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

[Joelle van Dyne]

Hi, I'm wondering what the progress is for this patch set and the iOS
support one? I know 5.2 is frozen, so will this be considered for 6.0?
Apple Silicon Macs are out now and a few people are asking about QEMU
support :)

-j

On Thu, Nov 5, 2020 at 9:29 PM Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> 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
>