |   3 +-
 include/tcg/tcg-op.h         |   2 +-
 include/tcg/tcg.h            |  56 +++++--
 tcg/aarch64/tcg-target.h     |   8 +-
 tcg/arm/tcg-target.h         |  10 +-
 tcg/i386/tcg-target.h        |   9 +-
 tcg/mips/tcg-target.h        |  10 +-
 tcg/ppc/tcg-target.h         |   4 +-
 tcg/riscv/tcg-target.h       |  10 +-
 tcg/s390/tcg-target.h        |  11 +-
 tcg/sparc/tcg-target.h       |  10 +-
 tcg/tci/tcg-target.h         |  11 +-
 accel/tcg/cpu-exec.c         |  41 +++--
 accel/tcg/tcg-all.c          |  26 ++-
 accel/tcg/tcg-runtime.c      |   4 +-
 accel/tcg/translate-all.c    | 307 +++++++++++++++++++++++++++--------
 accel/tcg/translator.c       |   4 +-
 bsd-user/main.c              |   2 +-
 disas.c                      |   2 +-
 disas/capstone.c             |   2 +-
 linux-user/main.c            |   2 +-
 softmmu/physmem.c            |   9 +-
 target/arm/cpu.c             |   3 +-
 target/arm/translate-a64.c   |   2 +-
 target/avr/cpu.c             |   3 +-
 target/hppa/cpu.c            |   3 +-
 target/i386/cpu.c            |   3 +-
 target/microblaze/cpu.c      |   3 +-
 target/mips/cpu.c            |   3 +-
 target/riscv/cpu.c           |   3 +-
 target/rx/cpu.c              |   3 +-
 target/sh4/cpu.c             |   3 +-
 target/sparc/cpu.c           |   3 +-
 target/tricore/cpu.c         |   2 +-
 tcg/tcg-op.c                 |  15 +-
 tcg/tcg.c                    |  86 ++++++++--
 tcg/tci.c                    |  60 ++++---
 accel/tcg/trace-events       |   2 +-
 tcg/aarch64/tcg-target.c.inc | 139 ++++++++++++----
 tcg/arm/tcg-target.c.inc     |  41 ++---
 tcg/i386/tcg-target.c.inc    |  36 ++--
 tcg/mips/tcg-target.c.inc    |  97 +++++------
 tcg/ppc/tcg-target.c.inc     | 105 ++++++------
 tcg/riscv/tcg-target.c.inc   | 125 +++++---------
 tcg/s390/tcg-target.c.inc    |  91 +++++------
 tcg/sparc/tcg-target.c.inc   |  58 +++----
 tcg/tcg-ldst.c.inc           |   2 +-
 tcg/tcg-pool.c.inc           |   6 +-
 tcg/tci/tcg-target.c.inc     |   2 +-
 57 files changed, 917 insertions(+), 546 deletions(-)

-- 
2.25.1