[Qemu-devel] [PATCH v2 00/27] tcg: Add CPUClass::tlb_fill

[Richard Henderson]

Changes from v1:
  * Do not unify user-only and system tlb_fill functions
    (alpha, microblaze, nios2, s390x, sparc, xtensa).
  * Split the mips patch into multiple.
  * Other random changes per review.

Patches without review:
0009-target-microblaze-Convert-to-CPUClass-tlb_fill.patch
0010-target-mips-Pass-a-valid-error-to-raise_mmu_excep.patch (new)
0011-target-mips-Tidy-control-flow-in-mips_cpu_handle_.patch (new)
0012-target-mips-Convert-to-CPUClass-tlb_fill.patch
0014-target-nios2-Convert-to-CPUClass-tlb_fill.patch
0018-target-s390x-Convert-to-CPUClass-tlb_fill.patch
0020-target-sparc-Convert-to-CPUClass-tlb_fill.patch
0024-target-xtensa-Convert-to-CPUClass-tlb_fill.patch

Blurb from v1:

There is currently a lot of confusion between foo_cpu_handle_mmu_fault
and tlb_fill.

In particular, foo_cpu_handle_mmu_fault was only defined for user-only,
and its only valid action was to set up the cpu for cpu_loop_exit so
that we can deliver a SIGSEGV to the guest.  And yet, we had code that
tried to return from the host SIGSEGV handler to retry the instruction.

We had, for some targets, a definition of foo_cpu_handle_mmu_fault
for softmmu.  Sometimes this was called from tlb_fill, sometimes not.

Finally, we have a use case for SVE that wants a non-faulting tlb_fill,
so while we're changing the interface, let's go ahead and include that.


r~


Richard Henderson (27):
  tcg: Add CPUClass::tlb_fill
  target/alpha: Convert to CPUClass::tlb_fill
  target/arm: Convert to CPUClass::tlb_fill
  target/cris: Convert to CPUClass::tlb_fill
  target/hppa: Convert to CPUClass::tlb_fill
  target/i386: Convert to CPUClass::tlb_fill
  target/lm32: Convert to CPUClass::tlb_fill
  target/m68k: Convert to CPUClass::tlb_fill
  target/microblaze: Convert to CPUClass::tlb_fill
  target/mips: Pass a valid error to raise_mmu_exception for user-only
  target/mips: Tidy control flow in mips_cpu_handle_mmu_fault
  target/mips: Convert to CPUClass::tlb_fill
  target/moxie: Convert to CPUClass::tlb_fill
  target/nios2: Convert to CPUClass::tlb_fill
  target/openrisc: Convert to CPUClass::tlb_fill
  target/ppc: Convert to CPUClass::tlb_fill
  target/riscv: Convert to CPUClass::tlb_fill
  target/s390x: Convert to CPUClass::tlb_fill
  target/sh4: Convert to CPUClass::tlb_fill
  target/sparc: Convert to CPUClass::tlb_fill
  target/tilegx: Convert to CPUClass::tlb_fill
  target/tricore: Convert to CPUClass::tlb_fill
  target/unicore32: Convert to CPUClass::tlb_fill
  target/xtensa: Convert to CPUClass::tlb_fill
  tcg: Use CPUClass::tlb_fill in cputlb.c
  tcg: Remove CPUClass::handle_mmu_fault
  tcg: Use tlb_fill probe from tlb_vaddr_to_host

 include/exec/cpu_ldst.h         |  50 ++-------
 include/exec/exec-all.h         |   9 --
 include/qom/cpu.h               |  12 +-
 target/alpha/cpu.h              |   5 +-
 target/arm/internals.h          |  10 +-
 target/cris/cpu.h               |   5 +-
 target/hppa/cpu.h               |   8 +-
 target/i386/cpu.h               |   5 +-
 target/lm32/cpu.h               |   5 +-
 target/m68k/cpu.h               |   5 +-
 target/microblaze/cpu.h         |   5 +-
 target/mips/internal.h          |   5 +-
 target/moxie/cpu.h              |   5 +-
 target/nios2/cpu.h              |   5 +-
 target/openrisc/cpu.h           |   5 +-
 target/ppc/cpu.h                |   7 +-
 target/riscv/cpu.h              |   5 +-
 target/s390x/internal.h         |   5 +-
 target/sh4/cpu.h                |   5 +-
 target/sparc/cpu.h              |   5 +-
 target/tricore/cpu.h            |   6 +-
 target/unicore32/cpu.h          |   5 +-
 target/xtensa/cpu.h             |   5 +-
 accel/tcg/cputlb.c              |  88 +++++++++++++--
 accel/tcg/user-exec.c           |  36 ++----
 target/alpha/cpu.c              |   5 +-
 target/alpha/helper.c           |  24 ++--
 target/alpha/mem_helper.c       |  16 ---
 target/arm/cpu.c                |  22 +---
 target/arm/helper.c             |  90 ++++++++-------
 target/arm/op_helper.c          |  29 +----
 target/arm/sve_helper.c         |   6 +-
 target/cris/cpu.c               |   5 +-
 target/cris/helper.c            |  61 ++++++-----
 target/cris/op_helper.c         |  28 -----
 target/hppa/cpu.c               |   5 +-
 target/hppa/mem_helper.c        |  16 ++-
 target/i386/cpu.c               |   5 +-
 target/i386/excp_helper.c       |  53 +++++----
 target/i386/mem_helper.c        |  21 ----
 target/lm32/cpu.c               |   5 +-
 target/lm32/helper.c            |   8 +-
 target/lm32/op_helper.c         |  16 ---
 target/m68k/cpu.c               |   2 +-
 target/m68k/helper.c            |  89 ++++++++-------
 target/m68k/op_helper.c         |  15 ---
 target/microblaze/cpu.c         |   5 +-
 target/microblaze/helper.c      | 101 ++++++++---------
 target/microblaze/op_helper.c   |  19 ----
 target/mips/cpu.c               |   5 +-
 target/mips/helper.c            |  81 ++++++--------
 target/mips/op_helper.c         |  15 ---
 target/moxie/cpu.c              |   5 +-
 target/moxie/helper.c           |  65 +++--------
 target/nios2/cpu.c              |   5 +-
 target/nios2/helper.c           | 166 ++++++++++++++--------------
 target/nios2/mmu.c              |  12 --
 target/openrisc/cpu.c           |   5 +-
 target/openrisc/mmu.c           |  69 ++++++------
 target/ppc/mmu_helper.c         |  16 ++-
 target/ppc/translate_init.inc.c |   5 +-
 target/ppc/user_only_helper.c   |  14 ++-
 target/riscv/cpu.c              |   5 +-
 target/riscv/cpu_helper.c       |  50 ++++-----
 target/s390x/cpu.c              |   5 +-
 target/s390x/excp_helper.c      |  67 +++++++----
 target/s390x/mem_helper.c       |  16 ---
 target/sh4/cpu.c                |   5 +-
 target/sh4/helper.c             | 189 +++++++++++++++-----------------
 target/sh4/op_helper.c          |  12 --
 target/sparc/cpu.c              |   5 +-
 target/sparc/ldst_helper.c      |  15 ---
 target/sparc/mmu_helper.c       |  78 +++++++------
 target/tilegx/cpu.c             |  10 +-
 target/tricore/cpu.c            |   1 +
 target/tricore/helper.c         |  23 ++--
 target/tricore/op_helper.c      |  26 -----
 target/unicore32/cpu.c          |   5 +-
 target/unicore32/helper.c       |  23 ----
 target/unicore32/op_helper.c    |  14 ---
 target/unicore32/softmmu.c      |  13 ++-
 target/xtensa/cpu.c             |   5 +-
 target/xtensa/helper.c          |  33 +++---
 83 files changed, 876 insertions(+), 1139 deletions(-)

-- 
2.17.1