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[PATCH 00/23] Fix NB_MMU_MODES to 16


From: Anton Johansson
Subject: [PATCH 00/23] Fix NB_MMU_MODES to 16
Date: Mon, 6 Mar 2023 18:52:07 +0100

This patchset fixes NB_MMU_MODES to 16 for all targets, meaning the
macro is no longer target-specific.  16 mmu modes is large enough to
cover all currently supported targets (12 arm, 10 ppc, ...), and is the
maxiumum supported by the softmmu tlb api.

As mentioned by Richard in response to our RFC, softmmu tlbs are
dynamically resized and so the overhead of an unused mmu index is fairly
low.

The grand goal is to allow for heterogeneous QEMU binaries
consisting of multiple frontends.

RFC: https://lists.nongnu.org/archive/html/qemu-devel/2022-12/msg04518.html

Anton Johansson (23):
  include/exec: Set default `NB_MMU_MODES` to 16
  target/alpha: Remove `NB_MMU_MODES` define
  target/arm: Remove `NB_MMU_MODES` define
  target/avr: Remove `NB_MMU_MODES` define
  target/cris: Remove `NB_MMU_MODES` define
  target/hexagon: Remove `NB_MMU_MODES` define
  target/hppa: Remove `NB_MMU_MODES` define
  target/i386: Remove `NB_MMU_MODES` define
  target/loongarch: Remove `NB_MMU_MODES` define
  target/m68k: Remove `NB_MMU_MODES` define
  target/microblaze: Remove `NB_MMU_MODES` define
  target/mips: Remove `NB_MMU_MODES` define
  target/nios2: Remove `NB_MMU_MODES` define
  target/openrisc: Remove `NB_MMU_MODES` define
  target/ppc: Remove `NB_MMU_MODES` define
  target/riscv: Remove `NB_MMU_MODES` define
  target/rx: Remove `NB_MMU_MODES` define
  target/s390x: Remove `NB_MMU_MODES` define
  target/sh4: Remove `NB_MMU_MODES` define
  target/sparc: Remove `NB_MMU_MODES` define
  target/tricore: Remove `NB_MMU_MODES` define
  target/xtensa: Remove `NB_MMU_MODES` define
  include/exec: Remove guards around `NB_MMU_MODES`

 include/exec/cpu-defs.h       | 9 ++++++---
 target/alpha/cpu-param.h      | 2 --
 target/arm/cpu-param.h        | 2 --
 target/avr/cpu-param.h        | 1 -
 target/cris/cpu-param.h       | 1 -
 target/hexagon/cpu-param.h    | 2 --
 target/hppa/cpu-param.h       | 1 -
 target/i386/cpu-param.h       | 1 -
 target/loongarch/cpu-param.h  | 1 -
 target/m68k/cpu-param.h       | 1 -
 target/microblaze/cpu-param.h | 1 -
 target/microblaze/cpu.h       | 2 +-
 target/mips/cpu-param.h       | 1 -
 target/nios2/cpu-param.h      | 1 -
 target/openrisc/cpu-param.h   | 1 -
 target/ppc/cpu-param.h        | 1 -
 target/riscv/cpu-param.h      | 1 -
 target/rx/cpu-param.h         | 2 --
 target/s390x/cpu-param.h      | 1 -
 target/sh4/cpu-param.h        | 1 -
 target/sparc/cpu-param.h      | 2 --
 target/tricore/cpu-param.h    | 1 -
 target/xtensa/cpu-param.h     | 1 -
 23 files changed, 7 insertions(+), 30 deletions(-)

--
2.39.1



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