[PATCH v8 00/11] target/riscv: rework CPU extension validation

[Daniel Henrique Barboza]

Hi,

This version dropped patch 12 from v7. Alistair mentioned that it would
limiti static CPUs needlesly, since there's nothing preventing a static
CPU to allow for extension changes during runtime, and that misa-w is
enough to prevent write_misa() during runtime. I agree.

I also amended the commit message of patch 11 to remove any mention
about misa_ext_mask rollbacks (which the code wasn't doing). The patch
itself is changing validate_set_extensions() to avoid misa_ext_mask to
be overwritten during write_misa() in the first place, so no
misa_ext_mask rollback should be even mentioned.


Changes from v7:
- patch 12: drooped
- patch 11: use a sane commit message.
- v7 link: https://lists.gnu.org/archive/html/qemu-devel/2023-04/msg02916.html

Daniel Henrique Barboza (9):
  target/riscv/cpu.c: add riscv_cpu_validate_v()
  target/riscv/cpu.c: remove set_vext_version()
  target/riscv/cpu.c: remove set_priv_version()
  target/riscv: add PRIV_VERSION_LATEST
  target/riscv/cpu.c: add priv_spec validate/disable_exts helpers
  target/riscv/cpu.c: add riscv_cpu_validate_misa_mxl()
  target/riscv/cpu.c: validate extensions before riscv_timer_init()
  target/riscv/cpu.c: remove cfg setup from riscv_cpu_init()
  target/riscv: rework write_misa()

Weiwei Li (2):
  target/riscv: Mask the implicitly enabled extensions in isa_string
    based on priv version
  target/riscv: Update check for Zca/Zcf/Zcd

 target/riscv/cpu.c                      | 333 ++++++++++++++----------
 target/riscv/cpu.h                      |   3 +
 target/riscv/csr.c                      |  47 ++--
 target/riscv/insn_trans/trans_rvd.c.inc |  12 +-
 target/riscv/insn_trans/trans_rvf.c.inc |  14 +-
 target/riscv/insn_trans/trans_rvi.c.inc |   5 +-
 target/riscv/translate.c                |   5 +-
 7 files changed, 244 insertions(+), 175 deletions(-)

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2.40.0